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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.199 by root, Mon Jan 29 14:46:01 2007 UTC vs.
Revision 1.411 by root, Fri Feb 1 15:54:07 2008 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV 1.86;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.5 ();	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
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::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
20	use Data::Dumper;	29	use Data::Dumper;
21	use Digest::MD5;	30	use Digest::MD5;
22	use Fcntl;	31	use Fcntl;
		32	use YAML ();
23	use IO::AIO 2.32 ();	33	use IO::AIO 2.51 ();
24	use YAML::Syck ();
25	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
26		37
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
		39	#
		40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		43
		44	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
28		45
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	46	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		47
36	our %COMMAND = ();	48	our %COMMAND = ();
37	our %COMMAND_TIME = ();	49	our %COMMAND_TIME = ();
38		50
39	our @EXTS = (); # list of extension package names	51	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	52	our %EXTCMD = ();
		53	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
43		56
		57	our $RELOAD; # number of reloads so far
44	our @EVENT;	58	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		59
47	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71	our %RESOURCE;
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	74	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	75	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	77	our $NEXT_TICK;
52	our $NOW;	78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $BDB_DEADLOCK_WATCHER;
		82	our $BDB_CHECKPOINT_WATCHER;
		83	our $BDB_TRICKLE_WATCHER;
		84	our $DB_ENV;
53		85
54	our %CFG;	86	our %CFG;
55		87
56	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	89	our $RUNTIME;
		90	our $NOW;
58		91
59	our %PLAYER; # all users	92	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	93	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	94	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		95
67	# used to convert map paths into valid unix filenames by replacing / by ∕	96	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
		102
70	binmode STDOUT;	103	binmode STDOUT;
71	binmode STDERR;	104	binmode STDERR;
72		105
73	# read virtual server time, if available	106	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
78	}	111	}
79		112
80	mkdir cf::localdir;	113	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		115
86	our $EMERGENCY_POSITION;	116	our $EMERGENCY_POSITION;
87		117
88	sub cf::map::normalise;	118	sub cf::map::normalise;
89		119
…		…
100	=item $cf::RUNTIME	130	=item $cf::RUNTIME
101		131
102	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
103	every server tick.	133	every server tick.
104		134
105	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
106		138
107	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
108	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
109		143
110	=item $cf::NOW	144	=item $cf::NOW
111		145
112	The time of the last (current) server tick.	146	The time of the last (current) server tick.
113		147
114	=item $cf::TICK	148	=item $cf::TICK
115		149
116	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
117		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
		161
118	=item %cf::CFG	162	=item %cf::CFG
119		163
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
121	from wherever your confdir points to.	165	from wherever your confdir points to.
122		166
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	167	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		168
125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	170	returns directly I<after> the tick processing (and consequently, can only wake one process
127	processing has been done. Call C<< ->wait >> on them to maximise the	171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
128	window of cpu time available, or simply to synchronise to the server tick.	172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
129		178
130	=back	179	=back
131		180
132	=cut	181	=cut
133		182
134	BEGIN {	183	BEGIN {
135	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	185	my $msg = join "", @_;
137	utf8::encode $msg;
138		186
139	$msg .= "\n"	187	$msg .= "\n"
140	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
141		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
142	LOG llevError, $msg;	192	LOG llevError, $msg;
143	};	193	};
144	}	194	}
		195
		196	$Coro::State::DIEHOOK = sub {
		197	return unless $^S eq 0; # "eq", not "=="
		198
		199	if ($Coro::current == $Coro::main) {#d#
		200	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		201	return;#d#
		202	}#d#
		203
		204	# kill coroutine otherwise
		205	warn Carp::longmess $_[0];
		206	Coro::terminate
		207	};
		208
		209	$SIG{__DIE__} = sub { }; #d#?
145		210
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	211	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	212	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	213	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	214	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	215	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		216	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
151	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	217	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
152		218
153	# we bless all objects into (empty) derived classes to force a method lookup	219	# we bless all objects into (empty) derived classes to force a method lookup
154	# within the Safe compartment.	220	# within the Safe compartment.
155	for my $pkg (qw(	221	for my $pkg (qw(
156	cf::global cf::attachable	222	cf::global cf::attachable
…		…
161	)) {	227	)) {
162	no strict 'refs';	228	no strict 'refs';
163	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	229	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
164	}	230	}
165		231
166	$Event::DIED = sub {	232	$EV::DIED = sub {
167	warn "error in event callback: @_";	233	warn "error in event callback: @_";
168	};	234	};
		235
		236	#############################################################################
169		237
170	=head2 UTILITY FUNCTIONS	238	=head2 UTILITY FUNCTIONS
171		239
172	=over 4	240	=over 4
173		241
…		…
192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	260	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
193	$d	261	$d
194	} || "[unable to dump $_[0]: '$@']";	262	} || "[unable to dump $_[0]: '$@']";
195	}	263	}
196		264
197	use JSON::Syck (); # TODO# replace by JSON::PC once working
198
199	=item $ref = cf::from_json $json	265	=item $ref = cf::decode_json $json
200		266
201	Converts a JSON string into the corresponding perl data structure.	267	Converts a JSON string into the corresponding perl data structure.
202		268
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	269	=item $json = cf::encode_json $ref
211		270
212	Converts a perl data structure into its JSON representation.	271	Converts a perl data structure into its JSON representation.
213		272
214	=cut	273	=cut
215		274
216	sub to_json($) {	275	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	276
218	JSON::Syck::Dump $_[0]	277	sub encode_json($) { $json_coder->encode ($_[0]) }
219	}	278	sub decode_json($) { $json_coder->decode ($_[0]) }
220		279
221	=item cf::lock_wait $string	280	=item cf::lock_wait $string
222		281
223	Wait until the given lock is available. See cf::lock_acquire.	282	Wait until the given lock is available. See cf::lock_acquire.
224		283
…		…
227	Wait until the given lock is available and then acquires it and returns	286	Wait until the given lock is available and then acquires it and returns
228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	287	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
229	for example when the coroutine gets canceled), the lock is automatically	288	for example when the coroutine gets canceled), the lock is automatically
230	returned.	289	returned.
231		290
		291	Locks are *not* recursive, locking from the same coro twice results in a
		292	deadlocked coro.
		293
232	Lock names should begin with a unique identifier (for example, cf::map::find	294	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	295	uses map_find and cf::map::load uses map_load).
234		296
		297	=item $locked = cf::lock_active $string
		298
		299	Return true if the lock is currently active, i.e. somebody has locked it.
		300
235	=cut	301	=cut
236		302
237	our %LOCK;	303	our %LOCK;
		304	our %LOCKER;#d#
238		305
239	sub lock_wait($) {	306	sub lock_wait($) {
240	my ($key) = @_;	307	my ($key) = @_;
		308
		309	if ($LOCKER{$key} == $Coro::current) {#d#
		310	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		311	return;#d#
		312	}#d#
241		313
242	# wait for lock, if any	314	# wait for lock, if any
243	while ($LOCK{$key}) {	315	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;	316	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;	317	Coro::schedule;
…		…
251		323
252	# wait, to be sure we are not locked	324	# wait, to be sure we are not locked
253	lock_wait $key;	325	lock_wait $key;
254		326
255	$LOCK{$key} = [];	327	$LOCK{$key} = [];
		328	$LOCKER{$key} = $Coro::current;#d#
256		329
257	Coro::guard {	330	Coro::guard {
		331	delete $LOCKER{$key};#d#
258	# wake up all waiters, to be on the safe side	332	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	333	$_->ready for @{ delete $LOCK{$key} };
260	}	334	}
261	}	335	}
262		336
		337	sub lock_active($) {
		338	my ($key) = @_;
		339
		340	! ! $LOCK{$key}
		341	}
		342
263	sub freeze_mainloop {	343	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	344	return unless $TICK_WATCHER->is_active;
265		345
266	my $guard = Coro::guard {	346	my $guard = Coro::guard {
267	$TICK_WATCHER->start;	347	$TICK_WATCHER->start;
268	$WRITE_RUNTIME_WATCHER->start;
269	};	348	};
270	$WRITE_RUNTIME_WATCHER->stop;
271	$TICK_WATCHER->stop;	349	$TICK_WATCHER->stop;
272	$guard	350	$guard
		351	}
		352
		353	=item cf::periodic $interval, $cb
		354
		355	Like EV::periodic, but randomly selects a starting point so that the actions
		356	get spread over timer.
		357
		358	=cut
		359
		360	sub periodic($$) {
		361	my ($interval, $cb) = @_;
		362
		363	my $start = rand List::Util::min 180, $interval;
		364
		365	EV::periodic $start, $interval, 0, $cb
		366	}
		367
		368	=item cf::get_slot $time[, $priority[, $name]]
		369
		370	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		371	This call blocks and returns only when you have at least C<$time> seconds
		372	of cpu time till the next tick. The slot is only valid till the next cede.
		373
		374	The optional C<$name> can be used to identify the job to run. It might be
		375	used for statistical purposes and should identify the same time-class.
		376
		377	Useful for short background jobs.
		378
		379	=cut
		380
		381	our @SLOT_QUEUE;
		382	our $SLOT_QUEUE;
		383
		384	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		385	$SLOT_QUEUE = Coro::async {
		386	$Coro::current->desc ("timeslot manager");
		387
		388	my $signal = new Coro::Signal;
		389
		390	while () {
		391	next_job:
		392	my $avail = cf::till_tick;
		393	if ($avail > 0.01) {
		394	for (0 .. $#SLOT_QUEUE) {
		395	if ($SLOT_QUEUE[$_][0] < $avail) {
		396	my $job = splice @SLOT_QUEUE, $_, 1, ();
		397	$job->[2]->send;
		398	Coro::cede;
		399	goto next_job;
		400	}
		401	}
		402	}
		403
		404	if (@SLOT_QUEUE) {
		405	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		406	push @cf::WAIT_FOR_TICK, $signal;
		407	$signal->wait;
		408	} else {
		409	Coro::schedule;
		410	}
		411	}
		412	};
		413
		414	sub get_slot($;$$) {
		415	my ($time, $pri, $name) = @_;
		416
		417	$time = $TICK * .6 if $time > $TICK * .6;
		418	my $sig = new Coro::Signal;
		419
		420	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		421	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		422	$SLOT_QUEUE->ready;
		423	$sig->wait;
273	}	424	}
274		425
275	=item cf::async { BLOCK }	426	=item cf::async { BLOCK }
276		427
277	Currently the same as Coro::async_pool, meaning you cannot use	428	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		433
283	BEGIN { *async = \&Coro::async_pool }	434	BEGIN { *async = \&Coro::async_pool }
284		435
285	=item cf::sync_job { BLOCK }	436	=item cf::sync_job { BLOCK }
286		437
287	The design of crossfire+ requires that the main coro ($Coro::main) is	438	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	439	is always able to handle events or runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	440	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		441	acceptable.
290		442
291	If it must be done, put the blocking parts into C<sync_job>. This will run	443	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	444	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	445	server will be frozen during this time, so the block should either finish
294	fast or be very important.	446	fast or be very important.
…		…
297		449
298	sub sync_job(&) {	450	sub sync_job(&) {
299	my ($job) = @_;	451	my ($job) = @_;
300		452
301	if ($Coro::current == $Coro::main) {	453	if ($Coro::current == $Coro::main) {
		454	my $time = EV::time;
		455
302	# this is the main coro, too bad, we have to block	456	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	457	# till the operation succeeds, freezing the server :/
304		458
		459	LOG llevError, Carp::longmess "sync job";#d#
		460
305	# TODO: use suspend/resume instead	461	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	462	# (but this is cancel-safe)
307	my $freeze_guard = freeze_mainloop;	463	my $freeze_guard = freeze_mainloop;
308		464
309	my $busy = 1;	465	my $busy = 1;
310	my @res;	466	my @res;
311		467
312	(async {	468	(async {
		469	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	470	@res = eval { $job->() };
314	warn $@ if $@;	471	warn $@ if $@;
315	undef $busy;	472	undef $busy;
316	})->prio (Coro::PRIO_MAX);	473	})->prio (Coro::PRIO_MAX);
317		474
318	while ($busy) {	475	while ($busy) {
319	Coro::cede or Event::one_event;	476	if (Coro::nready) {
		477	Coro::cede_notself;
		478	} else {
		479	EV::loop EV::LOOP_ONESHOT;
320	}	480	}
		481	}
		482
		483	$time = EV::time - $time;
		484
		485	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		486	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		487
		488	$tick_start += $time; # do not account sync jobs to server load
321		489
322	wantarray ? @res : $res[0]	490	wantarray ? @res : $res[0]
323	} else {	491	} else {
324	# we are in another coroutine, how wonderful, everything just works	492	# we are in another coroutine, how wonderful, everything just works
325		493
…		…
345	$EXT_CORO{$coro+0} = $coro;	513	$EXT_CORO{$coro+0} = $coro;
346		514
347	$coro	515	$coro
348	}	516	}
349		517
350	sub write_runtime {	518	=item fork_call { }, $args
351	my $runtime = cf::localdir . "/runtime";
352		519
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	520	Executes the given code block with the given arguments in a seperate
354	or return;	521	process, returning the results. Everything must be serialisable with
		522	Coro::Storable. May, of course, block. Note that the executed sub may
		523	never block itself or use any form of event handling.
355		524
356	my $value = $cf::RUNTIME + 90 + 10;	525	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		526
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	527	sub fork_call(&@) {
361	and return;	528	my ($cb, @args) = @_;
362		529
363	aio_fsync $fh	530	# we seemingly have to make a local copy of the whole thing,
364	and return;	531	# otherwise perl prematurely frees the stuff :/
		532	# TODO: investigate and fix (likely this will be rather laborious)
365		533
366	close $fh	534	my @res = Coro::Util::fork_eval {
367	or return;	535	reset_signals;
		536	&$cb
		537	}, @args;
368		538
369	aio_rename "$runtime~", $runtime	539	wantarray ? @res : $res[-1]
370	and return;	540	}
371		541
		542	=item $value = cf::db_get $family => $key
		543
		544	Returns a single value from the environment database.
		545
		546	=item cf::db_put $family => $key => $value
		547
		548	Stores the given C<$value> in the family. It can currently store binary
		549	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		550
		551	=item $db = cf::db_table "name"
		552
		553	Create and/or open a new database table. The string must not be "db" and must be unique
		554	within each server.
		555
		556	=cut
		557
		558	sub db_table($) {
		559	my ($name) = @_;
		560	my $db = BDB::db_create $DB_ENV;
		561
		562	eval {
		563	$db->set_flags (BDB::CHKSUM);
		564
		565	utf8::encode $name;
		566	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		567	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		568	cf::cleanup "db_open(db): $!" if $!;
		569	};
		570	cf::cleanup "db_open(db): $@" if $@;
		571
		572	$db
		573	}
		574
		575	our $DB;
		576
		577	sub db_init {
		578	cf::sync_job {
		579	$DB ||= db_table "db";
		580	};
		581	}
		582
		583	sub db_get($$) {
		584	my $key = "$_[0]/$_[1]";
		585
		586	cf::sync_job {
		587	BDB::db_get $DB, undef, $key, my $data;
		588
		589	$! ? ()
		590	: $data
372	1	591	}
		592	}
		593
		594	sub db_put($$$) {
		595	BDB::dbreq_pri 4;
		596	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		597	}
		598
		599	=item cf::cache $id => [$paths...], $processversion => $process
		600
		601	Generic caching function that returns the value of the resource $id,
		602	caching and regenerating as required.
		603
		604	This function can block.
		605
		606	=cut
		607
		608	sub cache {
		609	my ($id, $src, $processversion, $process) = @_;
		610
		611	my $meta =
		612	join "\x00",
		613	$processversion,
		614	map {
		615	aio_stat $_
		616	and Carp::croak "$_: $!";
		617
		618	($_, (stat _)[7,9])
		619	} @$src;
		620
		621	my $dbmeta = db_get cache => "$id/meta";
		622	if ($dbmeta ne $meta) {
		623	# changed, we may need to process
		624
		625	my @data;
		626	my $md5;
		627
		628	for (0 .. $#$src) {
		629	0 <= aio_load $src->[$_], $data[$_]
		630	or Carp::croak "$src->[$_]: $!";
		631	}
		632
		633	# if processing is expensive, check
		634	# checksum first
		635	if (1) {
		636	$md5 =
		637	join "\x00",
		638	$processversion,
		639	map {
		640	cf::cede_to_tick;
		641	($src->[$_], Digest::MD5::md5_hex $data[$_])
		642	} 0.. $#$src;
		643
		644
		645	my $dbmd5 = db_get cache => "$id/md5";
		646	if ($dbmd5 eq $md5) {
		647	db_put cache => "$id/meta", $meta;
		648
		649	return db_get cache => "$id/data";
		650	}
		651	}
		652
		653	my $t1 = Time::HiRes::time;
		654	my $data = $process->(\@data);
		655	my $t2 = Time::HiRes::time;
		656
		657	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		658
		659	db_put cache => "$id/data", $data;
		660	db_put cache => "$id/md5" , $md5;
		661	db_put cache => "$id/meta", $meta;
		662
		663	return $data;
		664	}
		665
		666	db_get cache => "$id/data"
		667	}
		668
		669	=item cf::datalog type => key => value, ...
		670
		671	Log a datalog packet of the given type with the given key-value pairs.
		672
		673	=cut
		674
		675	sub datalog($@) {
		676	my ($type, %kv) = @_;
		677	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373	}	678	}
374		679
375	=back	680	=back
376		681
377	=cut	682	=cut
…		…
384	attach callbacks/event handlers (a collection of which is called an "attachment")	689	attach callbacks/event handlers (a collection of which is called an "attachment")
385	to it. All such attachable objects support the following methods.	690	to it. All such attachable objects support the following methods.
386		691
387	In the following description, CLASS can be any of C<global>, C<object>	692	In the following description, CLASS can be any of C<global>, C<object>
388	C<player>, C<client> or C<map> (i.e. the attachable objects in	693	C<player>, C<client> or C<map> (i.e. the attachable objects in
389	crossfire+).	694	Deliantra).
390		695
391	=over 4	696	=over 4
392		697
393	=item $attachable->attach ($attachment, key => $value...)	698	=item $attachable->attach ($attachment, key => $value...)
394		699
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	862	$registry = $CB_TYPE[$object_type] ||= [];
558		863
559	} elsif ($type eq "subtype") {	864	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	865	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	866	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	867	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		868
564	} elsif ($type eq "package") {	869	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	870	my $pkg = shift @arg;
566		871
567	while (my ($name, $id) = each %cb_id) {	872	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	901	_attach $registry, $klass, @attach;
597	}	902	}
598		903
599	$obj->{$name} = \%arg;	904	$obj->{$name} = \%arg;
600	} else {	905	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	906	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	907	}
603		908
604	$obj->{_attachment}{$name} = undef;	909	$obj->{_attachment}{$name} = undef;
605	}	910	}
606		911
…		…
608	if (ref $_[0]) {	913	if (ref $_[0]) {
609	_object_attach @_;	914	_object_attach @_;
610	} else {	915	} else {
611	_attach shift->_attach_registry, @_;	916	_attach shift->_attach_registry, @_;
612	}	917	}
		918	_recalc_want;
613	};	919	};
614		920
615	# all those should be optimised	921	# all those should be optimised
616	sub cf::attachable::detach {	922	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	923	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	926	delete $obj->{_attachment}{$name};
621	reattach ($obj);	927	reattach ($obj);
622	} else {	928	} else {
623	Carp::croak "cannot, currently, detach class attachments";	929	Carp::croak "cannot, currently, detach class attachments";
624	}	930	}
		931	_recalc_want;
625	};	932	};
626		933
627	sub cf::attachable::attached {	934	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	935	my ($obj, $name) = @_;
629		936
…		…
644	";	951	";
645	die if $@;	952	die if $@;
646	}	953	}
647		954
648	our $override;	955	our $override;
649	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	956	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
650		957
651	sub override {	958	sub override {
652	$override = 1;	959	$override = 1;
653	@invoke_results = ();	960	@INVOKE_RESULTS = (@_);
654	}	961	}
655		962
656	sub do_invoke {	963	sub do_invoke {
657	my $event = shift;	964	my $event = shift;
658	my $callbacks = shift;	965	my $callbacks = shift;
659		966
660	@invoke_results = ();	967	@INVOKE_RESULTS = ();
661		968
662	local $override;	969	local $override;
663		970
664	for (@$callbacks) {	971	for (@$callbacks) {
665	eval { &{$_->[1]} };	972	eval { &{$_->[1]} };
…		…
674	}	981	}
675		982
676	0	983	0
677	}	984	}
678		985
679	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	986	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
680		987
681	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	988	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
682		989
683	Generate an object-specific event with the given arguments.	990	Generate an object-specific event with the given arguments.
684		991
685	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	992	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
686	removed in future versions), and there is no public API to access override	993	removed in future versions), and there is no public API to access override
687	results (if you must, access C<@cf::invoke_results> directly).	994	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
688		995
689	=back	996	=back
690		997
691	=cut	998	=cut
692		999
693	#############################################################################	1000	#############################################################################
694	# object support	1001	# object support
		1002
		1003	sub _object_equal($$);
		1004	sub _object_equal($$) {
		1005	my ($a, $b) = @_;
		1006
		1007	return 0 unless (ref $a) eq (ref $b);
		1008
		1009	if ("HASH" eq ref $a) {
		1010	my @ka = keys %$a;
		1011	my @kb = keys %$b;
		1012
		1013	return 0 if @ka != @kb;
		1014
		1015	for (0 .. $#ka) {
		1016	return 0 unless $ka[$_] eq $kb[$_];
		1017	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1018	}
		1019
		1020	} elsif ("ARRAY" eq ref $a) {
		1021
		1022	return 0 if @$a != @$b;
		1023
		1024	for (0 .. $#$a) {
		1025	return 0 unless _object_equal $a->[$_], $b->[$_];
		1026	}
		1027
		1028	} elsif ($a ne $b) {
		1029	return 0;
		1030	}
		1031
		1032	1
		1033	}
		1034
		1035	our $SLOW_MERGES;#d#
		1036	sub _can_merge {
		1037	my ($ob1, $ob2) = @_;
		1038
		1039	++$SLOW_MERGES;#d#
		1040
		1041	# we do the slow way here
		1042	return _object_equal $ob1, $ob2
		1043	}
695		1044
696	sub reattach {	1045	sub reattach {
697	# basically do the same as instantiate, without calling instantiate	1046	# basically do the same as instantiate, without calling instantiate
698	my ($obj) = @_;	1047	my ($obj) = @_;
699		1048
…		…
720	cf::attachable->attach (	1069	cf::attachable->attach (
721	prio => -1000000,	1070	prio => -1000000,
722	on_instantiate => sub {	1071	on_instantiate => sub {
723	my ($obj, $data) = @_;	1072	my ($obj, $data) = @_;
724		1073
725	$data = from_json $data;	1074	$data = decode_json $data;
726		1075
727	for (@$data) {	1076	for (@$data) {
728	my ($name, $args) = @$_;	1077	my ($name, $args) = @$_;
729		1078
730	$obj->attach ($name, %{$args || {} });	1079	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1095	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1096	my ($filename, $rdata, $objs) = @_;
748		1097
749	sync_job {	1098	sync_job {
750	if (length $$rdata) {	1099	if (length $$rdata) {
		1100	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1101	warn sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1102	$decname, length $$rdata, scalar @$objs;
753		1103
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1104	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1105	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1106	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	1107	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	1108	close $fh;
759		1109
760	if (@$objs) {	1110	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1111	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1112	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1113	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1114	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	1115	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	1116	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1117	aio_rename "$filename.pst~", "$filename.pst";
768	}	1118	}
769	} else {	1119	} else {
770	aio_unlink "$filename.pst";	1120	aio_unlink "$filename.pst";
…		…
776	}	1126	}
777	} else {	1127	} else {
778	aio_unlink $filename;	1128	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1129	aio_unlink "$filename.pst";
780	}	1130	}
781	}	1131	};
782	}	1132	}
783		1133
784	sub object_freezer_as_string {	1134	sub object_freezer_as_string {
785	my ($rdata, $objs) = @_;	1135	my ($rdata, $objs) = @_;
786		1136
…		…
798	or return;	1148	or return;
799		1149
800	unless (aio_stat "$filename.pst") {	1150	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1151	(aio_load "$filename.pst", $av) >= 0
802	or return;	1152	or return;
		1153
803	$av = eval { (Storable::thaw $av)->{objs} };	1154	my $st = eval { Coro::Storable::thaw $av };
		1155	$av = $st->{objs};
804	}	1156	}
805		1157
		1158	utf8::decode (my $decname = $filename);
806	warn sprintf "loading %s (%d)\n",	1159	warn sprintf "loading %s (%d,%d)\n",
807	$filename, length $data, scalar @{$av || []};#d#	1160	$decname, length $data, scalar @{$av || []};
		1161
808	return ($data, $av);	1162	($data, $av)
809	}	1163	}
		1164
		1165	=head2 COMMAND CALLBACKS
		1166
		1167	=over 4
		1168
		1169	=cut
810		1170
811	#############################################################################	1171	#############################################################################
812	# command handling &c	1172	# command handling &c
813		1173
814	=item cf::register_command $name => \&callback($ob,$args);	1174	=item cf::register_command $name => \&callback($ob,$args);
…		…
827	push @{ $COMMAND{$name} }, [$caller, $cb];	1187	push @{ $COMMAND{$name} }, [$caller, $cb];
828	}	1188	}
829		1189
830	=item cf::register_extcmd $name => \&callback($pl,$packet);	1190	=item cf::register_extcmd $name => \&callback($pl,$packet);
831		1191
832	Register a callbackf ro execution when the client sends an extcmd packet.	1192	Register a callback for execution when the client sends an (synchronous)
		1193	extcmd packet. Ext commands will be processed in the order they are
		1194	received by the server, like other user commands. The first argument is
		1195	the logged-in player. Ext commands can only be processed after a player
		1196	has logged in successfully.
833		1197
834	If the callback returns something, it is sent back as if reply was being	1198	If the callback returns something, it is sent back as if reply was being
835	called.	1199	called.
836		1200
		1201	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1202
		1203	Register a callback for execution when the client sends an (asynchronous)
		1204	exticmd packet. Exti commands are processed by the server as soon as they
		1205	are received, i.e. out of order w.r.t. other commands. The first argument
		1206	is a client socket. Exti commands can be received anytime, even before
		1207	log-in.
		1208
		1209	If the callback returns something, it is sent back as if reply was being
		1210	called.
		1211
837	=cut	1212	=cut
838		1213
839	sub register_extcmd {	1214	sub register_extcmd {
840	my ($name, $cb) = @_;	1215	my ($name, $cb) = @_;
841		1216
842	$EXTCMD{$name} = $cb;	1217	$EXTCMD{$name} = $cb;
		1218	}
		1219
		1220	sub register_exticmd {
		1221	my ($name, $cb) = @_;
		1222
		1223	$EXTICMD{$name} = $cb;
843	}	1224	}
844		1225
845	cf::player->attach (	1226	cf::player->attach (
846	on_command => sub {	1227	on_command => sub {
847	my ($pl, $name, $params) = @_;	1228	my ($pl, $name, $params) = @_;
…		…
856	cf::override;	1237	cf::override;
857	},	1238	},
858	on_extcmd => sub {	1239	on_extcmd => sub {
859	my ($pl, $buf) = @_;	1240	my ($pl, $buf) = @_;
860		1241
861	my $msg = eval { from_json $buf };	1242	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
862		1243
863	if (ref $msg) {	1244	if (ref $msg) {
		1245	my ($type, $reply, @payload) =
		1246	"ARRAY" eq ref $msg
		1247	? @$msg
		1248	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1249
		1250	my @reply;
		1251
864	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1252	if (my $cb = $EXTCMD{$type}) {
865	if (my %reply = $cb->($pl, $msg)) {	1253	@reply = $cb->($pl, @payload);
866	$pl->ext_reply ($msg->{msgid}, %reply);
867	}
868	}	1254	}
		1255
		1256	$pl->ext_reply ($reply, @reply)
		1257	if $reply;
		1258
869	} else {	1259	} else {
870	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1260	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
871	}	1261	}
872		1262
873	cf::override;	1263	cf::override;
874	},	1264	},
875	);	1265	);
876		1266
877	sub load_extension {
878	my ($path) = @_;
879
880	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
881	my $base = $1;
882	my $pkg = $1;
883	$pkg =~ s/[^[:word:]]/_/g;
884	$pkg = "ext::$pkg";
885
886	warn "... loading '$path' into '$pkg'\n";
887
888	open my $fh, "<:utf8", $path
889	or die "$path: $!";
890
891	my $source =
892	"package $pkg; use strict; use utf8;\n"
893	. "#line 1 \"$path\"\n{\n"
894	. (do { local $/; <$fh> })
895	. "\n};\n1";
896
897	unless (eval $source) {
898	my $msg = $@ ? "$path: $@\n"
899	: "extension disabled.\n";
900	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
901	warn $@;
902	warn "mandatory extension failed to load, exiting.\n";
903	exit 1;
904	}
905	die $@;
906	}
907
908	push @EXTS, $pkg;
909	}
910
911	sub load_extensions {	1267	sub load_extensions {
		1268	cf::sync_job {
		1269	my %todo;
		1270
912	for my $ext (<$LIBDIR/*.ext>) {	1271	for my $path (<$LIBDIR/*.ext>) {
913	next unless -r $ext;	1272	next unless -r $path;
914	eval {	1273
915	load_extension $ext;	1274	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1275	my $base = $1;
		1276	my $pkg = $1;
		1277	$pkg =~ s/[^[:word:]]/_/g;
		1278	$pkg = "ext::$pkg";
		1279
		1280	open my $fh, "<:utf8", $path
		1281	or die "$path: $!";
		1282
		1283	my $source = do { local $/; <$fh> };
		1284
		1285	my %ext = (
		1286	path => $path,
		1287	base => $base,
		1288	pkg => $pkg,
		1289	);
		1290
		1291	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1292	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1293
		1294	$ext{source} =
		1295	"package $pkg; use strict; use utf8;\n"
		1296	. "#line 1 \"$path\"\n{\n"
		1297	. $source
		1298	. "\n};\n1";
		1299
		1300	$todo{$base} = \%ext;
		1301	}
		1302
		1303	my %done;
		1304	while (%todo) {
		1305	my $progress;
		1306
		1307	while (my ($k, $v) = each %todo) {
		1308	for (split /,\s*/, $v->{meta}{depends}) {
		1309	goto skip
		1310	unless exists $done{$_};
		1311	}
		1312
		1313	warn "... loading '$k' into '$v->{pkg}'\n";
		1314
		1315	unless (eval $v->{source}) {
		1316	my $msg = $@ ? "$v->{path}: $@\n"
		1317	: "$v->{base}: extension inactive.\n";
		1318
		1319	if (exists $v->{meta}{mandatory}) {
		1320	warn $msg;
		1321	cf::cleanup "mandatory extension failed to load, exiting.";
		1322	}
		1323
		1324	warn $msg;
		1325	}
		1326
		1327	$done{$k} = delete $todo{$k};
		1328	push @EXTS, $v->{pkg};
		1329	$progress = 1;
916	1	1330	}
917	} or warn "$ext not loaded: $@";	1331
		1332	skip:
		1333	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1334	unless $progress;
		1335	}
918	}	1336	};
919	}	1337	}
920		1338
921	#############################################################################	1339	#############################################################################
922		1340
		1341	=back
		1342
923	=head2 CORE EXTENSIONS	1343	=head2 CORE EXTENSIONS
924		1344
925	Functions and methods that extend core crossfire objects.	1345	Functions and methods that extend core crossfire objects.
926		1346
927	=cut	1347	=cut
…		…
932		1352
933	=head3 cf::player	1353	=head3 cf::player
934		1354
935	=over 4	1355	=over 4
936		1356
		1357	=item cf::player::num_playing
		1358
		1359	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1360
		1361	=cut
		1362
		1363	sub num_playing {
		1364	scalar grep
		1365	$_->ob->map
		1366	&& !$_->hidden
		1367	&& !$_->ob->flag (cf::FLAG_WIZ),
		1368	cf::player::list
		1369	}
		1370
937	=item cf::player::find $login	1371	=item cf::player::find $login
938		1372
939	Returns the given player object, loading it if necessary (might block).	1373	Returns the given player object, loading it if necessary (might block).
940		1374
941	=cut	1375	=cut
942		1376
943	sub playerdir($) {	1377	sub playerdir($) {
944	cf::localdir	1378	"$PLAYERDIR/"
945	. "/"
946	. cf::playerdir
947	. "/"
948	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1379	. (ref $_[0] ? $_[0]->ob->name : $_[0])
949	}	1380	}
950		1381
951	sub path($) {	1382	sub path($) {
952	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1383	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
953		1384
954	(playerdir $login) . "/$login.pl"	1385	(playerdir $login) . "/playerdata"
955	}	1386	}
956		1387
957	sub find_active($) {	1388	sub find_active($) {
958	$cf::PLAYER{$_[0]}	1389	$cf::PLAYER{$_[0]}
959	and $cf::PLAYER{$_[0]}->active	1390	and $cf::PLAYER{$_[0]}->active
…		…
972	my $login = $_[0];	1403	my $login = $_[0];
973		1404
974	my $guard = cf::lock_acquire "user_find:$login";	1405	my $guard = cf::lock_acquire "user_find:$login";
975		1406
976	$cf::PLAYER{$_[0]} || do {	1407	$cf::PLAYER{$_[0]} || do {
977	my $pl = load_pl path $login	1408	# rename old playerfiles to new ones
		1409	#TODO: remove when no longer required
		1410	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1411	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1412	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1413	aio_unlink +(playerdir $login) . "/$login.pl";
		1414
		1415	my $f = new_from_file cf::object::thawer path $login
978	or return;	1416	or return;
		1417
		1418	my $pl = cf::player::load_pl $f
		1419	or return;
		1420	local $cf::PLAYER_LOADING{$login} = $pl;
		1421	$f->resolve_delayed_derefs;
979	$cf::PLAYER{$login} = $pl	1422	$cf::PLAYER{$login} = $pl
980	}	1423	}
981	}	1424	}
982	}	1425	}
983		1426
…		…
993		1436
994	aio_mkdir playerdir $pl, 0770;	1437	aio_mkdir playerdir $pl, 0770;
995	$pl->{last_save} = $cf::RUNTIME;	1438	$pl->{last_save} = $cf::RUNTIME;
996		1439
997	$pl->save_pl ($path);	1440	$pl->save_pl ($path);
998	Coro::cede;	1441	cf::cede_to_tick;
999	}	1442	}
1000		1443
1001	sub new($) {	1444	sub new($) {
1002	my ($login) = @_;	1445	my ($login) = @_;
1003		1446
…		…
1009	$cf::PLAYER{$login} = $self;	1452	$cf::PLAYER{$login} = $self;
1010		1453
1011	$self	1454	$self
1012	}	1455	}
1013		1456
		1457	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1458
		1459	=cut
		1460
		1461	sub send_msg {
		1462	my $ns = shift->ns
		1463	or return;
		1464	$ns->send_msg (@_);
		1465	}
		1466
1014	=item $pl->quit_character	1467	=item $pl->quit_character
1015		1468
1016	Nukes the player without looking back. If logged in, the connection will	1469	Nukes the player without looking back. If logged in, the connection will
1017	be destroyed. May block for a long time.	1470	be destroyed. May block for a long time.
1018		1471
1019	=cut	1472	=cut
1020		1473
1021	sub quit_character {	1474	sub quit_character {
1022	my ($pl) = @_;	1475	my ($pl) = @_;
		1476
		1477	my $name = $pl->ob->name;
1023		1478
1024	$pl->{deny_save} = 1;	1479	$pl->{deny_save} = 1;
1025	$pl->password ("*"); # this should lock out the player until we nuked the dir	1480	$pl->password ("*"); # this should lock out the player until we nuked the dir
1026		1481
1027	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1482	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1032	my $path = playerdir $pl;	1487	my $path = playerdir $pl;
1033	my $temp = "$path~$cf::RUNTIME~deleting~";	1488	my $temp = "$path~$cf::RUNTIME~deleting~";
1034	aio_rename $path, $temp;	1489	aio_rename $path, $temp;
1035	delete $cf::PLAYER{$pl->ob->name};	1490	delete $cf::PLAYER{$pl->ob->name};
1036	$pl->destroy;	1491	$pl->destroy;
		1492
		1493	my $prefix = qr<^~\Q$name\E/>;
		1494
		1495	# nuke player maps
		1496	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1497
1037	IO::AIO::aio_rmtree $temp;	1498	IO::AIO::aio_rmtree $temp;
		1499	}
		1500
		1501	=item $pl->kick
		1502
		1503	Kicks a player out of the game. This destroys the connection.
		1504
		1505	=cut
		1506
		1507	sub kick {
		1508	my ($pl, $kicker) = @_;
		1509
		1510	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1511	$pl->killer ("kicked");
		1512	$pl->ns->destroy;
1038	}	1513	}
1039		1514
1040	=item cf::player::list_logins	1515	=item cf::player::list_logins
1041		1516
1042	Returns am arrayref of all valid playernames in the system, can take a	1517	Returns am arrayref of all valid playernames in the system, can take a
1043	while and may block, so not sync_job-capable, ever.	1518	while and may block, so not sync_job-capable, ever.
1044		1519
1045	=cut	1520	=cut
1046		1521
1047	sub list_logins {	1522	sub list_logins {
1048	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1523	my $dirs = aio_readdir $PLAYERDIR
1049	or return [];	1524	or return [];
1050		1525
1051	my @logins;	1526	my @logins;
1052		1527
1053	for my $login (@$dirs) {	1528	for my $login (@$dirs) {
		1529	my $path = path $login;
		1530
		1531	# a .pst is a dead give-away for a valid player
		1532	unless (-e "$path.pst") {
1054	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1533	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1055	aio_read $fh, 0, 512, my $buf, 0 or next;	1534	aio_read $fh, 0, 512, my $buf, 0 or next;
1056	$buf !~ /^password -------------$/m or next; # official not-valid tag	1535	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1536	}
1057		1537
1058	utf8::decode $login;	1538	utf8::decode $login;
1059	push @logins, $login;	1539	push @logins, $login;
1060	}	1540	}
1061		1541
…		…
1069		1549
1070	=cut	1550	=cut
1071		1551
1072	sub maps($) {	1552	sub maps($) {
1073	my ($pl) = @_;	1553	my ($pl) = @_;
		1554
		1555	$pl = ref $pl ? $pl->ob->name : $pl;
1074		1556
1075	my $files = aio_readdir playerdir $pl	1557	my $files = aio_readdir playerdir $pl
1076	or return;	1558	or return;
1077		1559
1078	my @paths;	1560	my @paths;
…		…
1080	for (@$files) {	1562	for (@$files) {
1081	utf8::decode $_;	1563	utf8::decode $_;
1082	next if /\.(?:pl|pst)$/;	1564	next if /\.(?:pl|pst)$/;
1083	next unless /^$PATH_SEP/o;	1565	next unless /^$PATH_SEP/o;
1084		1566
1085	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1567	push @paths, cf::map::normalise "~$pl/$_";
1086	}	1568	}
1087		1569
1088	\@paths	1570	\@paths
1089	}	1571	}
1090		1572
		1573	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1574
		1575	Expand crossfire pod fragments into protocol xml.
		1576
		1577	=cut
		1578
		1579	use re 'eval';
		1580
		1581	my $group;
		1582	my $interior; $interior = qr{
		1583	# match a pod interior sequence sans C<< >>
		1584	(?:
		1585	\ (.*?)\ (?{ $group = $^N })
		1586	| < (??{$interior}) >
		1587	)
		1588	}x;
		1589
		1590	sub expand_cfpod {
		1591	my ($self, $pod) = @_;
		1592
		1593	my $xml;
		1594
		1595	while () {
		1596	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1597	$group = $1;
		1598
		1599	$group =~ s/&/&amp;/g;
		1600	$group =~ s/</&lt;/g;
		1601
		1602	$xml .= $group;
		1603	} elsif ($pod =~ m%\G
		1604	([BCGHITU])
		1605	<
		1606	(?:
		1607	([^<>]*) (?{ $group = $^N })
		1608	| < $interior >
		1609	)
		1610	>
		1611	%gcsx
		1612	) {
		1613	my ($code, $data) = ($1, $group);
		1614
		1615	if ($code eq "B") {
		1616	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1617	} elsif ($code eq "I") {
		1618	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1619	} elsif ($code eq "U") {
		1620	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1621	} elsif ($code eq "C") {
		1622	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1623	} elsif ($code eq "T") {
		1624	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1625	} elsif ($code eq "G") {
		1626	my ($male, $female) = split /\|/, $data;
		1627	$data = $self->gender ? $female : $male;
		1628	$xml .= expand_cfpod ($self, $data);
		1629	} elsif ($code eq "H") {
		1630	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1631	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1632	"")
		1633	[$self->{hintmode}];
		1634	} else {
		1635	$xml .= "error processing '$code($data)' directive";
		1636	}
		1637	} else {
		1638	if ($pod =~ /\G(.+)/) {
		1639	warn "parse error while expanding $pod (at $1)";
		1640	}
		1641	last;
		1642	}
		1643	}
		1644
		1645	for ($xml) {
		1646	# create single paragraphs (very hackish)
		1647	s/(?<=\S)\n(?=\w)/ /g;
		1648
		1649	# compress some whitespace
		1650	s/\s+\n/\n/g; # ws line-ends
		1651	s/\n\n+/\n/g; # double lines
		1652	s/^\n+//; # beginning lines
		1653	s/\n+$//; # ending lines
		1654	}
		1655
		1656	$xml
		1657	}
		1658
		1659	no re 'eval';
		1660
		1661	sub hintmode {
		1662	$_[0]{hintmode} = $_[1] if @_ > 1;
		1663	$_[0]{hintmode}
		1664	}
		1665
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1666	=item $player->ext_reply ($msgid, @msg)
1092		1667
1093	Sends an ext reply to the player.	1668	Sends an ext reply to the player.
1094		1669
1095	=cut	1670	=cut
1096		1671
1097	sub ext_reply($$$%) {	1672	sub ext_reply($$@) {
1098	my ($self, $id, %msg) = @_;	1673	my ($self, $id, @msg) = @_;
1099		1674
1100	$msg{msgid} = $id;	1675	$self->ns->ext_reply ($id, @msg)
1101
1102	$self->send ("ext " . cf::to_json \%msg);
1103	}	1676	}
1104		1677
1105	package cf;	1678	=item $player->ext_msg ($type, @msg)
		1679
		1680	Sends an ext event to the client.
		1681
		1682	=cut
		1683
		1684	sub ext_msg($$@) {
		1685	my ($self, $type, @msg) = @_;
		1686
		1687	$self->ns->ext_msg ($type, @msg);
		1688	}
		1689
		1690	=head3 cf::region
		1691
		1692	=over 4
		1693
		1694	=cut
		1695
		1696	package cf::region;
		1697
		1698	=item cf::region::find_by_path $path
		1699
		1700	Tries to decuce the likely region for a map knowing only its path.
		1701
		1702	=cut
		1703
		1704	sub find_by_path($) {
		1705	my ($path) = @_;
		1706
		1707	my ($match, $specificity);
		1708
		1709	for my $region (list) {
		1710	if ($region->{match} && $path =~ $region->{match}) {
		1711	($match, $specificity) = ($region, $region->specificity)
		1712	if $region->specificity > $specificity;
		1713	}
		1714	}
		1715
		1716	$match
		1717	}
1106		1718
1107	=back	1719	=back
1108
1109		1720
1110	=head3 cf::map	1721	=head3 cf::map
1111		1722
1112	=over 4	1723	=over 4
1113		1724
…		…
1168	my ($self, $merge) = @_;	1779	my ($self, $merge) = @_;
1169		1780
1170	# we have to keep some variables in memory intact	1781	# we have to keep some variables in memory intact
1171	local $self->{path};	1782	local $self->{path};
1172	local $self->{load_path};	1783	local $self->{load_path};
1173	local $self->{deny_save};
1174	local $self->{deny_reset};
1175		1784
1176	$self->SUPER::thawer_merge ($merge);	1785	$self->SUPER::thawer_merge ($merge);
1177	}	1786	}
1178		1787
1179	sub normalise {	1788	sub normalise {
…		…
1226	$self->init; # pass $1 etc.	1835	$self->init; # pass $1 etc.
1227	return $self;	1836	return $self;
1228	}	1837	}
1229	}	1838	}
1230		1839
1231	Carp::carp "unable to resolve path '$path' (base '$base').";	1840	Carp::cluck "unable to resolve path '$path' (base '$base').";
1232	()	1841	()
1233	}	1842	}
1234		1843
1235	sub init {	1844	sub init {
1236	my ($self) = @_;	1845	my ($self) = @_;
…		…
1251		1860
1252	# the original (read-only) location	1861	# the original (read-only) location
1253	sub load_path {	1862	sub load_path {
1254	my ($self) = @_;	1863	my ($self) = @_;
1255		1864
1256	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1865	"$MAPDIR/$self->{path}.map"
1257	}	1866	}
1258		1867
1259	# the temporary/swap location	1868	# the temporary/swap location
1260	sub save_path {	1869	sub save_path {
1261	my ($self) = @_;	1870	my ($self) = @_;
1262		1871
1263	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1872	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1264	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1873	"$TMPDIR/$path.map"
1265	}	1874	}
1266		1875
1267	# the unique path, undef == no special unique path	1876	# the unique path, undef == no special unique path
1268	sub uniq_path {	1877	sub uniq_path {
1269	my ($self) = @_;	1878	my ($self) = @_;
1270		1879
1271	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1880	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1272	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1881	"$UNIQUEDIR/$path"
1273	}	1882	}
1274		1883
1275	# and all this just because we cannot iterate over	1884	# and all this just because we cannot iterate over
1276	# all maps in C++...	1885	# all maps in C++...
1277	sub change_all_map_light {	1886	sub change_all_map_light {
…		…
1279		1888
1280	$_->change_map_light ($change)	1889	$_->change_map_light ($change)
1281	for grep $_->outdoor, values %cf::MAP;	1890	for grep $_->outdoor, values %cf::MAP;
1282	}	1891	}
1283		1892
		1893	sub decay_objects {
		1894	my ($self) = @_;
		1895
		1896	return if $self->{deny_reset};
		1897
		1898	$self->do_decay_objects;
		1899	}
		1900
1284	sub unlink_save {	1901	sub unlink_save {
1285	my ($self) = @_;	1902	my ($self) = @_;
1286		1903
1287	utf8::encode (my $save = $self->save_path);	1904	utf8::encode (my $save = $self->save_path);
1288	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1905	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1291		1908
1292	sub load_header_from($) {	1909	sub load_header_from($) {
1293	my ($self, $path) = @_;	1910	my ($self, $path) = @_;
1294		1911
1295	utf8::encode $path;	1912	utf8::encode $path;
1296	aio_open $path, O_RDONLY, 0	1913	my $f = new_from_file cf::object::thawer $path
1297	or return;	1914	or return;
1298		1915
1299	$self->_load_header ($path)	1916	$self->_load_header ($f)
1300	or return;	1917	or return;
		1918
		1919	local $MAP_LOADING{$self->{path}} = $self;
		1920	$f->resolve_delayed_derefs;
1301		1921
1302	$self->{load_path} = $path;	1922	$self->{load_path} = $path;
1303		1923
1304	1	1924	1
1305	}	1925	}
…		…
1344	$self->load_header_orig	1964	$self->load_header_orig
1345	or return;	1965	or return;
1346	$self->prepare_orig;	1966	$self->prepare_orig;
1347	}	1967	}
1348		1968
		1969	$self->{deny_reset} = 1
		1970	if $self->no_reset;
		1971
		1972	$self->default_region (cf::region::find_by_path $self->{path})
		1973	unless $self->default_region;
		1974
1349	1	1975	1
1350	}	1976	}
1351		1977
1352	sub find;	1978	sub find;
1353	sub find {	1979	sub find {
1354	my ($path, $origin) = @_;	1980	my ($path, $origin) = @_;
1355		1981
1356	$path = normalise $path, $origin && $origin->path;	1982	$path = normalise $path, $origin && $origin->path;
1357		1983
		1984	cf::lock_wait "map_data:$path";#d#remove
1358	cf::lock_wait "map_find:$path";	1985	cf::lock_wait "map_find:$path";
1359		1986
1360	$cf::MAP{$path} || do {	1987	$cf::MAP{$path} || do {
1361	my $guard = cf::lock_acquire "map_find:$path";	1988	my $guard1 = cf::lock_acquire "map_find:$path";
		1989	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1990
1362	my $map = new_from_path cf::map $path	1991	my $map = new_from_path cf::map $path
1363	or return;	1992	or return;
1364		1993
1365	$map->{last_save} = $cf::RUNTIME;	1994	$map->{last_save} = $cf::RUNTIME;
1366		1995
1367	$map->load_header	1996	$map->load_header
1368	or return;	1997	or return;
1369		1998
1370	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1999	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1371	# doing this can freeze the server in a sync job, obviously	2000	# doing this can freeze the server in a sync job, obviously
1372	#$cf::WAIT_FOR_TICK->wait;	2001	#$cf::WAIT_FOR_TICK->wait;
		2002	undef $guard1;
		2003	undef $guard2;
1373	$map->reset;	2004	$map->reset;
1374	undef $guard;
1375	return find $path;	2005	return find $path;
1376	}	2006	}
1377		2007
1378	$cf::MAP{$path} = $map	2008	$cf::MAP{$path} = $map
1379	}	2009	}
…		…
1386	my ($self) = @_;	2016	my ($self) = @_;
1387		2017
1388	local $self->{deny_reset} = 1; # loading can take a long time	2018	local $self->{deny_reset} = 1; # loading can take a long time
1389		2019
1390	my $path = $self->{path};	2020	my $path = $self->{path};
		2021
		2022	{
1391	my $guard = cf::lock_acquire "map_load:$path";	2023	my $guard = cf::lock_acquire "map_data:$path";
1392		2024
		2025	return unless $self->valid;
1393	return if $self->in_memory != cf::MAP_SWAPPED;	2026	return unless $self->in_memory == cf::MAP_SWAPPED;
1394		2027
1395	$self->in_memory (cf::MAP_LOADING);	2028	$self->in_memory (cf::MAP_LOADING);
1396		2029
1397	$self->alloc;	2030	$self->alloc;
1398		2031
1399	$self->pre_load;	2032	$self->pre_load;
		2033	cf::cede_to_tick;
1400		2034
1401	$self->_load_objects ($self->{load_path}, 1)	2035	my $f = new_from_file cf::object::thawer $self->{load_path};
		2036	$f->skip_block;
		2037	$self->_load_objects ($f)
1402	or return;	2038	or return;
1403		2039
1404	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2040	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1405	if delete $self->{load_original};	2041	if delete $self->{load_original};
1406		2042
1407	if (my $uniq = $self->uniq_path) {	2043	if (my $uniq = $self->uniq_path) {
1408	utf8::encode $uniq;	2044	utf8::encode $uniq;
1409	if (aio_open $uniq, O_RDONLY, 0) {	2045	unless (aio_stat $uniq) {
		2046	if (my $f = new_from_file cf::object::thawer $uniq) {
1410	$self->clear_unique_items;	2047	$self->clear_unique_items;
1411	$self->_load_objects ($uniq, 0);	2048	$self->_load_objects ($f);
		2049	$f->resolve_delayed_derefs;
		2050	}
1412	}	2051	}
1413	}	2052	}
1414		2053
1415	Coro::cede;	2054	$f->resolve_delayed_derefs;
1416		2055
		2056	cf::cede_to_tick;
1417	# now do the right thing for maps	2057	# now do the right thing for maps
1418	$self->link_multipart_objects;	2058	$self->link_multipart_objects;
1419
1420	unless ($self->{deny_activate}) {
1421	$self->decay_objects;
1422	$self->fix_auto_apply;
1423	$self->update_buttons;
1424	Coro::cede;
1425	$self->set_darkness_map;
1426	$self->difficulty ($self->estimate_difficulty)	2059	$self->difficulty ($self->estimate_difficulty)
1427	unless $self->difficulty;	2060	unless $self->difficulty;
1428	Coro::cede;	2061	cf::cede_to_tick;
		2062
		2063	unless ($self->{deny_activate}) {
		2064	$self->decay_objects;
		2065	$self->fix_auto_apply;
		2066	$self->update_buttons;
		2067	cf::cede_to_tick;
		2068	$self->set_darkness_map;
		2069	cf::cede_to_tick;
1429	$self->activate;	2070	$self->activate;
		2071	}
		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
		2076	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	2077	}
1431		2078
1432	$self->post_load;	2079	$self->post_load;
1433
1434	$self->in_memory (cf::MAP_IN_MEMORY);
1435	}	2080	}
1436		2081
1437	sub customise_for {	2082	sub customise_for {
1438	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1439		2084
1440	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1441	if $self->per_player;	2086	if $self->per_player;
1442		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1443	$self	2091	$self
1444	}	2092	}
1445		2093
1446	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1447	sub load_diag {	2095	sub load_neighbours {
1448	my ($map) = @_;	2096	my ($map) = @_;
1449		2097
1450	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1451		2099
1452	for (0 .. 3) {	2100	for (0 .. 3) {
1453	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1454	or next;	2102	or next;
1455	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1456	or next;	2104	or next;
1457	$neigh->load;	2105	$neigh->load;
1458		2106
		2107	push @neigh,
1459	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1460	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1461	}	2110	}
1462		2111
1463	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1464	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1465	or next;	2115	or next;
1466	$neigh->load;	2116	$neigh->load;
1467	}	2117	}
1468	}	2118	}
1469		2119
…		…
1474	}	2124	}
1475		2125
1476	sub do_load_sync {	2126	sub do_load_sync {
1477	my ($map) = @_;	2127	my ($map) = @_;
1478		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1479	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1480	}	2133	}
1481		2134
1482	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1483	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1484		2137
1485	sub find_async {	2138	sub find_async {
1486	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1487		2140
1488	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1489		2142
1490	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1491	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1492	}	2145	}
1493		2146
1494	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1495	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1496	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1497	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1498	my $map = find $path	2154	if (my $map = find $k) {
1499	or next;
1500	$map->load;	2155	$map->load if $v;
		2156	}
1501		2157
1502	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1503	}	2159	}
1504	}	2160	}
1505	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1506	};	2162	};
1507	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1510	}	2166	}
1511		2167
1512	sub save {	2168	sub save {
1513	my ($self) = @_;	2169	my ($self) = @_;
1514		2170
1515	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1516		2172
1517	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1518		2174
1519	return unless $self->dirty;	2175	return unless $self->dirty;
1520		2176
…		…
1526	return if $self->{deny_save};	2182	return if $self->{deny_save};
1527		2183
1528	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1529		2185
1530	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1531	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1532	};	2189	};
1533		2190
1534	if ($uniq) {	2191	if ($uniq) {
1535	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2192	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1543	my ($self) = @_;	2200	my ($self) = @_;
1544		2201
1545	# save first because save cedes	2202	# save first because save cedes
1546	$self->save;	2203	$self->save;
1547		2204
1548	my $lock = cf::lock_acquire "map_data:" . $self->path;	2205	my $lock = cf::lock_acquire "map_data:$self->{path}";
1549		2206
1550	return if $self->players;	2207	return if $self->players;
1551	return if $self->in_memory != cf::MAP_IN_MEMORY;	2208	return if $self->in_memory != cf::MAP_IN_MEMORY;
1552	return if $self->{deny_save};	2209	return if $self->{deny_save};
1553		2210
		2211	$self->in_memory (cf::MAP_SWAPPED);
		2212
		2213	$self->deactivate;
		2214	$_->clear_links_to ($self) for values %cf::MAP;
1554	$self->clear;	2215	$self->clear;
1555	$self->in_memory (cf::MAP_SWAPPED);
1556	}	2216	}
1557		2217
1558	sub reset_at {	2218	sub reset_at {
1559	my ($self) = @_;	2219	my ($self) = @_;
1560		2220
1561	# TODO: safety, remove and allow resettable per-player maps	2221	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->isa ("ext::map_per_player");#d#
1563	return 1e99 if $self->{deny_reset};	2222	return 1e99 if $self->{deny_reset};
1564		2223
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2224	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2225	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		2226
…		…
1578	my ($self) = @_;	2237	my ($self) = @_;
1579		2238
1580	my $lock = cf::lock_acquire "map_data:$self->{path}";	2239	my $lock = cf::lock_acquire "map_data:$self->{path}";
1581		2240
1582	return if $self->players;	2241	return if $self->players;
1583	return if $self->isa ("ext::map_per_player");#d#
1584		2242
1585	warn "resetting map ", $self->path;#d#	2243	warn "resetting map ", $self->path;
		2244
		2245	$self->in_memory (cf::MAP_SWAPPED);
		2246
		2247	# need to save uniques path
		2248	unless ($self->{deny_save}) {
		2249	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2250
		2251	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2252	if $uniq;
		2253	}
1586		2254
1587	delete $cf::MAP{$self->path};	2255	delete $cf::MAP{$self->path};
1588		2256
1589	$self->in_memory (cf::MAP_SWAPPED);	2257	$self->deactivate;
		2258	$_->clear_links_to ($self) for values %cf::MAP;
1590	$self->clear;	2259	$self->clear;
1591
1592	$_->clear_links_to ($self) for values %cf::MAP;
1593		2260
1594	$self->unlink_save;	2261	$self->unlink_save;
1595	$self->destroy;	2262	$self->destroy;
1596	}	2263	}
1597		2264
1598	my $nuke_counter = "aaaa";	2265	my $nuke_counter = "aaaa";
1599		2266
1600	sub nuke {	2267	sub nuke {
1601	my ($self) = @_;	2268	my ($self) = @_;
1602		2269
		2270	{
		2271	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2272
1603	delete $cf::MAP{$self->path};	2273	delete $cf::MAP{$self->path};
1604		2274
1605	$self->unlink_save;	2275	$self->unlink_save;
1606		2276
1607	bless $self, "cf::map";	2277	bless $self, "cf::map";
1608	delete $self->{deny_reset};	2278	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	2279	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	2280	$self->reset_timeout (1);
1611	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2281	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1612		2282
1613	$cf::MAP{$self->path} = $self;	2283	$cf::MAP{$self->path} = $self;
		2284	}
1614		2285
1615	$self->reset; # polite request, might not happen	2286	$self->reset; # polite request, might not happen
		2287	}
		2288
		2289	=item $maps = cf::map::tmp_maps
		2290
		2291	Returns an arrayref with all map paths of currently instantiated and saved
		2292	maps. May block.
		2293
		2294	=cut
		2295
		2296	sub tmp_maps() {
		2297	[
		2298	map {
		2299	utf8::decode $_;
		2300	/\.map$/
		2301	? normalise $_
		2302	: ()
		2303	} @{ aio_readdir $TMPDIR or [] }
		2304	]
		2305	}
		2306
		2307	=item $maps = cf::map::random_maps
		2308
		2309	Returns an arrayref with all map paths of currently instantiated and saved
		2310	random maps. May block.
		2311
		2312	=cut
		2313
		2314	sub random_maps() {
		2315	[
		2316	map {
		2317	utf8::decode $_;
		2318	/\.map$/
		2319	? normalise "?random/$_"
		2320	: ()
		2321	} @{ aio_readdir $RANDOMDIR or [] }
		2322	]
1616	}	2323	}
1617		2324
1618	=item cf::map::unique_maps	2325	=item cf::map::unique_maps
1619		2326
1620	Returns an arrayref of paths of all shared maps that have	2327	Returns an arrayref of paths of all shared maps that have
1621	instantiated unique items. May block.	2328	instantiated unique items. May block.
1622		2329
1623	=cut	2330	=cut
1624		2331
1625	sub unique_maps() {	2332	sub unique_maps() {
1626	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2333	[
1627	or return;	2334	map {
1628
1629	my @paths;
1630
1631	for (@$files) {
1632	utf8::decode $_;	2335	utf8::decode $_;
1633	next if /\.pst$/;	2336	/\.map$/
1634	next unless /^$PATH_SEP/o;	2337	? normalise $_
1635		2338	: ()
1636	push @paths, cf::map::normalise $_;	2339	} @{ aio_readdir $UNIQUEDIR or [] }
1637	}	2340	]
1638
1639	\@paths
1640	}	2341	}
1641		2342
1642	package cf;	2343	package cf;
1643		2344
1644	=back	2345	=back
…		…
1662	map { $_, inv_recursive_ $_->inv } @_	2363	map { $_, inv_recursive_ $_->inv } @_
1663	}	2364	}
1664		2365
1665	sub inv_recursive {	2366	sub inv_recursive {
1666	inv_recursive_ inv $_[0]	2367	inv_recursive_ inv $_[0]
		2368	}
		2369
		2370	=item $ref = $ob->ref
		2371
		2372	creates and returns a persistent reference to an objetc that can be stored as a string.
		2373
		2374	=item $ob = cf::object::deref ($refstring)
		2375
		2376	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2377	even if the object actually exists. May block.
		2378
		2379	=cut
		2380
		2381	sub deref {
		2382	my ($ref) = @_;
		2383
		2384	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2385	my ($uuid, $name) = ($1, $2);
		2386	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2387	or return;
		2388	$pl->ob->uuid eq $uuid
		2389	or return;
		2390
		2391	$pl->ob
		2392	} else {
		2393	warn "$ref: cannot resolve object reference\n";
		2394	undef
		2395	}
1667	}	2396	}
1668		2397
1669	package cf;	2398	package cf;
1670		2399
1671	=back	2400	=back
…		…
1690		2419
1691	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2420	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1692		2421
1693	if ($self->{record_replies}) {	2422	if ($self->{record_replies}) {
1694	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2423	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2424
1695	} else {	2425	} else {
		2426	my $pl = $self->contr;
		2427
		2428	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2429	my $dialog = $pl->{npc_dialog};
		2430	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2431
		2432	} else {
1696	$msg = $npc->name . " says: $msg" if $npc;	2433	$msg = $npc->name . " says: $msg" if $npc;
1697	$self->message ($msg, $flags);	2434	$self->message ($msg, $flags);
		2435	}
1698	}	2436	}
		2437	}
		2438
		2439	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2440
		2441	=cut
		2442
		2443	sub cf::object::send_msg {
		2444	my $pl = shift->contr
		2445	or return;
		2446	$pl->send_msg (@_);
1699	}	2447	}
1700		2448
1701	=item $player_object->may ("access")	2449	=item $player_object->may ("access")
1702		2450
1703	Returns wether the given player is authorized to access resource "access"	2451	Returns wether the given player is authorized to access resource "access"
…		…
1750	$self->deactivate_recursive;	2498	$self->deactivate_recursive;
1751		2499
1752	return if UNIVERSAL::isa $self->map, "ext::map_link";	2500	return if UNIVERSAL::isa $self->map, "ext::map_link";
1753		2501
1754	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1755	if $self->map;	2503	if $self->map && $self->map->{path} ne "{link}";
1756		2504
1757	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2505	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1758	}	2506	}
1759		2507
1760	sub cf::object::player::leave_link {	2508	sub cf::object::player::leave_link {
1761	my ($self, $map, $x, $y) = @_;	2509	my ($self, $map, $x, $y) = @_;
		2510
		2511	return unless $self->contr->active;
1762		2512
1763	my $link_pos = delete $self->{_link_pos};	2513	my $link_pos = delete $self->{_link_pos};
1764		2514
1765	unless ($map) {	2515	unless ($map) {
1766	# restore original map position	2516	# restore original map position
…		…
1780	# use -1 or undef as default coordinates, not 0, 0	2530	# use -1 or undef as default coordinates, not 0, 0
1781	($x, $y) = ($map->enter_x, $map->enter_y)	2531	($x, $y) = ($map->enter_x, $map->enter_y)
1782	if $x <=0 && $y <= 0;	2532	if $x <=0 && $y <= 0;
1783		2533
1784	$map->load;	2534	$map->load;
1785	$map->load_diag;	2535	$map->load_neighbours;
1786		2536
1787	return unless $self->contr->active;	2537	return unless $self->contr->active;
1788	$self->activate_recursive;	2538	$self->activate_recursive;
		2539
		2540	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1789	$self->enter_map ($map, $x, $y);	2541	$self->enter_map ($map, $x, $y);
1790	}	2542	}
1791		2543
1792	cf::player->attach (	2544	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1793	on_logout => sub {
1794	my ($pl) = @_;
1795		2545
1796	# abort map switching before logout	2546	Moves the player to the given map-path and coordinates by first freezing
1797	if ($pl->ob->{_link_pos}) {	2547	her, loading and preparing them map, calling the provided $check callback
1798	cf::sync_job {	2548	that has to return the map if sucecssful, and then unfreezes the player on
1799	$pl->ob->leave_link	2549	the new (success) or old (failed) map position. In either case, $done will
1800	};	2550	be called at the end of this process.
1801	}
1802	},
1803	on_login => sub {
1804	my ($pl) = @_;
1805		2551
1806	# try to abort aborted map switching on player login :)
1807	# should happen only on crashes
1808	if ($pl->ob->{_link_pos}) {
1809	$pl->ob->enter_link;
1810	(async {
1811	# we need this sleep as the login has a concurrent enter_exit running
1812	# and this sleep increases chances of the player not ending up in scorn
1813	$pl->ob->reply (undef,
1814	"There was an internal problem at your last logout, "
1815	. "the server will try to bring you to your intended destination in a second.",
1816	cf::NDI_RED);
1817	Coro::Timer::sleep 1;
1818	$pl->ob->leave_link;
1819	})->prio (2);
1820	}
1821	},
1822	);
1823
1824	=item $player_object->goto ($path, $x, $y)
1825
1826	=cut	2552	=cut
		2553
		2554	our $GOTOGEN;
1827		2555
1828	sub cf::object::player::goto {	2556	sub cf::object::player::goto {
1829	my ($self, $path, $x, $y) = @_;	2557	my ($self, $path, $x, $y, $check, $done) = @_;
		2558
		2559	# do generation counting so two concurrent goto's will be executed in-order
		2560	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1830		2561
1831	$self->enter_link;	2562	$self->enter_link;
1832		2563
1833	(async {	2564	(async {
		2565	$Coro::current->{desc} = "player::goto $path $x $y";
		2566
		2567	# *tag paths override both path and x|y
		2568	if ($path =~ /^\*(.*)$/) {
		2569	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2570	my $ob = $obs[rand @obs];
		2571
		2572	# see if we actually can go there
		2573	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2574	$ob = $obs[rand @obs];
		2575	} else {
		2576	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2577	}
		2578	# else put us there anyways for now #d#
		2579
		2580	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2581	} else {
		2582	($path, $x, $y) = (undef, undef, undef);
		2583	}
		2584	}
		2585
1834	my $map = eval {	2586	my $map = eval {
1835	my $map = cf::map::find $path;	2587	my $map = defined $path ? cf::map::find $path : undef;
		2588
		2589	if ($map) {
1836	$map = $map->customise_for ($self) if $map;	2590	$map = $map->customise_for ($self);
		2591	$map = $check->($map) if $check && $map;
		2592	} else {
		2593	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2594	}
		2595
1837	$map	2596	$map
		2597	};
		2598
		2599	if ($@) {
		2600	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2601	LOG llevError | logBacktrace, Carp::longmess $@;
1838	} or	2602	}
1839	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1840		2603
		2604	if ($gen == $self->{_goto_generation}) {
		2605	delete $self->{_goto_generation};
1841	$self->leave_link ($map, $x, $y);	2606	$self->leave_link ($map, $x, $y);
		2607	}
		2608
		2609	$done->() if $done;
1842	})->prio (1);	2610	})->prio (1);
1843	}	2611	}
1844		2612
1845	=item $player_object->enter_exit ($exit_object)	2613	=item $player_object->enter_exit ($exit_object)
1846		2614
…		…
1883	$rmp->{origin_y} = $exit->y;	2651	$rmp->{origin_y} = $exit->y;
1884	}	2652	}
1885		2653
1886	$rmp->{random_seed} ||= $exit->random_seed;	2654	$rmp->{random_seed} ||= $exit->random_seed;
1887		2655
1888	my $data = cf::to_json $rmp;	2656	my $data = cf::encode_json $rmp;
1889	my $md5 = Digest::MD5::md5_hex $data;	2657	my $md5 = Digest::MD5::md5_hex $data;
1890	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2658	my $meta = "$RANDOMDIR/$md5.meta";
1891		2659
1892	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2660	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1893	aio_write $fh, 0, (length $data), $data, 0;	2661	aio_write $fh, 0, (length $data), $data, 0;
1894	undef $fh;	2662	undef $fh;
1895	aio_rename "$meta~", $meta;	2663	aio_rename "$meta~", $meta;
…		…
1904		2672
1905	return unless $self->type == cf::PLAYER;	2673	return unless $self->type == cf::PLAYER;
1906		2674
1907	if ($exit->slaying eq "/!") {	2675	if ($exit->slaying eq "/!") {
1908	#TODO: this should de-fi-ni-te-ly not be a sync-job	2676	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2677	# the problem is that $exit might not survive long enough
		2678	# so it needs to be done right now, right here
1909	cf::sync_job { prepare_random_map $exit };	2679	cf::sync_job { prepare_random_map $exit };
1910	}	2680	}
1911		2681
1912	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2682	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1913	my $hp = $exit->stats->hp;	2683	my $hp = $exit->stats->hp;
1914	my $sp = $exit->stats->sp;	2684	my $sp = $exit->stats->sp;
1915		2685
1916	$self->enter_link;	2686	$self->enter_link;
1917		2687
		2688	# if exit is damned, update players death & WoR home-position
		2689	$self->contr->savebed ($slaying, $hp, $sp)
		2690	if $exit->flag (FLAG_DAMNED);
		2691
1918	(async {	2692	(async {
		2693	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2694
1919	$self->deactivate_recursive; # just to be sure	2695	$self->deactivate_recursive; # just to be sure
1920	unless (eval {	2696	unless (eval {
1921	$self->goto ($slaying, $hp, $sp);	2697	$self->goto ($slaying, $hp, $sp);
1922		2698
1923	1;	2699	1;
1924	}) {	2700	}) {
1925	$self->message ("Something went wrong deep within the crossfire server. "	2701	$self->message ("Something went wrong deep within the crossfire server. "
1926	. "I'll try to bring you back to the map you were before. "	2702	. "I'll try to bring you back to the map you were before. "
1927	. "Please report this to the dungeon master!",	2703	. "Please report this to the dungeon master!",
1928	cf::NDI_UNIQUE | cf::NDI_RED);	2704	cf::NDI_UNIQUE | cf::NDI_RED);
1929		2705
1930	warn "ERROR in enter_exit: $@";	2706	warn "ERROR in enter_exit: $@";
1931	$self->leave_link;	2707	$self->leave_link;
1932	}	2708	}
1933	})->prio (1);	2709	})->prio (1);
…		…
1946		2722
1947	sub cf::client::send_drawinfo {	2723	sub cf::client::send_drawinfo {
1948	my ($self, $text, $flags) = @_;	2724	my ($self, $text, $flags) = @_;
1949		2725
1950	utf8::encode $text;	2726	utf8::encode $text;
1951	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2727	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1952	}	2728	}
1953		2729
		2730	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2731
		2732	Send a drawinfo or msg packet to the client, formatting the msg for the
		2733	client if neccessary. C<$type> should be a string identifying the type of
		2734	the message, with C<log> being the default. If C<$color> is negative, suppress
		2735	the message unless the client supports the msg packet.
		2736
		2737	=cut
		2738
		2739	# non-persistent channels (usually the info channel)
		2740	our %CHANNEL = (
		2741	"c/identify" => {
		2742	id => "infobox",
		2743	title => "Identify",
		2744	reply => undef,
		2745	tooltip => "Items recently identified",
		2746	},
		2747	"c/examine" => {
		2748	id => "infobox",
		2749	title => "Examine",
		2750	reply => undef,
		2751	tooltip => "Signs and other items you examined",
		2752	},
		2753	"c/book" => {
		2754	id => "infobox",
		2755	title => "Book",
		2756	reply => undef,
		2757	tooltip => "The contents of a note or book",
		2758	},
		2759	"c/lookat" => {
		2760	id => "infobox",
		2761	title => "Look",
		2762	reply => undef,
		2763	tooltip => "What you saw there",
		2764	},
		2765	"c/who" => {
		2766	id => "infobox",
		2767	title => "Players",
		2768	reply => undef,
		2769	tooltip => "Shows players who are currently online",
		2770	},
		2771	"c/body" => {
		2772	id => "infobox",
		2773	title => "Body Parts",
		2774	reply => undef,
		2775	tooltip => "Shows which body parts you posess and are available",
		2776	},
		2777	"c/uptime" => {
		2778	id => "infobox",
		2779	title => "Uptime",
		2780	reply => undef,
		2781	tooltip => "How long the server has been running since last restart",
		2782	},
		2783	"c/mapinfo" => {
		2784	id => "infobox",
		2785	title => "Map Info",
		2786	reply => undef,
		2787	tooltip => "Information related to the maps",
		2788	},
		2789	);
		2790
		2791	sub cf::client::send_msg {
		2792	my ($self, $channel, $msg, $color, @extra) = @_;
		2793
		2794	$msg = $self->pl->expand_cfpod ($msg);
		2795
		2796	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2797
		2798	# check predefined channels, for the benefit of C
		2799	if ($CHANNEL{$channel}) {
		2800	$channel = $CHANNEL{$channel};
		2801
		2802	$self->ext_msg (channel_info => $channel)
		2803	if $self->can_msg;
		2804
		2805	$channel = $channel->{id};
		2806
		2807	} elsif (ref $channel) {
		2808	# send meta info to client, if not yet sent
		2809	unless (exists $self->{channel}{$channel->{id}}) {
		2810	$self->{channel}{$channel->{id}} = $channel;
		2811	$self->ext_msg (channel_info => $channel)
		2812	if $self->can_msg;
		2813	}
		2814
		2815	$channel = $channel->{id};
		2816	}
		2817
		2818	return unless @extra || length $msg;
		2819
		2820	if ($self->can_msg) {
		2821	# default colour, mask it out
		2822	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2823	if $color & cf::NDI_DEF;
		2824
		2825	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2826	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2827	} else {
		2828	if ($color >= 0) {
		2829	# replace some tags by gcfclient-compatible ones
		2830	for ($msg) {
		2831	1 while
		2832	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2833	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2834	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2835	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2836	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2837	}
		2838
		2839	$color &= cf::NDI_COLOR_MASK;
		2840
		2841	utf8::encode $msg;
		2842
		2843	if (0 && $msg =~ /\[/) {
		2844	# COMMAND/INFO
		2845	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2846	} else {
		2847	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2848	$self->send_packet ("drawinfo $color $msg")
		2849	}
		2850	}
		2851	}
		2852	}
		2853
		2854	=item $client->ext_msg ($type, @msg)
		2855
		2856	Sends an ext event to the client.
		2857
		2858	=cut
		2859
		2860	sub cf::client::ext_msg($$@) {
		2861	my ($self, $type, @msg) = @_;
		2862
		2863	if ($self->extcmd == 2) {
		2864	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2865	} elsif ($self->extcmd == 1) { # TODO: remove
		2866	push @msg, msgtype => "event_$type";
		2867	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2868	}
		2869	}
		2870
		2871	=item $client->ext_reply ($msgid, @msg)
		2872
		2873	Sends an ext reply to the client.
		2874
		2875	=cut
		2876
		2877	sub cf::client::ext_reply($$@) {
		2878	my ($self, $id, @msg) = @_;
		2879
		2880	if ($self->extcmd == 2) {
		2881	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2882	} elsif ($self->extcmd == 1) {
		2883	#TODO: version 1, remove
		2884	unshift @msg, msgtype => "reply", msgid => $id;
		2885	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2886	}
		2887	}
1954		2888
1955	=item $success = $client->query ($flags, "text", \&cb)	2889	=item $success = $client->query ($flags, "text", \&cb)
1956		2890
1957	Queues a query to the client, calling the given callback with	2891	Queues a query to the client, calling the given callback with
1958	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2892	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1959	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2893	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1960		2894
1961	Queries can fail, so check the return code. Or don't, as queries will become	2895	Queries can fail, so check the return code. Or don't, as queries will
1962	reliable at some point in the future.	2896	become reliable at some point in the future.
1963		2897
1964	=cut	2898	=cut
1965		2899
1966	sub cf::client::query {	2900	sub cf::client::query {
1967	my ($self, $flags, $text, $cb) = @_;	2901	my ($self, $flags, $text, $cb) = @_;
…		…
1975	utf8::encode $text;	2909	utf8::encode $text;
1976	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2910	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1977		2911
1978	$self->send_packet ($self->{query_queue}[0][0])	2912	$self->send_packet ($self->{query_queue}[0][0])
1979	if @{ $self->{query_queue} } == 1;	2913	if @{ $self->{query_queue} } == 1;
		2914
		2915	1
1980	}	2916	}
1981		2917
1982	cf::client->attach (	2918	cf::client->attach (
		2919	on_connect => sub {
		2920	my ($ns) = @_;
		2921
		2922	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2923	},
1983	on_reply => sub {	2924	on_reply => sub {
1984	my ($ns, $msg) = @_;	2925	my ($ns, $msg) = @_;
1985		2926
1986	# this weird shuffling is so that direct followup queries	2927	# this weird shuffling is so that direct followup queries
1987	# get handled first	2928	# get handled first
1988	my $queue = delete $ns->{query_queue}	2929	my $queue = delete $ns->{query_queue}
1989	or return; # be conservative, not sure how that can happen, but we saw a crash here	2930	or return; # be conservative, not sure how that can happen, but we saw a crash here
1990		2931
1991	(shift @$queue)->[1]->($msg);	2932	(shift @$queue)->[1]->($msg);
		2933	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1992		2934
1993	push @{ $ns->{query_queue} }, @$queue;	2935	push @{ $ns->{query_queue} }, @$queue;
1994		2936
1995	if (@{ $ns->{query_queue} } == @$queue) {	2937	if (@{ $ns->{query_queue} } == @$queue) {
1996	if (@$queue) {	2938	if (@$queue) {
…		…
1998	} else {	2940	} else {
1999	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2941	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2000	}	2942	}
2001	}	2943	}
2002	},	2944	},
		2945	on_exticmd => sub {
		2946	my ($ns, $buf) = @_;
		2947
		2948	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2949
		2950	if (ref $msg) {
		2951	my ($type, $reply, @payload) =
		2952	"ARRAY" eq ref $msg
		2953	? @$msg
		2954	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2955
		2956	my @reply;
		2957
		2958	if (my $cb = $EXTICMD{$type}) {
		2959	@reply = $cb->($ns, @payload);
		2960	}
		2961
		2962	$ns->ext_reply ($reply, @reply)
		2963	if $reply;
		2964
		2965	} else {
		2966	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2967	}
		2968
		2969	cf::override;
		2970	},
2003	);	2971	);
2004		2972
2005	=item $client->async (\&cb)	2973	=item $client->async (\&cb)
2006		2974
2007	Create a new coroutine, running the specified callback. The coroutine will	2975	Create a new coroutine, running the specified callback. The coroutine will
…		…
2048	our $safe = new Safe "safe";	3016	our $safe = new Safe "safe";
2049	our $safe_hole = new Safe::Hole;	3017	our $safe_hole = new Safe::Hole;
2050		3018
2051	$SIG{FPE} = 'IGNORE';	3019	$SIG{FPE} = 'IGNORE';
2052		3020
2053	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3021	$safe->permit_only (Opcode::opset qw(
		3022	:base_core :base_mem :base_orig :base_math
		3023	grepstart grepwhile mapstart mapwhile
		3024	sort time
		3025	));
2054		3026
2055	# here we export the classes and methods available to script code	3027	# here we export the classes and methods available to script code
2056		3028
2057	=pod	3029	=pod
2058		3030
2059	The following fucntions and emthods are available within a safe environment:	3031	The following functions and methods are available within a safe environment:
2060		3032
2061	cf::object contr pay_amount pay_player map	3033	cf::object
		3034	contr pay_amount pay_player map x y force_find force_add destroy
		3035	insert remove name archname title slaying race decrease_ob_nr
		3036
2062	cf::object::player player	3037	cf::object::player
2063	cf::player peaceful	3038	player
2064	cf::map trigger	3039
		3040	cf::player
		3041	peaceful
		3042
		3043	cf::map
		3044	trigger
2065		3045
2066	=cut	3046	=cut
2067		3047
2068	for (	3048	for (
2069	["cf::object" => qw(contr pay_amount pay_player map)],	3049	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3050	insert remove inv name archname title slaying race
		3051	decrease_ob_nr destroy)],
2070	["cf::object::player" => qw(player)],	3052	["cf::object::player" => qw(player)],
2071	["cf::player" => qw(peaceful)],	3053	["cf::player" => qw(peaceful)],
2072	["cf::map" => qw(trigger)],	3054	["cf::map" => qw(trigger)],
2073	) {	3055	) {
2074	no strict 'refs';	3056	no strict 'refs';
…		…
2145	=back	3127	=back
2146		3128
2147	=cut	3129	=cut
2148		3130
2149	#############################################################################	3131	#############################################################################
		3132	# the server's init and main functions
2150		3133
2151	=head2 EXTENSION DATABASE SUPPORT	3134	sub load_facedata($) {
		3135	my ($path) = @_;
2152		3136
2153	Crossfire maintains a very simple database for extension use. It can	3137	# HACK to clear player env face cache, we need some signal framework
2154	currently store anything that can be serialised using Storable, which	3138	# for this (global event?)
2155	excludes objects.	3139	%ext::player_env::MUSIC_FACE_CACHE = ();
2156		3140
2157	The parameter C<$family> should best start with the name of the extension	3141	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2158	using it, it should be unique.
2159		3142
2160	=over 4	3143	warn "loading facedata from $path\n";
2161		3144
2162	=item $hashref = cf::db_get $family	3145	my $facedata;
		3146	0 < aio_load $path, $facedata
		3147	or die "$path: $!";
2163		3148
2164	Return a hashref for use by the extension C<$family>, which can be	3149	$facedata = Coro::Storable::thaw $facedata;
2165	modified. After modifications, you have to call C<cf::db_dirty> or
2166	C<cf::db_sync>.
2167		3150
2168	=item $value = cf::db_get $family => $key	3151	$facedata->{version} == 2
		3152	or cf::cleanup "$path: version mismatch, cannot proceed.";
2169		3153
2170	Returns a single value from the database	3154	# patch in the exptable
2171		3155	$facedata->{resource}{"res/exp_table"} = {
2172	=item cf::db_put $family => $hashref	3156	type => FT_RSRC,
2173		3157	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2174	Stores the given family hashref into the database. Updates are delayed, if
2175	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2176
2177	=item cf::db_put $family => $key => $value
2178
2179	Stores the given C<$value> in the family hash. Updates are delayed, if you
2180	want the data to be synced to disk immediately, use C<cf::db_sync>.
2181
2182	=item cf::db_dirty
2183
2184	Marks the database as dirty, to be updated at a later time.
2185
2186	=item cf::db_sync
2187
2188	Immediately write the database to disk I<if it is dirty>.
2189
2190	=cut
2191
2192	our $DB;
2193
2194	{
2195	my $path = cf::localdir . "/database.pst";
2196
2197	sub db_load() {
2198	$DB = stat $path ? Storable::retrieve $path : { };
2199	}	3158	};
		3159	cf::cede_to_tick;
2200		3160
2201	my $pid;
2202
2203	sub db_save() {
2204	waitpid $pid, 0 if $pid;
2205	if (0 == ($pid = fork)) {
2206	$DB->{_meta}{version} = 1;
2207	Storable::nstore $DB, "$path~";
2208	rename "$path~", $path;
2209	cf::_exit 0 if defined $pid;
2210	}
2211	}	3161	{
		3162	my $faces = $facedata->{faceinfo};
2212		3163
2213	my $dirty;	3164	while (my ($face, $info) = each %$faces) {
		3165	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2214		3166
2215	sub db_sync() {	3167	cf::face::set_visibility $idx, $info->{visibility};
2216	db_save if $dirty;	3168	cf::face::set_magicmap $idx, $info->{magicmap};
2217	undef $dirty;	3169	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2218	}	3170	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2219		3171
2220	my $idle = Event->idle (	3172	cf::cede_to_tick;
2221	reentrant => 0,
2222	min => 10,
2223	max => 20,
2224	repeat => 0,
2225	data => WF_AUTOCANCEL,
2226	cb => \&db_sync,
2227	);
2228
2229	sub db_dirty() {
2230	$dirty = 1;
2231	$idle->start;
2232	}
2233
2234	sub db_get($;$) {
2235	@_ >= 2
2236	? $DB->{$_[0]}{$_[1]}
2237	: ($DB->{$_[0]} ||= { })
2238	}
2239
2240	sub db_put($$;$) {
2241	if (@_ >= 3) {
2242	$DB->{$_[0]}{$_[1]} = $_[2];
2243	} else {
2244	$DB->{$_[0]} = $_[1];
2245	}
2246	db_dirty;
2247	}
2248
2249	cf::global->attach (
2250	prio => 10000,
2251	on_cleanup => sub {
2252	db_sync;
2253	},	3173	}
2254	);
2255	}
2256		3174
2257	#############################################################################	3175	while (my ($face, $info) = each %$faces) {
2258	# the server's main()	3176	next unless $info->{smooth};
2259		3177
2260	sub cfg_load {	3178	my $idx = cf::face::find $face
		3179	or next;
		3180
		3181	if (my $smooth = cf::face::find $info->{smooth}) {
		3182	cf::face::set_smooth $idx, $smooth;
		3183	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3184	} else {
		3185	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3186	}
		3187
		3188	cf::cede_to_tick;
		3189	}
		3190	}
		3191
		3192	{
		3193	my $anims = $facedata->{animinfo};
		3194
		3195	while (my ($anim, $info) = each %$anims) {
		3196	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3197	cf::cede_to_tick;
		3198	}
		3199
		3200	cf::anim::invalidate_all; # d'oh
		3201	}
		3202
		3203	{
		3204	# TODO: for gcfclient pleasure, we should give resources
		3205	# that gcfclient doesn't grok a >10000 face index.
		3206	my $res = $facedata->{resource};
		3207
		3208	while (my ($name, $info) = each %$res) {
		3209	if (defined $info->{type}) {
		3210	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3211	my $data;
		3212
		3213	if ($info->{type} & 1) {
		3214	# prepend meta info
		3215
		3216	my $meta = $enc->encode ({
		3217	name => $name,
		3218	%{ $info->{meta} || {} },
		3219	});
		3220
		3221	$data = pack "(w/a*)*", $meta, $info->{data};
		3222	} else {
		3223	$data = $info->{data};
		3224	}
		3225
		3226	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3227	cf::face::set_type $idx, $info->{type};
		3228	} else {
		3229	$RESOURCE{$name} = $info;
		3230	}
		3231
		3232	cf::cede_to_tick;
		3233	}
		3234	}
		3235
		3236	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3237
		3238	1
		3239	}
		3240
		3241	cf::global->attach (on_resource_update => sub {
		3242	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3243	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3244
		3245	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3246	my $sound = $soundconf->{compat}[$_]
		3247	or next;
		3248
		3249	my $face = cf::face::find "sound/$sound->[1]";
		3250	cf::sound::set $sound->[0] => $face;
		3251	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3252	}
		3253
		3254	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3255	my $face = cf::face::find "sound/$v";
		3256	cf::sound::set $k => $face;
		3257	}
		3258	}
		3259	});
		3260
		3261	register_exticmd fx_want => sub {
		3262	my ($ns, $want) = @_;
		3263
		3264	while (my ($k, $v) = each %$want) {
		3265	$ns->fx_want ($k, $v);
		3266	}
		3267	};
		3268
		3269	sub reload_regions {
		3270	# HACK to clear player env face cache, we need some signal framework
		3271	# for this (global event?)
		3272	%ext::player_env::MUSIC_FACE_CACHE = ();
		3273
		3274	load_resource_file "$MAPDIR/regions"
		3275	or die "unable to load regions file\n";
		3276
		3277	for (cf::region::list) {
		3278	$_->{match} = qr/$_->{match}/
		3279	if exists $_->{match};
		3280	}
		3281	}
		3282
		3283	sub reload_facedata {
		3284	load_facedata "$DATADIR/facedata"
		3285	or die "unable to load facedata\n";
		3286	}
		3287
		3288	sub reload_archetypes {
		3289	load_resource_file "$DATADIR/archetypes"
		3290	or die "unable to load archetypes\n";
		3291	#d# NEED to laod twice to resolve forward references
		3292	# this really needs to be done in an extra post-pass
		3293	# (which needs to be synchronous, so solve it differently)
		3294	load_resource_file "$DATADIR/archetypes"
		3295	or die "unable to load archetypes\n";
		3296	}
		3297
		3298	sub reload_treasures {
		3299	load_resource_file "$DATADIR/treasures"
		3300	or die "unable to load treasurelists\n";
		3301	}
		3302
		3303	sub reload_resources {
		3304	warn "reloading resource files...\n";
		3305
		3306	reload_regions;
		3307	reload_facedata;
		3308	#reload_archetypes;#d#
		3309	reload_archetypes;
		3310	reload_treasures;
		3311
		3312	warn "finished reloading resource files\n";
		3313	}
		3314
		3315	sub init {
		3316	reload_resources;
		3317	}
		3318
		3319	sub reload_config {
2261	open my $fh, "<:utf8", cf::confdir . "/config"	3320	open my $fh, "<:utf8", "$CONFDIR/config"
2262	or return;	3321	or return;
2263		3322
2264	local $/;	3323	local $/;
2265	*CFG = YAML::Syck::Load <$fh>;	3324	*CFG = YAML::Load <$fh>;
2266		3325
2267	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3326	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2268		3327
2269	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3328	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2270	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3329	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2281	sub main {	3340	sub main {
2282	# we must not ever block the main coroutine	3341	# we must not ever block the main coroutine
2283	local $Coro::idle = sub {	3342	local $Coro::idle = sub {
2284	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3343	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2285	(async {	3344	(async {
2286	Event::one_event;	3345	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3346	EV::loop EV::LOOP_ONESHOT;
2287	})->prio (Coro::PRIO_MAX);	3347	})->prio (Coro::PRIO_MAX);
2288	};	3348	};
2289		3349
2290	cfg_load;	3350	reload_config;
2291	db_load;	3351	db_init;
2292	load_extensions;	3352	load_extensions;
2293		3353
2294	$TICK_WATCHER->start;	3354	$TICK_WATCHER->start;
		3355	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2295	Event::loop;	3356	EV::loop;
2296	}	3357	}
2297		3358
2298	#############################################################################	3359	#############################################################################
2299	# initialisation and cleanup	3360	# initialisation and cleanup
2300		3361
2301	# install some emergency cleanup handlers	3362	# install some emergency cleanup handlers
2302	BEGIN {	3363	BEGIN {
		3364	our %SIGWATCHER = ();
2303	for my $signal (qw(INT HUP TERM)) {	3365	for my $signal (qw(INT HUP TERM)) {
2304	Event->signal (	3366	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2305	reentrant => 0,
2306	data => WF_AUTOCANCEL,
2307	signal => $signal,
2308	prio => 0,
2309	cb => sub {
2310	cf::cleanup "SIG$signal";	3367	cf::cleanup "SIG$signal";
2311	},
2312	);	3368	};
		3369	}
		3370	}
		3371
		3372	sub write_runtime {
		3373	my $runtime = "$LOCALDIR/runtime";
		3374
		3375	# first touch the runtime file to show we are still running:
		3376	# the fsync below can take a very very long time.
		3377
		3378	IO::AIO::aio_utime $runtime, undef, undef;
		3379
		3380	my $guard = cf::lock_acquire "write_runtime";
		3381
		3382	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3383	or return;
		3384
		3385	my $value = $cf::RUNTIME + 90 + 10;
		3386	# 10 is the runtime save interval, for a monotonic clock
		3387	# 60 allows for the watchdog to kill the server.
		3388
		3389	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3390	and return;
		3391
		3392	# always fsync - this file is important
		3393	aio_fsync $fh
		3394	and return;
		3395
		3396	# touch it again to show we are up-to-date
		3397	aio_utime $fh, undef, undef;
		3398
		3399	close $fh
		3400	or return;
		3401
		3402	aio_rename "$runtime~", $runtime
		3403	and return;
		3404
		3405	warn "runtime file written.\n";
		3406
2313	}	3407	1
2314	}	3408	}
2315		3409
2316	sub emergency_save() {	3410	sub emergency_save() {
2317	my $freeze_guard = cf::freeze_mainloop;	3411	my $freeze_guard = cf::freeze_mainloop;
2318		3412
…		…
2324	# and maps saved/destroyed asynchronously.	3418	# and maps saved/destroyed asynchronously.
2325	warn "begin emergency player save\n";	3419	warn "begin emergency player save\n";
2326	for my $login (keys %cf::PLAYER) {	3420	for my $login (keys %cf::PLAYER) {
2327	my $pl = $cf::PLAYER{$login} or next;	3421	my $pl = $cf::PLAYER{$login} or next;
2328	$pl->valid or next;	3422	$pl->valid or next;
		3423	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2329	$pl->save;	3424	$pl->save;
2330	}	3425	}
2331	warn "end emergency player save\n";	3426	warn "end emergency player save\n";
2332		3427
2333	warn "begin emergency map save\n";	3428	warn "begin emergency map save\n";
…		…
2335	my $map = $cf::MAP{$path} or next;	3430	my $map = $cf::MAP{$path} or next;
2336	$map->valid or next;	3431	$map->valid or next;
2337	$map->save;	3432	$map->save;
2338	}	3433	}
2339	warn "end emergency map save\n";	3434	warn "end emergency map save\n";
		3435
		3436	warn "begin emergency database checkpoint\n";
		3437	BDB::db_env_txn_checkpoint $DB_ENV;
		3438	warn "end emergency database checkpoint\n";
2340	};	3439	};
2341		3440
2342	warn "leave emergency perl save\n";	3441	warn "leave emergency perl save\n";
2343	}	3442	}
2344		3443
		3444	sub post_cleanup {
		3445	my ($make_core) = @_;
		3446
		3447	warn Carp::longmess "post_cleanup backtrace"
		3448	if $make_core;
		3449	}
		3450
2345	sub reload() {	3451	sub do_reload_perl() {
2346	# can/must only be called in main	3452	# can/must only be called in main
2347	if ($Coro::current != $Coro::main) {	3453	if ($Coro::current != $Coro::main) {
2348	warn "can only reload from main coroutine";	3454	warn "can only reload from main coroutine";
2349	return;	3455	return;
2350	}	3456	}
2351		3457
2352	warn "reloading...";	3458	warn "reloading...";
2353		3459
2354	warn "cancelling server ticker";	3460	warn "entering sync_job";
2355	$TICK_WATCHER->cancel;
2356		3461
		3462	cf::sync_job {
		3463	cf::write_runtime; # external watchdog should not bark
2357	cf::emergency_save;	3464	cf::emergency_save;
		3465	cf::write_runtime; # external watchdog should not bark
2358		3466
2359	eval {	3467	warn "syncing database to disk";
		3468	BDB::db_env_txn_checkpoint $DB_ENV;
		3469
2360	# if anything goes wrong in here, we should simply crash as we already saved	3470	# if anything goes wrong in here, we should simply crash as we already saved
2361
2362	warn "syncing database to disk";
2363	cf::db_sync;
2364
2365	warn "cancelling all WF_AUTOCANCEL watchers";
2366	for (Event::all_watchers) {
2367	$_->cancel if $_->data & WF_AUTOCANCEL;
2368	}
2369		3471
2370	warn "flushing outstanding aio requests";	3472	warn "flushing outstanding aio requests";
2371	for (;;) {	3473	for (;;) {
		3474	BDB::flush;
2372	IO::AIO::flush;	3475	IO::AIO::flush;
2373	Coro::cede;	3476	Coro::cede_notself;
2374	last unless IO::AIO::nreqs;	3477	last unless IO::AIO::nreqs || BDB::nreqs;
2375	warn "iterate...";	3478	warn "iterate...";
2376	}	3479	}
		3480
		3481	++$RELOAD;
2377		3482
2378	warn "cancelling all extension coros";	3483	warn "cancelling all extension coros";
2379	$_->cancel for values %EXT_CORO;	3484	$_->cancel for values %EXT_CORO;
2380	%EXT_CORO = ();	3485	%EXT_CORO = ();
2381		3486
2382	warn "removing commands";	3487	warn "removing commands";
2383	%COMMAND = ();	3488	%COMMAND = ();
2384		3489
2385	warn "removing ext commands";	3490	warn "removing ext/exti commands";
2386	%EXTCMD = ();	3491	%EXTCMD = ();
		3492	%EXTICMD = ();
2387		3493
2388	warn "unloading/nuking all extensions";	3494	warn "unloading/nuking all extensions";
2389	for my $pkg (@EXTS) {	3495	for my $pkg (@EXTS) {
2390	warn "... unloading $pkg";	3496	warn "... unloading $pkg";
2391		3497
…		…
2421	Symbol::delete_package "safe::$_"	3527	Symbol::delete_package "safe::$_"
2422	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3528	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2423		3529
2424	warn "unloading cf.pm \"a bit\"";	3530	warn "unloading cf.pm \"a bit\"";
2425	delete $INC{"cf.pm"};	3531	delete $INC{"cf.pm"};
		3532	delete $INC{"cf/pod.pm"};
2426		3533
2427	# don't, removes xs symbols, too,	3534	# don't, removes xs symbols, too,
2428	# and global variables created in xs	3535	# and global variables created in xs
2429	#Symbol::delete_package __PACKAGE__;	3536	#Symbol::delete_package __PACKAGE__;
2430		3537
…		…
2433	warn "reloading cf.pm";	3540	warn "reloading cf.pm";
2434	require cf;	3541	require cf;
2435	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3542	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2436		3543
2437	warn "loading config and database again";	3544	warn "loading config and database again";
2438	cf::cfg_load;	3545	cf::reload_config;
2439	cf::db_load;
2440		3546
2441	warn "loading extensions";	3547	warn "loading extensions";
2442	cf::load_extensions;	3548	cf::load_extensions;
2443		3549
2444	warn "reattaching attachments to objects/players";	3550	warn "reattaching attachments to objects/players";
2445	_global_reattach;	3551	_global_reattach; # objects, sockets
2446	warn "reattaching attachments to maps";	3552	warn "reattaching attachments to maps";
2447	reattach $_ for values %MAP;	3553	reattach $_ for values %MAP;
		3554	warn "reattaching attachments to players";
		3555	reattach $_ for values %PLAYER;
2448		3556
2449	warn "restarting server ticker";	3557	warn "leaving sync_job";
2450		3558
2451	$TICK_WATCHER->start;	3559	1
		3560	} or do {
		3561	warn $@;
		3562	cf::cleanup "error while reloading, exiting.";
2452	};	3563	};
2453
2454	if ($@) {
2455	warn $@;
2456	warn "error while reloading, exiting.";
2457	exit 1;
2458	}
2459		3564
2460	warn "reloaded";	3565	warn "reloaded";
2461	};	3566	};
2462		3567
2463	our $RELOAD_WATCHER; # used only during reload	3568	our $RELOAD_WATCHER; # used only during reload
2464		3569
		3570	sub reload_perl() {
		3571	# doing reload synchronously and two reloads happen back-to-back,
		3572	# coro crashes during coro_state_free->destroy here.
		3573
		3574	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3575	do_reload_perl;
		3576	undef $RELOAD_WATCHER;
		3577	};
		3578	}
		3579
2465	register_command "reload" => sub {	3580	register_command "reload" => sub {
2466	my ($who, $arg) = @_;	3581	my ($who, $arg) = @_;
2467		3582
2468	if ($who->flag (FLAG_WIZ)) {	3583	if ($who->flag (FLAG_WIZ)) {
2469	$who->message ("reloading server.");	3584	$who->message ("reloading server.");
2470		3585	async {
2471	# doing reload synchronously and two reloads happen back-to-back,	3586	$Coro::current->{desc} = "perl_reload";
2472	# coro crashes during coro_state_free->destroy here.
2473
2474	$RELOAD_WATCHER ||= Event->timer (
2475	reentrant => 0,
2476	after => 0,
2477	data => WF_AUTOCANCEL,
2478	cb => sub {
2479	reload;	3587	reload_perl;
2480	undef $RELOAD_WATCHER;
2481	},
2482	);	3588	};
2483	}	3589	}
2484	};	3590	};
2485		3591
2486	unshift @INC, $LIBDIR;	3592	unshift @INC, $LIBDIR;
2487		3593
2488	my $bug_warning = 0;	3594	my $bug_warning = 0;
2489		3595
2490	$TICK_WATCHER = Event->timer (	3596	our @WAIT_FOR_TICK;
2491	reentrant => 0,	3597	our @WAIT_FOR_TICK_BEGIN;
2492	parked => 1,	3598
2493	prio => 0,	3599	sub wait_for_tick {
2494	at => $NEXT_TICK || $TICK,	3600	return unless $TICK_WATCHER->is_active;
2495	data => WF_AUTOCANCEL,	3601	return if $Coro::current == $Coro::main;
2496	cb => sub {	3602
		3603	my $signal = new Coro::Signal;
		3604	push @WAIT_FOR_TICK, $signal;
		3605	$signal->wait;
		3606	}
		3607
		3608	sub wait_for_tick_begin {
		3609	return unless $TICK_WATCHER->is_active;
		3610	return if $Coro::current == $Coro::main;
		3611
		3612	my $signal = new Coro::Signal;
		3613	push @WAIT_FOR_TICK_BEGIN, $signal;
		3614	$signal->wait;
		3615	}
		3616
		3617	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
2497	if ($Coro::current != $Coro::main) {	3618	if ($Coro::current != $Coro::main) {
2498	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3619	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2499	unless ++$bug_warning > 10;	3620	unless ++$bug_warning > 10;
2500	return;	3621	return;
2501	}	3622	}
2502		3623
2503	$NOW = Event::time;	3624	$NOW = $tick_start = EV::now;
2504		3625
2505	cf::server_tick; # one server iteration	3626	cf::server_tick; # one server iteration
		3627
2506	$RUNTIME += $TICK;	3628	$RUNTIME += $TICK;
2507	$NEXT_TICK += $TICK;	3629	$NEXT_TICK = $_[0]->at;
2508		3630
2509	$WAIT_FOR_TICK->broadcast;	3631	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2510	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3632	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2511		3633	Coro::async_pool {
2512	Event::sweep;	3634	$Coro::current->{desc} = "runtime saver";
2513	Coro::cede_notself;
2514
2515	# my $AFTER = Event::time;
2516	# warn $AFTER - $NOW;#d#
2517
2518	# if we are delayed by four ticks or more, skip them all
2519	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2520
2521	$TICK_WATCHER->at ($NEXT_TICK);
2522	$TICK_WATCHER->start;
2523	},
2524	);
2525
2526	IO::AIO::max_poll_time $TICK * 0.1;
2527
2528	undef $Coro::AIO::WATCHER;
2529	$AIO_POLL_WATCHER = Event->io (
2530	reentrant => 0,
2531	fd => IO::AIO::poll_fileno,
2532	poll => 'r',
2533	prio => 6,
2534	data => WF_AUTOCANCEL,
2535	cb => \&IO::AIO::poll_cb,
2536	);
2537
2538	$WRITE_RUNTIME_WATCHER = Event->timer (
2539	reentrant => 0,
2540	data => WF_AUTOCANCEL,
2541	after => 1,
2542	interval => 10,
2543	prio => 6, # keep it lowest so it acts like a watchdog
2544	cb => Coro::unblock_sub {
2545	write_runtime	3635	write_runtime
2546	or warn "ERROR: unable to write runtime file: $!";	3636	or warn "ERROR: unable to write runtime file: $!";
		3637	};
2547	},	3638	}
2548	);	3639
		3640	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3641	$sig->send;
		3642	}
		3643	while (my $sig = shift @WAIT_FOR_TICK) {
		3644	$sig->send;
		3645	}
		3646
		3647	$LOAD = ($NOW - $tick_start) / $TICK;
		3648	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3649
		3650	_post_tick;
		3651	};
		3652	$TICK_WATCHER->priority (EV::MAXPRI);
		3653
		3654	{
		3655	# configure BDB
		3656
		3657	BDB::min_parallel 8;
		3658	BDB::max_poll_reqs $TICK * 0.1;
		3659	$Coro::BDB::WATCHER->priority (1);
		3660
		3661	unless ($DB_ENV) {
		3662	$DB_ENV = BDB::db_env_create;
		3663	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3664	| BDB::LOG_AUTOREMOVE, 1);
		3665	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3666	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3667
		3668	cf::sync_job {
		3669	eval {
		3670	BDB::db_env_open
		3671	$DB_ENV,
		3672	$BDBDIR,
		3673	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3674	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3675	0666;
		3676
		3677	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3678	};
		3679
		3680	cf::cleanup "db_env_open(db): $@" if $@;
		3681	};
		3682	}
		3683
		3684	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3685	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3686	};
		3687	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3688	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3689	};
		3690	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3691	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3692	};
		3693	}
		3694
		3695	{
		3696	# configure IO::AIO
		3697
		3698	IO::AIO::min_parallel 8;
		3699	IO::AIO::max_poll_time $TICK * 0.1;
		3700	$Coro::AIO::WATCHER->priority (1);
		3701	}
		3702
		3703	my $_log_backtrace;
		3704
		3705	sub _log_backtrace {
		3706	my ($msg, @addr) = @_;
		3707
		3708	$msg =~ s/\n//;
		3709
		3710	# limit the # of concurrent backtraces
		3711	if ($_log_backtrace < 2) {
		3712	++$_log_backtrace;
		3713	async {
		3714	$Coro::current->{desc} = "abt $msg";
		3715
		3716	my @bt = fork_call {
		3717	@addr = map { sprintf "%x", $_ } @addr;
		3718	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3719	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3720	or die "addr2line: $!";
		3721
		3722	my @funcs;
		3723	my @res = <$fh>;
		3724	chomp for @res;
		3725	while (@res) {
		3726	my ($func, $line) = splice @res, 0, 2, ();
		3727	push @funcs, "[$func] $line";
		3728	}
		3729
		3730	@funcs
		3731	};
		3732
		3733	LOG llevInfo, "[ABT] $msg\n";
		3734	LOG llevInfo, "[ABT] $_\n" for @bt;
		3735	--$_log_backtrace;
		3736	};
		3737	} else {
		3738	LOG llevInfo, "[ABT] $msg\n";
		3739	LOG llevInfo, "[ABT] [suppressed]\n";
		3740	}
		3741	}
		3742
		3743	# load additional modules
		3744	use cf::pod;
2549		3745
2550	END { cf::emergency_save }	3746	END { cf::emergency_save }
2551		3747
2552	1	3748	1
2553		3749

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