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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.109 by root, Sun Dec 31 22:23:12 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;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	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(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	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;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	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 $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available	112	our $EMERGENCY_POSITION;
75	our $LINK_MAP;	113
		114	sub cf::map::normalise;
76		115
77	#############################################################################	116	#############################################################################
78		117
79	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
80		119
…		…
87	=item $cf::RUNTIME	126	=item $cf::RUNTIME
88		127
89	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
90	every server tick.	129	every server tick.
91		130
92	=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
93		134
94	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		139
97	=item $cf::NOW	140	=item $cf::NOW
98		141
99	The time of the last (current) server tick.	142	The time of the last (current) server tick.
100		143
101	=item $cf::TICK	144	=item $cf::TICK
102		145
103	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.
104		157
105	=item %cf::CFG	158	=item %cf::CFG
106		159
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		168
110	=back	169	=back
111		170
112	=cut	171	=cut
113		172
114	BEGIN {	173	BEGIN {
115	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	175	my $msg = join "", @_;
117	utf8::encode $msg;
118		176
119	$msg .= "\n"	177	$msg .= "\n"
120	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
121		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
123	};	184	};
124	}	185	}
125		186
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		194
133	# 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
134	# within the Safe compartment.	196	# within the Safe compartment.
135	for my $pkg (qw(	197	for my $pkg (qw(
136	cf::global cf::attachable	198	cf::global cf::attachable
…		…
145		207
146	$Event::DIED = sub {	208	$Event::DIED = sub {
147	warn "error in event callback: @_";	209	warn "error in event callback: @_";
148	};	210	};
149		211
150	my %ext_pkg;	212	#############################################################################
151	my @exts;
152	my @hook;
153		213
154	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
155		215
156	=over 4	216	=over 4
157		217
158	=cut	218	=item dumpval $ref
159		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
160	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
161		242
162	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
163		244
164	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
165		246
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
174		248
175	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
176		250
177	=cut	251	=item cf::lock_wait $string
178		252
179	sub to_json($) {	253	Wait until the given lock is available. See cf::lock_acquire.
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
181	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} }, $Coro::current;
		279	Coro::schedule;
		280	}
182	}	281	}
		282
		283	sub lock_acquire($) {
		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	$guard
		311	}
		312
		313	=item cf::async { BLOCK }
		314
		315	Currently the same as Coro::async_pool, meaning you cannot use
		316	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		317	thing you are allowed to do is call C<prio> on it.
		318
		319	=cut
		320
		321	BEGIN { *async = \&Coro::async_pool }
183		322
184	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
185		324
186	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
187	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
188	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
189		329
190	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
191	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
192	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
193	fast or be very important.	333	fast or be very important.
…		…
195	=cut	335	=cut
196		336
197	sub sync_job(&) {	337	sub sync_job(&) {
198	my ($job) = @_;	338	my ($job) = @_;
199		339
200	my $busy = 1;
201	my @res;
202
203	# TODO: use suspend/resume instead
204	local $FREEZE = 1;
205
206	my $coro = Coro::async {
207	@res = eval { $job->() };
208	warn $@ if $@;
209	undef $busy;
210	};
211
212	if ($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;
213	$coro->prio (Coro::PRIO_MAX);	357	})->prio (Coro::PRIO_MAX);
		358
214	while ($busy) {	359	while ($busy) {
215	Coro::cede_notself;	360	Coro::cede or Event::one_event;
216	Event::one_event unless Coro::nready;
217	}	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]
218	} else {	371	} else {
219	$coro->join;	372	# we are in another coroutine, how wonderful, everything just works
		373
		374	$job->()
220	}	375	}
221
222	wantarray ? @res : $res[0]
223	}	376	}
224		377
225	=item $coro = cf::coro { BLOCK }	378	=item $coro = cf::async_ext { BLOCK }
226		379
227	Creates and returns a new coro. This coro is automcatially being canceled	380	Like async, but this coro is automatically being canceled when the
228	when the extension calling this is being unloaded.	381	extension calling this is being unloaded.
229		382
230	=cut	383	=cut
231		384
232	sub coro(&) {	385	sub async_ext(&) {
233	my $cb = shift;	386	my $cb = shift;
234		387
235	my $coro; $coro = async {	388	my $coro = &Coro::async ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		389
242	$coro->on_destroy (sub {	390	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	391	delete $EXT_CORO{$coro+0};
244	});	392	});
245	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
246		394
247	$coro	395	$coro
248	}	396	}
249		397
250	sub write_runtime {	398	=item fork_call { }, $args
251	my $runtime = cf::localdir . "/runtime";
252		399
253	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	400	Executes the given code block with the given arguments in a seperate
254	or return;	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.
255		404
256	my $value = $cf::RUNTIME;	405	=cut
257	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;
259		406
260	aio_fsync $fh	407	sub fork_call(&@) {
261	and return;	408	my ($cb, @args) = @_;
262		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) {
263	close $fh	416	close $fh2;
264	or return;
265		417
266	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
267	and return;	419	$res = Coro::Storable::thaw $res;
268		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
269	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		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 });
270	}	567	}
271		568
272	=back	569	=back
273		570
274	=cut	571	=cut
275
276	#############################################################################
277
278	package cf::path;
279
280	sub new {
281	my ($class, $path, $base) = @_;
282
283	my $self = bless { }, $class;
284
285	if ($path =~ s{^\?random/}{}) {
286	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
287	$self->{random} = cf::from_json $data;
288	} else {
289	if ($path =~ s{^~([^/]+)?}{}) {
290	$self->{user_rel} = 1;
291
292	if (defined $1) {
293	$self->{user} = $1;
294	} elsif ($base =~ m{^~([^/]+)/}) {
295	$self->{user} = $1;
296	} else {
297	warn "cannot resolve user-relative path without user <$path,$base>\n";
298	}
299	} elsif ($path =~ /^\//) {
300	# already absolute
301	} else {
302	$base =~ s{[^/]+/?$}{};
303	return $class->new ("$base/$path");
304	}
305
306	for ($path) {
307	redo if s{/\.?/}{/};
308	redo if s{/[^/]+/\.\./}{/};
309	}
310	}
311
312	$self->{path} = $path;
313
314	$self
315	}
316
317	# the name / primary key / in-game path
318	sub as_string {
319	my ($self) = @_;
320
321	$self->{user_rel} ? "~$self->{user}$self->{path}"
322	: $self->{random} ? "?random/$self->{path}"
323	: $self->{path}
324	}
325
326	# the displayed name, this is a one way mapping
327	sub visible_name {
328	my ($self) = @_;
329
330	# if (my $rmp = $self->{random}) {
331	# # todo: be more intelligent about this
332	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
333	# } else {
334	$self->as_string
335	# }
336	}
337
338	# escape the /'s in the path
339	sub _escaped_path {
340	# ∕ is U+2215
341	(my $path = $_[0]{path}) =~ s/\//∕/g;
342	$path
343	}
344
345	# the original (read-only) location
346	sub load_path {
347	my ($self) = @_;
348
349	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
350	}
351
352	# the temporary/swap location
353	sub save_path {
354	my ($self) = @_;
355
356	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
357	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
358	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
359	}
360
361	# the unique path, might be eq to save_path
362	sub uniq_path {
363	my ($self) = @_;
364
365	$self->{user_rel} || $self->{random}
366	? undef
367	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
368	}
369
370	# return random map parameters, or undef
371	sub random_map_params {
372	my ($self) = @_;
373
374	$self->{random}
375	}
376
377	# this is somewhat ugly, but style maps do need special treatment
378	sub is_style_map {
379	$_[0]{path} =~ m{^/styles/}
380	}
381
382	package cf;
383		572
384	#############################################################################	573	#############################################################################
385		574
386	=head2 ATTACHABLE OBJECTS	575	=head2 ATTACHABLE OBJECTS
387		576
…		…
389	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")
390	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
391		580
392	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>
393	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
394	crossfire+).	583	Crossfire TRT).
395		584
396	=over 4	585	=over 4
397		586
398	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
399		588
…		…
513	our @CB_TYPE = (); # registry for type (cf-object class) based events	702	our @CB_TYPE = (); # registry for type (cf-object class) based events
514	our @CB_MAP = ();	703	our @CB_MAP = ();
515		704
516	my %attachment;	705	my %attachment;
517		706
		707	sub cf::attachable::thawer_merge {
		708	# simply override everything except _meta
		709	local $_[0]{_meta};
		710	%{$_[0]} = %{$_[1]};
		711	}
		712
518	sub _attach_cb($$$$) {	713	sub _attach_cb($$$$) {
519	my ($registry, $event, $prio, $cb) = @_;	714	my ($registry, $event, $prio, $cb) = @_;
520		715
521	use sort 'stable';	716	use sort 'stable';
522		717
…		…
556	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
557		752
558	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
559	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
560	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
561	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
562		757
563	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
564	my $pkg = shift @arg;	759	my $pkg = shift @arg;
565		760
566	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
595	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
596	}	791	}
597		792
598	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
599	} else {	794	} else {
600	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
601	}	796	}
602		797
603	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
604	}	799	}
605		800
…		…
607	if (ref $_[0]) {	802	if (ref $_[0]) {
608	_object_attach @_;	803	_object_attach @_;
609	} else {	804	} else {
610	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
611	}	806	}
		807	_recalc_want;
612	};	808	};
613		809
614	# all those should be optimised	810	# all those should be optimised
615	sub cf::attachable::detach {	811	sub cf::attachable::detach {
616	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
619	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
620	reattach ($obj);	816	reattach ($obj);
621	} else {	817	} else {
622	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
623	}	819	}
		820	_recalc_want;
624	};	821	};
625		822
626	sub cf::attachable::attached {	823	sub cf::attachable::attached {
627	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
628		825
…		…
693	# object support	890	# object support
694		891
695	sub reattach {	892	sub reattach {
696	# basically do the same as instantiate, without calling instantiate	893	# basically do the same as instantiate, without calling instantiate
697	my ($obj) = @_;	894	my ($obj) = @_;
		895
		896	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
698		897
699	my $registry = $obj->registry;	898	my $registry = $obj->registry;
700		899
701	@$registry = ();	900	@$registry = ();
702		901
…		…
749	$filename, length $$rdata, scalar @$objs;	948	$filename, length $$rdata, scalar @$objs;
750		949
751	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
752	chmod SAVE_MODE, $fh;	951	chmod SAVE_MODE, $fh;
753	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
754	aio_fsync $fh;	953	aio_fsync $fh if $cf::USE_FSYNC;
755	close $fh;	954	close $fh;
756		955
757	if (@$objs) {	956	if (@$objs) {
758	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) {
759	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
760	my $data = Storable::nfreeze { version => 1, objs => $objs };	959	my $data = Storable::nfreeze { version => 1, objs => $objs };
761	aio_write $fh, 0, (length $data), $data, 0;	960	aio_write $fh, 0, (length $data), $data, 0;
762	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
763	close $fh;	962	close $fh;
764	aio_rename "$filename.pst~", "$filename.pst";	963	aio_rename "$filename.pst~", "$filename.pst";
765	}	964	}
766	} else {	965	} else {
767	aio_unlink "$filename.pst";	966	aio_unlink "$filename.pst";
…		…
795	or return;	994	or return;
796		995
797	unless (aio_stat "$filename.pst") {	996	unless (aio_stat "$filename.pst") {
798	(aio_load "$filename.pst", $av) >= 0	997	(aio_load "$filename.pst", $av) >= 0
799	or return;	998	or return;
800	$av = eval { (Storable::thaw <$av>)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
801	}	1000	}
802		1001
		1002	warn sprintf "loading %s (%d)\n",
		1003	$filename, length $data, scalar @{$av || []};
803	return ($data, $av);	1004	return ($data, $av);
804	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
805		1012
806	#############################################################################	1013	#############################################################################
807	# command handling &c	1014	# command handling &c
808		1015
809	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1030	}
824		1031
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1033
827	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.
828		1035
829	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
830	called.	1037	called.
831		1038
832	=cut	1039	=cut
833		1040
834	sub register_extcmd {	1041	sub register_extcmd {
835	my ($name, $cb) = @_;	1042	my ($name, $cb) = @_;
836		1043
837	my $caller = caller;
838	#warn "registering extcmd '$name' to '$caller'";
839
840	$EXTCMD{$name} = [$cb, $caller];	1044	$EXTCMD{$name} = $cb;
841	}	1045	}
842		1046
843	cf::player->attach (	1047	cf::player->attach (
844	on_command => sub {	1048	on_command => sub {
845	my ($pl, $name, $params) = @_;	1049	my ($pl, $name, $params) = @_;
…		…
858		1062
859	my $msg = eval { from_json $buf };	1063	my $msg = eval { from_json $buf };
860		1064
861	if (ref $msg) {	1065	if (ref $msg) {
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1066	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
863	if (my %reply = $cb->[0]->($pl, $msg)) {	1067	if (my %reply = $cb->($pl, $msg)) {
864	$pl->ext_reply ($msg->{msgid}, %reply);	1068	$pl->ext_reply ($msg->{msgid}, %reply);
865	}	1069	}
866	}	1070	}
867	} else {	1071	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1072	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
870		1074
871	cf::override;	1075	cf::override;
872	},	1076	},
873	);	1077	);
874		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
875	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 {
876	my ($base, $pkg) = @_;	1467	my ($self, $merge) = @_;
877		1468
878	#TODO	1469	# we have to keep some variables in memory intact
879	}	1470	local $self->{path};
		1471	local $self->{load_path};
880		1472
881	sub load_extension {	1473	$self->SUPER::thawer_merge ($merge);
		1474	}
		1475
		1476	sub normalise {
882	my ($path) = @_;	1477	my ($path, $base) = @_;
883		1478
884	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1479	$path = "$path"; # make sure its a string
885	my $base = $1;
886	my $pkg = $1;
887	$pkg =~ s/[^[:word:]]/_/g;
888	$pkg = "ext::$pkg";
889		1480
890	warn "loading '$path' into '$pkg'\n";	1481	$path =~ s/\.map$//;
891		1482
892	open my $fh, "<:utf8", $path	1483	# map plan:
893	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
894		1491
895	my $source =	1492	$path =~ s/$PATH_SEP/\//go;
896	"package $pkg; use strict; use utf8;\n"
897	. "#line 1 \"$path\"\n{\n"
898	. (do { local $/; <$fh> })
899	. "\n};\n1";
900		1493
901	eval $source	1494	# treat it as relative path if it starts with
902	or die $@ ? "$path: $@\n"	1495	# something that looks reasonable
903	: "extension disabled.\n";	1496	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1497	$base or Carp::carp "normalise called with relative path and no base: '$path'";
904		1498
905	push @exts, $pkg;	1499	$base =~ s{[^/]+/?$}{};
906	$ext_pkg{$base} = $pkg;	1500	$path = "$base/$path";
907
908	# no strict 'refs';
909	# @{"$pkg\::ISA"} = ext::;
910
911	register $base, $pkg;
912	}
913
914	sub unload_extension {
915	my ($pkg) = @_;
916
917	warn "removing extension $pkg\n";
918
919	# remove hooks
920	#TODO
921	# for my $idx (0 .. $#PLUGIN_EVENT) {
922	# delete $hook[$idx]{$pkg};
923	# }	1501	}
924		1502
925	# remove commands	1503	for ($path) {
926	for my $name (keys %COMMAND) {	1504	redo if s{//}{/};
927	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1505	redo if s{/\.?/}{/};
		1506	redo if s{/[^/]+/\.\./}{/};
		1507	}
928		1508
929	if (@cb) {	1509	$path
930	$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;
931	} else {	1648	} else {
932	delete $COMMAND{$name};	1649	$self->load_header_orig
933	}	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
934	}	1660	1
		1661	}
935		1662
936	# remove extcmds	1663	sub find;
937	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1664	sub find {
938	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
939	}	1703	{
		1704	my $guard = cf::lock_acquire "map_load:$path";
940		1705
941	if (my $cb = $pkg->can ("unload")) {	1706	return if $self->in_memory != cf::MAP_SWAPPED;
942	eval {	1707
943	$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);
944	1	1726	}
945	} or warn "$pkg unloaded, but with errors: $@";	1727	}
946	}
947		1728
948	Symbol::delete_package $pkg;	1729	Coro::cede;
949	}	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;
950		1735
951	sub load_extensions {	1736	unless ($self->{deny_activate}) {
952	for my $ext (<$LIBDIR/*.ext>) {	1737	$self->decay_objects;
953	next unless -r $ext;	1738	$self->fix_auto_apply;
954	eval {	1739	$self->update_buttons;
955	load_extension $ext;	1740	Coro::cede;
956	1	1741	$self->set_darkness_map;
957	} or warn "$ext not loaded: $@";	1742	Coro::cede;
958	}	1743	$self->activate;
959	}	1744	}
960		1745
961	#############################################################################	1746	$self->in_memory (cf::MAP_IN_MEMORY);
962	# load/save/clean perl data associated with a map	1747	}
963		1748
964	*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 {
965	my ($map) = @_;	1766	my ($map) = @_;
966		1767
967	my $path = $map->tmpname;	1768	my @diag; # diagonal neighbours
968	defined $path or return;
969		1769
970	unlink "$path.pst";	1770	for (0 .. 3) {
971	};	1771	my $neigh = $map->tile_path ($_)
		1772	or next;
		1773	$neigh = find $neigh, $map
		1774	or next;
		1775	$neigh->load;
972		1776
973	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	}
974		1780
975	#############################################################################	1781	for (@diag) {
976	# load/save perl data associated with player->ob objects	1782	my $neigh = find @$_
977		1783	or next;
978	sub all_objects(@) {	1784	$neigh->load;
979	@_, map all_objects ($_->inv), @_	1785	}
980	}	1786	}
981		1787
982	# TODO: compatibility cruft, remove when no longer needed	1788	sub find_sync {
983	cf::player->attach (	1789	my ($path, $origin) = @_;
984	on_load => sub {
985	my ($pl, $path) = @_;
986		1790
987	for my $o (all_objects $pl->ob) {	1791	cf::sync_job { find $path, $origin }
988	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1792	}
989	$o->set_ob_key_value ("_perl_data");
990		1793
991	%$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};
992	}	1821	}
993	}	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);
994	},	1857	}
995	);	1858	}
996		1859
997	#############################################################################	1860	sub swap_out {
		1861	my ($self) = @_;
998		1862
999	=head2 CORE EXTENSIONS	1863	# save first because save cedes
		1864	$self->save;
1000		1865
1001	Functions and methods that extend core crossfire objects.	1866	my $lock = cf::lock_acquire "map_data:" . $self->path;
1002		1867
1003	=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;
1004		2006
1005	=over 4	2007	=over 4
1006		2008
1007	=item cf::player::exists $login	2009	=item $ob->inv_recursive
1008		2010
1009	Returns true when the given account exists.	2011	Returns the inventory of the object _and_ their inventories, recursively.
1010		2012
1011	=cut	2013	=cut
1012		2014
1013	sub cf::player::exists($) {	2015	sub inv_recursive_;
1014	cf::player::find $_[0]	2016	sub inv_recursive_ {
1015	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2017	map { $_, inv_recursive_ $_->inv } @_
1016	}	2018	}
1017		2019
1018	=item $player->ext_reply ($msgid, $msgtype, %msg)	2020	sub inv_recursive {
1019		2021	inv_recursive_ inv $_[0]
1020	Sends an ext reply to the player.
1021
1022	=cut
1023
1024	sub cf::player::ext_reply($$$%) {
1025	my ($self, $id, %msg) = @_;
1026
1027	$msg{msgid} = $id;
1028
1029	$self->send ("ext " . to_json \%msg);
1030	}	2022	}
		2023
		2024	package cf;
1031		2025
1032	=back	2026	=back
1033		2027
1034	=head3 cf::object::player	2028	=head3 cf::object::player
1035		2029
…		…
1051		2045
1052	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2046	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1053		2047
1054	if ($self->{record_replies}) {	2048	if ($self->{record_replies}) {
1055	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2049	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2050
1056	} 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 {
1057	$msg = $npc->name . " says: $msg" if $npc;	2061	$msg = $npc->name . " says: $msg" if $npc;
1058	$self->message ($msg, $flags);	2062	$self->message ($msg, $flags);
		2063	}
1059	}	2064	}
1060	}	2065	}
1061		2066
1062	=item $player_object->may ("access")	2067	=item $player_object->may ("access")
1063		2068
…		…
1073	(ref $cf::CFG{"may_$access"}	2078	(ref $cf::CFG{"may_$access"}
1074	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2079	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1075	: $cf::CFG{"may_$access"})	2080	: $cf::CFG{"may_$access"})
1076	}	2081	}
1077		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
1078	=head3 cf::client	2300	=head3 cf::client
1079		2301
1080	=over 4	2302	=over 4
1081		2303
1082	=item $client->send_drawinfo ($text, $flags)	2304	=item $client->send_drawinfo ($text, $flags)
…		…
1088		2310
1089	sub cf::client::send_drawinfo {	2311	sub cf::client::send_drawinfo {
1090	my ($self, $text, $flags) = @_;	2312	my ($self, $text, $flags) = @_;
1091		2313
1092	utf8::encode $text;	2314	utf8::encode $text;
1093	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2315	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1094	}	2316	}
1095		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	}
1096		2330
1097	=item $success = $client->query ($flags, "text", \&cb)	2331	=item $success = $client->query ($flags, "text", \&cb)
1098		2332
1099	Queues a query to the client, calling the given callback with	2333	Queues a query to the client, calling the given callback with
1100	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>,
…		…
1125	on_reply => sub {	2359	on_reply => sub {
1126	my ($ns, $msg) = @_;	2360	my ($ns, $msg) = @_;
1127		2361
1128	# this weird shuffling is so that direct followup queries	2362	# this weird shuffling is so that direct followup queries
1129	# get handled first	2363	# get handled first
1130	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
1131		2366
1132	(shift @$queue)->[1]->($msg);	2367	(shift @$queue)->[1]->($msg);
		2368	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1133		2369
1134	push @{ $ns->{query_queue} }, @$queue;	2370	push @{ $ns->{query_queue} }, @$queue;
1135		2371
1136	if (@{ $ns->{query_queue} } == @$queue) {	2372	if (@{ $ns->{query_queue} } == @$queue) {
1137	if (@$queue) {	2373	if (@$queue) {
…		…
1141	}	2377	}
1142	}	2378	}
1143	},	2379	},
1144	);	2380	);
1145		2381
1146	=item $client->coro (\&cb)	2382	=item $client->async (\&cb)
1147		2383
1148	Create a new coroutine, running the specified callback. The coroutine will	2384	Create a new coroutine, running the specified callback. The coroutine will
1149	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,
1150	or loss of connection).	2386	or loss of connection).
1151		2387
1152	=cut	2388	=cut
1153		2389
1154	sub cf::client::coro {	2390	sub cf::client::async {
1155	my ($self, $cb) = @_;	2391	my ($self, $cb) = @_;
1156		2392
1157	my $coro; $coro = async {	2393	my $coro = &Coro::async ($cb);
1158	eval {
1159	$cb->();
1160	};
1161	warn $@ if $@;
1162	};
1163		2394
1164	$coro->on_destroy (sub {	2395	$coro->on_destroy (sub {
1165	delete $self->{_coro}{$coro+0};	2396	delete $self->{_coro}{$coro+0};
1166	});	2397	});
1167		2398
…		…
1200		2431
1201	# here we export the classes and methods available to script code	2432	# here we export the classes and methods available to script code
1202		2433
1203	=pod	2434	=pod
1204		2435
1205	The following fucntions and emthods are available within a safe environment:	2436	The following functions and methods are available within a safe environment:
1206		2437
1207	cf::object contr pay_amount pay_player map	2438	cf::object contr pay_amount pay_player map
1208	cf::object::player player	2439	cf::object::player player
1209	cf::player peaceful	2440	cf::player peaceful
1210	cf::map trigger	2441	cf::map trigger
…		…
1291	=back	2522	=back
1292		2523
1293	=cut	2524	=cut
1294		2525
1295	#############################################################################	2526	#############################################################################
		2527	# the server's init and main functions
1296		2528
1297	=head2 EXTENSION DATABASE SUPPORT	2529	sub load_facedata($) {
		2530	my ($path) = @_;
1298		2531
1299	Crossfire maintains a very simple database for extension use. It can	2532	warn "loading facedata from $path\n";
1300	currently store anything that can be serialised using Storable, which
1301	excludes objects.
1302		2533
1303	The parameter C<$family> should best start with the name of the extension	2534	my $facedata;
1304	using it, it should be unique.	2535	0 < aio_load $path, $facedata
		2536	or die "$path: $!";
1305		2537
1306	=over 4	2538	$facedata = Coro::Storable::thaw $facedata;
1307		2539
1308	=item $hashref = cf::db_get $family	2540	$facedata->{version} == 2
		2541	or cf::cleanup "$path: version mismatch, cannot proceed.";
1309		2542
1310	Return a hashref for use by the extension C<$family>, which can be
1311	modified. After modifications, you have to call C<cf::db_dirty> or
1312	C<cf::db_sync>.
1313
1314	=item $value = cf::db_get $family => $key
1315
1316	Returns a single value from the database
1317
1318	=item cf::db_put $family => $hashref
1319
1320	Stores the given family hashref into the database. Updates are delayed, if
1321	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1322
1323	=item cf::db_put $family => $key => $value
1324
1325	Stores the given C<$value> in the family hash. Updates are delayed, if you
1326	want the data to be synced to disk immediately, use C<cf::db_sync>.
1327
1328	=item cf::db_dirty
1329
1330	Marks the database as dirty, to be updated at a later time.
1331
1332	=item cf::db_sync
1333
1334	Immediately write the database to disk I<if it is dirty>.
1335
1336	=cut
1337
1338	our $DB;
1339
1340	{
1341	my $path = cf::localdir . "/database.pst";
1342
1343	sub db_load() {
1344	warn "loading database $path\n";#d# remove later
1345	$DB = stat $path ? Storable::retrieve $path : { };
1346	}	2543	{
		2544	my $faces = $facedata->{faceinfo};
1347		2545
1348	my $pid;	2546	while (my ($face, $info) = each %$faces) {
1349		2547	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1350	sub db_save() {	2548	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1351	warn "saving database $path\n";#d# remove later	2549	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1352	waitpid $pid, 0 if $pid;	2550	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1353	if (0 == ($pid = fork)) {	2551	Coro::cede;
1354	$DB->{_meta}{version} = 1;
1355	Storable::nstore $DB, "$path~";
1356	rename "$path~", $path;
1357	cf::_exit 0 if defined $pid;
1358	}
1359	}
1360
1361	my $dirty;
1362
1363	sub db_sync() {
1364	db_save if $dirty;
1365	undef $dirty;
1366	}
1367
1368	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1369	db_sync;
1370	});
1371
1372	sub db_dirty() {
1373	$dirty = 1;
1374	$idle->start;
1375	}
1376
1377	sub db_get($;$) {
1378	@_ >= 2
1379	? $DB->{$_[0]}{$_[1]}
1380	: ($DB->{$_[0]} ||= { })
1381	}
1382
1383	sub db_put($$;$) {
1384	if (@_ >= 3) {
1385	$DB->{$_[0]}{$_[1]} = $_[2];
1386	} else {
1387	$DB->{$_[0]} = $_[1];
1388	}
1389	db_dirty;
1390	}
1391
1392	cf::global->attach (
1393	prio => 10000,
1394	on_cleanup => sub {
1395	db_sync;
1396	},	2552	}
1397	);
1398	}
1399		2553
1400	#############################################################################	2554	while (my ($face, $info) = each %$faces) {
1401	# 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	}
1402		2616
1403	sub cfg_load {	2617	sub cfg_load {
1404	open my $fh, "<:utf8", cf::confdir . "/config"	2618	open my $fh, "<:utf8", "$CONFDIR/config"
1405	or return;	2619	or return;
1406		2620
1407	local $/;	2621	local $/;
1408	*CFG = YAML::Syck::Load <$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	}
1409	}	2636	}
1410		2637
1411	sub main {	2638	sub main {
1412	# we must not ever block the main coroutine	2639	# we must not ever block the main coroutine
1413	local $Coro::idle = sub {	2640	local $Coro::idle = sub {
1414	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2641	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1415	(Coro::unblock_sub {	2642	(async {
1416	Event::one_event;	2643	Event::one_event;
1417	})->();	2644	})->prio (Coro::PRIO_MAX);
1418	};	2645	};
1419		2646
1420	cfg_load;	2647	cfg_load;
1421	db_load;	2648	db_init;
1422	load_extensions;	2649	load_extensions;
		2650
		2651	$TICK_WATCHER->start;
1423	Event::loop;	2652	Event::loop;
1424	}	2653	}
1425		2654
1426	#############################################################################	2655	#############################################################################
1427	# initialisation	2656	# initialisation and cleanup
1428		2657
1429	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 $make_core;
		2749	}
		2750
		2751	sub do_reload_perl() {
1430	# can/must only be called in main	2752	# can/must only be called in main
1431	if ($Coro::current != $Coro::main) {	2753	if ($Coro::current != $Coro::main) {
1432	warn "can only reload from main coroutine\n";	2754	warn "can only reload from main coroutine";
1433	return;	2755	return;
1434	}	2756	}
1435		2757
1436	warn "reloading...";	2758	warn "reloading...";
1437		2759
1438	local $FREEZE = 1;	2760	warn "entering sync_job";
		2761
		2762	cf::sync_job {
		2763	cf::write_runtime; # external watchdog should not bark
1439	cf::emergency_save;	2764	cf::emergency_save;
		2765	cf::write_runtime; # external watchdog should not bark
1440		2766
1441	eval {	2767	warn "syncing database to disk";
		2768	BDB::db_env_txn_checkpoint $DB_ENV;
		2769
1442	# 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
1443		2771
1444	# cancel all watchers	2772	warn "cancelling all WF_AUTOCANCEL watchers";
1445	for (Event::all_watchers) {	2773	for (Event::all_watchers) {
1446	$_->cancel if $_->data & WF_AUTOCANCEL;	2774	$_->cancel if $_->data & WF_AUTOCANCEL;
1447	}	2775	}
1448		2776
		2777	warn "flushing outstanding aio requests";
		2778	for (;;) {
		2779	BDB::flush;
		2780	IO::AIO::flush;
		2781	Coro::cede;
		2782	last unless IO::AIO::nreqs || BDB::nreqs;
		2783	warn "iterate...";
		2784	}
		2785
		2786	++$RELOAD;
		2787
1449	# cancel all extension coros	2788	warn "cancelling all extension coros";
1450	$_->cancel for values %EXT_CORO;	2789	$_->cancel for values %EXT_CORO;
1451	%EXT_CORO = ();	2790	%EXT_CORO = ();
1452		2791
1453	# unload all extensions	2792	warn "removing commands";
1454	for (@exts) {	2793	%COMMAND = ();
		2794
		2795	warn "removing ext commands";
		2796	%EXTCMD = ();
		2797
		2798	warn "unloading/nuking all extensions";
		2799	for my $pkg (@EXTS) {
1455	warn "unloading <$_>";	2800	warn "... unloading $pkg";
1456	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: $@";
1457	}	2807	}
1458		2808
		2809	warn "... nuking $pkg";
		2810	Symbol::delete_package $pkg;
		2811	}
		2812
1459	# unload all modules loaded from $LIBDIR	2813	warn "unloading all perl modules loaded from $LIBDIR";
1460	while (my ($k, $v) = each %INC) {	2814	while (my ($k, $v) = each %INC) {
1461	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2815	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1462		2816
1463	warn "removing <$k>";	2817	warn "... unloading $k";
1464	delete $INC{$k};	2818	delete $INC{$k};
1465		2819
1466	$k =~ s/\.pm$//;	2820	$k =~ s/\.pm$//;
1467	$k =~ s/\//::/g;	2821	$k =~ s/\//::/g;
1468		2822
…		…
1471	}	2825	}
1472		2826
1473	Symbol::delete_package $k;	2827	Symbol::delete_package $k;
1474	}	2828	}
1475		2829
1476	# sync database to disk
1477	cf::db_sync;
1478	IO::AIO::flush;
1479
1480	# get rid of safe::, as good as possible	2830	warn "getting rid of safe::, as good as possible";
1481	Symbol::delete_package "safe::$_"	2831	Symbol::delete_package "safe::$_"
1482	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);
1483		2833
1484	# remove register_script_function callbacks
1485	# TODO
1486
1487	# unload cf.pm "a bit"	2834	warn "unloading cf.pm \"a bit\"";
1488	delete $INC{"cf.pm"};	2835	delete $INC{"cf.pm"};
		2836	delete $INC{"cf/pod.pm"};
1489		2837
1490	# don't, removes xs symbols, too,	2838	# don't, removes xs symbols, too,
1491	# and global variables created in xs	2839	# and global variables created in xs
1492	#Symbol::delete_package __PACKAGE__;	2840	#Symbol::delete_package __PACKAGE__;
1493		2841
1494	# reload cf.pm	2842	warn "unload completed, starting to reload now";
		2843
1495	warn "reloading cf.pm";	2844	warn "reloading cf.pm";
1496	require cf;	2845	require cf;
1497	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2846	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1498		2847
1499	# load config and database again	2848	warn "loading config and database again";
1500	cf::cfg_load;	2849	cf::cfg_load;
1501	cf::db_load;
1502		2850
1503	# load extensions
1504	warn "load extensions";	2851	warn "loading extensions";
1505	cf::load_extensions;	2852	cf::load_extensions;
1506		2853
1507	# reattach attachments to objects	2854	warn "reattaching attachments to objects/players";
1508	warn "reattach";	2855	_global_reattach; # objects, sockets
1509	_global_reattach;	2856	warn "reattaching attachments to maps";
1510	};	2857	reattach $_ for values %MAP;
		2858	warn "reattaching attachments to players";
		2859	reattach $_ for values %PLAYER;
1511		2860
1512	if ($@) {	2861	warn "leaving sync_job";
		2862
		2863	1
		2864	} or do {
1513	warn $@;	2865	warn $@;
1514	warn "error while reloading, exiting.";	2866	warn "error while reloading, exiting.";
1515	exit 1;	2867	exit 1;
1516	}	2868	};
1517		2869
1518	warn "reloaded successfully";	2870	warn "reloaded";
1519	};	2871	};
1520		2872
1521	#############################################################################	2873	our $RELOAD_WATCHER; # used only during reload
1522		2874
1523	unless ($LINK_MAP) {	2875	sub reload_perl() {
1524	$LINK_MAP = cf::map::new;	2876	# doing reload synchronously and two reloads happen back-to-back,
		2877	# coro crashes during coro_state_free->destroy here.
1525		2878
1526	$LINK_MAP->width (41);	2879	$RELOAD_WATCHER ||= Event->timer (
1527	$LINK_MAP->height (41);	2880	reentrant => 0,
1528	$LINK_MAP->alloc;	2881	after => 0,
1529	$LINK_MAP->path ("{link}");	2882	data => WF_AUTOCANCEL,
1530	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";	2883	cb => sub {
1531	$LINK_MAP->in_memory (MAP_IN_MEMORY);	2884	do_reload_perl;
		2885	undef $RELOAD_WATCHER;
		2886	},
		2887	);
1532	}	2888	}
1533		2889
1534	register "<global>", __PACKAGE__;
1535
1536	register_command "perl-reload" => sub {	2890	register_command "reload" => sub {
1537	my ($who, $arg) = @_;	2891	my ($who, $arg) = @_;
1538		2892
1539	if ($who->flag (FLAG_WIZ)) {	2893	if ($who->flag (FLAG_WIZ)) {
1540	$who->message ("start of reload.");
1541	perl_reload;
1542	$who->message ("end of reload.");	2894	$who->message ("reloading server.");
		2895	async { reload_perl };
1543	}	2896	}
1544	};	2897	};
1545		2898
1546	unshift @INC, $LIBDIR;	2899	unshift @INC, $LIBDIR;
1547		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;
1548	$TICK_WATCHER = Event->timer (	2926	$TICK_WATCHER = Event->timer (
1549	reentrant => 0,	2927	reentrant => 0,
		2928	parked => 1,
1550	prio => 0,	2929	prio => 0,
1551	at => $NEXT_TICK || $TICK,	2930	at => $NEXT_TICK || $TICK,
1552	data => WF_AUTOCANCEL,	2931	data => WF_AUTOCANCEL,
1553	cb => sub {	2932	cb => sub {
1554	unless ($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
1555	cf::server_tick; # one server iteration	2941	cf::server_tick; # one server iteration
1556	$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
1557	}	2964	};
1558		2965
		2966	$RUNTIME += $TICK;
1559	$NEXT_TICK += $TICK;	2967	$NEXT_TICK += $TICK;
1560		2968
		2969	if ($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
1561	# 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
1562	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2990	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1563		2991
1564	$TICK_WATCHER->at ($NEXT_TICK);	2992	$TICK_WATCHER->at ($NEXT_TICK);
1565	$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
1566	},	3001	},
1567	);	3002	);
1568		3003
		3004	{
1569	IO::AIO::max_poll_time $TICK * 0.2;	3005	BDB::max_poll_time $TICK * 0.1;
1570		3006	$BDB_POLL_WATCHER = Event->io (
1571	Event->io (	3007	reentrant => 0,
1572	fd => IO::AIO::poll_fileno,	3008	fd => BDB::poll_fileno,
1573	poll => 'r',	3009	poll => 'r',
1574	prio => 5,	3010	prio => 0,
1575	data => WF_AUTOCANCEL,
1576	cb => \&IO::AIO::poll_cb,
1577	);
1578
1579	Event->timer (
1580	data => WF_AUTOCANCEL,	3011	data => WF_AUTOCANCEL,
1581	after => 0,	3012	cb => \&BDB::poll_cb,
1582	interval => 10,	3013	);
1583	cb => sub {	3014	BDB::min_parallel 8;
1584	(Coro::unblock_sub {	3015
1585	write_runtime	3016	BDB::set_sync_prepare {
1586	or warn "ERROR: unable to write runtime file: $!";	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 $@;
1587	})->();	3050	};
1588	},	3051	}
1589	);	3052	}
		3053
		3054	{
		3055	IO::AIO::min_parallel 8;
		3056
		3057	undef $Coro::AIO::WATCHER;
		3058	IO::AIO::max_poll_time $TICK * 0.1;
		3059	$AIO_POLL_WATCHER = Event->io (
		3060	reentrant => 0,
		3061	data => WF_AUTOCANCEL,
		3062	fd => IO::AIO::poll_fileno,
		3063	poll => 'r',
		3064	prio => 6,
		3065	cb => \&IO::AIO::poll_cb,
		3066	);
		3067	}
		3068
		3069	my $_log_backtrace;
		3070
		3071	sub _log_backtrace {
		3072	my ($msg, @addr) = @_;
		3073
		3074	$msg =~ s/\n//;
		3075
		3076	# limit the # of concurrent backtraces
		3077	if ($_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 }
1590		3111
1591	1	3112	1
1592		3113

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