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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC vs.
Revision 1.287 by root, Mon Jun 25 05:43:45 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXTICMD = ();
		55	our %EXT_CORO = (); # coroutines bound to extensions
		56	our %EXT_MAP = (); # pluggable maps
38		57
		58	our $RELOAD; # number of reloads so far
39	our @EVENT;	59	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		60
42	our $TICK = MAX_TIME * 1e-6;	61	our $CONFDIR = confdir;
		62	our $DATADIR = datadir;
		63	our $LIBDIR = "$DATADIR/ext";
		64	our $PODDIR = "$DATADIR/pod";
		65	our $MAPDIR = "$DATADIR/" . mapdir;
		66	our $LOCALDIR = localdir;
		67	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		68	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		69	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		70	our $RANDOMDIR = "$LOCALDIR/random";
		71	our $BDBDIR = "$LOCALDIR/db";
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	74	our $TICK_WATCHER;
		75	our $AIO_POLL_WATCHER;
		76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	77	our $NEXT_TICK;
45	our $NOW;	78	our $NOW;
		79	our $USE_FSYNC = 1; # use fsync to write maps - default off
		80
		81	our $BDB_POLL_WATCHER;
		82	our $DB_ENV;
46		83
47	our %CFG;	84	our %CFG;
48		85
49	our $UPTIME; $UPTIME ||= time;	86	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	87	our $RUNTIME;
51		88
		89	our %PLAYER; # all users
52	our %MAP; # all maps	90	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	91	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	92
55	our %EXT_CORO;	93	# used to convert map paths into valid unix filenames by replacing / by ∕
		94	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		95
		96	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		97	our $LOADAVG; # same thing, but with alpha-smoothing
		98	our $tick_start; # for load detecting purposes
56		99
57	binmode STDOUT;	100	binmode STDOUT;
58	binmode STDERR;	101	binmode STDERR;
59		102
60	# read virtual server time, if available	103	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	104	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	105	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	106	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	107	$RUNTIME = <$fh> + 0.;
65	}	108	}
66		109
67	mkdir cf::localdir;	110	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	111	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		112
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	113	our $EMERGENCY_POSITION;
		114
		115	sub cf::map::normalise;
76		116
77	#############################################################################	117	#############################################################################
78		118
79	=head2 GLOBAL VARIABLES	119	=head2 GLOBAL VARIABLES
80		120
…		…
87	=item $cf::RUNTIME	127	=item $cf::RUNTIME
88		128
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	129	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	130	every server tick.
91		131
92	=item $cf::LIBDIR	132	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		133	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		134	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		135
94	The perl library directory, where extensions and cf-specific modules can	136	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	137	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		138	unique-items directory, player file directory, random maps directory and
		139	database environment.
96		140
97	=item $cf::NOW	141	=item $cf::NOW
98		142
99	The time of the last (current) server tick.	143	The time of the last (current) server tick.
100		144
101	=item $cf::TICK	145	=item $cf::TICK
102		146
103	The interval between server ticks, in seconds.	147	The interval between server ticks, in seconds.
		148
		149	=item $cf::LOADAVG
		150
		151	The current CPU load on the server (alpha-smoothed), as a value between 0
		152	(none) and 1 (overloaded), indicating how much time is spent on processing
		153	objects per tick. Healthy values are < 0.5.
		154
		155	=item $cf::LOAD
		156
		157	The raw value load value from the last tick.
104		158
105	=item %cf::CFG	159	=item %cf::CFG
106		160
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	161	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	162	from wherever your confdir points to.
		163
		164	=item cf::wait_for_tick, cf::wait_for_tick_begin
		165
		166	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		167	returns directly I<after> the tick processing (and consequently, can only wake one process
		168	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		169
110	=back	170	=back
111		171
112	=cut	172	=cut
113		173
114	BEGIN {	174	BEGIN {
115	*CORE::GLOBAL::warn = sub {	175	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	176	my $msg = join "", @_;
117	utf8::encode $msg;
118		177
119	$msg .= "\n"	178	$msg .= "\n"
120	unless $msg =~ /\n$/;	179	unless $msg =~ /\n$/;
121		180
		181	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		182
		183	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	184	LOG llevError, $msg;
123	};	185	};
124	}	186	}
125		187
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	188	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	189	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	190	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	191	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	192	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		193	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	194	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		195
133	# we bless all objects into (empty) derived classes to force a method lookup	196	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	197	# within the Safe compartment.
135	for my $pkg (qw(	198	for my $pkg (qw(
136	cf::global cf::attachable	199	cf::global cf::attachable
…		…
145		208
146	$Event::DIED = sub {	209	$Event::DIED = sub {
147	warn "error in event callback: @_";	210	warn "error in event callback: @_";
148	};	211	};
149		212
150	my %ext_pkg;	213	#############################################################################
151	my @exts;
152	my @hook;
153		214
154	=head2 UTILITY FUNCTIONS	215	=head2 UTILITY FUNCTIONS
155		216
156	=over 4	217	=over 4
157		218
158	=cut	219	=item dumpval $ref
159		220
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	221	=cut
		222
		223	sub dumpval {
		224	eval {
		225	local $SIG{__DIE__};
		226	my $d;
		227	if (1) {
		228	$d = new Data::Dumper([$_[0]], ["*var"]);
		229	$d->Terse(1);
		230	$d->Indent(2);
		231	$d->Quotekeys(0);
		232	$d->Useqq(1);
		233	#$d->Bless(...);
		234	$d->Seen($_[1]) if @_ > 1;
		235	$d = $d->Dump();
		236	}
		237	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		238	$d
		239	} || "[unable to dump $_[0]: '$@']";
		240	}
		241
		242	use JSON::XS ();
161		243
162	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
163		245
164	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
165		247
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
174		249
175	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
176		251
177	=cut	252	=cut
178		253
179	sub to_json($) {	254	our $json_coder = JSON::XS->new->convert_blessed->utf8;
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
181	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	257	sub from_json ($) { $json_coder->decode ($_[0]) }
183		258
184	=item cf::lock_wait $string	259	=item cf::lock_wait $string
185		260
186	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
187		262
…		…
193	returned.	268	returned.
194		269
195	Lock names should begin with a unique identifier (for example, cf::map::find	270	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
197		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
198	=cut	277	=cut
199		278
200	our %LOCK;	279	our %LOCK;
201		280
202	sub lock_wait($) {	281	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
223	}	302	}
224	}	303	}
225		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
		309	}
		310
226	sub freeze_mainloop {	311	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
228		313
229	my $guard = Coro::guard { $TICK_WATCHER->start };	314	my $guard = Coro::guard {
		315	$TICK_WATCHER->start;
		316	};
230	$TICK_WATCHER->stop;	317	$TICK_WATCHER->stop;
231	$guard	318	$guard
232	}	319	}
233		320
		321	=item cf::async { BLOCK }
		322
		323	Currently the same as Coro::async_pool, meaning you cannot use
		324	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		325	thing you are allowed to do is call C<prio> on it.
		326
		327	=cut
		328
		329	BEGIN { *async = \&Coro::async_pool }
		330
234	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
235		332
236	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
237	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
239		337
240	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
241	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
242	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
243	fast or be very important.	341	fast or be very important.
…		…
246		344
247	sub sync_job(&) {	345	sub sync_job(&) {
248	my ($job) = @_;	346	my ($job) = @_;
249		347
250	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
251	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
253		353
254	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
255	# (but this is cancel-safe)	355	# (but this is cancel-safe)
256	my $freeze_guard = freeze_mainloop;	356	my $freeze_guard = freeze_mainloop;
257		357
258	my $busy = 1;	358	my $busy = 1;
259	my @res;	359	my @res;
260		360
261	(Coro::async_pool {	361	(async {
262	@res = eval { $job->() };	362	@res = eval { $job->() };
263	warn $@ if $@;	363	warn $@ if $@;
264	undef $busy;	364	undef $busy;
265	})->prio (Coro::PRIO_MAX);	365	})->prio (Coro::PRIO_MAX);
266		366
267	while ($busy) {	367	while ($busy) {
268	Coro::cede_notself;	368	Coro::cede or Event::one_event;
269	Event::one_event unless Coro::nready;
270	}	369	}
		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
271		377
272	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
273	} else {	379	} else {
274	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
275		381
276	$job->()	382	$job->()
277	}	383	}
278	}	384	}
279		385
280	=item $coro = cf::coro { BLOCK }	386	=item $coro = cf::async_ext { BLOCK }
281		387
282	Creates (and readies) and returns a new coro. This coro is automcatially	388	Like async, but this coro is automatically being canceled when the
283	being canceled when the extension calling this is being unloaded.	389	extension calling this is being unloaded.
284		390
285	=cut	391	=cut
286		392
287	sub coro(&) {	393	sub async_ext(&) {
288	my $cb = shift;	394	my $cb = shift;
289		395
290	my $coro = &Coro::async_pool ($cb);	396	my $coro = &Coro::async ($cb);
291		397
292	$coro->on_destroy (sub {	398	$coro->on_destroy (sub {
293	delete $EXT_CORO{$coro+0};	399	delete $EXT_CORO{$coro+0};
294	});	400	});
295	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
296		402
297	$coro	403	$coro
298	}	404	}
299		405
300	sub write_runtime {	406	=item fork_call { }, $args
301	my $runtime = cf::localdir . "/runtime";
302		407
303	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
304	or return;	409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
305		412
306	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	413	=cut
307	(aio_write $fh, 0, (length $value), $value, 0) <= 0
308	and return;
309		414
310	aio_fsync $fh	415	sub fork_call(&@) {
311	and return;	416	my ($cb, @args) = @_;
312		417
		418	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		419	# or die "socketpair: $!";
		420	pipe my $fh1, my $fh2
		421	or die "pipe: $!";
		422
		423	if (my $pid = fork) {
313	close $fh	424	close $fh2;
314	or return;
315		425
316	aio_rename "$runtime~", $runtime	426	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
317	and return;	427	$res = Coro::Storable::thaw $res;
318		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	die $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	eval {
		439	close $fh1;
		440
		441	my @res = eval { $cb->(@args) };
		442	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		443	};
		444
		445	warn $@ if $@;
		446	_exit 0;
319	1	447	}
		448	}
		449
		450	=item $value = cf::db_get $family => $key
		451
		452	Returns a single value from the environment database.
		453
		454	=item cf::db_put $family => $key => $value
		455
		456	Stores the given C<$value> in the family. It can currently store binary
		457	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		458
		459	=cut
		460
		461	our $DB;
		462
		463	sub db_init {
		464	unless ($DB) {
		465	$DB = BDB::db_create $DB_ENV;
		466
		467	cf::sync_job {
		468	eval {
		469	$DB->set_flags (BDB::CHKSUM);
		470
		471	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		472	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		473	cf::cleanup "db_open(db): $!" if $!;
		474	};
		475	cf::cleanup "db_open(db): $@" if $@;
		476	};
		477	}
		478	}
		479
		480	sub db_get($$) {
		481	my $key = "$_[0]/$_[1]";
		482
		483	cf::sync_job {
		484	BDB::db_get $DB, undef, $key, my $data;
		485
		486	$! ? ()
		487	: $data
		488	}
		489	}
		490
		491	sub db_put($$$) {
		492	BDB::dbreq_pri 4;
		493	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		494	}
		495
		496	=item cf::cache $id => [$paths...], $processversion => $process
		497
		498	Generic caching function that returns the value of the resource $id,
		499	caching and regenerating as required.
		500
		501	This function can block.
		502
		503	=cut
		504
		505	sub cache {
		506	my ($id, $src, $processversion, $process) = @_;
		507
		508	my $meta =
		509	join "\x00",
		510	$processversion,
		511	map {
		512	aio_stat $_
		513	and Carp::croak "$_: $!";
		514
		515	($_, (stat _)[7,9])
		516	} @$src;
		517
		518	my $dbmeta = db_get cache => "$id/meta";
		519	if ($dbmeta ne $meta) {
		520	# changed, we may need to process
		521
		522	my @data;
		523	my $md5;
		524
		525	for (0 .. $#$src) {
		526	0 <= aio_load $src->[$_], $data[$_]
		527	or Carp::croak "$src->[$_]: $!";
		528	}
		529
		530	# if processing is expensive, check
		531	# checksum first
		532	if (1) {
		533	$md5 =
		534	join "\x00",
		535	$processversion,
		536	map {
		537	Coro::cede;
		538	($src->[$_], Digest::MD5::md5_hex $data[$_])
		539	} 0.. $#$src;
		540
		541
		542	my $dbmd5 = db_get cache => "$id/md5";
		543	if ($dbmd5 eq $md5) {
		544	db_put cache => "$id/meta", $meta;
		545
		546	return db_get cache => "$id/data";
		547	}
		548	}
		549
		550	my $t1 = Time::HiRes::time;
		551	my $data = $process->(\@data);
		552	my $t2 = Time::HiRes::time;
		553
		554	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		555
		556	db_put cache => "$id/data", $data;
		557	db_put cache => "$id/md5" , $md5;
		558	db_put cache => "$id/meta", $meta;
		559
		560	return $data;
		561	}
		562
		563	db_get cache => "$id/data"
		564	}
		565
		566	=item cf::datalog type => key => value, ...
		567
		568	Log a datalog packet of the given type with the given key-value pairs.
		569
		570	=cut
		571
		572	sub datalog($@) {
		573	my ($type, %kv) = @_;
		574	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
320	}	575	}
321		576
322	=back	577	=back
323		578
324	=cut	579	=cut
325
326	#############################################################################
327
328	package cf::path;
329
330	sub new {
331	my ($class, $path, $base) = @_;
332
333	$path = $path->as_string if ref $path;
334
335	my $self = bless { }, $class;
336
337	# {... are special paths that are not touched
338	# ?xxx/... are special absolute paths
339	# ?random/... random maps
340	# /! non-realised random map exit
341	# /... normal maps
342	# ~/... per-player maps without a specific player (DO NOT USE)
343	# ~user/... per-player map of a specific user
344
345	if ($path =~ /^{/) {
346	# fine as it is
347	} elsif ($path =~ s{^\?random/}{}) {
348	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
349	$self->{random} = cf::from_json $data;
350	} else {
351	if ($path =~ s{^~([^/]+)?}{}) {
352	$self->{user_rel} = 1;
353
354	if (defined $1) {
355	$self->{user} = $1;
356	} elsif ($base =~ m{^~([^/]+)/}) {
357	$self->{user} = $1;
358	} else {
359	warn "cannot resolve user-relative path without user <$path,$base>\n";
360	}
361	} elsif ($path =~ /^\//) {
362	# already absolute
363	} else {
364	$base =~ s{[^/]+/?$}{};
365	return $class->new ("$base/$path");
366	}
367
368	for ($path) {
369	redo if s{/\.?/}{/};
370	redo if s{/[^/]+/\.\./}{/};
371	}
372	}
373
374	$self->{path} = $path;
375
376	$self
377	}
378
379	# the name / primary key / in-game path
380	sub as_string {
381	my ($self) = @_;
382
383	$self->{user_rel} ? "~$self->{user}$self->{path}"
384	: $self->{random} ? "?random/$self->{path}"
385	: $self->{path}
386	}
387
388	# the displayed name, this is a one way mapping
389	sub visible_name {
390	my ($self) = @_;
391
392	# if (my $rmp = $self->{random}) {
393	# # todo: be more intelligent about this
394	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
395	# } else {
396	$self->as_string
397	# }
398	}
399
400	# escape the /'s in the path
401	sub _escaped_path {
402	# ∕ is U+2215
403	(my $path = $_[0]{path}) =~ s/\//∕/g;
404	$path
405	}
406
407	# the original (read-only) location
408	sub load_path {
409	my ($self) = @_;
410
411	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
412	}
413
414	# the temporary/swap location
415	sub save_path {
416	my ($self) = @_;
417
418	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
419	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
420	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
421	}
422
423	# the unique path, might be eq to save_path
424	sub uniq_path {
425	my ($self) = @_;
426
427	$self->{user_rel} || $self->{random}
428	? undef
429	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
430	}
431
432	# return random map parameters, or undef
433	sub random_map_params {
434	my ($self) = @_;
435
436	$self->{random}
437	}
438
439	# this is somewhat ugly, but style maps do need special treatment
440	sub is_style_map {
441	$_[0]{path} =~ m{^/styles/}
442	}
443
444	package cf;
445		580
446	#############################################################################	581	#############################################################################
447		582
448	=head2 ATTACHABLE OBJECTS	583	=head2 ATTACHABLE OBJECTS
449		584
…		…
451	attach callbacks/event handlers (a collection of which is called an "attachment")	586	attach callbacks/event handlers (a collection of which is called an "attachment")
452	to it. All such attachable objects support the following methods.	587	to it. All such attachable objects support the following methods.
453		588
454	In the following description, CLASS can be any of C<global>, C<object>	589	In the following description, CLASS can be any of C<global>, C<object>
455	C<player>, C<client> or C<map> (i.e. the attachable objects in	590	C<player>, C<client> or C<map> (i.e. the attachable objects in
456	crossfire+).	591	Crossfire TRT).
457		592
458	=over 4	593	=over 4
459		594
460	=item $attachable->attach ($attachment, key => $value...)	595	=item $attachable->attach ($attachment, key => $value...)
461		596
…		…
575	our @CB_TYPE = (); # registry for type (cf-object class) based events	710	our @CB_TYPE = (); # registry for type (cf-object class) based events
576	our @CB_MAP = ();	711	our @CB_MAP = ();
577		712
578	my %attachment;	713	my %attachment;
579		714
		715	sub cf::attachable::thawer_merge {
		716	# simply override everything except _meta
		717	local $_[0]{_meta};
		718	%{$_[0]} = %{$_[1]};
		719	}
		720
580	sub _attach_cb($$$$) {	721	sub _attach_cb($$$$) {
581	my ($registry, $event, $prio, $cb) = @_;	722	my ($registry, $event, $prio, $cb) = @_;
582		723
583	use sort 'stable';	724	use sort 'stable';
584		725
…		…
618	$registry = $CB_TYPE[$object_type] ||= [];	759	$registry = $CB_TYPE[$object_type] ||= [];
619		760
620	} elsif ($type eq "subtype") {	761	} elsif ($type eq "subtype") {
621	defined $object_type or Carp::croak "subtype specified without type";	762	defined $object_type or Carp::croak "subtype specified without type";
622	my $object_subtype = shift @arg;	763	my $object_subtype = shift @arg;
623	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	764	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
624		765
625	} elsif ($type eq "package") {	766	} elsif ($type eq "package") {
626	my $pkg = shift @arg;	767	my $pkg = shift @arg;
627		768
628	while (my ($name, $id) = each %cb_id) {	769	while (my ($name, $id) = each %cb_id) {
…		…
657	_attach $registry, $klass, @attach;	798	_attach $registry, $klass, @attach;
658	}	799	}
659		800
660	$obj->{$name} = \%arg;	801	$obj->{$name} = \%arg;
661	} else {	802	} else {
662	warn "object uses attachment '$name' that is not available, postponing.\n";	803	warn "object uses attachment '$name' which is not available, postponing.\n";
663	}	804	}
664		805
665	$obj->{_attachment}{$name} = undef;	806	$obj->{_attachment}{$name} = undef;
666	}	807	}
667		808
…		…
669	if (ref $_[0]) {	810	if (ref $_[0]) {
670	_object_attach @_;	811	_object_attach @_;
671	} else {	812	} else {
672	_attach shift->_attach_registry, @_;	813	_attach shift->_attach_registry, @_;
673	}	814	}
		815	_recalc_want;
674	};	816	};
675		817
676	# all those should be optimised	818	# all those should be optimised
677	sub cf::attachable::detach {	819	sub cf::attachable::detach {
678	my ($obj, $name) = @_;	820	my ($obj, $name) = @_;
…		…
681	delete $obj->{_attachment}{$name};	823	delete $obj->{_attachment}{$name};
682	reattach ($obj);	824	reattach ($obj);
683	} else {	825	} else {
684	Carp::croak "cannot, currently, detach class attachments";	826	Carp::croak "cannot, currently, detach class attachments";
685	}	827	}
		828	_recalc_want;
686	};	829	};
687		830
688	sub cf::attachable::attached {	831	sub cf::attachable::attached {
689	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
690		833
…		…
755	# object support	898	# object support
756		899
757	sub reattach {	900	sub reattach {
758	# basically do the same as instantiate, without calling instantiate	901	# basically do the same as instantiate, without calling instantiate
759	my ($obj) = @_;	902	my ($obj) = @_;
		903
		904	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
760		905
761	my $registry = $obj->registry;	906	my $registry = $obj->registry;
762		907
763	@$registry = ();	908	@$registry = ();
764		909
…		…
811	$filename, length $$rdata, scalar @$objs;	956	$filename, length $$rdata, scalar @$objs;
812		957
813	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	958	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
814	chmod SAVE_MODE, $fh;	959	chmod SAVE_MODE, $fh;
815	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	960	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
816	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
817	close $fh;	962	close $fh;
818		963
819	if (@$objs) {	964	if (@$objs) {
820	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	965	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
821	chmod SAVE_MODE, $fh;	966	chmod SAVE_MODE, $fh;
822	my $data = Storable::nfreeze { version => 1, objs => $objs };	967	my $data = Storable::nfreeze { version => 1, objs => $objs };
823	aio_write $fh, 0, (length $data), $data, 0;	968	aio_write $fh, 0, (length $data), $data, 0;
824	aio_fsync $fh;	969	aio_fsync $fh if $cf::USE_FSYNC;
825	close $fh;	970	close $fh;
826	aio_rename "$filename.pst~", "$filename.pst";	971	aio_rename "$filename.pst~", "$filename.pst";
827	}	972	}
828	} else {	973	} else {
829	aio_unlink "$filename.pst";	974	aio_unlink "$filename.pst";
…		…
861	or return;	1006	or return;
862	$av = eval { (Storable::thaw $av)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
863	}	1008	}
864		1009
865	warn sprintf "loading %s (%d)\n",	1010	warn sprintf "loading %s (%d)\n",
866	$filename, length $data, scalar @{$av || []};#d#	1011	$filename, length $data, scalar @{$av || []};
867	return ($data, $av);	1012	return ($data, $av);
868	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
869		1020
870	#############################################################################	1021	#############################################################################
871	# command handling &c	1022	# command handling &c
872		1023
873	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
886	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
887	}	1038	}
888		1039
889	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
890		1041
891	Register a callbackf ro execution when the client sends an extcmd packet.	1042	Register a callback for execution when the client sends an (synchronous)
		1043	extcmd packet. Ext commands will be processed in the order they are
		1044	received by the server, like other user commands. The first argument is
		1045	the logged-in player. Ext commands can only be processed after a player
		1046	has logged in successfully.
892		1047
893	If the callback returns something, it is sent back as if reply was being	1048	If the callback returns something, it is sent back as if reply was being
894	called.	1049	called.
895		1050
		1051	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1052
		1053	Register a callback for execution when the client sends an (asynchronous)
		1054	exticmd packet. Exti commands are processed by the server as soon as they
		1055	are received, i.e. out of order w.r.t. other commands. The first argument
		1056	is a client socket. Exti commands can be received anytime, even before
		1057	log-in.
		1058
		1059	If the callback returns something, it is sent back as if reply was being
		1060	called.
		1061
896	=cut	1062	=cut
897		1063
898	sub register_extcmd {	1064	sub register_extcmd {
899	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
900		1066
901	my $caller = caller;
902	#warn "registering extcmd '$name' to '$caller'";
903
904	$EXTCMD{$name} = [$cb, $caller];	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
905	}	1074	}
906		1075
907	cf::player->attach (	1076	cf::player->attach (
908	on_command => sub {	1077	on_command => sub {
909	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
922		1091
923	my $msg = eval { from_json $buf };	1092	my $msg = eval { from_json $buf };
924		1093
925	if (ref $msg) {	1094	if (ref $msg) {
926	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1095	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
927	if (my %reply = $cb->[0]->($pl, $msg)) {	1096	if (my %reply = $cb->($pl, $msg)) {
928	$pl->ext_reply ($msg->{msgid}, %reply);	1097	$pl->ext_reply ($msg->{msgid}, %reply);
929	}	1098	}
930	}	1099	}
931	} else {	1100	} else {
932	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1101	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
934		1103
935	cf::override;	1104	cf::override;
936	},	1105	},
937	);	1106	);
938		1107
939	sub register {
940	my ($base, $pkg) = @_;
941
942	#TODO
943	}
944
945	sub load_extension {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
		1112	for my $path (<$LIBDIR/*.ext>) {
		1113	next unless -r $path;
		1114
		1115	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1116	my $base = $1;
		1117	my $pkg = $1;
		1118	$pkg =~ s/[^[:word:]]/_/g;
		1119	$pkg = "ext::$pkg";
		1120
		1121	open my $fh, "<:utf8", $path
		1122	or die "$path: $!";
		1123
		1124	my $source = do { local $/; <$fh> };
		1125
		1126	my %ext = (
		1127	path => $path,
		1128	base => $base,
		1129	pkg => $pkg,
		1130	);
		1131
		1132	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1133	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1134
		1135	$ext{source} =
		1136	"package $pkg; use strict; use utf8;\n"
		1137	. "#line 1 \"$path\"\n{\n"
		1138	. $source
		1139	. "\n};\n1";
		1140
		1141	$todo{$base} = \%ext;
		1142	}
		1143
		1144	my %done;
		1145	while (%todo) {
		1146	my $progress;
		1147
		1148	while (my ($k, $v) = each %todo) {
		1149	for (split /,\s*/, $v->{meta}{depends}) {
		1150	goto skip
		1151	unless exists $done{$_};
		1152	}
		1153
		1154	warn "... loading '$k' into '$v->{pkg}'\n";
		1155
		1156	unless (eval $v->{source}) {
		1157	my $msg = $@ ? "$v->{path}: $@\n"
		1158	: "$v->{base}: extension inactive.\n";
		1159
		1160	if (exists $v->{meta}{mandatory}) {
		1161	warn $msg;
		1162	warn "mandatory extension failed to load, exiting.\n";
		1163	exit 1;
		1164	}
		1165
		1166	warn $msg;
		1167	}
		1168
		1169	$done{$k} = delete $todo{$k};
		1170	push @EXTS, $v->{pkg};
		1171	$progress = 1;
		1172	}
		1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
		1178	};
		1179	}
		1180
		1181	#############################################################################
		1182
		1183	=back
		1184
		1185	=head2 CORE EXTENSIONS
		1186
		1187	Functions and methods that extend core crossfire objects.
		1188
		1189	=cut
		1190
		1191	package cf::player;
		1192
		1193	use Coro::AIO;
		1194
		1195	=head3 cf::player
		1196
		1197	=over 4
		1198
		1199	=item cf::player::find $login
		1200
		1201	Returns the given player object, loading it if necessary (might block).
		1202
		1203	=cut
		1204
		1205	sub playerdir($) {
		1206	"$PLAYERDIR/"
		1207	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1208	}
		1209
		1210	sub path($) {
		1211	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1212
		1213	(playerdir $login) . "/playerdata"
		1214	}
		1215
		1216	sub find_active($) {
		1217	$cf::PLAYER{$_[0]}
		1218	and $cf::PLAYER{$_[0]}->active
		1219	and $cf::PLAYER{$_[0]}
		1220	}
		1221
		1222	sub exists($) {
		1223	my ($login) = @_;
		1224
		1225	$cf::PLAYER{$login}
		1226	or cf::sync_job { !aio_stat path $login }
		1227	}
		1228
		1229	sub find($) {
		1230	return $cf::PLAYER{$_[0]} || do {
		1231	my $login = $_[0];
		1232
		1233	my $guard = cf::lock_acquire "user_find:$login";
		1234
		1235	$cf::PLAYER{$_[0]} || do {
		1236	# rename old playerfiles to new ones
		1237	#TODO: remove when no longer required
		1238	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1239	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1240	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1241	aio_unlink +(playerdir $login) . "/$login.pl";
		1242
		1243	my $pl = load_pl path $login
		1244	or return;
		1245	$cf::PLAYER{$login} = $pl
		1246	}
		1247	}
		1248	}
		1249
		1250	sub save($) {
		1251	my ($pl) = @_;
		1252
		1253	return if $pl->{deny_save};
		1254
		1255	my $path = path $pl;
		1256	my $guard = cf::lock_acquire "user_save:$path";
		1257
		1258	return if $pl->{deny_save};
		1259
		1260	aio_mkdir playerdir $pl, 0770;
		1261	$pl->{last_save} = $cf::RUNTIME;
		1262
		1263	$pl->save_pl ($path);
		1264	Coro::cede;
		1265	}
		1266
		1267	sub new($) {
		1268	my ($login) = @_;
		1269
		1270	my $self = create;
		1271
		1272	$self->ob->name ($login);
		1273	$self->{deny_save} = 1;
		1274
		1275	$cf::PLAYER{$login} = $self;
		1276
		1277	$self
		1278	}
		1279
		1280	=item $pl->quit_character
		1281
		1282	Nukes the player without looking back. If logged in, the connection will
		1283	be destroyed. May block for a long time.
		1284
		1285	=cut
		1286
		1287	sub quit_character {
		1288	my ($pl) = @_;
		1289
		1290	my $name = $pl->ob->name;
		1291
		1292	$pl->{deny_save} = 1;
		1293	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1294
		1295	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1296	$pl->deactivate;
		1297	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1298	$pl->ns->destroy if $pl->ns;
		1299
		1300	my $path = playerdir $pl;
		1301	my $temp = "$path~$cf::RUNTIME~deleting~";
		1302	aio_rename $path, $temp;
		1303	delete $cf::PLAYER{$pl->ob->name};
		1304	$pl->destroy;
		1305
		1306	my $prefix = qr<^~\Q$name\E/>;
		1307
		1308	# nuke player maps
		1309	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1310
		1311	IO::AIO::aio_rmtree $temp;
		1312	}
		1313
		1314	=item $pl->kick
		1315
		1316	Kicks a player out of the game. This destroys the connection.
		1317
		1318	=cut
		1319
		1320	sub kick {
		1321	my ($pl, $kicker) = @_;
		1322
		1323	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1324	$pl->killer ("kicked");
		1325	$pl->ns->destroy;
		1326	}
		1327
		1328	=item cf::player::list_logins
		1329
		1330	Returns am arrayref of all valid playernames in the system, can take a
		1331	while and may block, so not sync_job-capable, ever.
		1332
		1333	=cut
		1334
		1335	sub list_logins {
		1336	my $dirs = aio_readdir $PLAYERDIR
		1337	or return [];
		1338
		1339	my @logins;
		1340
		1341	for my $login (@$dirs) {
		1342	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1343	aio_read $fh, 0, 512, my $buf, 0 or next;
		1344	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1345
		1346	utf8::decode $login;
		1347	push @logins, $login;
		1348	}
		1349
		1350	\@logins
		1351	}
		1352
		1353	=item $player->maps
		1354
		1355	Returns an arrayref of map paths that are private for this
		1356	player. May block.
		1357
		1358	=cut
		1359
		1360	sub maps($) {
		1361	my ($pl) = @_;
		1362
		1363	$pl = ref $pl ? $pl->ob->name : $pl;
		1364
		1365	my $files = aio_readdir playerdir $pl
		1366	or return;
		1367
		1368	my @paths;
		1369
		1370	for (@$files) {
		1371	utf8::decode $_;
		1372	next if /\.(?:pl|pst)$/;
		1373	next unless /^$PATH_SEP/o;
		1374
		1375	push @paths, cf::map::normalise "~$pl/$_";
		1376	}
		1377
		1378	\@paths
		1379	}
		1380
		1381	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1382
		1383	Expand crossfire pod fragments into protocol xml.
		1384
		1385	=cut
		1386
		1387	sub expand_cfpod {
		1388	((my $self), (local $_)) = @_;
		1389
		1390	# escape & and <
		1391	s/&/&amp;/g;
		1392	s/(?<![BIUGH])</&lt;/g;
		1393
		1394	# this is buggy, it needs to properly take care of nested <'s
		1395
		1396	1 while
		1397	# replace B<>, I<>, U<> etc.
		1398	s/B<([^\>]*)>/<b>$1<\/b>/
		1399	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1400	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1401	# replace G<male|female> tags
		1402	|| s{G<([^>|]*)\|([^>]*)>}{
		1403	$self->gender ? $2 : $1
		1404	}ge
		1405	# replace H<hint text>
		1406	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1407
		1408	# create single paragraphs (very hackish)
		1409	s/(?<=\S)\n(?=\w)/ /g;
		1410
		1411	$_
		1412	}
		1413
		1414	=item $player->ext_reply ($msgid, %msg)
		1415
		1416	Sends an ext reply to the player.
		1417
		1418	=cut
		1419
		1420	sub ext_reply($$%) {
		1421	my ($self, $id, %msg) = @_;
		1422
		1423	$msg{msgid} = $id;
		1424	$self->send ("ext " . cf::to_json \%msg);
		1425	}
		1426
		1427	=item $player->ext_event ($type, %msg)
		1428
		1429	Sends an ext event to the client.
		1430
		1431	=cut
		1432
		1433	sub ext_event($$%) {
		1434	my ($self, $type, %msg) = @_;
		1435
		1436	$self->ns->ext_event ($type, %msg);
		1437	}
		1438
		1439	=head3 cf::region
		1440
		1441	=over 4
		1442
		1443	=cut
		1444
		1445	package cf::region;
		1446
		1447	=item cf::region::find_by_path $path
		1448
		1449	Tries to decuce the likely region for a map knowing only its path.
		1450
		1451	=cut
		1452
		1453	sub find_by_path($) {
946	my ($path) = @_;	1454	my ($path) = @_;
947		1455
948	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1456	my ($match, $specificity);
949	my $base = $1;
950	my $pkg = $1;
951	$pkg =~ s/[^[:word:]]/_/g;
952	$pkg = "ext::$pkg";
953		1457
954	warn "loading '$path' into '$pkg'\n";	1458	for my $region (list) {
955		1459	if ($region->match && $path =~ $region->match) {
956	open my $fh, "<:utf8", $path	1460	($match, $specificity) = ($region, $region->specificity)
957	or die "$path: $!";	1461	if $region->specificity > $specificity;
958		1462	}
959	my $source =
960	"package $pkg; use strict; use utf8;\n"
961	. "#line 1 \"$path\"\n{\n"
962	. (do { local $/; <$fh> })
963	. "\n};\n1";
964
965	eval $source
966	or die $@ ? "$path: $@\n"
967	: "extension disabled.\n";
968
969	push @exts, $pkg;
970	$ext_pkg{$base} = $pkg;
971
972	# no strict 'refs';
973	# @{"$pkg\::ISA"} = ext::;
974
975	register $base, $pkg;
976	}
977
978	sub unload_extension {
979	my ($pkg) = @_;
980
981	warn "removing extension $pkg\n";
982
983	# remove hooks
984	#TODO
985	# for my $idx (0 .. $#PLUGIN_EVENT) {
986	# delete $hook[$idx]{$pkg};
987	# }	1463	}
988		1464
989	# remove commands	1465	$match
990	for my $name (keys %COMMAND) {
991	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
992
993	if (@cb) {
994	$COMMAND{$name} = \@cb;
995	} else {
996	delete $COMMAND{$name};
997	}
998	}
999
1000	# remove extcmds
1001	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1002	delete $EXTCMD{$name};
1003	}
1004
1005	if (my $cb = $pkg->can ("unload")) {
1006	eval {
1007	$cb->($pkg);
1008	1
1009	} or warn "$pkg unloaded, but with errors: $@";
1010	}
1011
1012	Symbol::delete_package $pkg;
1013	}
1014
1015	sub load_extensions {
1016	for my $ext (<$LIBDIR/*.ext>) {
1017	next unless -r $ext;
1018	eval {
1019	load_extension $ext;
1020	1
1021	} or warn "$ext not loaded: $@";
1022	}
1023	}
1024
1025	#############################################################################
1026	# load/save/clean perl data associated with a map
1027
1028	*cf::mapsupport::on_clean = sub {
1029	my ($map) = @_;
1030
1031	my $path = $map->tmpname;
1032	defined $path or return;
1033
1034	unlink "$path.pst";
1035	};
1036
1037	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1038
1039	#############################################################################
1040	# load/save perl data associated with player->ob objects
1041
1042	sub all_objects(@) {
1043	@_, map all_objects ($_->inv), @_
1044	}
1045
1046	# TODO: compatibility cruft, remove when no longer needed
1047	cf::player->attach (
1048	on_load => sub {
1049	my ($pl, $path) = @_;
1050
1051	for my $o (all_objects $pl->ob) {
1052	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1053	$o->set_ob_key_value ("_perl_data");
1054
1055	%$o = %{ Storable::thaw pack "H*", $value };
1056	}
1057	}
1058	},
1059	);
1060
1061	#############################################################################
1062
1063	=head2 CORE EXTENSIONS
1064
1065	Functions and methods that extend core crossfire objects.
1066
1067	=head3 cf::player
1068
1069	=over 4
1070
1071	=item cf::player::exists $login
1072
1073	Returns true when the given account exists.
1074
1075	=cut
1076
1077	sub cf::player::exists($) {
1078	cf::player::find $_[0]
1079	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1080	}
1081
1082	=item $player->ext_reply ($msgid, $msgtype, %msg)
1083
1084	Sends an ext reply to the player.
1085
1086	=cut
1087
1088	sub cf::player::ext_reply($$$%) {
1089	my ($self, $id, %msg) = @_;
1090
1091	$msg{msgid} = $id;
1092
1093	$self->send ("ext " . to_json \%msg);
1094	}	1466	}
1095		1467
1096	=back	1468	=back
1097
1098		1469
1099	=head3 cf::map	1470	=head3 cf::map
1100		1471
1101	=over 4	1472	=over 4
1102		1473
…		…
1105	package cf::map;	1476	package cf::map;
1106		1477
1107	use Fcntl;	1478	use Fcntl;
1108	use Coro::AIO;	1479	use Coro::AIO;
1109		1480
		1481	use overload
		1482	'""' => \&as_string,
		1483	fallback => 1;
		1484
1110	our $MAX_RESET = 3600;	1485	our $MAX_RESET = 3600;
1111	our $DEFAULT_RESET = 3000;	1486	our $DEFAULT_RESET = 3000;
1112		1487
1113	sub generate_random_map {	1488	sub generate_random_map {
1114	my ($path, $rmp) = @_;	1489	my ($self, $rmp) = @_;
1115
1116	# mit "rum" bekleckern, nicht	1490	# mit "rum" bekleckern, nicht
1117	cf::map::_create_random_map	1491	$self->_create_random_map (
1118	$path,
1119	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1492	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1120	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1493	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1121	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1494	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1122	$rmp->{exit_on_final_map},	1495	$rmp->{exit_on_final_map},
1123	$rmp->{xsize}, $rmp->{ysize},	1496	$rmp->{xsize}, $rmp->{ysize},
1124	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1497	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1125	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1498	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1126	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1499	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1127	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1500	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1128	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1501	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1129	(cf::region::find $rmp->{region})	1502	(cf::region::find $rmp->{region}), $rmp->{custom}
		1503	)
		1504	}
		1505
		1506	=item cf::map->register ($regex, $prio)
		1507
		1508	Register a handler for the map path matching the given regex at the
		1509	givne priority (higher is better, built-in handlers have priority 0, the
		1510	default).
		1511
		1512	=cut
		1513
		1514	sub register {
		1515	my (undef, $regex, $prio) = @_;
		1516	my $pkg = caller;
		1517
		1518	no strict;
		1519	push @{"$pkg\::ISA"}, __PACKAGE__;
		1520
		1521	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1522	}
		1523
		1524	# also paths starting with '/'
		1525	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1526
		1527	sub thawer_merge {
		1528	my ($self, $merge) = @_;
		1529
		1530	# we have to keep some variables in memory intact
		1531	local $self->{path};
		1532	local $self->{load_path};
		1533
		1534	$self->SUPER::thawer_merge ($merge);
		1535	}
		1536
		1537	sub normalise {
		1538	my ($path, $base) = @_;
		1539
		1540	$path = "$path"; # make sure its a string
		1541
		1542	$path =~ s/\.map$//;
		1543
		1544	# map plan:
		1545	#
		1546	# /! non-realised random map exit (special hack!)
		1547	# {... are special paths that are not being touched
		1548	# ?xxx/... are special absolute paths
		1549	# ?random/... random maps
		1550	# /... normal maps
		1551	# ~user/... per-player map of a specific user
		1552
		1553	$path =~ s/$PATH_SEP/\//go;
		1554
		1555	# treat it as relative path if it starts with
		1556	# something that looks reasonable
		1557	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1558	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1559
		1560	$base =~ s{[^/]+/?$}{};
		1561	$path = "$base/$path";
		1562	}
		1563
		1564	for ($path) {
		1565	redo if s{//}{/};
		1566	redo if s{/\.?/}{/};
		1567	redo if s{/[^/]+/\.\./}{/};
		1568	}
		1569
		1570	$path
		1571	}
		1572
		1573	sub new_from_path {
		1574	my (undef, $path, $base) = @_;
		1575
		1576	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1577
		1578	$path = normalise $path, $base;
		1579
		1580	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1581	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1582	my $self = bless cf::map::new, $pkg;
		1583	$self->{path} = $path; $self->path ($path);
		1584	$self->init; # pass $1 etc.
		1585	return $self;
		1586	}
		1587	}
		1588
		1589	Carp::carp "unable to resolve path '$path' (base '$base').";
		1590	()
		1591	}
		1592
		1593	sub init {
		1594	my ($self) = @_;
		1595
		1596	$self
		1597	}
		1598
		1599	sub as_string {
		1600	my ($self) = @_;
		1601
		1602	"$self->{path}"
		1603	}
		1604
		1605	# the displayed name, this is a one way mapping
		1606	sub visible_name {
		1607	&as_string
		1608	}
		1609
		1610	# the original (read-only) location
		1611	sub load_path {
		1612	my ($self) = @_;
		1613
		1614	"$MAPDIR/$self->{path}.map"
		1615	}
		1616
		1617	# the temporary/swap location
		1618	sub save_path {
		1619	my ($self) = @_;
		1620
		1621	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1622	"$TMPDIR/$path.map"
		1623	}
		1624
		1625	# the unique path, undef == no special unique path
		1626	sub uniq_path {
		1627	my ($self) = @_;
		1628
		1629	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1630	"$UNIQUEDIR/$path"
1130	}	1631	}
1131		1632
1132	# and all this just because we cannot iterate over	1633	# and all this just because we cannot iterate over
1133	# all maps in C++...	1634	# all maps in C++...
1134	sub change_all_map_light {	1635	sub change_all_map_light {
…		…
1136		1637
1137	$_->change_map_light ($change)	1638	$_->change_map_light ($change)
1138	for grep $_->outdoor, values %cf::MAP;	1639	for grep $_->outdoor, values %cf::MAP;
1139	}	1640	}
1140		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
		1648	}
		1649
		1650	sub unlink_save {
		1651	my ($self) = @_;
		1652
		1653	utf8::encode (my $save = $self->save_path);
		1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1655	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1656	}
		1657
1141	sub try_load_header($) {	1658	sub load_header_from($) {
1142	my ($path) = @_;	1659	my ($self, $path) = @_;
1143		1660
1144	utf8::encode $path;	1661	utf8::encode $path;
1145	aio_open $path, O_RDONLY, 0	1662	#aio_open $path, O_RDONLY, 0
		1663	# or return;
		1664
		1665	$self->_load_header ($path)
1146	or return;	1666	or return;
1147		1667
1148	my $map = cf::map::new	1668	$self->{load_path} = $path;
		1669
		1670	1
		1671	}
		1672
		1673	sub load_header_orig {
		1674	my ($self) = @_;
		1675
		1676	$self->load_header_from ($self->load_path)
		1677	}
		1678
		1679	sub load_header_temp {
		1680	my ($self) = @_;
		1681
		1682	$self->load_header_from ($self->save_path)
		1683	}
		1684
		1685	sub prepare_temp {
		1686	my ($self) = @_;
		1687
		1688	$self->last_access ((delete $self->{last_access})
		1689	|| $cf::RUNTIME); #d#
		1690	# safety
		1691	$self->{instantiate_time} = $cf::RUNTIME
		1692	if $self->{instantiate_time} > $cf::RUNTIME;
		1693	}
		1694
		1695	sub prepare_orig {
		1696	my ($self) = @_;
		1697
		1698	$self->{load_original} = 1;
		1699	$self->{instantiate_time} = $cf::RUNTIME;
		1700	$self->last_access ($cf::RUNTIME);
		1701	$self->instantiate;
		1702	}
		1703
		1704	sub load_header {
		1705	my ($self) = @_;
		1706
		1707	if ($self->load_header_temp) {
		1708	$self->prepare_temp;
		1709	} else {
		1710	$self->load_header_orig
1149	or return;	1711	or return;
		1712	$self->prepare_orig;
		1713	}
1150		1714
1151	# for better error messages only, will be overwritten	1715	$self->{deny_reset} = 1
1152	$map->path ($path);	1716	if $self->no_reset;
1153		1717
1154	$map->load_header ($path)	1718	$self->default_region (cf::region::find_by_path $self->{path})
1155	or return;	1719	unless $self->default_region;
1156		1720
1157	$map->{load_path} = $path;	1721	1
1158
1159	$map
1160	}	1722	}
1161		1723
1162	sub find;	1724	sub find;
1163	sub find {	1725	sub find {
1164	my ($path, $origin) = @_;	1726	my ($path, $origin) = @_;
1165		1727
1166	#warn "find<$path,$origin>\n";#d#
1167
1168	$path = new cf::path $path, $origin && $origin->path;	1728	$path = normalise $path, $origin && $origin->path;
1169	my $key = $path->as_string;
1170		1729
1171	cf::lock_wait "map_find:$key";	1730	cf::lock_wait "map_find:$path";
1172		1731
1173	$cf::MAP{$key} || do {	1732	$cf::MAP{$path} || do {
1174	my $guard = cf::lock_acquire "map_find:$key";	1733	my $guard = cf::lock_acquire "map_find:$path";
1175		1734	my $map = new_from_path cf::map $path
1176	# do it the slow way
1177	my $map = try_load_header $path->save_path;
1178
1179	Coro::cede;
1180
1181	if ($map) {
1182	$map->last_access ((delete $map->{last_access})
1183	|| $cf::RUNTIME); #d#
1184	# safety
1185	$map->{instantiate_time} = $cf::RUNTIME
1186	if $map->{instantiate_time} > $cf::RUNTIME;
1187	} else {
1188	if (my $rmp = $path->random_map_params) {
1189	$map = generate_random_map $key, $rmp;
1190	} else {
1191	$map = try_load_header $path->load_path;
1192	}
1193
1194	$map or return;	1735	or return;
1195		1736
1196	$map->{load_original} = 1;
1197	$map->{instantiate_time} = $cf::RUNTIME;
1198	$map->last_access ($cf::RUNTIME);
1199	$map->instantiate;
1200
1201	# per-player maps become, after loading, normal maps
1202	$map->per_player (0) if $path->{user_rel};
1203	}
1204
1205	$map->path ($key);
1206	$map->{path} = $path;
1207	$map->{last_save} = $cf::RUNTIME;	1737	$map->{last_save} = $cf::RUNTIME;
1208		1738
1209	Coro::cede;	1739	$map->load_header
		1740	or return;
1210		1741
1211	if ($map->should_reset) {	1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1743	# doing this can freeze the server in a sync job, obviously
		1744	#$cf::WAIT_FOR_TICK->wait;
1212	$map->reset;	1745	$map->reset;
1213	undef $guard;	1746	undef $guard;
1214	$map = find $path	1747	return find $path;
1215	or return;
1216	}	1748	}
1217		1749
1218	$cf::MAP{$key} = $map	1750	$cf::MAP{$path} = $map
1219	}	1751	}
1220	}	1752	}
		1753
		1754	sub pre_load { }
		1755	sub post_load { }
1221		1756
1222	sub load {	1757	sub load {
1223	my ($self) = @_;	1758	my ($self) = @_;
1224		1759
		1760	local $self->{deny_reset} = 1; # loading can take a long time
		1761
1225	my $path = $self->{path};	1762	my $path = $self->{path};
		1763
		1764	{
1226	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1765	my $guard = cf::lock_acquire "map_load:$path";
1227		1766
1228	return if $self->in_memory != cf::MAP_SWAPPED;	1767	return if $self->in_memory != cf::MAP_SWAPPED;
1229		1768
1230	$self->in_memory (cf::MAP_LOADING);	1769	$self->in_memory (cf::MAP_LOADING);
1231		1770
1232	$self->alloc;	1771	$self->alloc;
		1772
		1773	$self->pre_load;
		1774	Coro::cede;
		1775
1233	$self->load_objects ($self->{load_path}, 1)	1776	$self->_load_objects ($self->{load_path}, 1)
1234	or return;	1777	or return;
1235		1778
1236	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1779	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1237	if delete $self->{load_original};	1780	if delete $self->{load_original};
1238		1781
1239	if (my $uniq = $path->uniq_path) {	1782	if (my $uniq = $self->uniq_path) {
1240	utf8::encode $uniq;	1783	utf8::encode $uniq;
1241	if (aio_open $uniq, O_RDONLY, 0) {	1784	if (aio_open $uniq, O_RDONLY, 0) {
1242	$self->clear_unique_items;	1785	$self->clear_unique_items;
1243	$self->load_objects ($uniq, 0);	1786	$self->_load_objects ($uniq, 0);
1244	}	1787	}
1245	}	1788	}
1246		1789
1247	Coro::cede;	1790	Coro::cede;
1248
1249	# now do the right thing for maps	1791	# now do the right thing for maps
1250	$self->link_multipart_objects;	1792	$self->link_multipart_objects;
1251
1252	if ($self->{path}->is_style_map) {
1253	$self->{deny_save} = 1;
1254	$self->{deny_reset} = 1;
1255	} else {
1256	$self->fix_auto_apply;
1257	$self->decay_objects;
1258	$self->update_buttons;
1259	$self->set_darkness_map;
1260	$self->difficulty ($self->estimate_difficulty)	1793	$self->difficulty ($self->estimate_difficulty)
1261	unless $self->difficulty;	1794	unless $self->difficulty;
		1795	Coro::cede;
		1796
		1797	unless ($self->{deny_activate}) {
		1798	$self->decay_objects;
		1799	$self->fix_auto_apply;
		1800	$self->update_buttons;
		1801	Coro::cede;
		1802	$self->set_darkness_map;
		1803	Coro::cede;
1262	$self->activate;	1804	$self->activate;
1263	}	1805	}
1264		1806
1265	Coro::cede;
1266
1267	$self->in_memory (cf::MAP_IN_MEMORY);	1807	$self->in_memory (cf::MAP_IN_MEMORY);
		1808	}
		1809
		1810	$self->post_load;
		1811	}
		1812
		1813	sub customise_for {
		1814	my ($self, $ob) = @_;
		1815
		1816	return find "~" . $ob->name . "/" . $self->{path}
		1817	if $self->per_player;
		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
		1821
		1822	$self
		1823	}
		1824
		1825	# find and load all maps in the 3x3 area around a map
		1826	sub load_diag {
		1827	my ($map) = @_;
		1828
		1829	my @diag; # diagonal neighbours
		1830
		1831	for (0 .. 3) {
		1832	my $neigh = $map->tile_path ($_)
		1833	or next;
		1834	$neigh = find $neigh, $map
		1835	or next;
		1836	$neigh->load;
		1837
		1838	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1839	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1840	}
		1841
		1842	for (@diag) {
		1843	my $neigh = find @$_
		1844	or next;
		1845	$neigh->load;
		1846	}
1268	}	1847	}
1269		1848
1270	sub find_sync {	1849	sub find_sync {
1271	my ($path, $origin) = @_;	1850	my ($path, $origin) = @_;
1272		1851
1273	cf::sync_job { cf::map::find $path, $origin }	1852	cf::sync_job { find $path, $origin }
1274	}	1853	}
1275		1854
1276	sub do_load_sync {	1855	sub do_load_sync {
1277	my ($map) = @_;	1856	my ($map) = @_;
1278		1857
1279	cf::sync_job { $map->load };	1858	cf::sync_job { $map->load };
1280	}	1859	}
1281		1860
		1861	our %MAP_PREFETCH;
		1862	our $MAP_PREFETCHER = undef;
		1863
		1864	sub find_async {
		1865	my ($path, $origin) = @_;
		1866
		1867	$path = normalise $path, $origin && $origin->{path};
		1868
		1869	if (my $map = $cf::MAP{$path}) {
		1870	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1871	}
		1872
		1873	undef $MAP_PREFETCH{$path};
		1874	$MAP_PREFETCHER ||= cf::async {
		1875	while (%MAP_PREFETCH) {
		1876	for my $path (keys %MAP_PREFETCH) {
		1877	my $map = find $path
		1878	or next;
		1879	$map->load;
		1880
		1881	delete $MAP_PREFETCH{$path};
		1882	}
		1883	}
		1884	undef $MAP_PREFETCHER;
		1885	};
		1886	$MAP_PREFETCHER->prio (6);
		1887
		1888	()
		1889	}
		1890
1282	sub save {	1891	sub save {
1283	my ($self) = @_;	1892	my ($self) = @_;
1284		1893
1285	my $lock = cf::lock_acquire "map_data:" . $self->path;	1894	my $lock = cf::lock_acquire "map_data:" . $self->path;
1286		1895
1287	$self->{last_save} = $cf::RUNTIME;	1896	$self->{last_save} = $cf::RUNTIME;
1288		1897
1289	return unless $self->dirty;	1898	return unless $self->dirty;
1290		1899
1291	my $save = $self->{path}->save_path; utf8::encode $save;	1900	my $save = $self->save_path; utf8::encode $save;
1292	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1901	my $uniq = $self->uniq_path; utf8::encode $uniq;
1293		1902
1294	$self->{load_path} = $save;	1903	$self->{load_path} = $save;
1295		1904
1296	return if $self->{deny_save};	1905	return if $self->{deny_save};
1297		1906
1298	local $self->{last_access} = $self->last_access;#d#	1907	local $self->{last_access} = $self->last_access;#d#
1299		1908
		1909	cf::async {
		1910	$_->contr->save for $self->players;
		1911	};
		1912
1300	if ($uniq) {	1913	if ($uniq) {
1301	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1914	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1302	$self->save_objects ($uniq, cf::IO_UNIQUES);	1915	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1303	} else {	1916	} else {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1917	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1305	}	1918	}
1306	}	1919	}
1307		1920
1308	sub swap_out {	1921	sub swap_out {
1309	my ($self) = @_;	1922	my ($self) = @_;
…		…
1323		1936
1324	sub reset_at {	1937	sub reset_at {
1325	my ($self) = @_;	1938	my ($self) = @_;
1326		1939
1327	# TODO: safety, remove and allow resettable per-player maps	1940	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	1941	return 1e99 if $self->{deny_reset};
1330		1942
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		1945
…		…
1338	my ($self) = @_;	1950	my ($self) = @_;
1339		1951
1340	$self->reset_at <= $cf::RUNTIME	1952	$self->reset_at <= $cf::RUNTIME
1341	}	1953	}
1342		1954
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	1955	sub reset {
1365	my ($self) = @_;	1956	my ($self) = @_;
1366		1957
1367	my $lock = cf::lock_acquire "map_data:" . $self->path;	1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
1368		1959
1369	return if $self->players;	1960	return if $self->players;
1370	return if $self->{path}{user_rel};#d#
1371		1961
1372	warn "resetting map ", $self->path;#d#	1962	warn "resetting map ", $self->path;
		1963
		1964	$self->in_memory (cf::MAP_SWAPPED);
		1965
		1966	# need to save uniques path
		1967	unless ($self->{deny_save}) {
		1968	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1969
		1970	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1971	if $uniq;
		1972	}
1373		1973
1374	delete $cf::MAP{$self->path};	1974	delete $cf::MAP{$self->path};
		1975
		1976	$self->clear;
1375		1977
1376	$_->clear_links_to ($self) for values %cf::MAP;	1978	$_->clear_links_to ($self) for values %cf::MAP;
1377		1979
1378	$self->unlink_save;	1980	$self->unlink_save;
1379	$self->destroy;	1981	$self->destroy;
…		…
1382	my $nuke_counter = "aaaa";	1984	my $nuke_counter = "aaaa";
1383		1985
1384	sub nuke {	1986	sub nuke {
1385	my ($self) = @_;	1987	my ($self) = @_;
1386		1988
		1989	delete $cf::MAP{$self->path};
		1990
		1991	$self->unlink_save;
		1992
		1993	bless $self, "cf::map";
		1994	delete $self->{deny_reset};
1387	$self->{deny_save} = 1;	1995	$self->{deny_save} = 1;
1388	$self->reset_timeout (1);	1996	$self->reset_timeout (1);
1389	$self->rename ("{nuke}/" . ($nuke_counter++));	1997	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1998
		1999	$cf::MAP{$self->path} = $self;
		2000
1390	$self->reset; # polite request, might not happen	2001	$self->reset; # polite request, might not happen
1391	}	2002	}
1392		2003
1393	sub customise_for {	2004	=item $maps = cf::map::tmp_maps
1394	my ($map, $ob) = @_;
1395		2005
1396	if ($map->per_player) {	2006	Returns an arrayref with all map paths of currently instantiated and saved
1397	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2007	maps. May block.
		2008
		2009	=cut
		2010
		2011	sub tmp_maps() {
1398	}	2012	[
1399		2013	map {
1400	$map	2014	utf8::decode $_;
		2015	/\.map$/
		2016	? normalise $_
		2017	: ()
		2018	} @{ aio_readdir $TMPDIR or [] }
		2019	]
1401	}	2020	}
1402		2021
1403	sub emergency_save {	2022	=item $maps = cf::map::random_maps
1404	my $freeze_guard = cf::freeze_mainloop;
1405		2023
1406	warn "enter emergency map save\n";	2024	Returns an arrayref with all map paths of currently instantiated and saved
		2025	random maps. May block.
1407		2026
1408	cf::sync_job {	2027	=cut
1409	warn "begin emergency map save\n";
1410	$_->save for values %cf::MAP;
1411	};
1412		2028
1413	warn "end emergency map save\n";	2029	sub random_maps() {
		2030	[
		2031	map {
		2032	utf8::decode $_;
		2033	/\.map$/
		2034	? normalise "?random/$_"
		2035	: ()
		2036	} @{ aio_readdir $RANDOMDIR or [] }
		2037	]
		2038	}
		2039
		2040	=item cf::map::unique_maps
		2041
		2042	Returns an arrayref of paths of all shared maps that have
		2043	instantiated unique items. May block.
		2044
		2045	=cut
		2046
		2047	sub unique_maps() {
		2048	[
		2049	map {
		2050	utf8::decode $_;
		2051	/\.map$/
		2052	? normalise $_
		2053	: ()
		2054	} @{ aio_readdir $UNIQUEDIR or [] }
		2055	]
1414	}	2056	}
1415		2057
1416	package cf;	2058	package cf;
1417		2059
1418	=back	2060	=back
1419		2061
		2062	=head3 cf::object
		2063
		2064	=cut
		2065
		2066	package cf::object;
		2067
		2068	=over 4
		2069
		2070	=item $ob->inv_recursive
		2071
		2072	Returns the inventory of the object _and_ their inventories, recursively.
		2073
		2074	=cut
		2075
		2076	sub inv_recursive_;
		2077	sub inv_recursive_ {
		2078	map { $_, inv_recursive_ $_->inv } @_
		2079	}
		2080
		2081	sub inv_recursive {
		2082	inv_recursive_ inv $_[0]
		2083	}
		2084
		2085	package cf;
		2086
		2087	=back
1420		2088
1421	=head3 cf::object::player	2089	=head3 cf::object::player
1422		2090
1423	=over 4	2091	=over 4
1424		2092
…		…
1438		2106
1439	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1440		2108
1441	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1442	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1443	} else {	2112	} else {
		2113	my $pl = $self->contr;
		2114
		2115	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2116	my $diag = $pl->{npc_dialog};
		2117	$diag->{pl}->ext_reply (
		2118	$diag->{id},
		2119	msgtype => "reply",
		2120	msg => $diag->{pl}->expand_cfpod ($msg),
		2121	add_topics => []
		2122	);
		2123
		2124	} else {
1444	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1445	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1446	}	2128	}
1447	}	2129	}
1448		2130
1449	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1450		2132
…		…
1464		2146
1465	=item $player_object->enter_link	2147	=item $player_object->enter_link
1466		2148
1467	Freezes the player and moves him/her to a special map (C<{link}>).	2149	Freezes the player and moves him/her to a special map (C<{link}>).
1468		2150
1469	The player should be reaosnably safe there for short amounts of time. You	2151	The player should be reasonably safe there for short amounts of time. You
1470	I<MUST> call C<leave_link> as soon as possible, though.	2152	I<MUST> call C<leave_link> as soon as possible, though.
1471		2153
		2154	Will never block.
		2155
1472	=item $player_object->leave_link ($map, $x, $y)	2156	=item $player_object->leave_link ($map, $x, $y)
1473		2157
1474	Moves the player out of the specila link map onto the given map. If the	2158	Moves the player out of the special C<{link}> map onto the specified
1475	map is not valid (or omitted), the player will be moved back to the	2159	map. If the map is not valid (or omitted), the player will be moved back
1476	location he/she was before the call to C<enter_link>, or, if that fails,	2160	to the location he/she was before the call to C<enter_link>, or, if that
1477	to the emergency map position.	2161	fails, to the emergency map position.
1478		2162
1479	Might block.	2163	Might block.
1480		2164
1481	=cut	2165	=cut
		2166
		2167	sub link_map {
		2168	unless ($LINK_MAP) {
		2169	$LINK_MAP = cf::map::find "{link}"
		2170	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2171	$LINK_MAP->load;
		2172	}
		2173
		2174	$LINK_MAP
		2175	}
1482		2176
1483	sub cf::object::player::enter_link {	2177	sub cf::object::player::enter_link {
1484	my ($self) = @_;	2178	my ($self) = @_;
1485		2179
1486	$self->deactivate_recursive;	2180	$self->deactivate_recursive;
1487		2181
1488	return if $self->map == $LINK_MAP;	2182	return if UNIVERSAL::isa $self->map, "ext::map_link";
1489		2183
1490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2184	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1491	if $self->map;	2185	if $self->map && $self->map->{path} ne "{link}";
1492		2186
1493	$self->enter_map ($LINK_MAP, 20, 20);	2187	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1494	}	2188	}
1495		2189
1496	sub cf::object::player::leave_link {	2190	sub cf::object::player::leave_link {
1497	my ($self, $map, $x, $y) = @_;	2191	my ($self, $map, $x, $y) = @_;
		2192
		2193	return unless $self->contr->active;
1498		2194
1499	my $link_pos = delete $self->{_link_pos};	2195	my $link_pos = delete $self->{_link_pos};
1500		2196
1501	unless ($map) {	2197	unless ($map) {
1502	# restore original map position	2198	# restore original map position
…		…
1516	# use -1 or undef as default coordinates, not 0, 0	2212	# use -1 or undef as default coordinates, not 0, 0
1517	($x, $y) = ($map->enter_x, $map->enter_y)	2213	($x, $y) = ($map->enter_x, $map->enter_y)
1518	if $x <=0 && $y <= 0;	2214	if $x <=0 && $y <= 0;
1519		2215
1520	$map->load;	2216	$map->load;
		2217	$map->load_diag;
1521		2218
		2219	return unless $self->contr->active;
1522	$self->activate_recursive;	2220	$self->activate_recursive;
		2221
		2222	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1523	$self->enter_map ($map, $x, $y);	2223	$self->enter_map ($map, $x, $y);
1524	}	2224	}
1525		2225
1526	cf::player->attach (
1527	on_logout => sub {
1528	my ($pl) = @_;
1529
1530	# abort map switching before logout
1531	if ($pl->ob->{_link_pos}) {
1532	cf::sync_job {
1533	$pl->ob->leave_link
1534	};
1535	}
1536	},
1537	on_login => sub {
1538	my ($pl) = @_;
1539
1540	# try to abort aborted map switching on player login :)
1541	# should happen only on crashes
1542	if ($pl->ob->{_link_pos}) {
1543	$pl->ob->enter_link;
1544	Coro::async_pool {
1545	# we need this sleep as the login has a concurrent enter_exit running
1546	# and this sleep increases chances of the player not ending up in scorn
1547	Coro::Timer::sleep 1;
1548	$pl->ob->leave_link;
1549	};
1550	}
1551	},
1552	);
1553
1554	=item $player_object->goto ($path, $x, $y)	2226	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1555		2227
		2228	Moves the player to the given map-path and coordinates by first freezing
		2229	her, loading and preparing them map, calling the provided $check callback
		2230	that has to return the map if sucecssful, and then unfreezes the player on
		2231	the new (success) or old (failed) map position.
		2232
1556	=cut	2233	=cut
		2234
		2235	our $GOTOGEN;
1557		2236
1558	sub cf::object::player::goto {	2237	sub cf::object::player::goto {
1559	my ($self, $path, $x, $y) = @_;	2238	my ($self, $path, $x, $y, $check) = @_;
		2239
		2240	# do generation counting so two concurrent goto's will be executed in-order
		2241	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1560		2242
1561	$self->enter_link;	2243	$self->enter_link;
1562		2244
1563	(Coro::async_pool {	2245	(async {
1564	$path = new cf::path $path;	2246	my $map = eval {
1565
1566	my $map = cf::map::find $path->as_string;	2247	my $map = cf::map::find $path;
		2248
		2249	if ($map) {
1567	$map = $map->customise_for ($self) if $map;	2250	$map = $map->customise_for ($self);
1568		2251	$map = $check->($map) if $check && $map;
1569	# warn "entering ", $map->path, " at ($x, $y)\n"	2252	} else {
1570	# if $map;
1571
1572	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2253	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2254	}
1573		2255
		2256	$map
		2257	};
		2258
		2259	if ($@) {
		2260	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2261	LOG llevError | logBacktrace, Carp::longmess $@;
		2262	}
		2263
		2264	if ($gen == $self->{_goto_generation}) {
		2265	delete $self->{_goto_generation};
1574	$self->leave_link ($map, $x, $y);	2266	$self->leave_link ($map, $x, $y);
		2267	}
1575	})->prio (1);	2268	})->prio (1);
1576	}	2269	}
1577		2270
1578	=item $player_object->enter_exit ($exit_object)	2271	=item $player_object->enter_exit ($exit_object)
1579		2272
…		…
1581		2274
1582	sub parse_random_map_params {	2275	sub parse_random_map_params {
1583	my ($spec) = @_;	2276	my ($spec) = @_;
1584		2277
1585	my $rmp = { # defaults	2278	my $rmp = { # defaults
1586	xsize => 10,	2279	xsize => (cf::rndm 15, 40),
1587	ysize => 10,	2280	ysize => (cf::rndm 15, 40),
		2281	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2282	#layout => string,
1588	};	2283	};
1589		2284
1590	for (split /\n/, $spec) {	2285	for (split /\n/, $spec) {
1591	my ($k, $v) = split /\s+/, $_, 2;	2286	my ($k, $v) = split /\s+/, $_, 2;
1592		2287
…		…
1596	$rmp	2291	$rmp
1597	}	2292	}
1598		2293
1599	sub prepare_random_map {	2294	sub prepare_random_map {
1600	my ($exit) = @_;	2295	my ($exit) = @_;
		2296
		2297	my $guard = cf::lock_acquire "exit_prepare:$exit";
1601		2298
1602	# all this does is basically replace the /! path by	2299	# all this does is basically replace the /! path by
1603	# a new random map path (?random/...) with a seed	2300	# a new random map path (?random/...) with a seed
1604	# that depends on the exit object	2301	# that depends on the exit object
1605		2302
1606	my $rmp = parse_random_map_params $exit->msg;	2303	my $rmp = parse_random_map_params $exit->msg;
1607		2304
1608	if ($exit->map) {	2305	if ($exit->map) {
1609	$rmp->{region} = $exit->map->region_name;	2306	$rmp->{region} = $exit->region->name;
1610	$rmp->{origin_map} = $exit->map->path;	2307	$rmp->{origin_map} = $exit->map->path;
1611	$rmp->{origin_x} = $exit->x;	2308	$rmp->{origin_x} = $exit->x;
1612	$rmp->{origin_y} = $exit->y;	2309	$rmp->{origin_y} = $exit->y;
1613	}	2310	}
1614		2311
1615	$rmp->{random_seed} ||= $exit->random_seed;	2312	$rmp->{random_seed} ||= $exit->random_seed;
1616		2313
1617	my $data = cf::to_json $rmp;	2314	my $data = cf::to_json $rmp;
1618	my $md5 = Digest::MD5::md5_hex $data;	2315	my $md5 = Digest::MD5::md5_hex $data;
		2316	my $meta = "$RANDOMDIR/$md5.meta";
1619		2317
1620	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2318	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1621	aio_write $fh, 0, (length $data), $data, 0;	2319	aio_write $fh, 0, (length $data), $data, 0;
		2320	undef $fh;
		2321	aio_rename "$meta~", $meta;
1622		2322
1623	$exit->slaying ("?random/$md5");	2323	$exit->slaying ("?random/$md5");
1624	$exit->msg (undef);	2324	$exit->msg (undef);
1625	}	2325	}
1626	}	2326	}
…		…
1628	sub cf::object::player::enter_exit {	2328	sub cf::object::player::enter_exit {
1629	my ($self, $exit) = @_;	2329	my ($self, $exit) = @_;
1630		2330
1631	return unless $self->type == cf::PLAYER;	2331	return unless $self->type == cf::PLAYER;
1632		2332
		2333	if ($exit->slaying eq "/!") {
		2334	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2335	# the problem is that $exit might not survive long enough
		2336	# so it needs to be done right now, right here
		2337	cf::sync_job { prepare_random_map $exit };
		2338	}
		2339
		2340	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2341	my $hp = $exit->stats->hp;
		2342	my $sp = $exit->stats->sp;
		2343
1633	$self->enter_link;	2344	$self->enter_link;
1634		2345
1635	(Coro::async_pool {	2346	(async {
1636	$self->deactivate_recursive; # just to be sure	2347	$self->deactivate_recursive; # just to be sure
1637	unless (eval {	2348	unless (eval {
1638	prepare_random_map $exit	2349	$self->goto ($slaying, $hp, $sp);
1639	if $exit->slaying eq "/!";
1640
1641	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1642	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1643		2350
1644	1;	2351	1;
1645	}) {	2352	}) {
1646	$self->message ("Something went wrong deep within the crossfire server. "	2353	$self->message ("Something went wrong deep within the crossfire server. "
1647	. "I'll try to bring you back to the map you were before. "	2354	. "I'll try to bring you back to the map you were before. "
1648	. "Please report this to the dungeon master",	2355	. "Please report this to the dungeon master!",
1649	cf::NDI_UNIQUE | cf::NDI_RED);	2356	cf::NDI_UNIQUE | cf::NDI_RED);
1650		2357
1651	warn "ERROR in enter_exit: $@";	2358	warn "ERROR in enter_exit: $@";
1652	$self->leave_link;	2359	$self->leave_link;
1653	}	2360	}
1654	})->prio (1);	2361	})->prio (1);
…		…
1667		2374
1668	sub cf::client::send_drawinfo {	2375	sub cf::client::send_drawinfo {
1669	my ($self, $text, $flags) = @_;	2376	my ($self, $text, $flags) = @_;
1670		2377
1671	utf8::encode $text;	2378	utf8::encode $text;
1672	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1673	}	2380	}
1674		2381
		2382	=item $client->send_msg ($color, $type, $msg, [extra...])
		2383
		2384	Send a drawinfo or msg packet to the client, formatting the msg for the
		2385	client if neccessary. C<$type> should be a string identifying the type of
		2386	the message, with C<log> being the default. If C<$color> is negative, suppress
		2387	the message unless the client supports the msg packet.
		2388
		2389	=cut
		2390
		2391	sub cf::client::send_msg {
		2392	my ($self, $color, $type, $msg, @extra) = @_;
		2393
		2394	$msg = $self->pl->expand_cfpod ($msg);
		2395
		2396	if ($self->can_msg) {
		2397	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2398	} else {
		2399	# replace some tags by gcfclient-compatible ones
		2400	for ($msg) {
		2401	1 while
		2402	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2403	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2404	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2405	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2406	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2407	}
		2408
		2409	if ($color >= 0) {
		2410	if (0 && $msg =~ /\[/) {
		2411	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2412	} else {
		2413	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2414	$self->send_packet ("drawinfo $color $msg")
		2415	}
		2416	}
		2417	}
		2418	}
		2419
		2420	=item $client->ext_event ($type, %msg)
		2421
		2422	Sends an ext event to the client.
		2423
		2424	=cut
		2425
		2426	sub cf::client::ext_event($$%) {
		2427	my ($self, $type, %msg) = @_;
		2428
		2429	$msg{msgtype} = "event_$type";
		2430	$self->send_packet ("ext " . cf::to_json \%msg);
		2431	}
1675		2432
1676	=item $success = $client->query ($flags, "text", \&cb)	2433	=item $success = $client->query ($flags, "text", \&cb)
1677		2434
1678	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
1679	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2436	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1680	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2437	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1681		2438
1682	Queries can fail, so check the return code. Or don't, as queries will become	2439	Queries can fail, so check the return code. Or don't, as queries will
1683	reliable at some point in the future.	2440	become reliable at some point in the future.
1684		2441
1685	=cut	2442	=cut
1686		2443
1687	sub cf::client::query {	2444	sub cf::client::query {
1688	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
1696	utf8::encode $text;	2453	utf8::encode $text;
1697	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1698		2455
1699	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
1700	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
1701	}	2460	}
1702		2461
1703	cf::client->attach (	2462	cf::client->attach (
1704	on_reply => sub {	2463	on_reply => sub {
1705	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
…		…
1708	# get handled first	2467	# get handled first
1709	my $queue = delete $ns->{query_queue}	2468	my $queue = delete $ns->{query_queue}
1710	or return; # be conservative, not sure how that can happen, but we saw a crash here	2469	or return; # be conservative, not sure how that can happen, but we saw a crash here
1711		2470
1712	(shift @$queue)->[1]->($msg);	2471	(shift @$queue)->[1]->($msg);
		2472	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1713		2473
1714	push @{ $ns->{query_queue} }, @$queue;	2474	push @{ $ns->{query_queue} }, @$queue;
1715		2475
1716	if (@{ $ns->{query_queue} } == @$queue) {	2476	if (@{ $ns->{query_queue} } == @$queue) {
1717	if (@$queue) {	2477	if (@$queue) {
…		…
1719	} else {	2479	} else {
1720	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1721	}	2481	}
1722	}	2482	}
1723	},	2483	},
		2484	on_exticmd => sub {
		2485	my ($ns, $buf) = @_;
		2486
		2487	my $msg = eval { from_json $buf };
		2488
		2489	if (ref $msg) {
		2490	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2491	if (my %reply = $cb->($ns, $msg)) {
		2492	$reply{msgid} = $msg->{msgid};
		2493	$ns->send ("ext " . cf::to_json \%reply);
		2494	}
		2495	}
		2496	} else {
		2497	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2498	}
		2499
		2500	cf::override;
		2501	},
1724	);	2502	);
1725		2503
1726	=item $client->coro (\&cb)	2504	=item $client->async (\&cb)
1727		2505
1728	Create a new coroutine, running the specified callback. The coroutine will	2506	Create a new coroutine, running the specified callback. The coroutine will
1729	be automatically cancelled when the client gets destroyed (e.g. on logout,	2507	be automatically cancelled when the client gets destroyed (e.g. on logout,
1730	or loss of connection).	2508	or loss of connection).
1731		2509
1732	=cut	2510	=cut
1733		2511
1734	sub cf::client::coro {	2512	sub cf::client::async {
1735	my ($self, $cb) = @_;	2513	my ($self, $cb) = @_;
1736		2514
1737	my $coro = &Coro::async_pool ($cb);	2515	my $coro = &Coro::async ($cb);
1738		2516
1739	$coro->on_destroy (sub {	2517	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	2518	delete $self->{_coro}{$coro+0};
1741	});	2519	});
1742		2520
…		…
1775		2553
1776	# here we export the classes and methods available to script code	2554	# here we export the classes and methods available to script code
1777		2555
1778	=pod	2556	=pod
1779		2557
1780	The following fucntions and emthods are available within a safe environment:	2558	The following functions and methods are available within a safe environment:
1781		2559
1782	cf::object contr pay_amount pay_player map	2560	cf::object contr pay_amount pay_player map
1783	cf::object::player player	2561	cf::object::player player
1784	cf::player peaceful	2562	cf::player peaceful
1785	cf::map trigger	2563	cf::map trigger
…		…
1866	=back	2644	=back
1867		2645
1868	=cut	2646	=cut
1869		2647
1870	#############################################################################	2648	#############################################################################
		2649	# the server's init and main functions
1871		2650
1872	=head2 EXTENSION DATABASE SUPPORT	2651	sub load_facedata($) {
		2652	my ($path) = @_;
1873		2653
1874	Crossfire maintains a very simple database for extension use. It can	2654	warn "loading facedata from $path\n";
1875	currently store anything that can be serialised using Storable, which
1876	excludes objects.
1877		2655
1878	The parameter C<$family> should best start with the name of the extension	2656	my $facedata;
1879	using it, it should be unique.	2657	0 < aio_load $path, $facedata
		2658	or die "$path: $!";
1880		2659
1881	=over 4	2660	$facedata = Coro::Storable::thaw $facedata;
1882		2661
1883	=item $hashref = cf::db_get $family	2662	$facedata->{version} == 2
		2663	or cf::cleanup "$path: version mismatch, cannot proceed.";
1884		2664
1885	Return a hashref for use by the extension C<$family>, which can be
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888
1889	=item $value = cf::db_get $family => $key
1890
1891	Returns a single value from the database
1892
1893	=item cf::db_put $family => $hashref
1894
1895	Stores the given family hashref into the database. Updates are delayed, if
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1897
1898	=item cf::db_put $family => $key => $value
1899
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910
1911	=cut
1912
1913	our $DB;
1914
1915	{
1916	my $path = cf::localdir . "/database.pst";
1917
1918	sub db_load() {
1919	$DB = stat $path ? Storable::retrieve $path : { };
1920	}	2665	{
		2666	my $faces = $facedata->{faceinfo};
1921		2667
1922	my $pid;	2668	while (my ($face, $info) = each %$faces) {
1923		2669	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1924	sub db_save() {	2670	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1925	waitpid $pid, 0 if $pid;	2671	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1926	if (0 == ($pid = fork)) {	2672	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1927	$DB->{_meta}{version} = 1;	2673	Coro::cede;
1928	Storable::nstore $DB, "$path~";
1929	rename "$path~", $path;
1930	cf::_exit 0 if defined $pid;
1931	}
1932	}
1933
1934	my $dirty;
1935
1936	sub db_sync() {
1937	db_save if $dirty;
1938	undef $dirty;
1939	}
1940
1941	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1942	db_sync;
1943	});
1944
1945	sub db_dirty() {
1946	$dirty = 1;
1947	$idle->start;
1948	}
1949
1950	sub db_get($;$) {
1951	@_ >= 2
1952	? $DB->{$_[0]}{$_[1]}
1953	: ($DB->{$_[0]} ||= { })
1954	}
1955
1956	sub db_put($$;$) {
1957	if (@_ >= 3) {
1958	$DB->{$_[0]}{$_[1]} = $_[2];
1959	} else {
1960	$DB->{$_[0]} = $_[1];
1961	}
1962	db_dirty;
1963	}
1964
1965	cf::global->attach (
1966	prio => 10000,
1967	on_cleanup => sub {
1968	db_sync;
1969	},	2674	}
1970	);
1971	}
1972		2675
1973	#############################################################################	2676	while (my ($face, $info) = each %$faces) {
1974	# the server's main()	2677	next unless $info->{smooth};
		2678	my $idx = cf::face::find $face
		2679	or next;
		2680	if (my $smooth = cf::face::find $info->{smooth}) {
		2681	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2682	} else {
		2683	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2684	}
		2685	Coro::cede;
		2686	}
		2687	}
		2688
		2689	{
		2690	my $anims = $facedata->{animinfo};
		2691
		2692	while (my ($anim, $info) = each %$anims) {
		2693	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2694	Coro::cede;
		2695	}
		2696
		2697	cf::anim::invalidate_all; # d'oh
		2698	}
		2699
		2700	1
		2701	}
		2702
		2703	sub reload_regions {
		2704	load_resource_file "$MAPDIR/regions"
		2705	or die "unable to load regions file\n";
		2706	}
		2707
		2708	sub reload_facedata {
		2709	load_facedata "$DATADIR/facedata"
		2710	or die "unable to load facedata\n";
		2711	}
		2712
		2713	sub reload_archetypes {
		2714	load_resource_file "$DATADIR/archetypes"
		2715	or die "unable to load archetypes\n";
		2716	}
		2717
		2718	sub reload_treasures {
		2719	load_resource_file "$DATADIR/treasures"
		2720	or die "unable to load treasurelists\n";
		2721	}
		2722
		2723	sub reload_resources {
		2724	warn "reloading resource files...\n";
		2725
		2726	reload_regions;
		2727	reload_facedata;
		2728	#reload_archetypes;#d#
		2729	reload_archetypes;
		2730	reload_treasures;
		2731
		2732	warn "finished reloading resource files\n";
		2733	}
		2734
		2735	sub init {
		2736	reload_resources;
		2737	}
1975		2738
1976	sub cfg_load {	2739	sub cfg_load {
1977	open my $fh, "<:utf8", cf::confdir . "/config"	2740	open my $fh, "<:utf8", "$CONFDIR/config"
1978	or return;	2741	or return;
1979		2742
1980	local $/;	2743	local $/;
1981	*CFG = YAML::Syck::Load <$fh>;	2744	*CFG = YAML::Syck::Load <$fh>;
1982		2745
1983	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2746	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1984		2747
		2748	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2749	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2750
1985	if (exists $CFG{mlockall}) {	2751	if (exists $CFG{mlockall}) {
1986	eval {	2752	eval {
1987	$CFG{mlockall} ? &mlockall : &munlockall	2753	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1988	and die "WARNING: m(un)lockall failed: $!\n";	2754	and die "WARNING: m(un)lockall failed: $!\n";
1989	};	2755	};
1990	warn $@ if $@;	2756	warn $@ if $@;
1991	}	2757	}
1992	}	2758	}
1993		2759
1994	sub main {	2760	sub main {
1995	# we must not ever block the main coroutine	2761	# we must not ever block the main coroutine
1996	local $Coro::idle = sub {	2762	local $Coro::idle = sub {
1997	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2763	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1998	(Coro::unblock_sub {	2764	(async {
1999	Event::one_event;	2765	Event::one_event;
2000	})->();	2766	})->prio (Coro::PRIO_MAX);
2001	};	2767	};
2002		2768
2003	cfg_load;	2769	cfg_load;
2004	db_load;	2770	db_init;
2005	load_extensions;	2771	load_extensions;
		2772
		2773	$TICK_WATCHER->start;
2006	Event::loop;	2774	Event::loop;
2007	}	2775	}
2008		2776
2009	#############################################################################	2777	#############################################################################
2010	# initialisation	2778	# initialisation and cleanup
2011		2779
		2780	# install some emergency cleanup handlers
		2781	BEGIN {
		2782	for my $signal (qw(INT HUP TERM)) {
		2783	Event->signal (
		2784	reentrant => 0,
		2785	data => WF_AUTOCANCEL,
		2786	signal => $signal,
		2787	prio => 0,
		2788	cb => sub {
		2789	cf::cleanup "SIG$signal";
		2790	},
		2791	);
		2792	}
		2793	}
		2794
		2795	sub write_runtime {
		2796	my $runtime = "$LOCALDIR/runtime";
		2797
		2798	# first touch the runtime file to show we are still running:
		2799	# the fsync below can take a very very long time.
		2800
		2801	IO::AIO::aio_utime $runtime, undef, undef;
		2802
		2803	my $guard = cf::lock_acquire "write_runtime";
		2804
		2805	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2806	or return;
		2807
		2808	my $value = $cf::RUNTIME + 90 + 10;
		2809	# 10 is the runtime save interval, for a monotonic clock
		2810	# 60 allows for the watchdog to kill the server.
		2811
		2812	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2813	and return;
		2814
		2815	# always fsync - this file is important
		2816	aio_fsync $fh
		2817	and return;
		2818
		2819	# touch it again to show we are up-to-date
		2820	aio_utime $fh, undef, undef;
		2821
		2822	close $fh
		2823	or return;
		2824
		2825	aio_rename "$runtime~", $runtime
		2826	and return;
		2827
		2828	warn "runtime file written.\n";
		2829
		2830	1
		2831	}
		2832
		2833	sub emergency_save() {
		2834	my $freeze_guard = cf::freeze_mainloop;
		2835
		2836	warn "enter emergency perl save\n";
		2837
		2838	cf::sync_job {
		2839	# use a peculiar iteration method to avoid tripping on perl
		2840	# refcount bugs in for. also avoids problems with players
		2841	# and maps saved/destroyed asynchronously.
		2842	warn "begin emergency player save\n";
		2843	for my $login (keys %cf::PLAYER) {
		2844	my $pl = $cf::PLAYER{$login} or next;
		2845	$pl->valid or next;
		2846	$pl->save;
		2847	}
		2848	warn "end emergency player save\n";
		2849
		2850	warn "begin emergency map save\n";
		2851	for my $path (keys %cf::MAP) {
		2852	my $map = $cf::MAP{$path} or next;
		2853	$map->valid or next;
		2854	$map->save;
		2855	}
		2856	warn "end emergency map save\n";
		2857
		2858	warn "begin emergency database checkpoint\n";
		2859	BDB::db_env_txn_checkpoint $DB_ENV;
		2860	warn "end emergency database checkpoint\n";
		2861	};
		2862
		2863	warn "leave emergency perl save\n";
		2864	}
		2865
		2866	sub post_cleanup {
		2867	my ($make_core) = @_;
		2868
		2869	warn Carp::longmess "post_cleanup backtrace"
		2870	if $make_core;
		2871	}
		2872
2012	sub reload() {	2873	sub do_reload_perl() {
2013	# can/must only be called in main	2874	# can/must only be called in main
2014	if ($Coro::current != $Coro::main) {	2875	if ($Coro::current != $Coro::main) {
2015	warn "can only reload from main coroutine\n";	2876	warn "can only reload from main coroutine";
2016	return;	2877	return;
2017	}	2878	}
2018		2879
2019	warn "reloading...";	2880	warn "reloading...";
2020		2881
2021	my $guard = freeze_mainloop;	2882	warn "entering sync_job";
		2883
		2884	cf::sync_job {
		2885	cf::write_runtime; # external watchdog should not bark
2022	cf::emergency_save;	2886	cf::emergency_save;
		2887	cf::write_runtime; # external watchdog should not bark
2023		2888
2024	eval {	2889	warn "syncing database to disk";
		2890	BDB::db_env_txn_checkpoint $DB_ENV;
		2891
2025	# if anything goes wrong in here, we should simply crash as we already saved	2892	# if anything goes wrong in here, we should simply crash as we already saved
2026		2893
2027	# cancel all watchers	2894	warn "cancelling all WF_AUTOCANCEL watchers";
2028	for (Event::all_watchers) {	2895	for (Event::all_watchers) {
2029	$_->cancel if $_->data & WF_AUTOCANCEL;	2896	$_->cancel if $_->data & WF_AUTOCANCEL;
2030	}	2897	}
2031		2898
		2899	warn "flushing outstanding aio requests";
		2900	for (;;) {
		2901	BDB::flush;
		2902	IO::AIO::flush;
		2903	Coro::cede;
		2904	last unless IO::AIO::nreqs || BDB::nreqs;
		2905	warn "iterate...";
		2906	}
		2907
		2908	++$RELOAD;
		2909
2032	# cancel all extension coros	2910	warn "cancelling all extension coros";
2033	$_->cancel for values %EXT_CORO;	2911	$_->cancel for values %EXT_CORO;
2034	%EXT_CORO = ();	2912	%EXT_CORO = ();
2035		2913
2036	# unload all extensions	2914	warn "removing commands";
2037	for (@exts) {	2915	%COMMAND = ();
		2916
		2917	warn "removing ext/exti commands";
		2918	%EXTCMD = ();
		2919	%EXTICMD = ();
		2920
		2921	warn "unloading/nuking all extensions";
		2922	for my $pkg (@EXTS) {
2038	warn "unloading <$_>";	2923	warn "... unloading $pkg";
2039	unload_extension $_;	2924
		2925	if (my $cb = $pkg->can ("unload")) {
		2926	eval {
		2927	$cb->($pkg);
		2928	1
		2929	} or warn "$pkg unloaded, but with errors: $@";
2040	}	2930	}
2041		2931
		2932	warn "... nuking $pkg";
		2933	Symbol::delete_package $pkg;
		2934	}
		2935
2042	# unload all modules loaded from $LIBDIR	2936	warn "unloading all perl modules loaded from $LIBDIR";
2043	while (my ($k, $v) = each %INC) {	2937	while (my ($k, $v) = each %INC) {
2044	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2045		2939
2046	warn "removing <$k>";	2940	warn "... unloading $k";
2047	delete $INC{$k};	2941	delete $INC{$k};
2048		2942
2049	$k =~ s/\.pm$//;	2943	$k =~ s/\.pm$//;
2050	$k =~ s/\//::/g;	2944	$k =~ s/\//::/g;
2051		2945
…		…
2054	}	2948	}
2055		2949
2056	Symbol::delete_package $k;	2950	Symbol::delete_package $k;
2057	}	2951	}
2058		2952
2059	# sync database to disk
2060	cf::db_sync;
2061	IO::AIO::flush;
2062
2063	# get rid of safe::, as good as possible	2953	warn "getting rid of safe::, as good as possible";
2064	Symbol::delete_package "safe::$_"	2954	Symbol::delete_package "safe::$_"
2065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2955	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2066		2956
2067	# remove register_script_function callbacks
2068	# TODO
2069
2070	# unload cf.pm "a bit"	2957	warn "unloading cf.pm \"a bit\"";
2071	delete $INC{"cf.pm"};	2958	delete $INC{"cf.pm"};
		2959	delete $INC{"cf/pod.pm"};
2072		2960
2073	# don't, removes xs symbols, too,	2961	# don't, removes xs symbols, too,
2074	# and global variables created in xs	2962	# and global variables created in xs
2075	#Symbol::delete_package __PACKAGE__;	2963	#Symbol::delete_package __PACKAGE__;
2076		2964
2077	# reload cf.pm	2965	warn "unload completed, starting to reload now";
		2966
2078	warn "reloading cf.pm";	2967	warn "reloading cf.pm";
2079	require cf;	2968	require cf;
2080	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2969	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2081		2970
2082	# load config and database again	2971	warn "loading config and database again";
2083	cf::cfg_load;	2972	cf::cfg_load;
2084	cf::db_load;
2085		2973
2086	# load extensions
2087	warn "load extensions";	2974	warn "loading extensions";
2088	cf::load_extensions;	2975	cf::load_extensions;
2089		2976
2090	# reattach attachments to objects	2977	warn "reattaching attachments to objects/players";
2091	warn "reattach";	2978	_global_reattach; # objects, sockets
2092	_global_reattach;	2979	warn "reattaching attachments to maps";
2093	};	2980	reattach $_ for values %MAP;
		2981	warn "reattaching attachments to players";
		2982	reattach $_ for values %PLAYER;
2094		2983
2095	if ($@) {	2984	warn "leaving sync_job";
		2985
		2986	1
		2987	} or do {
2096	warn $@;	2988	warn $@;
2097	warn "error while reloading, exiting.";	2989	warn "error while reloading, exiting.";
2098	exit 1;	2990	exit 1;
2099	}	2991	};
2100		2992
2101	warn "reloaded successfully";	2993	warn "reloaded";
2102	};	2994	};
2103		2995
2104	#############################################################################	2996	our $RELOAD_WATCHER; # used only during reload
2105		2997
2106	unless ($LINK_MAP) {	2998	sub reload_perl() {
2107	$LINK_MAP = cf::map::new;	2999	# doing reload synchronously and two reloads happen back-to-back,
		3000	# coro crashes during coro_state_free->destroy here.
2108		3001
2109	$LINK_MAP->width (41);	3002	$RELOAD_WATCHER ||= Event->timer (
2110	$LINK_MAP->height (41);	3003	reentrant => 0,
2111	$LINK_MAP->alloc;
2112	$LINK_MAP->path ("{link}");
2113	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2114	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2115
2116	# dirty hack because... archetypes are not yet loaded
2117	Event->timer (
2118	after => 2,	3004	after => 0,
		3005	data => WF_AUTOCANCEL,
2119	cb => sub {	3006	cb => sub {
2120	$_[0]->w->cancel;	3007	do_reload_perl;
2121		3008	undef $RELOAD_WATCHER;
2122	# provide some exits "home"
2123	my $exit = cf::object::new "exit";
2124
2125	$exit->slaying ($EMERGENCY_POSITION->[0]);
2126	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2127	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2128
2129	$LINK_MAP->insert ($exit->clone, 19, 19);
2130	$LINK_MAP->insert ($exit->clone, 19, 20);
2131	$LINK_MAP->insert ($exit->clone, 19, 21);
2132	$LINK_MAP->insert ($exit->clone, 20, 19);
2133	$LINK_MAP->insert ($exit->clone, 20, 21);
2134	$LINK_MAP->insert ($exit->clone, 21, 19);
2135	$LINK_MAP->insert ($exit->clone, 21, 20);
2136	$LINK_MAP->insert ($exit->clone, 21, 21);
2137
2138	$exit->destroy;
2139	});	3009	},
2140		3010	);
2141	$LINK_MAP->{deny_save} = 1;
2142	$LINK_MAP->{deny_reset} = 1;
2143
2144	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2145	}	3011	}
2146
2147	register "<global>", __PACKAGE__;
2148		3012
2149	register_command "reload" => sub {	3013	register_command "reload" => sub {
2150	my ($who, $arg) = @_;	3014	my ($who, $arg) = @_;
2151		3015
2152	if ($who->flag (FLAG_WIZ)) {	3016	if ($who->flag (FLAG_WIZ)) {
2153	$who->message ("start of reload.");
2154	reload;
2155	$who->message ("end of reload.");	3017	$who->message ("reloading server.");
		3018	async { reload_perl };
2156	}	3019	}
2157	};	3020	};
2158		3021
2159	unshift @INC, $LIBDIR;	3022	unshift @INC, $LIBDIR;
2160		3023
		3024	my $bug_warning = 0;
		3025
		3026	our @WAIT_FOR_TICK;
		3027	our @WAIT_FOR_TICK_BEGIN;
		3028
		3029	sub wait_for_tick {
		3030	return unless $TICK_WATCHER->is_active;
		3031	return if $Coro::current == $Coro::main;
		3032
		3033	my $signal = new Coro::Signal;
		3034	push @WAIT_FOR_TICK, $signal;
		3035	$signal->wait;
		3036	}
		3037
		3038	sub wait_for_tick_begin {
		3039	return unless $TICK_WATCHER->is_active;
		3040	return if $Coro::current == $Coro::main;
		3041
		3042	my $signal = new Coro::Signal;
		3043	push @WAIT_FOR_TICK_BEGIN, $signal;
		3044	$signal->wait;
		3045	}
		3046
		3047	my $min = 1e6;#d#
		3048	my $avg = 10;
2161	$TICK_WATCHER = Event->timer (	3049	$TICK_WATCHER = Event->timer (
2162	reentrant => 0,	3050	reentrant => 0,
		3051	parked => 1,
2163	prio => 0,	3052	prio => 0,
2164	at => $NEXT_TICK || $TICK,	3053	at => $NEXT_TICK || $TICK,
2165	data => WF_AUTOCANCEL,	3054	data => WF_AUTOCANCEL,
2166	cb => sub {	3055	cb => sub {
		3056	if ($Coro::current != $Coro::main) {
		3057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3058	unless ++$bug_warning > 10;
		3059	return;
		3060	}
		3061
		3062	$NOW = $tick_start = Event::time;
		3063
2167	cf::server_tick; # one server iteration	3064	cf::server_tick; # one server iteration
		3065
		3066	0 && sync_job {#d#
		3067	for(1..10) {
		3068	my $t = Event::time;
		3069	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3070	or die;
		3071
		3072	$map->width (50);
		3073	$map->height (50);
		3074	$map->alloc;
		3075	$map->_load_objects ("/tmp/x.map", 1);
		3076	my $t = Event::time - $t;
		3077
		3078	#next unless $t < 0.0013;#d#
		3079	if ($t < $min) {
		3080	$min = $t;
		3081	}
		3082	$avg = $avg * 0.99 + $t * 0.01;
		3083	}
		3084	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3085	exit 0;
		3086	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3087	};
		3088
2168	$RUNTIME += $TICK;	3089	$RUNTIME += $TICK;
2169	$NEXT_TICK += $TICK;	3090	$NEXT_TICK += $TICK;
2170		3091
		3092	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3093	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3094	Coro::async_pool {
		3095	write_runtime
		3096	or warn "ERROR: unable to write runtime file: $!";
		3097	};
		3098	}
		3099
		3100	# my $AFTER = Event::time;
		3101	# warn $AFTER - $NOW;#d#
		3102
		3103	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3104	$sig->send;
		3105	}
		3106	while (my $sig = shift @WAIT_FOR_TICK) {
		3107	$sig->send;
		3108	}
		3109
		3110	$NOW = Event::time;
		3111
2171	# if we are delayed by four ticks or more, skip them all	3112	# if we are delayed by four ticks or more, skip them all
2172	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3113	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2173		3114
2174	$TICK_WATCHER->at ($NEXT_TICK);	3115	$TICK_WATCHER->at ($NEXT_TICK);
2175	$TICK_WATCHER->start;	3116	$TICK_WATCHER->start;
		3117
		3118	$LOAD = ($NOW - $tick_start) / $TICK;
		3119	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3120
		3121	_post_tick;
		3122
		3123
2176	},	3124	},
2177	);	3125	);
2178		3126
		3127	{
2179	IO::AIO::max_poll_time $TICK * 0.2;	3128	BDB::max_poll_time $TICK * 0.1;
2180		3129	$BDB_POLL_WATCHER = Event->io (
2181	Event->io (	3130	reentrant => 0,
2182	fd => IO::AIO::poll_fileno,	3131	fd => BDB::poll_fileno,
2183	poll => 'r',	3132	poll => 'r',
2184	prio => 5,	3133	prio => 0,
2185	data => WF_AUTOCANCEL,
2186	cb => \&IO::AIO::poll_cb,
2187	);
2188
2189	Event->timer (
2190	data => WF_AUTOCANCEL,	3134	data => WF_AUTOCANCEL,
2191	after => 0,	3135	cb => \&BDB::poll_cb,
2192	interval => 10,	3136	);
2193	cb => sub {	3137	BDB::min_parallel 8;
2194	(Coro::unblock_sub {	3138
2195	write_runtime	3139	BDB::set_sync_prepare {
2196	or warn "ERROR: unable to write runtime file: $!";	3140	my $status;
		3141	my $current = $Coro::current;
		3142	(
		3143	sub {
		3144	$status = $!;
		3145	$current->ready; undef $current;
		3146	},
		3147	sub {
		3148	Coro::schedule while defined $current;
		3149	$! = $status;
		3150	},
		3151	)
		3152	};
		3153
		3154	unless ($DB_ENV) {
		3155	$DB_ENV = BDB::db_env_create;
		3156
		3157	cf::sync_job {
		3158	eval {
		3159	BDB::db_env_open
		3160	$DB_ENV,
		3161	$BDBDIR,
		3162	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3163	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3164	0666;
		3165
		3166	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3167
		3168	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3169	$DB_ENV->set_lk_detect;
		3170	};
		3171
		3172	cf::cleanup "db_env_open(db): $@" if $@;
2197	})->();	3173	};
2198	},	3174	}
2199	);	3175	}
		3176
		3177	{
		3178	IO::AIO::min_parallel 8;
		3179
		3180	undef $Coro::AIO::WATCHER;
		3181	IO::AIO::max_poll_time $TICK * 0.1;
		3182	$AIO_POLL_WATCHER = Event->io (
		3183	reentrant => 0,
		3184	data => WF_AUTOCANCEL,
		3185	fd => IO::AIO::poll_fileno,
		3186	poll => 'r',
		3187	prio => 6,
		3188	cb => \&IO::AIO::poll_cb,
		3189	);
		3190	}
		3191
		3192	my $_log_backtrace;
		3193
		3194	sub _log_backtrace {
		3195	my ($msg, @addr) = @_;
		3196
		3197	$msg =~ s/\n//;
		3198
		3199	# limit the # of concurrent backtraces
		3200	if ($_log_backtrace < 2) {
		3201	++$_log_backtrace;
		3202	async {
		3203	my @bt = fork_call {
		3204	@addr = map { sprintf "%x", $_ } @addr;
		3205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3207	or die "addr2line: $!";
		3208
		3209	my @funcs;
		3210	my @res = <$fh>;
		3211	chomp for @res;
		3212	while (@res) {
		3213	my ($func, $line) = splice @res, 0, 2, ();
		3214	push @funcs, "[$func] $line";
		3215	}
		3216
		3217	@funcs
		3218	};
		3219
		3220	LOG llevInfo, "[ABT] $msg\n";
		3221	LOG llevInfo, "[ABT] $_\n" for @bt;
		3222	--$_log_backtrace;
		3223	};
		3224	} else {
		3225	LOG llevInfo, "[ABT] $msg\n";
		3226	LOG llevInfo, "[ABT] [suppressed]\n";
		3227	}
		3228	}
		3229
		3230	# load additional modules
		3231	use cf::pod;
2200		3232
2201	END { cf::emergency_save }	3233	END { cf::emergency_save }
2202		3234
2203	1	3235	1
2204		3236

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