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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.107 by root, Sun Dec 31 18:10:40 2006 UTC vs.
Revision 1.281 by root, Sat Jun 16 23:22:59 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;
		27	use Digest::MD5;
20	use Fcntl;	28	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
23	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
24		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
25	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
26		41
27	# 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?
28	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
29		44
30	$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
31		46
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		48
34	our %COMMAND = ();	49	our %COMMAND = ();
35	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
37		56
		57	our $RELOAD; # number of reloads so far
38	our @EVENT;	58	our @EVENT;
39	our $LIBDIR = datadir . "/ext";
40		59
41	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
42	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	76	our $NEXT_TICK;
44	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
45		82
46	our %CFG;	83	our %CFG;
47		84
48	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	86	our $RUNTIME;
50		87
		88	our %PLAYER; # all users
51	our %MAP; # all maps	89	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
53	our $FREEZE;	91
		92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
54		98
55	binmode STDOUT;	99	binmode STDOUT;
56	binmode STDERR;	100	binmode STDERR;
57		101
58	# read virtual server time, if available	102	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
60	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
61	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
62	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
63	}	107	}
64		108
65	mkdir cf::localdir;	109	mkdir $_
66	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
67	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;
69		111
70	our %EXT_CORO;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
71		115
72	#############################################################################	116	#############################################################################
73		117
74	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
75		119
…		…
82	=item $cf::RUNTIME	126	=item $cf::RUNTIME
83		127
84	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
85	every server tick.	129	every server tick.
86		130
87	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
88		134
89	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
90	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
91		139
92	=item $cf::NOW	140	=item $cf::NOW
93		141
94	The time of the last (current) server tick.	142	The time of the last (current) server tick.
95		143
96	=item $cf::TICK	144	=item $cf::TICK
97		145
98	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
99		157
100	=item %cf::CFG	158	=item %cf::CFG
101		159
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
104		168
105	=back	169	=back
106		170
107	=cut	171	=cut
108		172
109	BEGIN {	173	BEGIN {
110	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
111	my $msg = join "", @_;	175	my $msg = join "", @_;
112	utf8::encode $msg;
113		176
114	$msg .= "\n"	177	$msg .= "\n"
115	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
116		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
117	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
118	};	184	};
119	}	185	}
120		186
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
127		194
128	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
129	# within the Safe compartment.	196	# within the Safe compartment.
130	for my $pkg (qw(	197	for my $pkg (qw(
131	cf::global cf::attachable	198	cf::global cf::attachable
…		…
140		207
141	$Event::DIED = sub {	208	$Event::DIED = sub {
142	warn "error in event callback: @_";	209	warn "error in event callback: @_";
143	};	210	};
144		211
145	my %ext_pkg;	212	#############################################################################
146	my @exts;
147	my @hook;
148		213
149	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
150		215
151	=over 4	216	=over 4
152		217
153	=cut	218	=item dumpval $ref
154		219
		220	=cut
		221
		222	sub dumpval {
		223	eval {
		224	local $SIG{__DIE__};
		225	my $d;
		226	if (1) {
		227	$d = new Data::Dumper([$_[0]], ["*var"]);
		228	$d->Terse(1);
		229	$d->Indent(2);
		230	$d->Quotekeys(0);
		231	$d->Useqq(1);
		232	#$d->Bless(...);
		233	$d->Seen($_[1]) if @_ > 1;
		234	$d = $d->Dump();
		235	}
		236	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		237	$d
		238	} || "[unable to dump $_[0]: '$@']";
		239	}
		240
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	241	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
156		242
157	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
158		244
159	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
160		246
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
169		248
170	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
171		250
172	=cut	251	=item cf::lock_wait $string
173		252
174	sub to_json($) {	253	Wait until the given lock is available. See cf::lock_acquire.
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
176	JSON::Syck::Dump $_[0]	255	=item my $lock = cf::lock_acquire $string
		256
		257	Wait until the given lock is available and then acquires it and returns
		258	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		259	for example when the coroutine gets canceled), the lock is automatically
		260	returned.
		261
		262	Lock names should begin with a unique identifier (for example, cf::map::find
		263	uses map_find and cf::map::load uses map_load).
		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
		269	=cut
		270
		271	our %LOCK;
		272
		273	sub lock_wait($) {
		274	my ($key) = @_;
		275
		276	# wait for lock, if any
		277	while ($LOCK{$key}) {
		278	push @{ $LOCK{$key} }, $Coro::current;
		279	Coro::schedule;
		280	}
177	}	281	}
		282
		283	sub lock_acquire($) {
		284	my ($key) = @_;
		285
		286	# wait, to be sure we are not locked
		287	lock_wait $key;
		288
		289	$LOCK{$key} = [];
		290
		291	Coro::guard {
		292	# wake up all waiters, to be on the safe side
		293	$_->ready for @{ delete $LOCK{$key} };
		294	}
		295	}
		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
		301	}
		302
		303	sub freeze_mainloop {
		304	return unless $TICK_WATCHER->is_active;
		305
		306	my $guard = Coro::guard {
		307	$TICK_WATCHER->start;
		308	};
		309	$TICK_WATCHER->stop;
		310	$guard
		311	}
		312
		313	=item cf::async { BLOCK }
		314
		315	Currently the same as Coro::async_pool, meaning you cannot use
		316	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		317	thing you are allowed to do is call C<prio> on it.
		318
		319	=cut
		320
		321	BEGIN { *async = \&Coro::async_pool }
178		322
179	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
180		324
181	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
182	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
183	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
184		329
185	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
186	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
187	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
188	fast or be very important.	333	fast or be very important.
…		…
190	=cut	335	=cut
191		336
192	sub sync_job(&) {	337	sub sync_job(&) {
193	my ($job) = @_;	338	my ($job) = @_;
194		339
195	my $busy = 1;
196	my @res;
197
198	# TODO: use suspend/resume instead
199	local $FREEZE = 1;
200
201	my $coro = Coro::async {
202	@res = eval { $job->() };
203	warn $@ if $@;
204	undef $busy;
205	};
206
207	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
		343	# this is the main coro, too bad, we have to block
		344	# till the operation succeeds, freezing the server :/
		345
		346	# TODO: use suspend/resume instead
		347	# (but this is cancel-safe)
		348	my $freeze_guard = freeze_mainloop;
		349
		350	my $busy = 1;
		351	my @res;
		352
		353	(async {
		354	@res = eval { $job->() };
		355	warn $@ if $@;
		356	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	357	})->prio (Coro::PRIO_MAX);
		358
209	while ($busy) {	359	while ($busy) {
210	Coro::cede_notself;	360	Coro::cede or Event::one_event;
211	Event::one_event unless Coro::nready;
212	}	361	}
		362
		363	$time = Event::time - $time;
		364
		365	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		366	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		367
		368	$tick_start += $time; # do not account sync jobs to server load
		369
		370	wantarray ? @res : $res[0]
213	} else {	371	} else {
214	$coro->join;	372	# we are in another coroutine, how wonderful, everything just works
		373
		374	$job->()
215	}	375	}
216
217	wantarray ? @res : $res[0]
218	}	376	}
219		377
220	=item $coro = cf::coro { BLOCK }	378	=item $coro = cf::async_ext { BLOCK }
221		379
222	Creates and returns a new coro. This coro is automcatially being canceled	380	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	381	extension calling this is being unloaded.
224		382
225	=cut	383	=cut
226		384
227	sub coro(&) {	385	sub async_ext(&) {
228	my $cb = shift;	386	my $cb = shift;
229		387
230	my $coro; $coro = async {	388	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		389
237	$coro->on_destroy (sub {	390	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	391	delete $EXT_CORO{$coro+0};
239	});	392	});
240	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
241		394
242	$coro	395	$coro
243	}	396	}
244		397
		398	=item fork_call { }, $args
		399
		400	Executes the given code block with the given arguments in a seperate
		401	process, returning the results. Everything must be serialisable with
		402	Coro::Storable. May, of course, block. Note that the executed sub may
		403	never block itself or use any form of Event handling.
		404
		405	=cut
		406
		407	sub fork_call(&@) {
		408	my ($cb, @args) = @_;
		409
		410	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		411	# or die "socketpair: $!";
		412	pipe my $fh1, my $fh2
		413	or die "pipe: $!";
		414
		415	if (my $pid = fork) {
		416	close $fh2;
		417
		418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		419	$res = Coro::Storable::thaw $res;
		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
		439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		473	my $key = "$_[0]/$_[1]";
		474
		475	cf::sync_job {
		476	BDB::db_get $DB, undef, $key, my $data;
		477
		478	$! ? ()
		479	: $data
		480	}
		481	}
		482
		483	sub db_put($$$) {
		484	BDB::dbreq_pri 4;
		485	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		486	}
		487
		488	=item cf::cache $id => [$paths...], $processversion => $process
		489
		490	Generic caching function that returns the value of the resource $id,
		491	caching and regenerating as required.
		492
		493	This function can block.
		494
		495	=cut
		496
		497	sub cache {
		498	my ($id, $src, $processversion, $process) = @_;
		499
		500	my $meta =
		501	join "\x00",
		502	$processversion,
		503	map {
		504	aio_stat $_
		505	and Carp::croak "$_: $!";
		506
		507	($_, (stat _)[7,9])
		508	} @$src;
		509
		510	my $dbmeta = db_get cache => "$id/meta";
		511	if ($dbmeta ne $meta) {
		512	# changed, we may need to process
		513
		514	my @data;
		515	my $md5;
		516
		517	for (0 .. $#$src) {
		518	0 <= aio_load $src->[$_], $data[$_]
		519	or Carp::croak "$src->[$_]: $!";
		520	}
		521
		522	# if processing is expensive, check
		523	# checksum first
		524	if (1) {
		525	$md5 =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	Coro::cede;
		530	($src->[$_], Digest::MD5::md5_hex $data[$_])
		531	} 0.. $#$src;
		532
		533
		534	my $dbmd5 = db_get cache => "$id/md5";
		535	if ($dbmd5 eq $md5) {
		536	db_put cache => "$id/meta", $meta;
		537
		538	return db_get cache => "$id/data";
		539	}
		540	}
		541
		542	my $t1 = Time::HiRes::time;
		543	my $data = $process->(\@data);
		544	my $t2 = Time::HiRes::time;
		545
		546	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		547
		548	db_put cache => "$id/data", $data;
		549	db_put cache => "$id/md5" , $md5;
		550	db_put cache => "$id/meta", $meta;
		551
		552	return $data;
		553	}
		554
		555	db_get cache => "$id/data"
		556	}
		557
		558	=item cf::datalog type => key => value, ...
		559
		560	Log a datalog packet of the given type with the given key-value pairs.
		561
		562	=cut
		563
		564	sub datalog($@) {
		565	my ($type, %kv) = @_;
		566	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		567	}
		568
245	=back	569	=back
246		570
247	=cut	571	=cut
248		572
249	#############################################################################	573	#############################################################################
…		…
254	attach callbacks/event handlers (a collection of which is called an "attachment")	578	attach callbacks/event handlers (a collection of which is called an "attachment")
255	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
256		580
257	In the following description, CLASS can be any of C<global>, C<object>	581	In the following description, CLASS can be any of C<global>, C<object>
258	C<player>, C<client> or C<map> (i.e. the attachable objects in	582	C<player>, C<client> or C<map> (i.e. the attachable objects in
259	crossfire+).	583	Crossfire TRT).
260		584
261	=over 4	585	=over 4
262		586
263	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
264		588
…		…
378	our @CB_TYPE = (); # registry for type (cf-object class) based events	702	our @CB_TYPE = (); # registry for type (cf-object class) based events
379	our @CB_MAP = ();	703	our @CB_MAP = ();
380		704
381	my %attachment;	705	my %attachment;
382		706
		707	sub cf::attachable::thawer_merge {
		708	# simply override everything except _meta
		709	local $_[0]{_meta};
		710	%{$_[0]} = %{$_[1]};
		711	}
		712
383	sub _attach_cb($$$$) {	713	sub _attach_cb($$$$) {
384	my ($registry, $event, $prio, $cb) = @_;	714	my ($registry, $event, $prio, $cb) = @_;
385		715
386	use sort 'stable';	716	use sort 'stable';
387		717
…		…
421	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
422		752
423	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
424	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
425	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
426	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
427		757
428	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
429	my $pkg = shift @arg;	759	my $pkg = shift @arg;
430		760
431	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
460	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
461	}	791	}
462		792
463	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
464	} else {	794	} else {
465	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
466	}	796	}
467		797
468	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
469	}	799	}
470		800
…		…
472	if (ref $_[0]) {	802	if (ref $_[0]) {
473	_object_attach @_;	803	_object_attach @_;
474	} else {	804	} else {
475	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
476	}	806	}
		807	_recalc_want;
477	};	808	};
478		809
479	# all those should be optimised	810	# all those should be optimised
480	sub cf::attachable::detach {	811	sub cf::attachable::detach {
481	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
484	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
485	reattach ($obj);	816	reattach ($obj);
486	} else {	817	} else {
487	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
488	}	819	}
		820	_recalc_want;
489	};	821	};
490		822
491	sub cf::attachable::attached {	823	sub cf::attachable::attached {
492	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
493		825
…		…
558	# object support	890	# object support
559		891
560	sub reattach {	892	sub reattach {
561	# basically do the same as instantiate, without calling instantiate	893	# basically do the same as instantiate, without calling instantiate
562	my ($obj) = @_;	894	my ($obj) = @_;
		895
		896	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
563		897
564	my $registry = $obj->registry;	898	my $registry = $obj->registry;
565		899
566	@$registry = ();	900	@$registry = ();
567		901
…		…
614	$filename, length $$rdata, scalar @$objs;	948	$filename, length $$rdata, scalar @$objs;
615		949
616	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
617	chmod SAVE_MODE, $fh;	951	chmod SAVE_MODE, $fh;
618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
619	aio_fsync $fh;	953	aio_fsync $fh if $cf::USE_FSYNC;
620	close $fh;	954	close $fh;
621		955
622	if (@$objs) {	956	if (@$objs) {
623	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
624	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
625	my $data = Storable::nfreeze { version => 1, objs => $objs };	959	my $data = Storable::nfreeze { version => 1, objs => $objs };
626	aio_write $fh, 0, (length $data), $data, 0;	960	aio_write $fh, 0, (length $data), $data, 0;
627	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
628	close $fh;	962	close $fh;
629	aio_rename "$filename.pst~", "$filename.pst";	963	aio_rename "$filename.pst~", "$filename.pst";
630	}	964	}
631	} else {	965	} else {
632	aio_unlink "$filename.pst";	966	aio_unlink "$filename.pst";
…		…
660	or return;	994	or return;
661		995
662	unless (aio_stat "$filename.pst") {	996	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	997	(aio_load "$filename.pst", $av) >= 0
664	or return;	998	or return;
665	$av = eval { (Storable::thaw <$av>)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
666	}	1000	}
667		1001
		1002	warn sprintf "loading %s (%d)\n",
		1003	$filename, length $data, scalar @{$av || []};
668	return ($data, $av);	1004	return ($data, $av);
669	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
670		1012
671	#############################################################################	1013	#############################################################################
672	# command handling &c	1014	# command handling &c
673		1015
674	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
687	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
688	}	1030	}
689		1031
690	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
691		1033
692	Register a callbackf ro execution when the client sends an extcmd packet.	1034	Register a callback fro execution when the client sends an extcmd packet.
693		1035
694	If the callback returns something, it is sent back as if reply was being	1036	If the callback returns something, it is sent back as if reply was being
695	called.	1037	called.
696		1038
697	=cut	1039	=cut
698		1040
699	sub register_extcmd {	1041	sub register_extcmd {
700	my ($name, $cb) = @_;	1042	my ($name, $cb) = @_;
701		1043
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	1044	$EXTCMD{$name} = $cb;
706	}	1045	}
707		1046
708	cf::player->attach (	1047	cf::player->attach (
709	on_command => sub {	1048	on_command => sub {
710	my ($pl, $name, $params) = @_;	1049	my ($pl, $name, $params) = @_;
…		…
723		1062
724	my $msg = eval { from_json $buf };	1063	my $msg = eval { from_json $buf };
725		1064
726	if (ref $msg) {	1065	if (ref $msg) {
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1066	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	1067	if (my %reply = $cb->($pl, $msg)) {
729	$pl->ext_reply ($msg->{msgid}, %reply);	1068	$pl->ext_reply ($msg->{msgid}, %reply);
730	}	1069	}
731	}	1070	}
732	} else {	1071	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1072	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
735		1074
736	cf::override;	1075	cf::override;
737	},	1076	},
738	);	1077	);
739		1078
		1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
		1083	for my $path (<$LIBDIR/*.ext>) {
		1084	next unless -r $path;
		1085
		1086	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1087	my $base = $1;
		1088	my $pkg = $1;
		1089	$pkg =~ s/[^[:word:]]/_/g;
		1090	$pkg = "ext::$pkg";
		1091
		1092	open my $fh, "<:utf8", $path
		1093	or die "$path: $!";
		1094
		1095	my $source = do { local $/; <$fh> };
		1096
		1097	my %ext = (
		1098	path => $path,
		1099	base => $base,
		1100	pkg => $pkg,
		1101	);
		1102
		1103	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1104	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1105
		1106	$ext{source} =
		1107	"package $pkg; use strict; use utf8;\n"
		1108	. "#line 1 \"$path\"\n{\n"
		1109	. $source
		1110	. "\n};\n1";
		1111
		1112	$todo{$base} = \%ext;
		1113	}
		1114
		1115	my %done;
		1116	while (%todo) {
		1117	my $progress;
		1118
		1119	while (my ($k, $v) = each %todo) {
		1120	for (split /,\s*/, $v->{meta}{depends}) {
		1121	goto skip
		1122	unless exists $done{$_};
		1123	}
		1124
		1125	warn "... loading '$k' into '$v->{pkg}'\n";
		1126
		1127	unless (eval $v->{source}) {
		1128	my $msg = $@ ? "$v->{path}: $@\n"
		1129	: "$v->{base}: extension inactive.\n";
		1130
		1131	if (exists $v->{meta}{mandatory}) {
		1132	warn $msg;
		1133	warn "mandatory extension failed to load, exiting.\n";
		1134	exit 1;
		1135	}
		1136
		1137	warn $msg;
		1138	}
		1139
		1140	$done{$k} = delete $todo{$k};
		1141	push @EXTS, $v->{pkg};
		1142	$progress = 1;
		1143	}
		1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
		1149	};
		1150	}
		1151
		1152	#############################################################################
		1153
		1154	=back
		1155
		1156	=head2 CORE EXTENSIONS
		1157
		1158	Functions and methods that extend core crossfire objects.
		1159
		1160	=cut
		1161
		1162	package cf::player;
		1163
		1164	use Coro::AIO;
		1165
		1166	=head3 cf::player
		1167
		1168	=over 4
		1169
		1170	=item cf::player::find $login
		1171
		1172	Returns the given player object, loading it if necessary (might block).
		1173
		1174	=cut
		1175
		1176	sub playerdir($) {
		1177	"$PLAYERDIR/"
		1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1179	}
		1180
		1181	sub path($) {
		1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1183
		1184	(playerdir $login) . "/playerdata"
		1185	}
		1186
		1187	sub find_active($) {
		1188	$cf::PLAYER{$_[0]}
		1189	and $cf::PLAYER{$_[0]}->active
		1190	and $cf::PLAYER{$_[0]}
		1191	}
		1192
		1193	sub exists($) {
		1194	my ($login) = @_;
		1195
		1196	$cf::PLAYER{$login}
		1197	or cf::sync_job { !aio_stat path $login }
		1198	}
		1199
		1200	sub find($) {
		1201	return $cf::PLAYER{$_[0]} || do {
		1202	my $login = $_[0];
		1203
		1204	my $guard = cf::lock_acquire "user_find:$login";
		1205
		1206	$cf::PLAYER{$_[0]} || do {
		1207	# rename old playerfiles to new ones
		1208	#TODO: remove when no longer required
		1209	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1210	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1211	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1212	aio_unlink +(playerdir $login) . "/$login.pl";
		1213
		1214	my $pl = load_pl path $login
		1215	or return;
		1216	$cf::PLAYER{$login} = $pl
		1217	}
		1218	}
		1219	}
		1220
		1221	sub save($) {
		1222	my ($pl) = @_;
		1223
		1224	return if $pl->{deny_save};
		1225
		1226	my $path = path $pl;
		1227	my $guard = cf::lock_acquire "user_save:$path";
		1228
		1229	return if $pl->{deny_save};
		1230
		1231	aio_mkdir playerdir $pl, 0770;
		1232	$pl->{last_save} = $cf::RUNTIME;
		1233
		1234	$pl->save_pl ($path);
		1235	Coro::cede;
		1236	}
		1237
		1238	sub new($) {
		1239	my ($login) = @_;
		1240
		1241	my $self = create;
		1242
		1243	$self->ob->name ($login);
		1244	$self->{deny_save} = 1;
		1245
		1246	$cf::PLAYER{$login} = $self;
		1247
		1248	$self
		1249	}
		1250
		1251	=item $pl->quit_character
		1252
		1253	Nukes the player without looking back. If logged in, the connection will
		1254	be destroyed. May block for a long time.
		1255
		1256	=cut
		1257
		1258	sub quit_character {
		1259	my ($pl) = @_;
		1260
		1261	my $name = $pl->ob->name;
		1262
		1263	$pl->{deny_save} = 1;
		1264	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1265
		1266	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1267	$pl->deactivate;
		1268	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1269	$pl->ns->destroy if $pl->ns;
		1270
		1271	my $path = playerdir $pl;
		1272	my $temp = "$path~$cf::RUNTIME~deleting~";
		1273	aio_rename $path, $temp;
		1274	delete $cf::PLAYER{$pl->ob->name};
		1275	$pl->destroy;
		1276
		1277	my $prefix = qr<^~\Q$name\E/>;
		1278
		1279	# nuke player maps
		1280	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1281
		1282	IO::AIO::aio_rmtree $temp;
		1283	}
		1284
		1285	=item $pl->kick
		1286
		1287	Kicks a player out of the game. This destroys the connection.
		1288
		1289	=cut
		1290
		1291	sub kick {
		1292	my ($pl, $kicker) = @_;
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1295	$pl->killer ("kicked");
		1296	$pl->ns->destroy;
		1297	}
		1298
		1299	=item cf::player::list_logins
		1300
		1301	Returns am arrayref of all valid playernames in the system, can take a
		1302	while and may block, so not sync_job-capable, ever.
		1303
		1304	=cut
		1305
		1306	sub list_logins {
		1307	my $dirs = aio_readdir $PLAYERDIR
		1308	or return [];
		1309
		1310	my @logins;
		1311
		1312	for my $login (@$dirs) {
		1313	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1314	aio_read $fh, 0, 512, my $buf, 0 or next;
		1315	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1316
		1317	utf8::decode $login;
		1318	push @logins, $login;
		1319	}
		1320
		1321	\@logins
		1322	}
		1323
		1324	=item $player->maps
		1325
		1326	Returns an arrayref of map paths that are private for this
		1327	player. May block.
		1328
		1329	=cut
		1330
		1331	sub maps($) {
		1332	my ($pl) = @_;
		1333
		1334	$pl = ref $pl ? $pl->ob->name : $pl;
		1335
		1336	my $files = aio_readdir playerdir $pl
		1337	or return;
		1338
		1339	my @paths;
		1340
		1341	for (@$files) {
		1342	utf8::decode $_;
		1343	next if /\.(?:pl|pst)$/;
		1344	next unless /^$PATH_SEP/o;
		1345
		1346	push @paths, cf::map::normalise "~$pl/$_";
		1347	}
		1348
		1349	\@paths
		1350	}
		1351
		1352	=item $player->ext_reply ($msgid, %msg)
		1353
		1354	Sends an ext reply to the player.
		1355
		1356	=cut
		1357
		1358	sub ext_reply($$%) {
		1359	my ($self, $id, %msg) = @_;
		1360
		1361	$msg{msgid} = $id;
		1362
		1363	$self->send ("ext " . cf::to_json \%msg);
		1364	}
		1365
		1366	=item $player->ext_event ($type, %msg)
		1367
		1368	Sends an ext event to the client.
		1369
		1370	=cut
		1371
		1372	sub ext_event($$%) {
		1373	my ($self, $type, %msg) = @_;
		1374
		1375	$self->ns->ext_event ($type, %msg);
		1376	}
		1377
		1378	=head3 cf::region
		1379
		1380	=over 4
		1381
		1382	=cut
		1383
		1384	package cf::region;
		1385
		1386	=item cf::region::find_by_path $path
		1387
		1388	Tries to decuce the likely region for a map knowing only its path.
		1389
		1390	=cut
		1391
		1392	sub find_by_path($) {
		1393	my ($path) = @_;
		1394
		1395	my ($match, $specificity);
		1396
		1397	for my $region (list) {
		1398	if ($region->match && $path =~ $region->match) {
		1399	($match, $specificity) = ($region, $region->specificity)
		1400	if $region->specificity > $specificity;
		1401	}
		1402	}
		1403
		1404	$match
		1405	}
		1406
		1407	=back
		1408
		1409	=head3 cf::map
		1410
		1411	=over 4
		1412
		1413	=cut
		1414
		1415	package cf::map;
		1416
		1417	use Fcntl;
		1418	use Coro::AIO;
		1419
		1420	use overload
		1421	'""' => \&as_string,
		1422	fallback => 1;
		1423
		1424	our $MAX_RESET = 3600;
		1425	our $DEFAULT_RESET = 3000;
		1426
		1427	sub generate_random_map {
		1428	my ($self, $rmp) = @_;
		1429	# mit "rum" bekleckern, nicht
		1430	$self->_create_random_map (
		1431	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1432	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1433	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1434	$rmp->{exit_on_final_map},
		1435	$rmp->{xsize}, $rmp->{ysize},
		1436	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1437	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1438	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1439	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1440	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1441	(cf::region::find $rmp->{region}), $rmp->{custom}
		1442	)
		1443	}
		1444
		1445	=item cf::map->register ($regex, $prio)
		1446
		1447	Register a handler for the map path matching the given regex at the
		1448	givne priority (higher is better, built-in handlers have priority 0, the
		1449	default).
		1450
		1451	=cut
		1452
740	sub register {	1453	sub register {
		1454	my (undef, $regex, $prio) = @_;
		1455	my $pkg = caller;
		1456
		1457	no strict;
		1458	push @{"$pkg\::ISA"}, __PACKAGE__;
		1459
		1460	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1461	}
		1462
		1463	# also paths starting with '/'
		1464	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1465
		1466	sub thawer_merge {
741	my ($base, $pkg) = @_;	1467	my ($self, $merge) = @_;
742		1468
743	#TODO	1469	# we have to keep some variables in memory intact
744	}	1470	local $self->{path};
		1471	local $self->{load_path};
745		1472
746	sub load_extension {	1473	$self->SUPER::thawer_merge ($merge);
		1474	}
		1475
		1476	sub normalise {
747	my ($path) = @_;	1477	my ($path, $base) = @_;
748		1478
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1479	$path = "$path"; # make sure its a string
750	my $base = $1;
751	my $pkg = $1;
752	$pkg =~ s/[^[:word:]]/_/g;
753	$pkg = "ext::$pkg";
754		1480
755	warn "loading '$path' into '$pkg'\n";	1481	$path =~ s/\.map$//;
756		1482
757	open my $fh, "<:utf8", $path	1483	# map plan:
758	or die "$path: $!";	1484	#
		1485	# /! non-realised random map exit (special hack!)
		1486	# {... are special paths that are not being touched
		1487	# ?xxx/... are special absolute paths
		1488	# ?random/... random maps
		1489	# /... normal maps
		1490	# ~user/... per-player map of a specific user
759		1491
760	my $source =	1492	$path =~ s/$PATH_SEP/\//go;
761	"package $pkg; use strict; use utf8;\n"
762	. "#line 1 \"$path\"\n{\n"
763	. (do { local $/; <$fh> })
764	. "\n};\n1";
765		1493
766	eval $source	1494	# treat it as relative path if it starts with
767	or die $@ ? "$path: $@\n"	1495	# something that looks reasonable
768	: "extension disabled.\n";	1496	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1497	$base or Carp::carp "normalise called with relative path and no base: '$path'";
769		1498
770	push @exts, $pkg;	1499	$base =~ s{[^/]+/?$}{};
771	$ext_pkg{$base} = $pkg;	1500	$path = "$base/$path";
772
773	# no strict 'refs';
774	# @{"$pkg\::ISA"} = ext::;
775
776	register $base, $pkg;
777	}
778
779	sub unload_extension {
780	my ($pkg) = @_;
781
782	warn "removing extension $pkg\n";
783
784	# remove hooks
785	#TODO
786	# for my $idx (0 .. $#PLUGIN_EVENT) {
787	# delete $hook[$idx]{$pkg};
788	# }	1501	}
789		1502
790	# remove commands	1503	for ($path) {
791	for my $name (keys %COMMAND) {	1504	redo if s{//}{/};
792	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1505	redo if s{/\.?/}{/};
		1506	redo if s{/[^/]+/\.\./}{/};
		1507	}
793		1508
794	if (@cb) {	1509	$path
795	$COMMAND{$name} = \@cb;	1510	}
		1511
		1512	sub new_from_path {
		1513	my (undef, $path, $base) = @_;
		1514
		1515	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1516
		1517	$path = normalise $path, $base;
		1518
		1519	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1520	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1521	my $self = bless cf::map::new, $pkg;
		1522	$self->{path} = $path; $self->path ($path);
		1523	$self->init; # pass $1 etc.
		1524	return $self;
		1525	}
		1526	}
		1527
		1528	Carp::carp "unable to resolve path '$path' (base '$base').";
		1529	()
		1530	}
		1531
		1532	sub init {
		1533	my ($self) = @_;
		1534
		1535	$self
		1536	}
		1537
		1538	sub as_string {
		1539	my ($self) = @_;
		1540
		1541	"$self->{path}"
		1542	}
		1543
		1544	# the displayed name, this is a one way mapping
		1545	sub visible_name {
		1546	&as_string
		1547	}
		1548
		1549	# the original (read-only) location
		1550	sub load_path {
		1551	my ($self) = @_;
		1552
		1553	"$MAPDIR/$self->{path}.map"
		1554	}
		1555
		1556	# the temporary/swap location
		1557	sub save_path {
		1558	my ($self) = @_;
		1559
		1560	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1561	"$TMPDIR/$path.map"
		1562	}
		1563
		1564	# the unique path, undef == no special unique path
		1565	sub uniq_path {
		1566	my ($self) = @_;
		1567
		1568	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1569	"$UNIQUEDIR/$path"
		1570	}
		1571
		1572	# and all this just because we cannot iterate over
		1573	# all maps in C++...
		1574	sub change_all_map_light {
		1575	my ($change) = @_;
		1576
		1577	$_->change_map_light ($change)
		1578	for grep $_->outdoor, values %cf::MAP;
		1579	}
		1580
		1581	sub decay_objects {
		1582	my ($self) = @_;
		1583
		1584	return if $self->{deny_reset};
		1585
		1586	$self->do_decay_objects;
		1587	}
		1588
		1589	sub unlink_save {
		1590	my ($self) = @_;
		1591
		1592	utf8::encode (my $save = $self->save_path);
		1593	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1594	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1595	}
		1596
		1597	sub load_header_from($) {
		1598	my ($self, $path) = @_;
		1599
		1600	utf8::encode $path;
		1601	#aio_open $path, O_RDONLY, 0
		1602	# or return;
		1603
		1604	$self->_load_header ($path)
		1605	or return;
		1606
		1607	$self->{load_path} = $path;
		1608
		1609	1
		1610	}
		1611
		1612	sub load_header_orig {
		1613	my ($self) = @_;
		1614
		1615	$self->load_header_from ($self->load_path)
		1616	}
		1617
		1618	sub load_header_temp {
		1619	my ($self) = @_;
		1620
		1621	$self->load_header_from ($self->save_path)
		1622	}
		1623
		1624	sub prepare_temp {
		1625	my ($self) = @_;
		1626
		1627	$self->last_access ((delete $self->{last_access})
		1628	|| $cf::RUNTIME); #d#
		1629	# safety
		1630	$self->{instantiate_time} = $cf::RUNTIME
		1631	if $self->{instantiate_time} > $cf::RUNTIME;
		1632	}
		1633
		1634	sub prepare_orig {
		1635	my ($self) = @_;
		1636
		1637	$self->{load_original} = 1;
		1638	$self->{instantiate_time} = $cf::RUNTIME;
		1639	$self->last_access ($cf::RUNTIME);
		1640	$self->instantiate;
		1641	}
		1642
		1643	sub load_header {
		1644	my ($self) = @_;
		1645
		1646	if ($self->load_header_temp) {
		1647	$self->prepare_temp;
796	} else {	1648	} else {
797	delete $COMMAND{$name};	1649	$self->load_header_orig
798	}	1650	or return;
		1651	$self->prepare_orig;
		1652	}
		1653
		1654	$self->{deny_reset} = 1
		1655	if $self->no_reset;
		1656
		1657	$self->default_region (cf::region::find_by_path $self->{path})
		1658	unless $self->default_region;
		1659
799	}	1660	1
		1661	}
800		1662
801	# remove extcmds	1663	sub find;
802	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1664	sub find {
803	delete $EXTCMD{$name};	1665	my ($path, $origin) = @_;
		1666
		1667	$path = normalise $path, $origin && $origin->path;
		1668
		1669	cf::lock_wait "map_find:$path";
		1670
		1671	$cf::MAP{$path} || do {
		1672	my $guard = cf::lock_acquire "map_find:$path";
		1673	my $map = new_from_path cf::map $path
		1674	or return;
		1675
		1676	$map->{last_save} = $cf::RUNTIME;
		1677
		1678	$map->load_header
		1679	or return;
		1680
		1681	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1682	# doing this can freeze the server in a sync job, obviously
		1683	#$cf::WAIT_FOR_TICK->wait;
		1684	$map->reset;
		1685	undef $guard;
		1686	return find $path;
		1687	}
		1688
		1689	$cf::MAP{$path} = $map
		1690	}
		1691	}
		1692
		1693	sub pre_load { }
		1694	sub post_load { }
		1695
		1696	sub load {
		1697	my ($self) = @_;
		1698
		1699	local $self->{deny_reset} = 1; # loading can take a long time
		1700
		1701	my $path = $self->{path};
		1702
804	}	1703	{
		1704	my $guard = cf::lock_acquire "map_load:$path";
805		1705
806	if (my $cb = $pkg->can ("unload")) {	1706	return if $self->in_memory != cf::MAP_SWAPPED;
807	eval {	1707
808	$cb->($pkg);	1708	$self->in_memory (cf::MAP_LOADING);
		1709
		1710	$self->alloc;
		1711
		1712	$self->pre_load;
		1713	Coro::cede;
		1714
		1715	$self->_load_objects ($self->{load_path}, 1)
		1716	or return;
		1717
		1718	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1719	if delete $self->{load_original};
		1720
		1721	if (my $uniq = $self->uniq_path) {
		1722	utf8::encode $uniq;
		1723	if (aio_open $uniq, O_RDONLY, 0) {
		1724	$self->clear_unique_items;
		1725	$self->_load_objects ($uniq, 0);
809	1	1726	}
810	} or warn "$pkg unloaded, but with errors: $@";	1727	}
811	}
812		1728
813	Symbol::delete_package $pkg;	1729	Coro::cede;
814	}	1730	# now do the right thing for maps
		1731	$self->link_multipart_objects;
		1732	$self->difficulty ($self->estimate_difficulty)
		1733	unless $self->difficulty;
		1734	Coro::cede;
815		1735
816	sub load_extensions {	1736	unless ($self->{deny_activate}) {
817	for my $ext (<$LIBDIR/*.ext>) {	1737	$self->decay_objects;
818	next unless -r $ext;	1738	$self->fix_auto_apply;
819	eval {	1739	$self->update_buttons;
820	load_extension $ext;	1740	Coro::cede;
821	1	1741	$self->set_darkness_map;
822	} or warn "$ext not loaded: $@";	1742	Coro::cede;
823	}	1743	$self->activate;
824	}	1744	}
825		1745
826	#############################################################################	1746	$self->in_memory (cf::MAP_IN_MEMORY);
827	# load/save/clean perl data associated with a map	1747	}
828		1748
829	*cf::mapsupport::on_clean = sub {	1749	$self->post_load;
		1750	}
		1751
		1752	sub customise_for {
		1753	my ($self, $ob) = @_;
		1754
		1755	return find "~" . $ob->name . "/" . $self->{path}
		1756	if $self->per_player;
		1757
		1758	# return find "?party/" . $ob->name . "/" . $self->{path}
		1759	# if $self->per_party;
		1760
		1761	$self
		1762	}
		1763
		1764	# find and load all maps in the 3x3 area around a map
		1765	sub load_diag {
830	my ($map) = @_;	1766	my ($map) = @_;
831		1767
832	my $path = $map->tmpname;	1768	my @diag; # diagonal neighbours
833	defined $path or return;
834		1769
835	unlink "$path.pst";	1770	for (0 .. 3) {
836	};	1771	my $neigh = $map->tile_path ($_)
		1772	or next;
		1773	$neigh = find $neigh, $map
		1774	or next;
		1775	$neigh->load;
837		1776
838	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1777	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1778	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1779	}
839		1780
840	#############################################################################	1781	for (@diag) {
841	# load/save perl data associated with player->ob objects	1782	my $neigh = find @$_
842		1783	or next;
843	sub all_objects(@) {	1784	$neigh->load;
844	@_, map all_objects ($_->inv), @_	1785	}
845	}	1786	}
846		1787
847	# TODO: compatibility cruft, remove when no longer needed	1788	sub find_sync {
848	cf::player->attach (	1789	my ($path, $origin) = @_;
849	on_load => sub {
850	my ($pl, $path) = @_;
851		1790
852	for my $o (all_objects $pl->ob) {	1791	cf::sync_job { find $path, $origin }
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1792	}
854	$o->set_ob_key_value ("_perl_data");
855		1793
856	%$o = %{ Storable::thaw pack "H*", $value };	1794	sub do_load_sync {
		1795	my ($map) = @_;
		1796
		1797	cf::sync_job { $map->load };
		1798	}
		1799
		1800	our %MAP_PREFETCH;
		1801	our $MAP_PREFETCHER = undef;
		1802
		1803	sub find_async {
		1804	my ($path, $origin) = @_;
		1805
		1806	$path = normalise $path, $origin && $origin->{path};
		1807
		1808	if (my $map = $cf::MAP{$path}) {
		1809	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1810	}
		1811
		1812	undef $MAP_PREFETCH{$path};
		1813	$MAP_PREFETCHER ||= cf::async {
		1814	while (%MAP_PREFETCH) {
		1815	for my $path (keys %MAP_PREFETCH) {
		1816	my $map = find $path
		1817	or next;
		1818	$map->load;
		1819
		1820	delete $MAP_PREFETCH{$path};
857	}	1821	}
858	}	1822	}
		1823	undef $MAP_PREFETCHER;
		1824	};
		1825	$MAP_PREFETCHER->prio (6);
		1826
		1827	()
		1828	}
		1829
		1830	sub save {
		1831	my ($self) = @_;
		1832
		1833	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1834
		1835	$self->{last_save} = $cf::RUNTIME;
		1836
		1837	return unless $self->dirty;
		1838
		1839	my $save = $self->save_path; utf8::encode $save;
		1840	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1841
		1842	$self->{load_path} = $save;
		1843
		1844	return if $self->{deny_save};
		1845
		1846	local $self->{last_access} = $self->last_access;#d#
		1847
		1848	cf::async {
		1849	$_->contr->save for $self->players;
		1850	};
		1851
		1852	if ($uniq) {
		1853	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1854	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1855	} else {
		1856	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
859	},	1857	}
860	);	1858	}
861		1859
862	#############################################################################	1860	sub swap_out {
		1861	my ($self) = @_;
863		1862
864	=head2 CORE EXTENSIONS	1863	# save first because save cedes
		1864	$self->save;
865		1865
866	Functions and methods that extend core crossfire objects.	1866	my $lock = cf::lock_acquire "map_data:" . $self->path;
867		1867
868	=head3 cf::player	1868	return if $self->players;
		1869	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1870	return if $self->{deny_save};
		1871
		1872	$self->clear;
		1873	$self->in_memory (cf::MAP_SWAPPED);
		1874	}
		1875
		1876	sub reset_at {
		1877	my ($self) = @_;
		1878
		1879	# TODO: safety, remove and allow resettable per-player maps
		1880	return 1e99 if $self->{deny_reset};
		1881
		1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1884
		1885	$time + $to
		1886	}
		1887
		1888	sub should_reset {
		1889	my ($self) = @_;
		1890
		1891	$self->reset_at <= $cf::RUNTIME
		1892	}
		1893
		1894	sub reset {
		1895	my ($self) = @_;
		1896
		1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1898
		1899	return if $self->players;
		1900
		1901	warn "resetting map ", $self->path;
		1902
		1903	$self->in_memory (cf::MAP_SWAPPED);
		1904
		1905	# need to save uniques path
		1906	unless ($self->{deny_save}) {
		1907	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1908
		1909	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1910	if $uniq;
		1911	}
		1912
		1913	delete $cf::MAP{$self->path};
		1914
		1915	$self->clear;
		1916
		1917	$_->clear_links_to ($self) for values %cf::MAP;
		1918
		1919	$self->unlink_save;
		1920	$self->destroy;
		1921	}
		1922
		1923	my $nuke_counter = "aaaa";
		1924
		1925	sub nuke {
		1926	my ($self) = @_;
		1927
		1928	delete $cf::MAP{$self->path};
		1929
		1930	$self->unlink_save;
		1931
		1932	bless $self, "cf::map";
		1933	delete $self->{deny_reset};
		1934	$self->{deny_save} = 1;
		1935	$self->reset_timeout (1);
		1936	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1937
		1938	$cf::MAP{$self->path} = $self;
		1939
		1940	$self->reset; # polite request, might not happen
		1941	}
		1942
		1943	=item $maps = cf::map::tmp_maps
		1944
		1945	Returns an arrayref with all map paths of currently instantiated and saved
		1946	maps. May block.
		1947
		1948	=cut
		1949
		1950	sub tmp_maps() {
		1951	[
		1952	map {
		1953	utf8::decode $_;
		1954	/\.map$/
		1955	? normalise $_
		1956	: ()
		1957	} @{ aio_readdir $TMPDIR or [] }
		1958	]
		1959	}
		1960
		1961	=item $maps = cf::map::random_maps
		1962
		1963	Returns an arrayref with all map paths of currently instantiated and saved
		1964	random maps. May block.
		1965
		1966	=cut
		1967
		1968	sub random_maps() {
		1969	[
		1970	map {
		1971	utf8::decode $_;
		1972	/\.map$/
		1973	? normalise "?random/$_"
		1974	: ()
		1975	} @{ aio_readdir $RANDOMDIR or [] }
		1976	]
		1977	}
		1978
		1979	=item cf::map::unique_maps
		1980
		1981	Returns an arrayref of paths of all shared maps that have
		1982	instantiated unique items. May block.
		1983
		1984	=cut
		1985
		1986	sub unique_maps() {
		1987	[
		1988	map {
		1989	utf8::decode $_;
		1990	/\.map$/
		1991	? normalise $_
		1992	: ()
		1993	} @{ aio_readdir $UNIQUEDIR or [] }
		1994	]
		1995	}
		1996
		1997	package cf;
		1998
		1999	=back
		2000
		2001	=head3 cf::object
		2002
		2003	=cut
		2004
		2005	package cf::object;
869		2006
870	=over 4	2007	=over 4
871		2008
872	=item cf::player::exists $login	2009	=item $ob->inv_recursive
873		2010
874	Returns true when the given account exists.	2011	Returns the inventory of the object _and_ their inventories, recursively.
875		2012
876	=cut	2013	=cut
877		2014
878	sub cf::player::exists($) {	2015	sub inv_recursive_;
879	cf::player::find $_[0]	2016	sub inv_recursive_ {
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2017	map { $_, inv_recursive_ $_->inv } @_
881	}	2018	}
882		2019
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	2020	sub inv_recursive {
884		2021	inv_recursive_ inv $_[0]
885	Sends an ext reply to the player.
886
887	=cut
888
889	sub cf::player::ext_reply($$$%) {
890	my ($self, $id, %msg) = @_;
891
892	$msg{msgid} = $id;
893
894	$self->send ("ext " . to_json \%msg);
895	}	2022	}
		2023
		2024	package cf;
896		2025
897	=back	2026	=back
898		2027
899	=head3 cf::object::player	2028	=head3 cf::object::player
900		2029
…		…
938	(ref $cf::CFG{"may_$access"}	2067	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2068	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	2069	: $cf::CFG{"may_$access"})
941	}	2070	}
942		2071
		2072	=item $player_object->enter_link
		2073
		2074	Freezes the player and moves him/her to a special map (C<{link}>).
		2075
		2076	The player should be reasonably safe there for short amounts of time. You
		2077	I<MUST> call C<leave_link> as soon as possible, though.
		2078
		2079	Will never block.
		2080
		2081	=item $player_object->leave_link ($map, $x, $y)
		2082
		2083	Moves the player out of the special C<{link}> map onto the specified
		2084	map. If the map is not valid (or omitted), the player will be moved back
		2085	to the location he/she was before the call to C<enter_link>, or, if that
		2086	fails, to the emergency map position.
		2087
		2088	Might block.
		2089
		2090	=cut
		2091
		2092	sub link_map {
		2093	unless ($LINK_MAP) {
		2094	$LINK_MAP = cf::map::find "{link}"
		2095	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2096	$LINK_MAP->load;
		2097	}
		2098
		2099	$LINK_MAP
		2100	}
		2101
		2102	sub cf::object::player::enter_link {
		2103	my ($self) = @_;
		2104
		2105	$self->deactivate_recursive;
		2106
		2107	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2108
		2109	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2110	if $self->map && $self->map->{path} ne "{link}";
		2111
		2112	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2113	}
		2114
		2115	sub cf::object::player::leave_link {
		2116	my ($self, $map, $x, $y) = @_;
		2117
		2118	return unless $self->contr->active;
		2119
		2120	my $link_pos = delete $self->{_link_pos};
		2121
		2122	unless ($map) {
		2123	# restore original map position
		2124	($map, $x, $y) = @{ $link_pos || [] };
		2125	$map = cf::map::find $map;
		2126
		2127	unless ($map) {
		2128	($map, $x, $y) = @$EMERGENCY_POSITION;
		2129	$map = cf::map::find $map
		2130	or die "FATAL: cannot load emergency map\n";
		2131	}
		2132	}
		2133
		2134	($x, $y) = (-1, -1)
		2135	unless (defined $x) && (defined $y);
		2136
		2137	# use -1 or undef as default coordinates, not 0, 0
		2138	($x, $y) = ($map->enter_x, $map->enter_y)
		2139	if $x <=0 && $y <= 0;
		2140
		2141	$map->load;
		2142	$map->load_diag;
		2143
		2144	return unless $self->contr->active;
		2145	$self->activate_recursive;
		2146
		2147	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2148	$self->enter_map ($map, $x, $y);
		2149	}
		2150
		2151	=item $player_object->goto ($path, $x, $y[, $check->($map)])
		2152
		2153	Moves the player to the given map-path and coordinates by first freezing
		2154	her, loading and preparing them map, calling the provided $check callback
		2155	that has to return the map if sucecssful, and then unfreezes the player on
		2156	the new (success) or old (failed) map position.
		2157
		2158	=cut
		2159
		2160	our $GOTOGEN;
		2161
		2162	sub cf::object::player::goto {
		2163	my ($self, $path, $x, $y, $check) = @_;
		2164
		2165	# do generation counting so two concurrent goto's will be executed in-order
		2166	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2167
		2168	$self->enter_link;
		2169
		2170	(async {
		2171	my $map = eval {
		2172	my $map = cf::map::find $path;
		2173
		2174	if ($map) {
		2175	$map = $map->customise_for ($self);
		2176	$map = $check->($map) if $check && $map;
		2177	} else {
		2178	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2179	}
		2180
		2181	$map
		2182	};
		2183
		2184	if ($@) {
		2185	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2186	LOG llevError | logBacktrace, Carp::longmess $@;
		2187	}
		2188
		2189	if ($gen == $self->{_goto_generation}) {
		2190	delete $self->{_goto_generation};
		2191	$self->leave_link ($map, $x, $y);
		2192	}
		2193	})->prio (1);
		2194	}
		2195
		2196	=item $player_object->enter_exit ($exit_object)
		2197
		2198	=cut
		2199
		2200	sub parse_random_map_params {
		2201	my ($spec) = @_;
		2202
		2203	my $rmp = { # defaults
		2204	xsize => (cf::rndm 15, 40),
		2205	ysize => (cf::rndm 15, 40),
		2206	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2207	#layout => string,
		2208	};
		2209
		2210	for (split /\n/, $spec) {
		2211	my ($k, $v) = split /\s+/, $_, 2;
		2212
		2213	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2214	}
		2215
		2216	$rmp
		2217	}
		2218
		2219	sub prepare_random_map {
		2220	my ($exit) = @_;
		2221
		2222	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2223
		2224	# all this does is basically replace the /! path by
		2225	# a new random map path (?random/...) with a seed
		2226	# that depends on the exit object
		2227
		2228	my $rmp = parse_random_map_params $exit->msg;
		2229
		2230	if ($exit->map) {
		2231	$rmp->{region} = $exit->region->name;
		2232	$rmp->{origin_map} = $exit->map->path;
		2233	$rmp->{origin_x} = $exit->x;
		2234	$rmp->{origin_y} = $exit->y;
		2235	}
		2236
		2237	$rmp->{random_seed} ||= $exit->random_seed;
		2238
		2239	my $data = cf::to_json $rmp;
		2240	my $md5 = Digest::MD5::md5_hex $data;
		2241	my $meta = "$RANDOMDIR/$md5.meta";
		2242
		2243	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2244	aio_write $fh, 0, (length $data), $data, 0;
		2245	undef $fh;
		2246	aio_rename "$meta~", $meta;
		2247
		2248	$exit->slaying ("?random/$md5");
		2249	$exit->msg (undef);
		2250	}
		2251	}
		2252
		2253	sub cf::object::player::enter_exit {
		2254	my ($self, $exit) = @_;
		2255
		2256	return unless $self->type == cf::PLAYER;
		2257
		2258	if ($exit->slaying eq "/!") {
		2259	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2260	# the problem is that $exit might not survive long enough
		2261	# so it needs to be done right now, right here
		2262	cf::sync_job { prepare_random_map $exit };
		2263	}
		2264
		2265	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2266	my $hp = $exit->stats->hp;
		2267	my $sp = $exit->stats->sp;
		2268
		2269	$self->enter_link;
		2270
		2271	(async {
		2272	$self->deactivate_recursive; # just to be sure
		2273	unless (eval {
		2274	$self->goto ($slaying, $hp, $sp);
		2275
		2276	1;
		2277	}) {
		2278	$self->message ("Something went wrong deep within the crossfire server. "
		2279	. "I'll try to bring you back to the map you were before. "
		2280	. "Please report this to the dungeon master!",
		2281	cf::NDI_UNIQUE | cf::NDI_RED);
		2282
		2283	warn "ERROR in enter_exit: $@";
		2284	$self->leave_link;
		2285	}
		2286	})->prio (1);
		2287	}
		2288
943	=head3 cf::client	2289	=head3 cf::client
944		2290
945	=over 4	2291	=over 4
946		2292
947	=item $client->send_drawinfo ($text, $flags)	2293	=item $client->send_drawinfo ($text, $flags)
…		…
953		2299
954	sub cf::client::send_drawinfo {	2300	sub cf::client::send_drawinfo {
955	my ($self, $text, $flags) = @_;	2301	my ($self, $text, $flags) = @_;
956		2302
957	utf8::encode $text;	2303	utf8::encode $text;
958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2304	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
959	}	2305	}
960		2306
		2307	=item $client->ext_event ($type, %msg)
		2308
		2309	Sends an exti event to the client.
		2310
		2311	=cut
		2312
		2313	sub cf::client::ext_event($$%) {
		2314	my ($self, $type, %msg) = @_;
		2315
		2316	$msg{msgtype} = "event_$type";
		2317	$self->send_packet ("ext " . cf::to_json \%msg);
		2318	}
961		2319
962	=item $success = $client->query ($flags, "text", \&cb)	2320	=item $success = $client->query ($flags, "text", \&cb)
963		2321
964	Queues a query to the client, calling the given callback with	2322	Queues a query to the client, calling the given callback with
965	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2323	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
990	on_reply => sub {	2348	on_reply => sub {
991	my ($ns, $msg) = @_;	2349	my ($ns, $msg) = @_;
992		2350
993	# this weird shuffling is so that direct followup queries	2351	# this weird shuffling is so that direct followup queries
994	# get handled first	2352	# get handled first
995	my $queue = delete $ns->{query_queue};	2353	my $queue = delete $ns->{query_queue}
		2354	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		2355
997	(shift @$queue)->[1]->($msg);	2356	(shift @$queue)->[1]->($msg);
		2357	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
998		2358
999	push @{ $ns->{query_queue} }, @$queue;	2359	push @{ $ns->{query_queue} }, @$queue;
1000		2360
1001	if (@{ $ns->{query_queue} } == @$queue) {	2361	if (@{ $ns->{query_queue} } == @$queue) {
1002	if (@$queue) {	2362	if (@$queue) {
…		…
1006	}	2366	}
1007	}	2367	}
1008	},	2368	},
1009	);	2369	);
1010		2370
1011	=item $client->coro (\&cb)	2371	=item $client->async (\&cb)
1012		2372
1013	Create a new coroutine, running the specified callback. The coroutine will	2373	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	2374	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	2375	or loss of connection).
1016		2376
1017	=cut	2377	=cut
1018		2378
1019	sub cf::client::coro {	2379	sub cf::client::async {
1020	my ($self, $cb) = @_;	2380	my ($self, $cb) = @_;
1021		2381
1022	my $coro; $coro = async {	2382	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		2383
1029	$coro->on_destroy (sub {	2384	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	2385	delete $self->{_coro}{$coro+0};
1031	});	2386	});
1032		2387
…		…
1065		2420
1066	# here we export the classes and methods available to script code	2421	# here we export the classes and methods available to script code
1067		2422
1068	=pod	2423	=pod
1069		2424
1070	The following fucntions and emthods are available within a safe environment:	2425	The following functions and methods are available within a safe environment:
1071		2426
1072	cf::object contr pay_amount pay_player map	2427	cf::object contr pay_amount pay_player map
1073	cf::object::player player	2428	cf::object::player player
1074	cf::player peaceful	2429	cf::player peaceful
1075	cf::map trigger	2430	cf::map trigger
…		…
1156	=back	2511	=back
1157		2512
1158	=cut	2513	=cut
1159		2514
1160	#############################################################################	2515	#############################################################################
		2516	# the server's init and main functions
1161		2517
1162	=head2 EXTENSION DATABASE SUPPORT	2518	sub load_facedata($) {
		2519	my ($path) = @_;
1163		2520
1164	Crossfire maintains a very simple database for extension use. It can	2521	warn "loading facedata from $path\n";
1165	currently store anything that can be serialised using Storable, which
1166	excludes objects.
1167		2522
1168	The parameter C<$family> should best start with the name of the extension	2523	my $facedata;
1169	using it, it should be unique.	2524	0 < aio_load $path, $facedata
		2525	or die "$path: $!";
1170		2526
1171	=over 4	2527	$facedata = Coro::Storable::thaw $facedata;
1172		2528
1173	=item $hashref = cf::db_get $family	2529	$facedata->{version} == 2
		2530	or cf::cleanup "$path: version mismatch, cannot proceed.";
1174		2531
1175	Return a hashref for use by the extension C<$family>, which can be
1176	modified. After modifications, you have to call C<cf::db_dirty> or
1177	C<cf::db_sync>.
1178
1179	=item $value = cf::db_get $family => $key
1180
1181	Returns a single value from the database
1182
1183	=item cf::db_put $family => $hashref
1184
1185	Stores the given family hashref into the database. Updates are delayed, if
1186	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1187
1188	=item cf::db_put $family => $key => $value
1189
1190	Stores the given C<$value> in the family hash. Updates are delayed, if you
1191	want the data to be synced to disk immediately, use C<cf::db_sync>.
1192
1193	=item cf::db_dirty
1194
1195	Marks the database as dirty, to be updated at a later time.
1196
1197	=item cf::db_sync
1198
1199	Immediately write the database to disk I<if it is dirty>.
1200
1201	=cut
1202
1203	our $DB;
1204
1205	{
1206	my $path = cf::localdir . "/database.pst";
1207
1208	sub db_load() {
1209	warn "loading database $path\n";#d# remove later
1210	$DB = stat $path ? Storable::retrieve $path : { };
1211	}	2532	{
		2533	my $faces = $facedata->{faceinfo};
1212		2534
1213	my $pid;	2535	while (my ($face, $info) = each %$faces) {
1214		2536	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1215	sub db_save() {	2537	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1216	warn "saving database $path\n";#d# remove later	2538	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1217	waitpid $pid, 0 if $pid;	2539	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1218	if (0 == ($pid = fork)) {	2540	Coro::cede;
1219	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;
1222	cf::_exit 0 if defined $pid;
1223	}
1224	}
1225
1226	my $dirty;
1227
1228	sub db_sync() {
1229	db_save if $dirty;
1230	undef $dirty;
1231	}
1232
1233	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1234	db_sync;
1235	});
1236
1237	sub db_dirty() {
1238	$dirty = 1;
1239	$idle->start;
1240	}
1241
1242	sub db_get($;$) {
1243	@_ >= 2
1244	? $DB->{$_[0]}{$_[1]}
1245	: ($DB->{$_[0]} ||= { })
1246	}
1247
1248	sub db_put($$;$) {
1249	if (@_ >= 3) {
1250	$DB->{$_[0]}{$_[1]} = $_[2];
1251	} else {
1252	$DB->{$_[0]} = $_[1];
1253	}
1254	db_dirty;
1255	}
1256
1257	cf::global->attach (
1258	prio => 10000,
1259	on_cleanup => sub {
1260	db_sync;
1261	},	2541	}
1262	);
1263	}
1264		2542
1265	#############################################################################	2543	while (my ($face, $info) = each %$faces) {
1266	# the server's main()	2544	next unless $info->{smooth};
		2545	my $idx = cf::face::find $face
		2546	or next;
		2547	if (my $smooth = cf::face::find $info->{smooth}) {
		2548	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2549	} else {
		2550	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2551	}
		2552	Coro::cede;
		2553	}
		2554	}
		2555
		2556	{
		2557	my $anims = $facedata->{animinfo};
		2558
		2559	while (my ($anim, $info) = each %$anims) {
		2560	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2561	Coro::cede;
		2562	}
		2563
		2564	cf::anim::invalidate_all; # d'oh
		2565	}
		2566
		2567	1
		2568	}
		2569
		2570	sub reload_regions {
		2571	load_resource_file "$MAPDIR/regions"
		2572	or die "unable to load regions file\n";
		2573	}
		2574
		2575	sub reload_facedata {
		2576	load_facedata "$DATADIR/facedata"
		2577	or die "unable to load facedata\n";
		2578	}
		2579
		2580	sub reload_archetypes {
		2581	load_resource_file "$DATADIR/archetypes"
		2582	or die "unable to load archetypes\n";
		2583	}
		2584
		2585	sub reload_treasures {
		2586	load_resource_file "$DATADIR/treasures"
		2587	or die "unable to load treasurelists\n";
		2588	}
		2589
		2590	sub reload_resources {
		2591	warn "reloading resource files...\n";
		2592
		2593	reload_regions;
		2594	reload_facedata;
		2595	#reload_archetypes;#d#
		2596	reload_archetypes;
		2597	reload_treasures;
		2598
		2599	warn "finished reloading resource files\n";
		2600	}
		2601
		2602	sub init {
		2603	reload_resources;
		2604	}
1267		2605
1268	sub cfg_load {	2606	sub cfg_load {
1269	open my $fh, "<:utf8", cf::confdir . "/config"	2607	open my $fh, "<:utf8", "$CONFDIR/config"
1270	or return;	2608	or return;
1271		2609
1272	local $/;	2610	local $/;
1273	*CFG = YAML::Syck::Load <$fh>;	2611	*CFG = YAML::Syck::Load <$fh>;
		2612
		2613	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2614
		2615	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2616	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2617
		2618	if (exists $CFG{mlockall}) {
		2619	eval {
		2620	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2621	and die "WARNING: m(un)lockall failed: $!\n";
		2622	};
		2623	warn $@ if $@;
		2624	}
1274	}	2625	}
1275		2626
1276	sub main {	2627	sub main {
		2628	# we must not ever block the main coroutine
		2629	local $Coro::idle = sub {
		2630	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2631	(async {
		2632	Event::one_event;
		2633	})->prio (Coro::PRIO_MAX);
		2634	};
		2635
1277	cfg_load;	2636	cfg_load;
1278	db_load;	2637	db_init;
1279	load_extensions;	2638	load_extensions;
		2639
		2640	$TICK_WATCHER->start;
1280	Event::loop;	2641	Event::loop;
1281	}	2642	}
1282		2643
1283	#############################################################################	2644	#############################################################################
1284	# initialisation	2645	# initialisation and cleanup
1285		2646
1286	sub perl_reload() {	2647	# install some emergency cleanup handlers
		2648	BEGIN {
		2649	for my $signal (qw(INT HUP TERM)) {
		2650	Event->signal (
		2651	reentrant => 0,
		2652	data => WF_AUTOCANCEL,
		2653	signal => $signal,
		2654	prio => 0,
		2655	cb => sub {
		2656	cf::cleanup "SIG$signal";
		2657	},
		2658	);
		2659	}
		2660	}
		2661
		2662	sub write_runtime {
		2663	my $runtime = "$LOCALDIR/runtime";
		2664
		2665	# first touch the runtime file to show we are still running:
		2666	# the fsync below can take a very very long time.
		2667
		2668	IO::AIO::aio_utime $runtime, undef, undef;
		2669
		2670	my $guard = cf::lock_acquire "write_runtime";
		2671
		2672	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2673	or return;
		2674
		2675	my $value = $cf::RUNTIME + 90 + 10;
		2676	# 10 is the runtime save interval, for a monotonic clock
		2677	# 60 allows for the watchdog to kill the server.
		2678
		2679	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2680	and return;
		2681
		2682	# always fsync - this file is important
		2683	aio_fsync $fh
		2684	and return;
		2685
		2686	# touch it again to show we are up-to-date
		2687	aio_utime $fh, undef, undef;
		2688
		2689	close $fh
		2690	or return;
		2691
		2692	aio_rename "$runtime~", $runtime
		2693	and return;
		2694
		2695	warn "runtime file written.\n";
		2696
		2697	1
		2698	}
		2699
		2700	sub emergency_save() {
		2701	my $freeze_guard = cf::freeze_mainloop;
		2702
		2703	warn "enter emergency perl save\n";
		2704
		2705	cf::sync_job {
		2706	# use a peculiar iteration method to avoid tripping on perl
		2707	# refcount bugs in for. also avoids problems with players
		2708	# and maps saved/destroyed asynchronously.
		2709	warn "begin emergency player save\n";
		2710	for my $login (keys %cf::PLAYER) {
		2711	my $pl = $cf::PLAYER{$login} or next;
		2712	$pl->valid or next;
		2713	$pl->save;
		2714	}
		2715	warn "end emergency player save\n";
		2716
		2717	warn "begin emergency map save\n";
		2718	for my $path (keys %cf::MAP) {
		2719	my $map = $cf::MAP{$path} or next;
		2720	$map->valid or next;
		2721	$map->save;
		2722	}
		2723	warn "end emergency map save\n";
		2724
		2725	warn "begin emergency database checkpoint\n";
		2726	BDB::db_env_txn_checkpoint $DB_ENV;
		2727	warn "end emergency database checkpoint\n";
		2728	};
		2729
		2730	warn "leave emergency perl save\n";
		2731	}
		2732
		2733	sub post_cleanup {
		2734	my ($make_core) = @_;
		2735
		2736	warn Carp::longmess "post_cleanup backtrace"
		2737	if $make_core;
		2738	}
		2739
		2740	sub do_reload_perl() {
1287	# can/must only be called in main	2741	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	2742	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	2743	warn "can only reload from main coroutine";
1290	return;	2744	return;
1291	}	2745	}
1292		2746
1293	warn "reloading...";	2747	warn "reloading...";
1294		2748
1295	local $FREEZE = 1;	2749	warn "entering sync_job";
		2750
		2751	cf::sync_job {
		2752	cf::write_runtime; # external watchdog should not bark
1296	cf::emergency_save;	2753	cf::emergency_save;
		2754	cf::write_runtime; # external watchdog should not bark
1297		2755
1298	eval {	2756	warn "syncing database to disk";
		2757	BDB::db_env_txn_checkpoint $DB_ENV;
		2758
1299	# if anything goes wrong in here, we should simply crash as we already saved	2759	# if anything goes wrong in here, we should simply crash as we already saved
1300		2760
1301	# cancel all watchers	2761	warn "cancelling all WF_AUTOCANCEL watchers";
1302	for (Event::all_watchers) {	2762	for (Event::all_watchers) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	2763	$_->cancel if $_->data & WF_AUTOCANCEL;
1304	}	2764	}
1305		2765
		2766	warn "flushing outstanding aio requests";
		2767	for (;;) {
		2768	BDB::flush;
		2769	IO::AIO::flush;
		2770	Coro::cede;
		2771	last unless IO::AIO::nreqs || BDB::nreqs;
		2772	warn "iterate...";
		2773	}
		2774
		2775	++$RELOAD;
		2776
1306	# cancel all extension coros	2777	warn "cancelling all extension coros";
1307	$_->cancel for values %EXT_CORO;	2778	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();	2779	%EXT_CORO = ();
1309		2780
1310	# unload all extensions	2781	warn "removing commands";
1311	for (@exts) {	2782	%COMMAND = ();
		2783
		2784	warn "removing ext commands";
		2785	%EXTCMD = ();
		2786
		2787	warn "unloading/nuking all extensions";
		2788	for my $pkg (@EXTS) {
1312	warn "unloading <$_>";	2789	warn "... unloading $pkg";
1313	unload_extension $_;	2790
		2791	if (my $cb = $pkg->can ("unload")) {
		2792	eval {
		2793	$cb->($pkg);
		2794	1
		2795	} or warn "$pkg unloaded, but with errors: $@";
1314	}	2796	}
1315		2797
		2798	warn "... nuking $pkg";
		2799	Symbol::delete_package $pkg;
		2800	}
		2801
1316	# unload all modules loaded from $LIBDIR	2802	warn "unloading all perl modules loaded from $LIBDIR";
1317	while (my ($k, $v) = each %INC) {	2803	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2804	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319		2805
1320	warn "removing <$k>";	2806	warn "... unloading $k";
1321	delete $INC{$k};	2807	delete $INC{$k};
1322		2808
1323	$k =~ s/\.pm$//;	2809	$k =~ s/\.pm$//;
1324	$k =~ s/\//::/g;	2810	$k =~ s/\//::/g;
1325		2811
…		…
1328	}	2814	}
1329		2815
1330	Symbol::delete_package $k;	2816	Symbol::delete_package $k;
1331	}	2817	}
1332		2818
1333	# sync database to disk
1334	cf::db_sync;
1335	IO::AIO::flush;
1336
1337	# get rid of safe::, as good as possible	2819	warn "getting rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	2820	Symbol::delete_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2821	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		2822
1341	# remove register_script_function callbacks
1342	# TODO
1343
1344	# unload cf.pm "a bit"	2823	warn "unloading cf.pm \"a bit\"";
1345	delete $INC{"cf.pm"};	2824	delete $INC{"cf.pm"};
		2825	delete $INC{"cf/pod.pm"};
1346		2826
1347	# don't, removes xs symbols, too,	2827	# don't, removes xs symbols, too,
1348	# and global variables created in xs	2828	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	2829	#Symbol::delete_package __PACKAGE__;
1350		2830
1351	# reload cf.pm	2831	warn "unload completed, starting to reload now";
		2832
1352	warn "reloading cf.pm";	2833	warn "reloading cf.pm";
1353	require cf;	2834	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		2836
1356	# load config and database again	2837	warn "loading config and database again";
1357	cf::cfg_load;	2838	cf::cfg_load;
1358	cf::db_load;
1359		2839
1360	# load extensions
1361	warn "load extensions";	2840	warn "loading extensions";
1362	cf::load_extensions;	2841	cf::load_extensions;
1363		2842
1364	# reattach attachments to objects	2843	warn "reattaching attachments to objects/players";
1365	warn "reattach";	2844	_global_reattach; # objects, sockets
1366	_global_reattach;	2845	warn "reattaching attachments to maps";
1367	};	2846	reattach $_ for values %MAP;
		2847	warn "reattaching attachments to players";
		2848	reattach $_ for values %PLAYER;
1368		2849
1369	if ($@) {	2850	warn "leaving sync_job";
		2851
		2852	1
		2853	} or do {
1370	warn $@;	2854	warn $@;
1371	warn "error while reloading, exiting.";	2855	warn "error while reloading, exiting.";
1372	exit 1;	2856	exit 1;
1373	}	2857	};
1374		2858
1375	warn "reloaded successfully";	2859	warn "reloaded";
1376	};	2860	};
1377		2861
1378	register "<global>", __PACKAGE__;	2862	our $RELOAD_WATCHER; # used only during reload
1379		2863
		2864	sub reload_perl() {
		2865	# doing reload synchronously and two reloads happen back-to-back,
		2866	# coro crashes during coro_state_free->destroy here.
		2867
		2868	$RELOAD_WATCHER ||= Event->timer (
		2869	reentrant => 0,
		2870	after => 0,
		2871	data => WF_AUTOCANCEL,
		2872	cb => sub {
		2873	do_reload_perl;
		2874	undef $RELOAD_WATCHER;
		2875	},
		2876	);
		2877	}
		2878
1380	register_command "perl-reload" => sub {	2879	register_command "reload" => sub {
1381	my ($who, $arg) = @_;	2880	my ($who, $arg) = @_;
1382		2881
1383	if ($who->flag (FLAG_WIZ)) {	2882	if ($who->flag (FLAG_WIZ)) {
1384	$who->message ("start of reload.");
1385	perl_reload;
1386	$who->message ("end of reload.");	2883	$who->message ("reloading server.");
		2884	async { reload_perl };
1387	}	2885	}
1388	};	2886	};
1389		2887
1390	unshift @INC, $LIBDIR;	2888	unshift @INC, $LIBDIR;
1391		2889
		2890	my $bug_warning = 0;
		2891
		2892	our @WAIT_FOR_TICK;
		2893	our @WAIT_FOR_TICK_BEGIN;
		2894
		2895	sub wait_for_tick {
		2896	return unless $TICK_WATCHER->is_active;
		2897	return if $Coro::current == $Coro::main;
		2898
		2899	my $signal = new Coro::Signal;
		2900	push @WAIT_FOR_TICK, $signal;
		2901	$signal->wait;
		2902	}
		2903
		2904	sub wait_for_tick_begin {
		2905	return unless $TICK_WATCHER->is_active;
		2906	return if $Coro::current == $Coro::main;
		2907
		2908	my $signal = new Coro::Signal;
		2909	push @WAIT_FOR_TICK_BEGIN, $signal;
		2910	$signal->wait;
		2911	}
		2912
		2913	my $min = 1e6;#d#
		2914	my $avg = 10;
1392	$TICK_WATCHER = Event->timer (	2915	$TICK_WATCHER = Event->timer (
1393	reentrant => 0,	2916	reentrant => 0,
		2917	parked => 1,
1394	prio => 0,	2918	prio => 0,
1395	at => $NEXT_TICK || $TICK,	2919	at => $NEXT_TICK || $TICK,
1396	data => WF_AUTOCANCEL,	2920	data => WF_AUTOCANCEL,
1397	cb => sub {	2921	cb => sub {
1398	unless ($FREEZE) {	2922	if ($Coro::current != $Coro::main) {
		2923	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2924	unless ++$bug_warning > 10;
		2925	return;
		2926	}
		2927
		2928	$NOW = $tick_start = Event::time;
		2929
1399	cf::server_tick; # one server iteration	2930	cf::server_tick; # one server iteration
1400	$RUNTIME += $TICK;	2931
		2932	0 && sync_job {#d#
		2933	for(1..10) {
		2934	my $t = Event::time;
		2935	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2936	or die;
		2937
		2938	$map->width (50);
		2939	$map->height (50);
		2940	$map->alloc;
		2941	$map->_load_objects ("/tmp/x.map", 1);
		2942	my $t = Event::time - $t;
		2943
		2944	#next unless $t < 0.0013;#d#
		2945	if ($t < $min) {
		2946	$min = $t;
		2947	}
		2948	$avg = $avg * 0.99 + $t * 0.01;
		2949	}
		2950	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2951	exit 0;
		2952	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1401	}	2953	};
1402		2954
		2955	$RUNTIME += $TICK;
1403	$NEXT_TICK += $TICK;	2956	$NEXT_TICK += $TICK;
1404		2957
		2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2959	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2960	Coro::async_pool {
		2961	write_runtime
		2962	or warn "ERROR: unable to write runtime file: $!";
		2963	};
		2964	}
		2965
		2966	# my $AFTER = Event::time;
		2967	# warn $AFTER - $NOW;#d#
		2968
		2969	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2970	$sig->send;
		2971	}
		2972	while (my $sig = shift @WAIT_FOR_TICK) {
		2973	$sig->send;
		2974	}
		2975
		2976	$NOW = Event::time;
		2977
1405	# if we are delayed by four ticks or more, skip them all	2978	# if we are delayed by four ticks or more, skip them all
1406	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1407		2980
1408	$TICK_WATCHER->at ($NEXT_TICK);	2981	$TICK_WATCHER->at ($NEXT_TICK);
1409	$TICK_WATCHER->start;	2982	$TICK_WATCHER->start;
		2983
		2984	$LOAD = ($NOW - $tick_start) / $TICK;
		2985	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2986
		2987	_post_tick;
		2988
		2989
1410	},	2990	},
1411	);	2991	);
1412		2992
		2993	{
		2994	BDB::max_poll_time $TICK * 0.1;
		2995	$BDB_POLL_WATCHER = Event->io (
		2996	reentrant => 0,
		2997	fd => BDB::poll_fileno,
		2998	poll => 'r',
		2999	prio => 0,
		3000	data => WF_AUTOCANCEL,
		3001	cb => \&BDB::poll_cb,
		3002	);
		3003	BDB::min_parallel 8;
		3004
		3005	BDB::set_sync_prepare {
		3006	my $status;
		3007	my $current = $Coro::current;
		3008	(
		3009	sub {
		3010	$status = $!;
		3011	$current->ready; undef $current;
		3012	},
		3013	sub {
		3014	Coro::schedule while defined $current;
		3015	$! = $status;
		3016	},
		3017	)
		3018	};
		3019
		3020	unless ($DB_ENV) {
		3021	$DB_ENV = BDB::db_env_create;
		3022
		3023	cf::sync_job {
		3024	eval {
		3025	BDB::db_env_open
		3026	$DB_ENV,
		3027	$BDBDIR,
		3028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3030	0666;
		3031
		3032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3033
		3034	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3035	$DB_ENV->set_lk_detect;
		3036	};
		3037
		3038	cf::cleanup "db_env_open(db): $@" if $@;
		3039	};
		3040	}
		3041	}
		3042
		3043	{
		3044	IO::AIO::min_parallel 8;
		3045
		3046	undef $Coro::AIO::WATCHER;
1413	IO::AIO::max_poll_time $TICK * 0.2;	3047	IO::AIO::max_poll_time $TICK * 0.1;
1414		3048	$AIO_POLL_WATCHER = Event->io (
1415	Event->io (fd => IO::AIO::poll_fileno,	3049	reentrant => 0,
1416	poll => 'r',
1417	prio => 5,
1418	data => WF_AUTOCANCEL,	3050	data => WF_AUTOCANCEL,
		3051	fd => IO::AIO::poll_fileno,
		3052	poll => 'r',
		3053	prio => 6,
1419	cb => \&IO::AIO::poll_cb);	3054	cb => \&IO::AIO::poll_cb,
		3055	);
		3056	}
1420		3057
1421	# we must not ever block the main coroutine	3058	my $_log_backtrace;
1422	$Coro::idle = sub {	3059
1423	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3060	sub _log_backtrace {
1424	warn "FATAL: Coro::idle was called, major BUG\n";	3061	my ($msg, @addr) = @_;
1425	(Coro::unblock_sub {	3062
1426	Event::one_event;	3063	$msg =~ s/\n//;
1427	})->();	3064
1428	};	3065	# limit the # of concurrent backtraces
		3066	if ($_log_backtrace < 2) {
		3067	++$_log_backtrace;
		3068	async {
		3069	my @bt = fork_call {
		3070	@addr = map { sprintf "%x", $_ } @addr;
		3071	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3072	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3073	or die "addr2line: $!";
		3074
		3075	my @funcs;
		3076	my @res = <$fh>;
		3077	chomp for @res;
		3078	while (@res) {
		3079	my ($func, $line) = splice @res, 0, 2, ();
		3080	push @funcs, "[$func] $line";
		3081	}
		3082
		3083	@funcs
		3084	};
		3085
		3086	LOG llevInfo, "[ABT] $msg\n";
		3087	LOG llevInfo, "[ABT] $_\n" for @bt;
		3088	--$_log_backtrace;
		3089	};
		3090	} else {
		3091	LOG llevInfo, "[ABT] $msg\n";
		3092	LOG llevInfo, "[ABT] [suppressed]\n";
		3093	}
		3094	}
		3095
		3096	# load additional modules
		3097	use cf::pod;
		3098
		3099	END { cf::emergency_save }
1429		3100
1430	1	3101	1
1431		3102

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