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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.106 by root, Sun Dec 31 17:29:22 2006 UTC vs.
Revision 1.282 by elmex, Tue Jun 19 18:15:34 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
…		…
916		2045
917	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2046	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
918		2047
919	if ($self->{record_replies}) {	2048	if ($self->{record_replies}) {
920	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2049	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2050
921	} else {	2051	} else {
		2052	my $pl = $self->contr;
		2053
		2054	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2055	my $diag = $pl->{npc_dialog};
		2056	$diag->{pl}->ext_reply (
		2057	$diag->{id}, msgtype => "reply", msg => $msg, add_topics => []
		2058	);
		2059
		2060	} else {
922	$msg = $npc->name . " says: $msg" if $npc;	2061	$msg = $npc->name . " says: $msg" if $npc;
923	$self->message ($msg, $flags);	2062	$self->message ($msg, $flags);
		2063	}
924	}	2064	}
925	}	2065	}
926		2066
927	=item $player_object->may ("access")	2067	=item $player_object->may ("access")
928		2068
…		…
938	(ref $cf::CFG{"may_$access"}	2078	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2079	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	2080	: $cf::CFG{"may_$access"})
941	}	2081	}
942		2082
		2083	=item $player_object->enter_link
		2084
		2085	Freezes the player and moves him/her to a special map (C<{link}>).
		2086
		2087	The player should be reasonably safe there for short amounts of time. You
		2088	I<MUST> call C<leave_link> as soon as possible, though.
		2089
		2090	Will never block.
		2091
		2092	=item $player_object->leave_link ($map, $x, $y)
		2093
		2094	Moves the player out of the special C<{link}> map onto the specified
		2095	map. If the map is not valid (or omitted), the player will be moved back
		2096	to the location he/she was before the call to C<enter_link>, or, if that
		2097	fails, to the emergency map position.
		2098
		2099	Might block.
		2100
		2101	=cut
		2102
		2103	sub link_map {
		2104	unless ($LINK_MAP) {
		2105	$LINK_MAP = cf::map::find "{link}"
		2106	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2107	$LINK_MAP->load;
		2108	}
		2109
		2110	$LINK_MAP
		2111	}
		2112
		2113	sub cf::object::player::enter_link {
		2114	my ($self) = @_;
		2115
		2116	$self->deactivate_recursive;
		2117
		2118	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2119
		2120	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2121	if $self->map && $self->map->{path} ne "{link}";
		2122
		2123	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2124	}
		2125
		2126	sub cf::object::player::leave_link {
		2127	my ($self, $map, $x, $y) = @_;
		2128
		2129	return unless $self->contr->active;
		2130
		2131	my $link_pos = delete $self->{_link_pos};
		2132
		2133	unless ($map) {
		2134	# restore original map position
		2135	($map, $x, $y) = @{ $link_pos || [] };
		2136	$map = cf::map::find $map;
		2137
		2138	unless ($map) {
		2139	($map, $x, $y) = @$EMERGENCY_POSITION;
		2140	$map = cf::map::find $map
		2141	or die "FATAL: cannot load emergency map\n";
		2142	}
		2143	}
		2144
		2145	($x, $y) = (-1, -1)
		2146	unless (defined $x) && (defined $y);
		2147
		2148	# use -1 or undef as default coordinates, not 0, 0
		2149	($x, $y) = ($map->enter_x, $map->enter_y)
		2150	if $x <=0 && $y <= 0;
		2151
		2152	$map->load;
		2153	$map->load_diag;
		2154
		2155	return unless $self->contr->active;
		2156	$self->activate_recursive;
		2157
		2158	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2159	$self->enter_map ($map, $x, $y);
		2160	}
		2161
		2162	=item $player_object->goto ($path, $x, $y[, $check->($map)])
		2163
		2164	Moves the player to the given map-path and coordinates by first freezing
		2165	her, loading and preparing them map, calling the provided $check callback
		2166	that has to return the map if sucecssful, and then unfreezes the player on
		2167	the new (success) or old (failed) map position.
		2168
		2169	=cut
		2170
		2171	our $GOTOGEN;
		2172
		2173	sub cf::object::player::goto {
		2174	my ($self, $path, $x, $y, $check) = @_;
		2175
		2176	# do generation counting so two concurrent goto's will be executed in-order
		2177	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2178
		2179	$self->enter_link;
		2180
		2181	(async {
		2182	my $map = eval {
		2183	my $map = cf::map::find $path;
		2184
		2185	if ($map) {
		2186	$map = $map->customise_for ($self);
		2187	$map = $check->($map) if $check && $map;
		2188	} else {
		2189	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2190	}
		2191
		2192	$map
		2193	};
		2194
		2195	if ($@) {
		2196	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2197	LOG llevError | logBacktrace, Carp::longmess $@;
		2198	}
		2199
		2200	if ($gen == $self->{_goto_generation}) {
		2201	delete $self->{_goto_generation};
		2202	$self->leave_link ($map, $x, $y);
		2203	}
		2204	})->prio (1);
		2205	}
		2206
		2207	=item $player_object->enter_exit ($exit_object)
		2208
		2209	=cut
		2210
		2211	sub parse_random_map_params {
		2212	my ($spec) = @_;
		2213
		2214	my $rmp = { # defaults
		2215	xsize => (cf::rndm 15, 40),
		2216	ysize => (cf::rndm 15, 40),
		2217	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2218	#layout => string,
		2219	};
		2220
		2221	for (split /\n/, $spec) {
		2222	my ($k, $v) = split /\s+/, $_, 2;
		2223
		2224	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2225	}
		2226
		2227	$rmp
		2228	}
		2229
		2230	sub prepare_random_map {
		2231	my ($exit) = @_;
		2232
		2233	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2234
		2235	# all this does is basically replace the /! path by
		2236	# a new random map path (?random/...) with a seed
		2237	# that depends on the exit object
		2238
		2239	my $rmp = parse_random_map_params $exit->msg;
		2240
		2241	if ($exit->map) {
		2242	$rmp->{region} = $exit->region->name;
		2243	$rmp->{origin_map} = $exit->map->path;
		2244	$rmp->{origin_x} = $exit->x;
		2245	$rmp->{origin_y} = $exit->y;
		2246	}
		2247
		2248	$rmp->{random_seed} ||= $exit->random_seed;
		2249
		2250	my $data = cf::to_json $rmp;
		2251	my $md5 = Digest::MD5::md5_hex $data;
		2252	my $meta = "$RANDOMDIR/$md5.meta";
		2253
		2254	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2255	aio_write $fh, 0, (length $data), $data, 0;
		2256	undef $fh;
		2257	aio_rename "$meta~", $meta;
		2258
		2259	$exit->slaying ("?random/$md5");
		2260	$exit->msg (undef);
		2261	}
		2262	}
		2263
		2264	sub cf::object::player::enter_exit {
		2265	my ($self, $exit) = @_;
		2266
		2267	return unless $self->type == cf::PLAYER;
		2268
		2269	if ($exit->slaying eq "/!") {
		2270	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2271	# the problem is that $exit might not survive long enough
		2272	# so it needs to be done right now, right here
		2273	cf::sync_job { prepare_random_map $exit };
		2274	}
		2275
		2276	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2277	my $hp = $exit->stats->hp;
		2278	my $sp = $exit->stats->sp;
		2279
		2280	$self->enter_link;
		2281
		2282	(async {
		2283	$self->deactivate_recursive; # just to be sure
		2284	unless (eval {
		2285	$self->goto ($slaying, $hp, $sp);
		2286
		2287	1;
		2288	}) {
		2289	$self->message ("Something went wrong deep within the crossfire server. "
		2290	. "I'll try to bring you back to the map you were before. "
		2291	. "Please report this to the dungeon master!",
		2292	cf::NDI_UNIQUE | cf::NDI_RED);
		2293
		2294	warn "ERROR in enter_exit: $@";
		2295	$self->leave_link;
		2296	}
		2297	})->prio (1);
		2298	}
		2299
943	=head3 cf::client	2300	=head3 cf::client
944		2301
945	=over 4	2302	=over 4
946		2303
947	=item $client->send_drawinfo ($text, $flags)	2304	=item $client->send_drawinfo ($text, $flags)
…		…
953		2310
954	sub cf::client::send_drawinfo {	2311	sub cf::client::send_drawinfo {
955	my ($self, $text, $flags) = @_;	2312	my ($self, $text, $flags) = @_;
956		2313
957	utf8::encode $text;	2314	utf8::encode $text;
958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2315	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
959	}	2316	}
960		2317
		2318	=item $client->ext_event ($type, %msg)
		2319
		2320	Sends an exti event to the client.
		2321
		2322	=cut
		2323
		2324	sub cf::client::ext_event($$%) {
		2325	my ($self, $type, %msg) = @_;
		2326
		2327	$msg{msgtype} = "event_$type";
		2328	$self->send_packet ("ext " . cf::to_json \%msg);
		2329	}
961		2330
962	=item $success = $client->query ($flags, "text", \&cb)	2331	=item $success = $client->query ($flags, "text", \&cb)
963		2332
964	Queues a query to the client, calling the given callback with	2333	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>,	2334	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
990	on_reply => sub {	2359	on_reply => sub {
991	my ($ns, $msg) = @_;	2360	my ($ns, $msg) = @_;
992		2361
993	# this weird shuffling is so that direct followup queries	2362	# this weird shuffling is so that direct followup queries
994	# get handled first	2363	# get handled first
995	my $queue = delete $ns->{query_queue};	2364	my $queue = delete $ns->{query_queue}
		2365	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		2366
997	(shift @$queue)->[1]->($msg);	2367	(shift @$queue)->[1]->($msg);
		2368	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
998		2369
999	push @{ $ns->{query_queue} }, @$queue;	2370	push @{ $ns->{query_queue} }, @$queue;
1000		2371
1001	if (@{ $ns->{query_queue} } == @$queue) {	2372	if (@{ $ns->{query_queue} } == @$queue) {
1002	if (@$queue) {	2373	if (@$queue) {
…		…
1006	}	2377	}
1007	}	2378	}
1008	},	2379	},
1009	);	2380	);
1010		2381
1011	=item $client->coro (\&cb)	2382	=item $client->async (\&cb)
1012		2383
1013	Create a new coroutine, running the specified callback. The coroutine will	2384	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	2385	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	2386	or loss of connection).
1016		2387
1017	=cut	2388	=cut
1018		2389
1019	sub cf::client::coro {	2390	sub cf::client::async {
1020	my ($self, $cb) = @_;	2391	my ($self, $cb) = @_;
1021		2392
1022	my $coro; $coro = async {	2393	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		2394
1029	$coro->on_destroy (sub {	2395	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	2396	delete $self->{_coro}{$coro+0};
1031	});	2397	});
1032		2398
…		…
1065		2431
1066	# here we export the classes and methods available to script code	2432	# here we export the classes and methods available to script code
1067		2433
1068	=pod	2434	=pod
1069		2435
1070	The following fucntions and emthods are available within a safe environment:	2436	The following functions and methods are available within a safe environment:
1071		2437
1072	cf::object contr pay_amount pay_player map	2438	cf::object contr pay_amount pay_player map
1073	cf::object::player player	2439	cf::object::player player
1074	cf::player peaceful	2440	cf::player peaceful
1075	cf::map trigger	2441	cf::map trigger
…		…
1156	=back	2522	=back
1157		2523
1158	=cut	2524	=cut
1159		2525
1160	#############################################################################	2526	#############################################################################
		2527	# the server's init and main functions
1161		2528
1162	=head2 EXTENSION DATABASE SUPPORT	2529	sub load_facedata($) {
		2530	my ($path) = @_;
1163		2531
1164	Crossfire maintains a very simple database for extension use. It can	2532	warn "loading facedata from $path\n";
1165	currently store anything that can be serialised using Storable, which
1166	excludes objects.
1167		2533
1168	The parameter C<$family> should best start with the name of the extension	2534	my $facedata;
1169	using it, it should be unique.	2535	0 < aio_load $path, $facedata
		2536	or die "$path: $!";
1170		2537
1171	=over 4	2538	$facedata = Coro::Storable::thaw $facedata;
1172		2539
1173	=item $hashref = cf::db_get $family	2540	$facedata->{version} == 2
		2541	or cf::cleanup "$path: version mismatch, cannot proceed.";
1174		2542
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	}	2543	{
		2544	my $faces = $facedata->{faceinfo};
1212		2545
1213	my $pid;	2546	while (my ($face, $info) = each %$faces) {
1214		2547	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1215	sub db_save() {	2548	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1216	warn "saving database $path\n";#d# remove later	2549	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1217	waitpid $pid, 0 if $pid;	2550	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1218	if (0 == ($pid = fork)) {	2551	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]} = $_[1];
1253	}
1254	db_dirty;
1255	}
1256
1257	cf::global->attach (
1258	prio => 10000,
1259	on_cleanup => sub {
1260	db_sync;
1261	},	2552	}
1262	);
1263	}
1264		2553
1265	#############################################################################	2554	while (my ($face, $info) = each %$faces) {
1266	# the server's main()	2555	next unless $info->{smooth};
		2556	my $idx = cf::face::find $face
		2557	or next;
		2558	if (my $smooth = cf::face::find $info->{smooth}) {
		2559	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2560	} else {
		2561	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2562	}
		2563	Coro::cede;
		2564	}
		2565	}
		2566
		2567	{
		2568	my $anims = $facedata->{animinfo};
		2569
		2570	while (my ($anim, $info) = each %$anims) {
		2571	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2572	Coro::cede;
		2573	}
		2574
		2575	cf::anim::invalidate_all; # d'oh
		2576	}
		2577
		2578	1
		2579	}
		2580
		2581	sub reload_regions {
		2582	load_resource_file "$MAPDIR/regions"
		2583	or die "unable to load regions file\n";
		2584	}
		2585
		2586	sub reload_facedata {
		2587	load_facedata "$DATADIR/facedata"
		2588	or die "unable to load facedata\n";
		2589	}
		2590
		2591	sub reload_archetypes {
		2592	load_resource_file "$DATADIR/archetypes"
		2593	or die "unable to load archetypes\n";
		2594	}
		2595
		2596	sub reload_treasures {
		2597	load_resource_file "$DATADIR/treasures"
		2598	or die "unable to load treasurelists\n";
		2599	}
		2600
		2601	sub reload_resources {
		2602	warn "reloading resource files...\n";
		2603
		2604	reload_regions;
		2605	reload_facedata;
		2606	#reload_archetypes;#d#
		2607	reload_archetypes;
		2608	reload_treasures;
		2609
		2610	warn "finished reloading resource files\n";
		2611	}
		2612
		2613	sub init {
		2614	reload_resources;
		2615	}
1267		2616
1268	sub cfg_load {	2617	sub cfg_load {
1269	open my $fh, "<:utf8", cf::confdir . "/config"	2618	open my $fh, "<:utf8", "$CONFDIR/config"
1270	or return;	2619	or return;
1271		2620
1272	local $/;	2621	local $/;
1273	*CFG = YAML::Syck::Load <$fh>;	2622	*CFG = YAML::Syck::Load <$fh>;
		2623
		2624	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2625
		2626	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2627	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2628
		2629	if (exists $CFG{mlockall}) {
		2630	eval {
		2631	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2632	and die "WARNING: m(un)lockall failed: $!\n";
		2633	};
		2634	warn $@ if $@;
		2635	}
1274	}	2636	}
1275		2637
1276	sub main {	2638	sub main {
		2639	# we must not ever block the main coroutine
		2640	local $Coro::idle = sub {
		2641	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2642	(async {
		2643	Event::one_event;
		2644	})->prio (Coro::PRIO_MAX);
		2645	};
		2646
1277	cfg_load;	2647	cfg_load;
1278	db_load;	2648	db_init;
1279	load_extensions;	2649	load_extensions;
		2650
		2651	$TICK_WATCHER->start;
1280	Event::loop;	2652	Event::loop;
1281	}	2653	}
1282		2654
1283	#############################################################################	2655	#############################################################################
1284	# initialisation	2656	# initialisation and cleanup
1285		2657
1286	sub _perl_reload() {	2658	# install some emergency cleanup handlers
		2659	BEGIN {
		2660	for my $signal (qw(INT HUP TERM)) {
		2661	Event->signal (
		2662	reentrant => 0,
		2663	data => WF_AUTOCANCEL,
		2664	signal => $signal,
		2665	prio => 0,
		2666	cb => sub {
		2667	cf::cleanup "SIG$signal";
		2668	},
		2669	);
		2670	}
		2671	}
		2672
		2673	sub write_runtime {
		2674	my $runtime = "$LOCALDIR/runtime";
		2675
		2676	# first touch the runtime file to show we are still running:
		2677	# the fsync below can take a very very long time.
		2678
		2679	IO::AIO::aio_utime $runtime, undef, undef;
		2680
		2681	my $guard = cf::lock_acquire "write_runtime";
		2682
		2683	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2684	or return;
		2685
		2686	my $value = $cf::RUNTIME + 90 + 10;
		2687	# 10 is the runtime save interval, for a monotonic clock
		2688	# 60 allows for the watchdog to kill the server.
		2689
		2690	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2691	and return;
		2692
		2693	# always fsync - this file is important
		2694	aio_fsync $fh
		2695	and return;
		2696
		2697	# touch it again to show we are up-to-date
		2698	aio_utime $fh, undef, undef;
		2699
		2700	close $fh
		2701	or return;
		2702
		2703	aio_rename "$runtime~", $runtime
		2704	and return;
		2705
		2706	warn "runtime file written.\n";
		2707
		2708	1
		2709	}
		2710
		2711	sub emergency_save() {
		2712	my $freeze_guard = cf::freeze_mainloop;
		2713
		2714	warn "enter emergency perl save\n";
		2715
		2716	cf::sync_job {
		2717	# use a peculiar iteration method to avoid tripping on perl
		2718	# refcount bugs in for. also avoids problems with players
		2719	# and maps saved/destroyed asynchronously.
		2720	warn "begin emergency player save\n";
		2721	for my $login (keys %cf::PLAYER) {
		2722	my $pl = $cf::PLAYER{$login} or next;
		2723	$pl->valid or next;
		2724	$pl->save;
		2725	}
		2726	warn "end emergency player save\n";
		2727
		2728	warn "begin emergency map save\n";
		2729	for my $path (keys %cf::MAP) {
		2730	my $map = $cf::MAP{$path} or next;
		2731	$map->valid or next;
		2732	$map->save;
		2733	}
		2734	warn "end emergency map save\n";
		2735
		2736	warn "begin emergency database checkpoint\n";
		2737	BDB::db_env_txn_checkpoint $DB_ENV;
		2738	warn "end emergency database checkpoint\n";
		2739	};
		2740
		2741	warn "leave emergency perl save\n";
		2742	}
		2743
		2744	sub post_cleanup {
		2745	my ($make_core) = @_;
		2746
		2747	warn Carp::longmess "post_cleanup backtrace"
		2748	if $make_core;
		2749	}
		2750
		2751	sub do_reload_perl() {
1287	# can/must only be called in main	2752	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	2753	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	2754	warn "can only reload from main coroutine";
1290	return;	2755	return;
1291	}	2756	}
1292		2757
1293	warn "reloading...";	2758	warn "reloading...";
1294		2759
1295	local $FREEZE = 1;	2760	warn "entering sync_job";
		2761
		2762	cf::sync_job {
		2763	cf::write_runtime; # external watchdog should not bark
1296	cf::emergency_save;	2764	cf::emergency_save;
		2765	cf::write_runtime; # external watchdog should not bark
1297		2766
1298	eval {	2767	warn "syncing database to disk";
		2768	BDB::db_env_txn_checkpoint $DB_ENV;
		2769
1299	# if anything goes wrong in here, we should simply crash as we already saved	2770	# if anything goes wrong in here, we should simply crash as we already saved
1300		2771
1301	# cancel all watchers	2772	warn "cancelling all WF_AUTOCANCEL watchers";
1302	for (Event::all_watchers) {	2773	for (Event::all_watchers) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	2774	$_->cancel if $_->data & WF_AUTOCANCEL;
1304	}	2775	}
1305		2776
		2777	warn "flushing outstanding aio requests";
		2778	for (;;) {
		2779	BDB::flush;
		2780	IO::AIO::flush;
		2781	Coro::cede;
		2782	last unless IO::AIO::nreqs || BDB::nreqs;
		2783	warn "iterate...";
		2784	}
		2785
		2786	++$RELOAD;
		2787
1306	# cancel all extension coros	2788	warn "cancelling all extension coros";
1307	$_->cancel for values %EXT_CORO;	2789	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();	2790	%EXT_CORO = ();
1309		2791
1310	# unload all extensions	2792	warn "removing commands";
1311	for (@exts) {	2793	%COMMAND = ();
		2794
		2795	warn "removing ext commands";
		2796	%EXTCMD = ();
		2797
		2798	warn "unloading/nuking all extensions";
		2799	for my $pkg (@EXTS) {
1312	warn "unloading <$_>";	2800	warn "... unloading $pkg";
1313	unload_extension $_;	2801
		2802	if (my $cb = $pkg->can ("unload")) {
		2803	eval {
		2804	$cb->($pkg);
		2805	1
		2806	} or warn "$pkg unloaded, but with errors: $@";
1314	}	2807	}
1315		2808
		2809	warn "... nuking $pkg";
		2810	Symbol::delete_package $pkg;
		2811	}
		2812
1316	# unload all modules loaded from $LIBDIR	2813	warn "unloading all perl modules loaded from $LIBDIR";
1317	while (my ($k, $v) = each %INC) {	2814	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2815	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319		2816
1320	warn "removing <$k>";	2817	warn "... unloading $k";
1321	delete $INC{$k};	2818	delete $INC{$k};
1322		2819
1323	$k =~ s/\.pm$//;	2820	$k =~ s/\.pm$//;
1324	$k =~ s/\//::/g;	2821	$k =~ s/\//::/g;
1325		2822
…		…
1328	}	2825	}
1329		2826
1330	Symbol::delete_package $k;	2827	Symbol::delete_package $k;
1331	}	2828	}
1332		2829
1333	# sync database to disk
1334	cf::db_sync;
1335	IO::AIO::flush;
1336
1337	# get rid of safe::, as good as possible	2830	warn "getting rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	2831	Symbol::delete_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2832	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		2833
1341	# remove register_script_function callbacks
1342	# TODO
1343
1344	# unload cf.pm "a bit"	2834	warn "unloading cf.pm \"a bit\"";
1345	delete $INC{"cf.pm"};	2835	delete $INC{"cf.pm"};
		2836	delete $INC{"cf/pod.pm"};
1346		2837
1347	# don't, removes xs symbols, too,	2838	# don't, removes xs symbols, too,
1348	# and global variables created in xs	2839	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	2840	#Symbol::delete_package __PACKAGE__;
1350		2841
1351	# reload cf.pm	2842	warn "unload completed, starting to reload now";
		2843
1352	warn "reloading cf.pm";	2844	warn "reloading cf.pm";
1353	require cf;	2845	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2846	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		2847
1356	# load config and database again	2848	warn "loading config and database again";
1357	cf::cfg_load;	2849	cf::cfg_load;
1358	cf::db_load;
1359		2850
1360	# load extensions
1361	warn "load extensions";	2851	warn "loading extensions";
1362	cf::load_extensions;	2852	cf::load_extensions;
1363		2853
1364	# reattach attachments to objects	2854	warn "reattaching attachments to objects/players";
1365	warn "reattach";	2855	_global_reattach; # objects, sockets
1366	_global_reattach;	2856	warn "reattaching attachments to maps";
1367	};	2857	reattach $_ for values %MAP;
		2858	warn "reattaching attachments to players";
		2859	reattach $_ for values %PLAYER;
1368		2860
1369	if ($@) {	2861	warn "leaving sync_job";
		2862
		2863	1
		2864	} or do {
1370	warn $@;	2865	warn $@;
1371	warn "error while reloading, exiting.";	2866	warn "error while reloading, exiting.";
1372	exit 1;	2867	exit 1;
1373	}	2868	};
1374		2869
1375	warn "reloaded successfully";	2870	warn "reloaded";
1376	};	2871	};
1377		2872
1378	sub perl_reload() {	2873	our $RELOAD_WATCHER; # used only during reload
1379	_perl_reload;
1380	}
1381		2874
1382	register "<global>", __PACKAGE__;	2875	sub reload_perl() {
		2876	# doing reload synchronously and two reloads happen back-to-back,
		2877	# coro crashes during coro_state_free->destroy here.
1383		2878
		2879	$RELOAD_WATCHER ||= Event->timer (
		2880	reentrant => 0,
		2881	after => 0,
		2882	data => WF_AUTOCANCEL,
		2883	cb => sub {
		2884	do_reload_perl;
		2885	undef $RELOAD_WATCHER;
		2886	},
		2887	);
		2888	}
		2889
1384	register_command "perl-reload" => sub {	2890	register_command "reload" => sub {
1385	my ($who, $arg) = @_;	2891	my ($who, $arg) = @_;
1386		2892
1387	if ($who->flag (FLAG_WIZ)) {	2893	if ($who->flag (FLAG_WIZ)) {
1388	$who->message ("reloading...");	2894	$who->message ("reloading server.");
1389	_perl_reload;	2895	async { reload_perl };
1390	}	2896	}
1391	};	2897	};
1392		2898
1393	unshift @INC, $LIBDIR;	2899	unshift @INC, $LIBDIR;
1394		2900
		2901	my $bug_warning = 0;
		2902
		2903	our @WAIT_FOR_TICK;
		2904	our @WAIT_FOR_TICK_BEGIN;
		2905
		2906	sub wait_for_tick {
		2907	return unless $TICK_WATCHER->is_active;
		2908	return if $Coro::current == $Coro::main;
		2909
		2910	my $signal = new Coro::Signal;
		2911	push @WAIT_FOR_TICK, $signal;
		2912	$signal->wait;
		2913	}
		2914
		2915	sub wait_for_tick_begin {
		2916	return unless $TICK_WATCHER->is_active;
		2917	return if $Coro::current == $Coro::main;
		2918
		2919	my $signal = new Coro::Signal;
		2920	push @WAIT_FOR_TICK_BEGIN, $signal;
		2921	$signal->wait;
		2922	}
		2923
		2924	my $min = 1e6;#d#
		2925	my $avg = 10;
1395	$TICK_WATCHER = Event->timer (	2926	$TICK_WATCHER = Event->timer (
1396	reentrant => 0,	2927	reentrant => 0,
		2928	parked => 1,
1397	prio => 0,	2929	prio => 0,
1398	at => $NEXT_TICK || $TICK,	2930	at => $NEXT_TICK || $TICK,
1399	data => WF_AUTOCANCEL,	2931	data => WF_AUTOCANCEL,
1400	cb => sub {	2932	cb => sub {
1401	unless ($FREEZE) {	2933	if ($Coro::current != $Coro::main) {
		2934	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2935	unless ++$bug_warning > 10;
		2936	return;
		2937	}
		2938
		2939	$NOW = $tick_start = Event::time;
		2940
1402	cf::server_tick; # one server iteration	2941	cf::server_tick; # one server iteration
1403	$RUNTIME += $TICK;	2942
		2943	0 && sync_job {#d#
		2944	for(1..10) {
		2945	my $t = Event::time;
		2946	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2947	or die;
		2948
		2949	$map->width (50);
		2950	$map->height (50);
		2951	$map->alloc;
		2952	$map->_load_objects ("/tmp/x.map", 1);
		2953	my $t = Event::time - $t;
		2954
		2955	#next unless $t < 0.0013;#d#
		2956	if ($t < $min) {
		2957	$min = $t;
		2958	}
		2959	$avg = $avg * 0.99 + $t * 0.01;
		2960	}
		2961	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2962	exit 0;
		2963	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1404	}	2964	};
1405		2965
		2966	$RUNTIME += $TICK;
1406	$NEXT_TICK += $TICK;	2967	$NEXT_TICK += $TICK;
1407		2968
		2969	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2970	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2971	Coro::async_pool {
		2972	write_runtime
		2973	or warn "ERROR: unable to write runtime file: $!";
		2974	};
		2975	}
		2976
		2977	# my $AFTER = Event::time;
		2978	# warn $AFTER - $NOW;#d#
		2979
		2980	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2981	$sig->send;
		2982	}
		2983	while (my $sig = shift @WAIT_FOR_TICK) {
		2984	$sig->send;
		2985	}
		2986
		2987	$NOW = Event::time;
		2988
1408	# if we are delayed by four ticks or more, skip them all	2989	# if we are delayed by four ticks or more, skip them all
1409	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2990	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1410		2991
1411	$TICK_WATCHER->at ($NEXT_TICK);	2992	$TICK_WATCHER->at ($NEXT_TICK);
1412	$TICK_WATCHER->start;	2993	$TICK_WATCHER->start;
		2994
		2995	$LOAD = ($NOW - $tick_start) / $TICK;
		2996	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2997
		2998	_post_tick;
		2999
		3000
1413	},	3001	},
1414	);	3002	);
1415		3003
		3004	{
		3005	BDB::max_poll_time $TICK * 0.1;
		3006	$BDB_POLL_WATCHER = Event->io (
		3007	reentrant => 0,
		3008	fd => BDB::poll_fileno,
		3009	poll => 'r',
		3010	prio => 0,
		3011	data => WF_AUTOCANCEL,
		3012	cb => \&BDB::poll_cb,
		3013	);
		3014	BDB::min_parallel 8;
		3015
		3016	BDB::set_sync_prepare {
		3017	my $status;
		3018	my $current = $Coro::current;
		3019	(
		3020	sub {
		3021	$status = $!;
		3022	$current->ready; undef $current;
		3023	},
		3024	sub {
		3025	Coro::schedule while defined $current;
		3026	$! = $status;
		3027	},
		3028	)
		3029	};
		3030
		3031	unless ($DB_ENV) {
		3032	$DB_ENV = BDB::db_env_create;
		3033
		3034	cf::sync_job {
		3035	eval {
		3036	BDB::db_env_open
		3037	$DB_ENV,
		3038	$BDBDIR,
		3039	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3040	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3041	0666;
		3042
		3043	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3044
		3045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3046	$DB_ENV->set_lk_detect;
		3047	};
		3048
		3049	cf::cleanup "db_env_open(db): $@" if $@;
		3050	};
		3051	}
		3052	}
		3053
		3054	{
		3055	IO::AIO::min_parallel 8;
		3056
		3057	undef $Coro::AIO::WATCHER;
1416	IO::AIO::max_poll_time $TICK * 0.2;	3058	IO::AIO::max_poll_time $TICK * 0.1;
1417		3059	$AIO_POLL_WATCHER = Event->io (
1418	Event->io (fd => IO::AIO::poll_fileno,	3060	reentrant => 0,
1419	poll => 'r',
1420	prio => 5,
1421	data => WF_AUTOCANCEL,	3061	data => WF_AUTOCANCEL,
		3062	fd => IO::AIO::poll_fileno,
		3063	poll => 'r',
		3064	prio => 6,
1422	cb => \&IO::AIO::poll_cb);	3065	cb => \&IO::AIO::poll_cb,
		3066	);
		3067	}
1423		3068
1424	# we must not ever block the main coroutine	3069	my $_log_backtrace;
1425	$Coro::idle = sub {	3070
1426	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3071	sub _log_backtrace {
1427	warn "FATAL: Coro::idle was called, major BUG\n";	3072	my ($msg, @addr) = @_;
1428	(Coro::unblock_sub {	3073
1429	Event::one_event;	3074	$msg =~ s/\n//;
1430	})->();	3075
1431	};	3076	# limit the # of concurrent backtraces
		3077	if ($_log_backtrace < 2) {
		3078	++$_log_backtrace;
		3079	async {
		3080	my @bt = fork_call {
		3081	@addr = map { sprintf "%x", $_ } @addr;
		3082	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3083	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3084	or die "addr2line: $!";
		3085
		3086	my @funcs;
		3087	my @res = <$fh>;
		3088	chomp for @res;
		3089	while (@res) {
		3090	my ($func, $line) = splice @res, 0, 2, ();
		3091	push @funcs, "[$func] $line";
		3092	}
		3093
		3094	@funcs
		3095	};
		3096
		3097	LOG llevInfo, "[ABT] $msg\n";
		3098	LOG llevInfo, "[ABT] $_\n" for @bt;
		3099	--$_log_backtrace;
		3100	};
		3101	} else {
		3102	LOG llevInfo, "[ABT] $msg\n";
		3103	LOG llevInfo, "[ABT] [suppressed]\n";
		3104	}
		3105	}
		3106
		3107	# load additional modules
		3108	use cf::pod;
		3109
		3110	END { cf::emergency_save }
1432		3111
1433	1	3112	1
1434		3113

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