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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.97 by root, Fri Dec 22 06:03:20 2006 UTC vs.
Revision 1.284 by root, Sun Jun 24 04:15:42 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;	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
19	use IO::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24
		25	use BDB ();
		26	use Data::Dumper;
		27	use Digest::MD5;
		28	use Fcntl;
20	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
21	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
22		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
23	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
24		41
25	# 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?
26	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
27		44
28	$Coro::main->prio (Coro::PRIO_MIN);	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29		46
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		48
32	our %COMMAND = ();	49	our %COMMAND = ();
33	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
35		56
36	_init_vars;	57	our $RELOAD; # number of reloads so far
37
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;
		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;
44		82
45	our %CFG;	83	our %CFG;
46		84
47	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
		86	our $RUNTIME;
		87
		88	our %PLAYER; # all users
		89	our %MAP; # all maps
		90	our $LINK_MAP; # the special {link} map, which is always available
		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 $tick_start; # for load detecting purposes
		98
		99	binmode STDOUT;
		100	binmode STDERR;
		101
		102	# read virtual server time, if available
		103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
		104	open my $fh, "<", "$LOCALDIR/runtime"
		105	or die "unable to read runtime file: $!";
		106	$RUNTIME = <$fh> + 0.;
		107	}
		108
		109	mkdir $_
		110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		111
		112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
48		115
49	#############################################################################	116	#############################################################################
50		117
51	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
52		119
…		…
54		121
55	=item $cf::UPTIME	122	=item $cf::UPTIME
56		123
57	The timestamp of the server start (so not actually an uptime).	124	The timestamp of the server start (so not actually an uptime).
58		125
59	=item $cf::LIBDIR	126	=item $cf::RUNTIME
60		127
61	The perl library directory, where extensions and cf-specific modules can	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
62	be found. It will be added to C<@INC> automatically.	129	every server tick.
		130
		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
		134
		135	Various directories - "/etc", read-only install directory, perl-library
		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.
		139
		140	=item $cf::NOW
		141
		142	The time of the last (current) server tick.
63		143
64	=item $cf::TICK	144	=item $cf::TICK
65		145
66	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.
67		157
68	=item %cf::CFG	158	=item %cf::CFG
69		159
70	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
71	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.
72		168
73	=back	169	=back
74		170
75	=cut	171	=cut
76		172
77	BEGIN {	173	BEGIN {
78	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
79	my $msg = join "", @_;	175	my $msg = join "", @_;
		176
80	$msg .= "\n"	177	$msg .= "\n"
81	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
82		179
83	print STDERR "cfperl: $msg";	180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
84	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
85	};	184	};
86	}	185	}
87		186
88	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
89	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
90	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
91	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
92	@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';
93	@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)
94		194
95	# 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
96	# within the Safe compartment.	196	# within the Safe compartment.
97	for my $pkg (qw(	197	for my $pkg (qw(
98	cf::global	198	cf::global cf::attachable
99	cf::object cf::object::player	199	cf::object cf::object::player
100	cf::client cf::player	200	cf::client cf::player
101	cf::arch cf::living	201	cf::arch cf::living
102	cf::map cf::party cf::region	202	cf::map cf::party cf::region
103	)) {	203	)) {
…		…
107		207
108	$Event::DIED = sub {	208	$Event::DIED = sub {
109	warn "error in event callback: @_";	209	warn "error in event callback: @_";
110	};	210	};
111		211
112	my %ext_pkg;	212	#############################################################################
113	my @exts;
114	my @hook;
115		213
116	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
117		215
118	=over 4	216	=over 4
119		217
120	=cut	218	=item dumpval $ref
121		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
122	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
123		242
124	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
125		244
126	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
127		246
128	=cut
129
130	sub from_json($) {
131	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
132	JSON::Syck::Load $_[0]
133	}
134
135	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
136		248
137	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
138		250
139	=cut	251	=item cf::lock_wait $string
140		252
141	sub to_json($) {	253	Wait until the given lock is available. See cf::lock_acquire.
142	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
143	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} }, $Coro::current;
		279	Coro::schedule;
		280	}
		281	}
		282
		283	sub lock_acquire($) {
		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	$guard
		311	}
		312
		313	=item cf::async { BLOCK }
		314
		315	Currently the same as Coro::async_pool, meaning you cannot use
		316	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		317	thing you are allowed to do is call C<prio> on it.
		318
		319	=cut
		320
		321	BEGIN { *async = \&Coro::async_pool }
		322
		323	=item cf::sync_job { BLOCK }
		324
		325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
		326	is always able to handle events or runnable, as Crossfire TRT is only
		327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
		329
		330	If it must be done, put the blocking parts into C<sync_job>. This will run
		331	the given BLOCK in another coroutine while waiting for the result. The
		332	server will be frozen during this time, so the block should either finish
		333	fast or be very important.
		334
		335	=cut
		336
		337	sub sync_job(&) {
		338	my ($job) = @_;
		339
		340	if ($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 $busy;
		357	})->prio (Coro::PRIO_MAX);
		358
		359	while ($busy) {
		360	Coro::cede or Event::one_event;
		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]
		371	} else {
		372	# we are in another coroutine, how wonderful, everything just works
		373
		374	$job->()
		375	}
		376	}
		377
		378	=item $coro = cf::async_ext { BLOCK }
		379
		380	Like async, but this coro is automatically being canceled when the
		381	extension calling this is being unloaded.
		382
		383	=cut
		384
		385	sub async_ext(&) {
		386	my $cb = shift;
		387
		388	my $coro = &Coro::async ($cb);
		389
		390	$coro->on_destroy (sub {
		391	delete $EXT_CORO{$coro+0};
		392	});
		393	$EXT_CORO{$coro+0} = $coro;
		394
		395	$coro
		396	}
		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 });
144	}	567	}
145		568
146	=back	569	=back
147		570
148	=cut	571	=cut
…		…
155	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")
156	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
157		580
158	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>
159	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
160	crossfire+).	583	Crossfire TRT).
161		584
162	=over 4	585	=over 4
163		586
164	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
165		588
…		…
269	exception.	692	exception.
270		693
271	=cut	694	=cut
272		695
273	# the following variables are defined in .xs and must not be re-created	696	# the following variables are defined in .xs and must not be re-created
274	our @CB_GLOBAL = (); # registry for all global events	697	our @CB_GLOBAL = (); # registry for all global events
		698	our @CB_ATTACHABLE = (); # registry for all attachables
275	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	699	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
276	our @CB_PLAYER = ();	700	our @CB_PLAYER = ();
277	our @CB_CLIENT = ();	701	our @CB_CLIENT = ();
278	our @CB_TYPE = (); # registry for type (cf-object class) based events	702	our @CB_TYPE = (); # registry for type (cf-object class) based events
279	our @CB_MAP = ();	703	our @CB_MAP = ();
280		704
281	my %attachment;	705	my %attachment;
		706
		707	sub cf::attachable::thawer_merge {
		708	# simply override everything except _meta
		709	local $_[0]{_meta};
		710	%{$_[0]} = %{$_[1]};
		711	}
282		712
283	sub _attach_cb($$$$) {	713	sub _attach_cb($$$$) {
284	my ($registry, $event, $prio, $cb) = @_;	714	my ($registry, $event, $prio, $cb) = @_;
285		715
286	use sort 'stable';	716	use sort 'stable';
…		…
289		719
290	@{$registry->[$event]} = sort	720	@{$registry->[$event]} = sort
291	{ $a->[0] cmp $b->[0] }	721	{ $a->[0] cmp $b->[0] }
292	@{$registry->[$event] || []}, $cb;	722	@{$registry->[$event] || []}, $cb;
293	}	723	}
		724
		725	# hack
		726	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
294		727
295	# attach handles attaching event callbacks	728	# attach handles attaching event callbacks
296	# the only thing the caller has to do is pass the correct	729	# the only thing the caller has to do is pass the correct
297	# registry (== where the callback attaches to).	730	# registry (== where the callback attaches to).
298	sub _attach {	731	sub _attach {
…		…
300		733
301	my $object_type;	734	my $object_type;
302	my $prio = 0;	735	my $prio = 0;
303	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	736	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
304		737
		738	#TODO: get rid of this hack
		739	if ($attachable_klass{$klass}) {
		740	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		741	}
		742
305	while (@arg) {	743	while (@arg) {
306	my $type = shift @arg;	744	my $type = shift @arg;
307		745
308	if ($type eq "prio") {	746	if ($type eq "prio") {
309	$prio = shift @arg;	747	$prio = shift @arg;
…		…
313	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
314		752
315	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
316	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
317	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
318	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
319		757
320	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
321	my $pkg = shift @arg;	759	my $pkg = shift @arg;
322		760
323	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
352	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
353	}	791	}
354		792
355	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
356	} else {	794	} else {
357	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
358	}	796	}
359		797
360	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
361	}	799	}
362		800
…		…
364	if (ref $_[0]) {	802	if (ref $_[0]) {
365	_object_attach @_;	803	_object_attach @_;
366	} else {	804	} else {
367	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
368	}	806	}
		807	_recalc_want;
369	};	808	};
370		809
371	# all those should be optimised	810	# all those should be optimised
372	sub cf::attachable::detach {	811	sub cf::attachable::detach {
373	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
376	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
377	reattach ($obj);	816	reattach ($obj);
378	} else {	817	} else {
379	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
380	}	819	}
		820	_recalc_want;
381	};	821	};
382		822
383	sub cf::attachable::attached {	823	sub cf::attachable::attached {
384	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
385		825
386	exists $obj->{_attachment}{$name}	826	exists $obj->{_attachment}{$name}
387	}	827	}
388		828
389	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	829	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
390	eval "#line " . __LINE__ . " 'cf.pm'	830	eval "#line " . __LINE__ . " 'cf.pm'
391	sub cf::\L$klass\E::_attach_registry {	831	sub cf::\L$klass\E::_attach_registry {
392	(\\\@CB_$klass, KLASS_$klass)	832	(\\\@CB_$klass, KLASS_$klass)
393	}	833	}
394		834
…		…
447	=cut	887	=cut
448		888
449	#############################################################################	889	#############################################################################
450	# object support	890	# object support
451		891
452	sub instantiate {
453	my ($obj, $data) = @_;
454
455	$data = from_json $data;
456
457	for (@$data) {
458	my ($name, $args) = @$_;
459
460	$obj->attach ($name, %{$args || {} });
461	}
462	}
463
464	# basically do the same as instantiate, without calling instantiate
465	sub reattach {	892	sub reattach {
		893	# basically do the same as instantiate, without calling instantiate
466	my ($obj) = @_;	894	my ($obj) = @_;
		895
		896	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		897
467	my $registry = $obj->registry;	898	my $registry = $obj->registry;
468		899
469	@$registry = ();	900	@$registry = ();
470		901
471	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	902	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
480	warn "object uses attachment '$name' that is not available, postponing.\n";	911	warn "object uses attachment '$name' that is not available, postponing.\n";
481	}	912	}
482	}	913	}
483	}	914	}
484		915
485	sub object_freezer_save {	916	cf::attachable->attach (
486	my ($filename, $rdata, $objs) = @_;
487
488	if (length $$rdata) {
489	warn sprintf "saving %s (%d,%d)\n",
490	$filename, length $$rdata, scalar @$objs;
491
492	if (open my $fh, ">:raw", "$filename~") {
493	chmod SAVE_MODE, $fh;
494	syswrite $fh, $$rdata;
495	close $fh;
496
497	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
498	chmod SAVE_MODE, $fh;
499	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
500	close $fh;
501	rename "$filename.pst~", "$filename.pst";
502	} else {
503	unlink "$filename.pst";
504	}
505
506	rename "$filename~", $filename;
507	} else {
508	warn "FATAL: $filename~: $!\n";
509	}
510	} else {
511	unlink $filename;
512	unlink "$filename.pst";
513	}
514	}
515
516	sub object_freezer_as_string {
517	my ($rdata, $objs) = @_;
518
519	use Data::Dumper;
520
521	$$rdata . Dumper $objs
522	}
523
524	sub object_thawer_load {
525	my ($filename) = @_;
526
527	local $/;
528
529	my $av;
530
531	#TODO: use sysread etc.
532	if (open my $data, "<:raw:perlio", $filename) {
533	$data = <$data>;
534	if (open my $pst, "<:raw:perlio", "$filename.pst") {
535	$av = eval { (Storable::thaw <$pst>)->{objs} };
536	}
537	return ($data, $av);
538	}
539
540	()
541	}
542
543	cf::object->attach (
544	prio => -1000000,	917	prio => -1000000,
		918	on_instantiate => sub {
		919	my ($obj, $data) = @_;
		920
		921	$data = from_json $data;
		922
		923	for (@$data) {
		924	my ($name, $args) = @$_;
		925
		926	$obj->attach ($name, %{$args || {} });
		927	}
		928	},
		929	on_reattach => \&reattach,
545	on_clone => sub {	930	on_clone => sub {
546	my ($src, $dst) = @_;	931	my ($src, $dst) = @_;
547		932
548	@{$dst->registry} = @{$src->registry};	933	@{$dst->registry} = @{$src->registry};
549		934
…		…
552	%{$dst->{_attachment}} = %{$src->{_attachment}}	937	%{$dst->{_attachment}} = %{$src->{_attachment}}
553	if exists $src->{_attachment};	938	if exists $src->{_attachment};
554	},	939	},
555	);	940	);
556		941
		942	sub object_freezer_save {
		943	my ($filename, $rdata, $objs) = @_;
		944
		945	sync_job {
		946	if (length $$rdata) {
		947	warn sprintf "saving %s (%d,%d)\n",
		948	$filename, length $$rdata, scalar @$objs;
		949
		950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		951	chmod SAVE_MODE, $fh;
		952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		953	aio_fsync $fh if $cf::USE_FSYNC;
		954	close $fh;
		955
		956	if (@$objs) {
		957	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		958	chmod SAVE_MODE, $fh;
		959	my $data = Storable::nfreeze { version => 1, objs => $objs };
		960	aio_write $fh, 0, (length $data), $data, 0;
		961	aio_fsync $fh if $cf::USE_FSYNC;
		962	close $fh;
		963	aio_rename "$filename.pst~", "$filename.pst";
		964	}
		965	} else {
		966	aio_unlink "$filename.pst";
		967	}
		968
		969	aio_rename "$filename~", $filename;
		970	} else {
		971	warn "FATAL: $filename~: $!\n";
		972	}
		973	} else {
		974	aio_unlink $filename;
		975	aio_unlink "$filename.pst";
		976	}
		977	}
		978	}
		979
		980	sub object_freezer_as_string {
		981	my ($rdata, $objs) = @_;
		982
		983	use Data::Dumper;
		984
		985	$$rdata . Dumper $objs
		986	}
		987
		988	sub object_thawer_load {
		989	my ($filename) = @_;
		990
		991	my ($data, $av);
		992
		993	(aio_load $filename, $data) >= 0
		994	or return;
		995
		996	unless (aio_stat "$filename.pst") {
		997	(aio_load "$filename.pst", $av) >= 0
		998	or return;
		999	$av = eval { (Storable::thaw $av)->{objs} };
		1000	}
		1001
		1002	warn sprintf "loading %s (%d)\n",
		1003	$filename, length $data, scalar @{$av || []};
		1004	return ($data, $av);
		1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
		1012
557	#############################################################################	1013	#############################################################################
558	# command handling &c	1014	# command handling &c
559		1015
560	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
561		1017
…		…
573	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
574	}	1030	}
575		1031
576	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
577		1033
578	Register a callbackf ro execution when the client sends an extcmd packet.	1034	Register a callback fro execution when the client sends an extcmd packet.
579		1035
580	If the callback returns something, it is sent back as if reply was being	1036	If the callback returns something, it is sent back as if reply was being
581	called.	1037	called.
582		1038
583	=cut	1039	=cut
584		1040
585	sub register_extcmd {	1041	sub register_extcmd {
586	my ($name, $cb) = @_;	1042	my ($name, $cb) = @_;
587		1043
588	my $caller = caller;
589	#warn "registering extcmd '$name' to '$caller'";
590
591	$EXTCMD{$name} = [$cb, $caller];	1044	$EXTCMD{$name} = $cb;
592	}	1045	}
593		1046
594	cf::player->attach (	1047	cf::player->attach (
595	on_command => sub {	1048	on_command => sub {
596	my ($pl, $name, $params) = @_;	1049	my ($pl, $name, $params) = @_;
…		…
609		1062
610	my $msg = eval { from_json $buf };	1063	my $msg = eval { from_json $buf };
611		1064
612	if (ref $msg) {	1065	if (ref $msg) {
613	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1066	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
614	if (my %reply = $cb->[0]->($pl, $msg)) {	1067	if (my %reply = $cb->($pl, $msg)) {
615	$pl->ext_reply ($msg->{msgid}, %reply);	1068	$pl->ext_reply ($msg->{msgid}, %reply);
616	}	1069	}
617	}	1070	}
618	} else {	1071	} else {
619	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1072	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
621		1074
622	cf::override;	1075	cf::override;
623	},	1076	},
624	);	1077	);
625		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 $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1353
		1354	Expand crossfire pod fragments into protocol xml.
		1355
		1356	=cut
		1357
		1358	sub expand_cfpod {
		1359	((my $self), (local $_)) = @_;
		1360
		1361	# escape & and <
		1362	s/&/&amp;/g;
		1363	s/(?<![BIUGH])</&lt;/g;
		1364
		1365	# this is buggy, it needs to properly take care of nested <'s
		1366
		1367	1 while
		1368	# replace B<>, I<>, U<> etc.
		1369	s/B<([^\>]*)>/<b>$1<\/b>/
		1370	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1371	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1372	# replace G<male|female> tags
		1373	|| s{G<([^>|]*)\|([^>]*)>}{
		1374	$self->gender ? $2 : $1
		1375	}ge
		1376	# replace H<hint text>
		1377	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1378
		1379	# create single paragraphs (very hackish)
		1380	s/(?<=\S)\n(?=\w)/ /g;
		1381
		1382	$_
		1383	}
		1384
		1385	=item $player->ext_reply ($msgid, %msg)
		1386
		1387	Sends an ext reply to the player.
		1388
		1389	=cut
		1390
		1391	sub ext_reply($$%) {
		1392	my ($self, $id, %msg) = @_;
		1393
		1394	$msg{msgid} = $id;
		1395
		1396	$self->send ("ext " . cf::to_json \%msg);
		1397	}
		1398
		1399	=item $player->ext_event ($type, %msg)
		1400
		1401	Sends an ext event to the client.
		1402
		1403	=cut
		1404
		1405	sub ext_event($$%) {
		1406	my ($self, $type, %msg) = @_;
		1407
		1408	$self->ns->ext_event ($type, %msg);
		1409	}
		1410
		1411	=head3 cf::region
		1412
		1413	=over 4
		1414
		1415	=cut
		1416
		1417	package cf::region;
		1418
		1419	=item cf::region::find_by_path $path
		1420
		1421	Tries to decuce the likely region for a map knowing only its path.
		1422
		1423	=cut
		1424
		1425	sub find_by_path($) {
		1426	my ($path) = @_;
		1427
		1428	my ($match, $specificity);
		1429
		1430	for my $region (list) {
		1431	if ($region->match && $path =~ $region->match) {
		1432	($match, $specificity) = ($region, $region->specificity)
		1433	if $region->specificity > $specificity;
		1434	}
		1435	}
		1436
		1437	$match
		1438	}
		1439
		1440	=back
		1441
		1442	=head3 cf::map
		1443
		1444	=over 4
		1445
		1446	=cut
		1447
		1448	package cf::map;
		1449
		1450	use Fcntl;
		1451	use Coro::AIO;
		1452
		1453	use overload
		1454	'""' => \&as_string,
		1455	fallback => 1;
		1456
		1457	our $MAX_RESET = 3600;
		1458	our $DEFAULT_RESET = 3000;
		1459
		1460	sub generate_random_map {
		1461	my ($self, $rmp) = @_;
		1462	# mit "rum" bekleckern, nicht
		1463	$self->_create_random_map (
		1464	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1465	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1466	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1467	$rmp->{exit_on_final_map},
		1468	$rmp->{xsize}, $rmp->{ysize},
		1469	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1470	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1471	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1472	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1473	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1474	(cf::region::find $rmp->{region}), $rmp->{custom}
		1475	)
		1476	}
		1477
		1478	=item cf::map->register ($regex, $prio)
		1479
		1480	Register a handler for the map path matching the given regex at the
		1481	givne priority (higher is better, built-in handlers have priority 0, the
		1482	default).
		1483
		1484	=cut
		1485
626	sub register {	1486	sub register {
		1487	my (undef, $regex, $prio) = @_;
		1488	my $pkg = caller;
		1489
		1490	no strict;
		1491	push @{"$pkg\::ISA"}, __PACKAGE__;
		1492
		1493	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1494	}
		1495
		1496	# also paths starting with '/'
		1497	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1498
		1499	sub thawer_merge {
627	my ($base, $pkg) = @_;	1500	my ($self, $merge) = @_;
628		1501
629	#TODO	1502	# we have to keep some variables in memory intact
630	}	1503	local $self->{path};
		1504	local $self->{load_path};
631		1505
632	sub load_extension {	1506	$self->SUPER::thawer_merge ($merge);
		1507	}
		1508
		1509	sub normalise {
633	my ($path) = @_;	1510	my ($path, $base) = @_;
634		1511
635	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1512	$path = "$path"; # make sure its a string
636	my $base = $1;
637	my $pkg = $1;
638	$pkg =~ s/[^[:word:]]/_/g;
639	$pkg = "ext::$pkg";
640		1513
641	warn "loading '$path' into '$pkg'\n";	1514	$path =~ s/\.map$//;
642		1515
643	open my $fh, "<:utf8", $path	1516	# map plan:
644	or die "$path: $!";	1517	#
		1518	# /! non-realised random map exit (special hack!)
		1519	# {... are special paths that are not being touched
		1520	# ?xxx/... are special absolute paths
		1521	# ?random/... random maps
		1522	# /... normal maps
		1523	# ~user/... per-player map of a specific user
645		1524
646	my $source =	1525	$path =~ s/$PATH_SEP/\//go;
647	"package $pkg; use strict; use utf8;\n"
648	. "#line 1 \"$path\"\n{\n"
649	. (do { local $/; <$fh> })
650	. "\n};\n1";
651		1526
652	eval $source	1527	# treat it as relative path if it starts with
653	or die $@ ? "$path: $@\n"	1528	# something that looks reasonable
654	: "extension disabled.\n";	1529	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1530	$base or Carp::carp "normalise called with relative path and no base: '$path'";
655		1531
656	push @exts, $pkg;	1532	$base =~ s{[^/]+/?$}{};
657	$ext_pkg{$base} = $pkg;	1533	$path = "$base/$path";
658
659	# no strict 'refs';
660	# @{"$pkg\::ISA"} = ext::;
661
662	register $base, $pkg;
663	}
664
665	sub unload_extension {
666	my ($pkg) = @_;
667
668	warn "removing extension $pkg\n";
669
670	# remove hooks
671	#TODO
672	# for my $idx (0 .. $#PLUGIN_EVENT) {
673	# delete $hook[$idx]{$pkg};
674	# }	1534	}
675		1535
676	# remove commands	1536	for ($path) {
677	for my $name (keys %COMMAND) {	1537	redo if s{//}{/};
678	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1538	redo if s{/\.?/}{/};
		1539	redo if s{/[^/]+/\.\./}{/};
		1540	}
679		1541
680	if (@cb) {	1542	$path
681	$COMMAND{$name} = \@cb;	1543	}
		1544
		1545	sub new_from_path {
		1546	my (undef, $path, $base) = @_;
		1547
		1548	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1549
		1550	$path = normalise $path, $base;
		1551
		1552	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1553	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1554	my $self = bless cf::map::new, $pkg;
		1555	$self->{path} = $path; $self->path ($path);
		1556	$self->init; # pass $1 etc.
		1557	return $self;
		1558	}
		1559	}
		1560
		1561	Carp::carp "unable to resolve path '$path' (base '$base').";
		1562	()
		1563	}
		1564
		1565	sub init {
		1566	my ($self) = @_;
		1567
		1568	$self
		1569	}
		1570
		1571	sub as_string {
		1572	my ($self) = @_;
		1573
		1574	"$self->{path}"
		1575	}
		1576
		1577	# the displayed name, this is a one way mapping
		1578	sub visible_name {
		1579	&as_string
		1580	}
		1581
		1582	# the original (read-only) location
		1583	sub load_path {
		1584	my ($self) = @_;
		1585
		1586	"$MAPDIR/$self->{path}.map"
		1587	}
		1588
		1589	# the temporary/swap location
		1590	sub save_path {
		1591	my ($self) = @_;
		1592
		1593	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1594	"$TMPDIR/$path.map"
		1595	}
		1596
		1597	# the unique path, undef == no special unique path
		1598	sub uniq_path {
		1599	my ($self) = @_;
		1600
		1601	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1602	"$UNIQUEDIR/$path"
		1603	}
		1604
		1605	# and all this just because we cannot iterate over
		1606	# all maps in C++...
		1607	sub change_all_map_light {
		1608	my ($change) = @_;
		1609
		1610	$_->change_map_light ($change)
		1611	for grep $_->outdoor, values %cf::MAP;
		1612	}
		1613
		1614	sub decay_objects {
		1615	my ($self) = @_;
		1616
		1617	return if $self->{deny_reset};
		1618
		1619	$self->do_decay_objects;
		1620	}
		1621
		1622	sub unlink_save {
		1623	my ($self) = @_;
		1624
		1625	utf8::encode (my $save = $self->save_path);
		1626	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1627	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1628	}
		1629
		1630	sub load_header_from($) {
		1631	my ($self, $path) = @_;
		1632
		1633	utf8::encode $path;
		1634	#aio_open $path, O_RDONLY, 0
		1635	# or return;
		1636
		1637	$self->_load_header ($path)
		1638	or return;
		1639
		1640	$self->{load_path} = $path;
		1641
		1642	1
		1643	}
		1644
		1645	sub load_header_orig {
		1646	my ($self) = @_;
		1647
		1648	$self->load_header_from ($self->load_path)
		1649	}
		1650
		1651	sub load_header_temp {
		1652	my ($self) = @_;
		1653
		1654	$self->load_header_from ($self->save_path)
		1655	}
		1656
		1657	sub prepare_temp {
		1658	my ($self) = @_;
		1659
		1660	$self->last_access ((delete $self->{last_access})
		1661	|| $cf::RUNTIME); #d#
		1662	# safety
		1663	$self->{instantiate_time} = $cf::RUNTIME
		1664	if $self->{instantiate_time} > $cf::RUNTIME;
		1665	}
		1666
		1667	sub prepare_orig {
		1668	my ($self) = @_;
		1669
		1670	$self->{load_original} = 1;
		1671	$self->{instantiate_time} = $cf::RUNTIME;
		1672	$self->last_access ($cf::RUNTIME);
		1673	$self->instantiate;
		1674	}
		1675
		1676	sub load_header {
		1677	my ($self) = @_;
		1678
		1679	if ($self->load_header_temp) {
		1680	$self->prepare_temp;
682	} else {	1681	} else {
683	delete $COMMAND{$name};	1682	$self->load_header_orig
684	}	1683	or return;
		1684	$self->prepare_orig;
		1685	}
		1686
		1687	$self->{deny_reset} = 1
		1688	if $self->no_reset;
		1689
		1690	$self->default_region (cf::region::find_by_path $self->{path})
		1691	unless $self->default_region;
		1692
685	}	1693	1
		1694	}
686		1695
687	# remove extcmds	1696	sub find;
688	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1697	sub find {
689	delete $EXTCMD{$name};	1698	my ($path, $origin) = @_;
		1699
		1700	$path = normalise $path, $origin && $origin->path;
		1701
		1702	cf::lock_wait "map_find:$path";
		1703
		1704	$cf::MAP{$path} || do {
		1705	my $guard = cf::lock_acquire "map_find:$path";
		1706	my $map = new_from_path cf::map $path
		1707	or return;
		1708
		1709	$map->{last_save} = $cf::RUNTIME;
		1710
		1711	$map->load_header
		1712	or return;
		1713
		1714	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1715	# doing this can freeze the server in a sync job, obviously
		1716	#$cf::WAIT_FOR_TICK->wait;
		1717	$map->reset;
		1718	undef $guard;
		1719	return find $path;
		1720	}
		1721
		1722	$cf::MAP{$path} = $map
		1723	}
		1724	}
		1725
		1726	sub pre_load { }
		1727	sub post_load { }
		1728
		1729	sub load {
		1730	my ($self) = @_;
		1731
		1732	local $self->{deny_reset} = 1; # loading can take a long time
		1733
		1734	my $path = $self->{path};
		1735
690	}	1736	{
		1737	my $guard = cf::lock_acquire "map_load:$path";
691		1738
692	if (my $cb = $pkg->can ("unload")) {	1739	return if $self->in_memory != cf::MAP_SWAPPED;
693	eval {	1740
694	$cb->($pkg);	1741	$self->in_memory (cf::MAP_LOADING);
		1742
		1743	$self->alloc;
		1744
		1745	$self->pre_load;
		1746	Coro::cede;
		1747
		1748	$self->_load_objects ($self->{load_path}, 1)
		1749	or return;
		1750
		1751	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1752	if delete $self->{load_original};
		1753
		1754	if (my $uniq = $self->uniq_path) {
		1755	utf8::encode $uniq;
		1756	if (aio_open $uniq, O_RDONLY, 0) {
		1757	$self->clear_unique_items;
		1758	$self->_load_objects ($uniq, 0);
695	1	1759	}
696	} or warn "$pkg unloaded, but with errors: $@";	1760	}
697	}
698		1761
699	Symbol::delete_package $pkg;	1762	Coro::cede;
700	}	1763	# now do the right thing for maps
		1764	$self->link_multipart_objects;
		1765	$self->difficulty ($self->estimate_difficulty)
		1766	unless $self->difficulty;
		1767	Coro::cede;
701		1768
702	sub load_extensions {	1769	unless ($self->{deny_activate}) {
703	for my $ext (<$LIBDIR/*.ext>) {	1770	$self->decay_objects;
704	next unless -r $ext;	1771	$self->fix_auto_apply;
705	eval {	1772	$self->update_buttons;
706	load_extension $ext;	1773	Coro::cede;
707	1	1774	$self->set_darkness_map;
708	} or warn "$ext not loaded: $@";	1775	Coro::cede;
709	}	1776	$self->activate;
710	}	1777	}
711		1778
712	#############################################################################	1779	$self->in_memory (cf::MAP_IN_MEMORY);
713	# load/save/clean perl data associated with a map	1780	}
714		1781
715	*cf::mapsupport::on_clean = sub {	1782	$self->post_load;
		1783	}
		1784
		1785	sub customise_for {
		1786	my ($self, $ob) = @_;
		1787
		1788	return find "~" . $ob->name . "/" . $self->{path}
		1789	if $self->per_player;
		1790
		1791	# return find "?party/" . $ob->name . "/" . $self->{path}
		1792	# if $self->per_party;
		1793
		1794	$self
		1795	}
		1796
		1797	# find and load all maps in the 3x3 area around a map
		1798	sub load_diag {
716	my ($map) = @_;	1799	my ($map) = @_;
717		1800
718	my $path = $map->tmpname;	1801	my @diag; # diagonal neighbours
719	defined $path or return;
720		1802
721	unlink "$path.pst";	1803	for (0 .. 3) {
722	};	1804	my $neigh = $map->tile_path ($_)
		1805	or next;
		1806	$neigh = find $neigh, $map
		1807	or next;
		1808	$neigh->load;
723		1809
724	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1810	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1811	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1812	}
725		1813
726	#############################################################################	1814	for (@diag) {
727	# load/save perl data associated with player->ob objects	1815	my $neigh = find @$_
728		1816	or next;
729	sub all_objects(@) {	1817	$neigh->load;
730	@_, map all_objects ($_->inv), @_	1818	}
731	}	1819	}
732		1820
733	# TODO: compatibility cruft, remove when no longer needed	1821	sub find_sync {
734	cf::player->attach (	1822	my ($path, $origin) = @_;
735	on_load => sub {
736	my ($pl, $path) = @_;
737		1823
738	for my $o (all_objects $pl->ob) {	1824	cf::sync_job { find $path, $origin }
739	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1825	}
740	$o->set_ob_key_value ("_perl_data");
741		1826
742	%$o = %{ Storable::thaw pack "H*", $value };	1827	sub do_load_sync {
		1828	my ($map) = @_;
		1829
		1830	cf::sync_job { $map->load };
		1831	}
		1832
		1833	our %MAP_PREFETCH;
		1834	our $MAP_PREFETCHER = undef;
		1835
		1836	sub find_async {
		1837	my ($path, $origin) = @_;
		1838
		1839	$path = normalise $path, $origin && $origin->{path};
		1840
		1841	if (my $map = $cf::MAP{$path}) {
		1842	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1843	}
		1844
		1845	undef $MAP_PREFETCH{$path};
		1846	$MAP_PREFETCHER ||= cf::async {
		1847	while (%MAP_PREFETCH) {
		1848	for my $path (keys %MAP_PREFETCH) {
		1849	my $map = find $path
		1850	or next;
		1851	$map->load;
		1852
		1853	delete $MAP_PREFETCH{$path};
743	}	1854	}
744	}	1855	}
		1856	undef $MAP_PREFETCHER;
		1857	};
		1858	$MAP_PREFETCHER->prio (6);
		1859
		1860	()
		1861	}
		1862
		1863	sub save {
		1864	my ($self) = @_;
		1865
		1866	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1867
		1868	$self->{last_save} = $cf::RUNTIME;
		1869
		1870	return unless $self->dirty;
		1871
		1872	my $save = $self->save_path; utf8::encode $save;
		1873	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1874
		1875	$self->{load_path} = $save;
		1876
		1877	return if $self->{deny_save};
		1878
		1879	local $self->{last_access} = $self->last_access;#d#
		1880
		1881	cf::async {
		1882	$_->contr->save for $self->players;
		1883	};
		1884
		1885	if ($uniq) {
		1886	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1887	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1888	} else {
		1889	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
745	},	1890	}
746	);	1891	}
747		1892
748	#############################################################################	1893	sub swap_out {
		1894	my ($self) = @_;
749		1895
750	=head2 CORE EXTENSIONS	1896	# save first because save cedes
		1897	$self->save;
751		1898
752	Functions and methods that extend core crossfire objects.	1899	my $lock = cf::lock_acquire "map_data:" . $self->path;
753		1900
754	=head3 cf::player	1901	return if $self->players;
		1902	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1903	return if $self->{deny_save};
		1904
		1905	$self->clear;
		1906	$self->in_memory (cf::MAP_SWAPPED);
		1907	}
		1908
		1909	sub reset_at {
		1910	my ($self) = @_;
		1911
		1912	# TODO: safety, remove and allow resettable per-player maps
		1913	return 1e99 if $self->{deny_reset};
		1914
		1915	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1916	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1917
		1918	$time + $to
		1919	}
		1920
		1921	sub should_reset {
		1922	my ($self) = @_;
		1923
		1924	$self->reset_at <= $cf::RUNTIME
		1925	}
		1926
		1927	sub reset {
		1928	my ($self) = @_;
		1929
		1930	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1931
		1932	return if $self->players;
		1933
		1934	warn "resetting map ", $self->path;
		1935
		1936	$self->in_memory (cf::MAP_SWAPPED);
		1937
		1938	# need to save uniques path
		1939	unless ($self->{deny_save}) {
		1940	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1941
		1942	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1943	if $uniq;
		1944	}
		1945
		1946	delete $cf::MAP{$self->path};
		1947
		1948	$self->clear;
		1949
		1950	$_->clear_links_to ($self) for values %cf::MAP;
		1951
		1952	$self->unlink_save;
		1953	$self->destroy;
		1954	}
		1955
		1956	my $nuke_counter = "aaaa";
		1957
		1958	sub nuke {
		1959	my ($self) = @_;
		1960
		1961	delete $cf::MAP{$self->path};
		1962
		1963	$self->unlink_save;
		1964
		1965	bless $self, "cf::map";
		1966	delete $self->{deny_reset};
		1967	$self->{deny_save} = 1;
		1968	$self->reset_timeout (1);
		1969	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1970
		1971	$cf::MAP{$self->path} = $self;
		1972
		1973	$self->reset; # polite request, might not happen
		1974	}
		1975
		1976	=item $maps = cf::map::tmp_maps
		1977
		1978	Returns an arrayref with all map paths of currently instantiated and saved
		1979	maps. May block.
		1980
		1981	=cut
		1982
		1983	sub tmp_maps() {
		1984	[
		1985	map {
		1986	utf8::decode $_;
		1987	/\.map$/
		1988	? normalise $_
		1989	: ()
		1990	} @{ aio_readdir $TMPDIR or [] }
		1991	]
		1992	}
		1993
		1994	=item $maps = cf::map::random_maps
		1995
		1996	Returns an arrayref with all map paths of currently instantiated and saved
		1997	random maps. May block.
		1998
		1999	=cut
		2000
		2001	sub random_maps() {
		2002	[
		2003	map {
		2004	utf8::decode $_;
		2005	/\.map$/
		2006	? normalise "?random/$_"
		2007	: ()
		2008	} @{ aio_readdir $RANDOMDIR or [] }
		2009	]
		2010	}
		2011
		2012	=item cf::map::unique_maps
		2013
		2014	Returns an arrayref of paths of all shared maps that have
		2015	instantiated unique items. May block.
		2016
		2017	=cut
		2018
		2019	sub unique_maps() {
		2020	[
		2021	map {
		2022	utf8::decode $_;
		2023	/\.map$/
		2024	? normalise $_
		2025	: ()
		2026	} @{ aio_readdir $UNIQUEDIR or [] }
		2027	]
		2028	}
		2029
		2030	package cf;
		2031
		2032	=back
		2033
		2034	=head3 cf::object
		2035
		2036	=cut
		2037
		2038	package cf::object;
755		2039
756	=over 4	2040	=over 4
757		2041
758	=item cf::player::exists $login	2042	=item $ob->inv_recursive
759		2043
760	Returns true when the given account exists.	2044	Returns the inventory of the object _and_ their inventories, recursively.
761		2045
762	=cut	2046	=cut
763		2047
764	sub cf::player::exists($) {	2048	sub inv_recursive_;
765	cf::player::find $_[0]	2049	sub inv_recursive_ {
766	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2050	map { $_, inv_recursive_ $_->inv } @_
767	}	2051	}
768		2052
769	=item $player->ext_reply ($msgid, $msgtype, %msg)	2053	sub inv_recursive {
770		2054	inv_recursive_ inv $_[0]
771	Sends an ext reply to the player.
772
773	=cut
774
775	sub cf::player::ext_reply($$$%) {
776	my ($self, $id, %msg) = @_;
777
778	$msg{msgid} = $id;
779
780	$self->send ("ext " . to_json \%msg);
781	}	2055	}
		2056
		2057	package cf;
782		2058
783	=back	2059	=back
784		2060
785	=head3 cf::object::player	2061	=head3 cf::object::player
786		2062
…		…
802		2078
803	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2079	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
804		2080
805	if ($self->{record_replies}) {	2081	if ($self->{record_replies}) {
806	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2082	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2083
807	} else {	2084	} else {
		2085	my $pl = $self->contr;
		2086
		2087	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2088	my $diag = $pl->{npc_dialog};
		2089	$diag->{pl}->ext_reply (
		2090	$diag->{id},
		2091	msgtype => "reply",
		2092	msg => $diag->{pl}->expand_cfpod ($msg),
		2093	add_topics => []
		2094	);
		2095
		2096	} else {
808	$msg = $npc->name . " says: $msg" if $npc;	2097	$msg = $npc->name . " says: $msg" if $npc;
809	$self->message ($msg, $flags);	2098	$self->message ($msg, $flags);
		2099	}
810	}	2100	}
811	}	2101	}
812		2102
813	=item $player_object->may ("access")	2103	=item $player_object->may ("access")
814		2104
…		…
824	(ref $cf::CFG{"may_$access"}	2114	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2115	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	2116	: $cf::CFG{"may_$access"})
827	}	2117	}
828		2118
		2119	=item $player_object->enter_link
		2120
		2121	Freezes the player and moves him/her to a special map (C<{link}>).
		2122
		2123	The player should be reasonably safe there for short amounts of time. You
		2124	I<MUST> call C<leave_link> as soon as possible, though.
		2125
		2126	Will never block.
		2127
		2128	=item $player_object->leave_link ($map, $x, $y)
		2129
		2130	Moves the player out of the special C<{link}> map onto the specified
		2131	map. If the map is not valid (or omitted), the player will be moved back
		2132	to the location he/she was before the call to C<enter_link>, or, if that
		2133	fails, to the emergency map position.
		2134
		2135	Might block.
		2136
		2137	=cut
		2138
		2139	sub link_map {
		2140	unless ($LINK_MAP) {
		2141	$LINK_MAP = cf::map::find "{link}"
		2142	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2143	$LINK_MAP->load;
		2144	}
		2145
		2146	$LINK_MAP
		2147	}
		2148
		2149	sub cf::object::player::enter_link {
		2150	my ($self) = @_;
		2151
		2152	$self->deactivate_recursive;
		2153
		2154	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2155
		2156	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2157	if $self->map && $self->map->{path} ne "{link}";
		2158
		2159	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2160	}
		2161
		2162	sub cf::object::player::leave_link {
		2163	my ($self, $map, $x, $y) = @_;
		2164
		2165	return unless $self->contr->active;
		2166
		2167	my $link_pos = delete $self->{_link_pos};
		2168
		2169	unless ($map) {
		2170	# restore original map position
		2171	($map, $x, $y) = @{ $link_pos || [] };
		2172	$map = cf::map::find $map;
		2173
		2174	unless ($map) {
		2175	($map, $x, $y) = @$EMERGENCY_POSITION;
		2176	$map = cf::map::find $map
		2177	or die "FATAL: cannot load emergency map\n";
		2178	}
		2179	}
		2180
		2181	($x, $y) = (-1, -1)
		2182	unless (defined $x) && (defined $y);
		2183
		2184	# use -1 or undef as default coordinates, not 0, 0
		2185	($x, $y) = ($map->enter_x, $map->enter_y)
		2186	if $x <=0 && $y <= 0;
		2187
		2188	$map->load;
		2189	$map->load_diag;
		2190
		2191	return unless $self->contr->active;
		2192	$self->activate_recursive;
		2193
		2194	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2195	$self->enter_map ($map, $x, $y);
		2196	}
		2197
		2198	=item $player_object->goto ($path, $x, $y[, $check->($map)])
		2199
		2200	Moves the player to the given map-path and coordinates by first freezing
		2201	her, loading and preparing them map, calling the provided $check callback
		2202	that has to return the map if sucecssful, and then unfreezes the player on
		2203	the new (success) or old (failed) map position.
		2204
		2205	=cut
		2206
		2207	our $GOTOGEN;
		2208
		2209	sub cf::object::player::goto {
		2210	my ($self, $path, $x, $y, $check) = @_;
		2211
		2212	# do generation counting so two concurrent goto's will be executed in-order
		2213	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2214
		2215	$self->enter_link;
		2216
		2217	(async {
		2218	my $map = eval {
		2219	my $map = cf::map::find $path;
		2220
		2221	if ($map) {
		2222	$map = $map->customise_for ($self);
		2223	$map = $check->($map) if $check && $map;
		2224	} else {
		2225	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2226	}
		2227
		2228	$map
		2229	};
		2230
		2231	if ($@) {
		2232	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2233	LOG llevError | logBacktrace, Carp::longmess $@;
		2234	}
		2235
		2236	if ($gen == $self->{_goto_generation}) {
		2237	delete $self->{_goto_generation};
		2238	$self->leave_link ($map, $x, $y);
		2239	}
		2240	})->prio (1);
		2241	}
		2242
		2243	=item $player_object->enter_exit ($exit_object)
		2244
		2245	=cut
		2246
		2247	sub parse_random_map_params {
		2248	my ($spec) = @_;
		2249
		2250	my $rmp = { # defaults
		2251	xsize => (cf::rndm 15, 40),
		2252	ysize => (cf::rndm 15, 40),
		2253	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2254	#layout => string,
		2255	};
		2256
		2257	for (split /\n/, $spec) {
		2258	my ($k, $v) = split /\s+/, $_, 2;
		2259
		2260	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2261	}
		2262
		2263	$rmp
		2264	}
		2265
		2266	sub prepare_random_map {
		2267	my ($exit) = @_;
		2268
		2269	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2270
		2271	# all this does is basically replace the /! path by
		2272	# a new random map path (?random/...) with a seed
		2273	# that depends on the exit object
		2274
		2275	my $rmp = parse_random_map_params $exit->msg;
		2276
		2277	if ($exit->map) {
		2278	$rmp->{region} = $exit->region->name;
		2279	$rmp->{origin_map} = $exit->map->path;
		2280	$rmp->{origin_x} = $exit->x;
		2281	$rmp->{origin_y} = $exit->y;
		2282	}
		2283
		2284	$rmp->{random_seed} ||= $exit->random_seed;
		2285
		2286	my $data = cf::to_json $rmp;
		2287	my $md5 = Digest::MD5::md5_hex $data;
		2288	my $meta = "$RANDOMDIR/$md5.meta";
		2289
		2290	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2291	aio_write $fh, 0, (length $data), $data, 0;
		2292	undef $fh;
		2293	aio_rename "$meta~", $meta;
		2294
		2295	$exit->slaying ("?random/$md5");
		2296	$exit->msg (undef);
		2297	}
		2298	}
		2299
		2300	sub cf::object::player::enter_exit {
		2301	my ($self, $exit) = @_;
		2302
		2303	return unless $self->type == cf::PLAYER;
		2304
		2305	if ($exit->slaying eq "/!") {
		2306	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2307	# the problem is that $exit might not survive long enough
		2308	# so it needs to be done right now, right here
		2309	cf::sync_job { prepare_random_map $exit };
		2310	}
		2311
		2312	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2313	my $hp = $exit->stats->hp;
		2314	my $sp = $exit->stats->sp;
		2315
		2316	$self->enter_link;
		2317
		2318	(async {
		2319	$self->deactivate_recursive; # just to be sure
		2320	unless (eval {
		2321	$self->goto ($slaying, $hp, $sp);
		2322
		2323	1;
		2324	}) {
		2325	$self->message ("Something went wrong deep within the crossfire server. "
		2326	. "I'll try to bring you back to the map you were before. "
		2327	. "Please report this to the dungeon master!",
		2328	cf::NDI_UNIQUE | cf::NDI_RED);
		2329
		2330	warn "ERROR in enter_exit: $@";
		2331	$self->leave_link;
		2332	}
		2333	})->prio (1);
		2334	}
		2335
829	=head3 cf::client	2336	=head3 cf::client
830		2337
831	=over 4	2338	=over 4
832		2339
833	=item $client->send_drawinfo ($text, $flags)	2340	=item $client->send_drawinfo ($text, $flags)
…		…
839		2346
840	sub cf::client::send_drawinfo {	2347	sub cf::client::send_drawinfo {
841	my ($self, $text, $flags) = @_;	2348	my ($self, $text, $flags) = @_;
842		2349
843	utf8::encode $text;	2350	utf8::encode $text;
844	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2351	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
845	}	2352	}
846		2353
		2354	=item $client->send_msg ($color, $type, $msg, [extra...])
		2355
		2356	Send a drawinfo or msg packet to the client, formatting the msg for the
		2357	client if neccessary. C<$type> should be a string identifying the type of
		2358	the message, with C<log> being the default. If C<$color> is negative, suppress
		2359	the message unless the client supports the msg packet.
		2360
		2361	=cut
		2362
		2363	sub cf::client::send_msg {
		2364	my ($self, $color, $type, $msg, @extra) = @_;
		2365
		2366	$msg = $self->pl->expand_cfpod ($msg);
		2367
		2368	if ($self->can_msg) {
		2369	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2370	} else {
		2371	# replace some tags by gcfclient-compatible ones
		2372	for ($msg) {
		2373	1 while
		2374	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2375	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2376	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2377	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2378	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${1}[\/color]/;
		2379	}
		2380
		2381	if ($color >= 0) {
		2382	if (0 && $msg =~ /\[/) {
		2383	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2384	} else {
		2385	s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2386	$self->send_packet ("drawinfo $color $msg")
		2387	}
		2388	}
		2389	}
		2390	}
		2391
		2392	=item $client->ext_event ($type, %msg)
		2393
		2394	Sends an exti event to the client.
		2395
		2396	=cut
		2397
		2398	sub cf::client::ext_event($$%) {
		2399	my ($self, $type, %msg) = @_;
		2400
		2401	$msg{msgtype} = "event_$type";
		2402	$self->send_packet ("ext " . cf::to_json \%msg);
		2403	}
847		2404
848	=item $success = $client->query ($flags, "text", \&cb)	2405	=item $success = $client->query ($flags, "text", \&cb)
849		2406
850	Queues a query to the client, calling the given callback with	2407	Queues a query to the client, calling the given callback with
851	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2408	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
876	on_reply => sub {	2433	on_reply => sub {
877	my ($ns, $msg) = @_;	2434	my ($ns, $msg) = @_;
878		2435
879	# this weird shuffling is so that direct followup queries	2436	# this weird shuffling is so that direct followup queries
880	# get handled first	2437	# get handled first
881	my $queue = delete $ns->{query_queue};	2438	my $queue = delete $ns->{query_queue}
		2439	or return; # be conservative, not sure how that can happen, but we saw a crash here
882		2440
883	(shift @$queue)->[1]->($msg);	2441	(shift @$queue)->[1]->($msg);
		2442	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
884		2443
885	push @{ $ns->{query_queue} }, @$queue;	2444	push @{ $ns->{query_queue} }, @$queue;
886		2445
887	if (@{ $ns->{query_queue} } == @$queue) {	2446	if (@{ $ns->{query_queue} } == @$queue) {
888	if (@$queue) {	2447	if (@$queue) {
889	$ns->send_packet ($ns->{query_queue}[0][0]);	2448	$ns->send_packet ($ns->{query_queue}[0][0]);
890	} else {	2449	} else {
891	$ns->state (ST_PLAYING);	2450	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
892	}	2451	}
893	}	2452	}
894	},	2453	},
895	);	2454	);
896		2455
897	=item $client->coro (\&cb)	2456	=item $client->async (\&cb)
898		2457
899	Create a new coroutine, running the specified callback. The coroutine will	2458	Create a new coroutine, running the specified callback. The coroutine will
900	be automatically cancelled when the client gets destroyed (e.g. on logout,	2459	be automatically cancelled when the client gets destroyed (e.g. on logout,
901	or loss of connection).	2460	or loss of connection).
902		2461
903	=cut	2462	=cut
904		2463
905	sub cf::client::coro {	2464	sub cf::client::async {
906	my ($self, $cb) = @_;	2465	my ($self, $cb) = @_;
907		2466
908	my $coro; $coro = async {	2467	my $coro = &Coro::async ($cb);
909	eval {	2468
910	$cb->();	2469	$coro->on_destroy (sub {
911	};
912	warn $@ if $@;
913	delete $self->{_coro}{$coro+0};	2470	delete $self->{_coro}{$coro+0};
914	};	2471	});
915		2472
916	$self->{_coro}{$coro+0} = $coro;	2473	$self->{_coro}{$coro+0} = $coro;
		2474
		2475	$coro
917	}	2476	}
918		2477
919	cf::client->attach (	2478	cf::client->attach (
920	on_destroy => sub {	2479	on_destroy => sub {
921	my ($ns) = @_;	2480	my ($ns) = @_;
…		…
946		2505
947	# here we export the classes and methods available to script code	2506	# here we export the classes and methods available to script code
948		2507
949	=pod	2508	=pod
950		2509
951	The following fucntions and emthods are available within a safe environment:	2510	The following functions and methods are available within a safe environment:
952		2511
953	cf::object contr pay_amount pay_player map	2512	cf::object contr pay_amount pay_player map
954	cf::object::player player	2513	cf::object::player player
955	cf::player peaceful	2514	cf::player peaceful
956	cf::map trigger	2515	cf::map trigger
…		…
1037	=back	2596	=back
1038		2597
1039	=cut	2598	=cut
1040		2599
1041	#############################################################################	2600	#############################################################################
		2601	# the server's init and main functions
1042		2602
1043	=head2 EXTENSION DATABASE SUPPORT	2603	sub load_facedata($) {
		2604	my ($path) = @_;
1044		2605
1045	Crossfire maintains a very simple database for extension use. It can	2606	warn "loading facedata from $path\n";
1046	currently store anything that can be serialised using Storable, which
1047	excludes objects.
1048		2607
1049	The parameter C<$family> should best start with the name of the extension	2608	my $facedata;
1050	using it, it should be unique.	2609	0 < aio_load $path, $facedata
		2610	or die "$path: $!";
1051		2611
1052	=over 4	2612	$facedata = Coro::Storable::thaw $facedata;
1053		2613
1054	=item $hashref = cf::db_get $family	2614	$facedata->{version} == 2
		2615	or cf::cleanup "$path: version mismatch, cannot proceed.";
1055		2616
1056	Return a hashref for use by the extension C<$family>, which can be
1057	modified. After modifications, you have to call C<cf::db_dirty> or
1058	C<cf::db_sync>.
1059
1060	=item $value = cf::db_get $family => $key
1061
1062	Returns a single value from the database
1063
1064	=item cf::db_put $family => $hashref
1065
1066	Stores the given family hashref into the database. Updates are delayed, if
1067	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1068
1069	=item cf::db_put $family => $key => $value
1070
1071	Stores the given C<$value> in the family hash. Updates are delayed, if you
1072	want the data to be synced to disk immediately, use C<cf::db_sync>.
1073
1074	=item cf::db_dirty
1075
1076	Marks the database as dirty, to be updated at a later time.
1077
1078	=item cf::db_sync
1079
1080	Immediately write the database to disk I<if it is dirty>.
1081
1082	=cut
1083
1084	our $DB;
1085
1086	{
1087	my $path = cf::localdir . "/database.pst";
1088
1089	sub db_load() {
1090	warn "loading database $path\n";#d# remove later
1091	$DB = stat $path ? Storable::retrieve $path : { };
1092	}	2617	{
		2618	my $faces = $facedata->{faceinfo};
1093		2619
1094	my $pid;	2620	while (my ($face, $info) = each %$faces) {
1095		2621	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1096	sub db_save() {	2622	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1097	warn "saving database $path\n";#d# remove later	2623	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1098	waitpid $pid, 0 if $pid;	2624	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1099	if (0 == ($pid = fork)) {	2625	Coro::cede;
1100	$DB->{_meta}{version} = 1;
1101	Storable::nstore $DB, "$path~";
1102	rename "$path~", $path;
1103	cf::_exit 0 if defined $pid;
1104	}
1105	}
1106
1107	my $dirty;
1108
1109	sub db_sync() {
1110	db_save if $dirty;
1111	undef $dirty;
1112	}
1113
1114	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1115	db_sync;
1116	});
1117
1118	sub db_dirty() {
1119	$dirty = 1;
1120	$idle->start;
1121	}
1122
1123	sub db_get($;$) {
1124	@_ >= 2
1125	? $DB->{$_[0]}{$_[1]}
1126	: ($DB->{$_[0]} ||= { })
1127	}
1128
1129	sub db_put($$;$) {
1130	if (@_ >= 3) {
1131	$DB->{$_[0]}{$_[1]} = $_[2];
1132	} else {
1133	$DB->{$_[0]} = $_[1];
1134	}
1135	db_dirty;
1136	}
1137
1138	cf::global->attach (
1139	prio => 10000,
1140	on_cleanup => sub {
1141	db_sync;
1142	},	2626	}
1143	);
1144	}
1145		2627
1146	#############################################################################	2628	while (my ($face, $info) = each %$faces) {
1147	# the server's main()	2629	next unless $info->{smooth};
		2630	my $idx = cf::face::find $face
		2631	or next;
		2632	if (my $smooth = cf::face::find $info->{smooth}) {
		2633	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2634	} else {
		2635	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2636	}
		2637	Coro::cede;
		2638	}
		2639	}
		2640
		2641	{
		2642	my $anims = $facedata->{animinfo};
		2643
		2644	while (my ($anim, $info) = each %$anims) {
		2645	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2646	Coro::cede;
		2647	}
		2648
		2649	cf::anim::invalidate_all; # d'oh
		2650	}
		2651
		2652	1
		2653	}
		2654
		2655	sub reload_regions {
		2656	load_resource_file "$MAPDIR/regions"
		2657	or die "unable to load regions file\n";
		2658	}
		2659
		2660	sub reload_facedata {
		2661	load_facedata "$DATADIR/facedata"
		2662	or die "unable to load facedata\n";
		2663	}
		2664
		2665	sub reload_archetypes {
		2666	load_resource_file "$DATADIR/archetypes"
		2667	or die "unable to load archetypes\n";
		2668	}
		2669
		2670	sub reload_treasures {
		2671	load_resource_file "$DATADIR/treasures"
		2672	or die "unable to load treasurelists\n";
		2673	}
		2674
		2675	sub reload_resources {
		2676	warn "reloading resource files...\n";
		2677
		2678	reload_regions;
		2679	reload_facedata;
		2680	#reload_archetypes;#d#
		2681	reload_archetypes;
		2682	reload_treasures;
		2683
		2684	warn "finished reloading resource files\n";
		2685	}
		2686
		2687	sub init {
		2688	reload_resources;
		2689	}
1148		2690
1149	sub cfg_load {	2691	sub cfg_load {
1150	open my $fh, "<:utf8", cf::confdir . "/config"	2692	open my $fh, "<:utf8", "$CONFDIR/config"
1151	or return;	2693	or return;
1152		2694
1153	local $/;	2695	local $/;
1154	*CFG = YAML::Syck::Load <$fh>;	2696	*CFG = YAML::Syck::Load <$fh>;
		2697
		2698	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2699
		2700	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2701	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2702
		2703	if (exists $CFG{mlockall}) {
		2704	eval {
		2705	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2706	and die "WARNING: m(un)lockall failed: $!\n";
		2707	};
		2708	warn $@ if $@;
		2709	}
1155	}	2710	}
1156		2711
1157	sub main {	2712	sub main {
		2713	# we must not ever block the main coroutine
		2714	local $Coro::idle = sub {
		2715	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2716	(async {
		2717	Event::one_event;
		2718	})->prio (Coro::PRIO_MAX);
		2719	};
		2720
1158	cfg_load;	2721	cfg_load;
1159	db_load;	2722	db_init;
1160	load_extensions;	2723	load_extensions;
		2724
		2725	$TICK_WATCHER->start;
1161	Event::loop;	2726	Event::loop;
1162	}	2727	}
1163		2728
1164	#############################################################################	2729	#############################################################################
1165	# initialisation	2730	# initialisation and cleanup
1166		2731
1167	sub _perl_reload(&) {	2732	# install some emergency cleanup handlers
		2733	BEGIN {
		2734	for my $signal (qw(INT HUP TERM)) {
		2735	Event->signal (
		2736	reentrant => 0,
		2737	data => WF_AUTOCANCEL,
		2738	signal => $signal,
		2739	prio => 0,
		2740	cb => sub {
		2741	cf::cleanup "SIG$signal";
		2742	},
		2743	);
		2744	}
		2745	}
		2746
		2747	sub write_runtime {
		2748	my $runtime = "$LOCALDIR/runtime";
		2749
		2750	# first touch the runtime file to show we are still running:
		2751	# the fsync below can take a very very long time.
		2752
		2753	IO::AIO::aio_utime $runtime, undef, undef;
		2754
		2755	my $guard = cf::lock_acquire "write_runtime";
		2756
		2757	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2758	or return;
		2759
		2760	my $value = $cf::RUNTIME + 90 + 10;
		2761	# 10 is the runtime save interval, for a monotonic clock
		2762	# 60 allows for the watchdog to kill the server.
		2763
		2764	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2765	and return;
		2766
		2767	# always fsync - this file is important
		2768	aio_fsync $fh
		2769	and return;
		2770
		2771	# touch it again to show we are up-to-date
		2772	aio_utime $fh, undef, undef;
		2773
		2774	close $fh
		2775	or return;
		2776
		2777	aio_rename "$runtime~", $runtime
		2778	and return;
		2779
		2780	warn "runtime file written.\n";
		2781
		2782	1
		2783	}
		2784
		2785	sub emergency_save() {
		2786	my $freeze_guard = cf::freeze_mainloop;
		2787
		2788	warn "enter emergency perl save\n";
		2789
		2790	cf::sync_job {
		2791	# use a peculiar iteration method to avoid tripping on perl
		2792	# refcount bugs in for. also avoids problems with players
		2793	# and maps saved/destroyed asynchronously.
		2794	warn "begin emergency player save\n";
		2795	for my $login (keys %cf::PLAYER) {
		2796	my $pl = $cf::PLAYER{$login} or next;
		2797	$pl->valid or next;
		2798	$pl->save;
		2799	}
		2800	warn "end emergency player save\n";
		2801
		2802	warn "begin emergency map save\n";
		2803	for my $path (keys %cf::MAP) {
		2804	my $map = $cf::MAP{$path} or next;
		2805	$map->valid or next;
		2806	$map->save;
		2807	}
		2808	warn "end emergency map save\n";
		2809
		2810	warn "begin emergency database checkpoint\n";
		2811	BDB::db_env_txn_checkpoint $DB_ENV;
		2812	warn "end emergency database checkpoint\n";
		2813	};
		2814
		2815	warn "leave emergency perl save\n";
		2816	}
		2817
		2818	sub post_cleanup {
1168	my ($msg) = @_;	2819	my ($make_core) = @_;
1169		2820
1170	$msg->("reloading...");	2821	warn Carp::longmess "post_cleanup backtrace"
		2822	if $make_core;
		2823	}
1171		2824
1172	eval {	2825	sub do_reload_perl() {
1173	# cancel all watchers	2826	# can/must only be called in main
		2827	if ($Coro::current != $Coro::main) {
		2828	warn "can only reload from main coroutine";
		2829	return;
		2830	}
		2831
		2832	warn "reloading...";
		2833
		2834	warn "entering sync_job";
		2835
		2836	cf::sync_job {
		2837	cf::write_runtime; # external watchdog should not bark
		2838	cf::emergency_save;
		2839	cf::write_runtime; # external watchdog should not bark
		2840
		2841	warn "syncing database to disk";
		2842	BDB::db_env_txn_checkpoint $DB_ENV;
		2843
		2844	# if anything goes wrong in here, we should simply crash as we already saved
		2845
		2846	warn "cancelling all WF_AUTOCANCEL watchers";
1174	for (Event::all_watchers) {	2847	for (Event::all_watchers) {
1175	$_->cancel if $_->data & WF_AUTOCANCEL;	2848	$_->cancel if $_->data & WF_AUTOCANCEL;
1176	}	2849	}
1177		2850
1178	# unload all extensions	2851	warn "flushing outstanding aio requests";
1179	for (@exts) {	2852	for (;;) {
1180	$msg->("unloading <$_>");	2853	BDB::flush;
1181	unload_extension $_;	2854	IO::AIO::flush;
		2855	Coro::cede;
		2856	last unless IO::AIO::nreqs || BDB::nreqs;
		2857	warn "iterate...";
		2858	}
		2859
		2860	++$RELOAD;
		2861
		2862	warn "cancelling all extension coros";
		2863	$_->cancel for values %EXT_CORO;
		2864	%EXT_CORO = ();
		2865
		2866	warn "removing commands";
		2867	%COMMAND = ();
		2868
		2869	warn "removing ext commands";
		2870	%EXTCMD = ();
		2871
		2872	warn "unloading/nuking all extensions";
		2873	for my $pkg (@EXTS) {
		2874	warn "... unloading $pkg";
		2875
		2876	if (my $cb = $pkg->can ("unload")) {
		2877	eval {
		2878	$cb->($pkg);
		2879	1
		2880	} or warn "$pkg unloaded, but with errors: $@";
1182	}	2881	}
1183		2882
		2883	warn "... nuking $pkg";
		2884	Symbol::delete_package $pkg;
		2885	}
		2886
1184	# unload all modules loaded from $LIBDIR	2887	warn "unloading all perl modules loaded from $LIBDIR";
1185	while (my ($k, $v) = each %INC) {	2888	while (my ($k, $v) = each %INC) {
1186	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2889	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1187		2890
1188	$msg->("removing <$k>");	2891	warn "... unloading $k";
1189	delete $INC{$k};	2892	delete $INC{$k};
1190		2893
1191	$k =~ s/\.pm$//;	2894	$k =~ s/\.pm$//;
1192	$k =~ s/\//::/g;	2895	$k =~ s/\//::/g;
1193		2896
…		…
1196	}	2899	}
1197		2900
1198	Symbol::delete_package $k;	2901	Symbol::delete_package $k;
1199	}	2902	}
1200		2903
1201	# sync database to disk
1202	cf::db_sync;
1203
1204	# get rid of safe::, as good as possible	2904	warn "getting rid of safe::, as good as possible";
1205	Symbol::delete_package "safe::$_"	2905	Symbol::delete_package "safe::$_"
1206	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2906	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1207		2907
1208	# remove register_script_function callbacks
1209	# TODO
1210
1211	# unload cf.pm "a bit"	2908	warn "unloading cf.pm \"a bit\"";
1212	delete $INC{"cf.pm"};	2909	delete $INC{"cf.pm"};
		2910	delete $INC{"cf/pod.pm"};
1213		2911
1214	# don't, removes xs symbols, too,	2912	# don't, removes xs symbols, too,
1215	# and global variables created in xs	2913	# and global variables created in xs
1216	#Symbol::delete_package __PACKAGE__;	2914	#Symbol::delete_package __PACKAGE__;
1217		2915
1218	# reload cf.pm	2916	warn "unload completed, starting to reload now";
		2917
1219	$msg->("reloading cf.pm");	2918	warn "reloading cf.pm";
1220	require cf;	2919	require cf;
		2920	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1221		2921
1222	# load config and database again	2922	warn "loading config and database again";
1223	cf::cfg_load;	2923	cf::cfg_load;
1224	cf::db_load;
1225		2924
1226	# load extensions	2925	warn "loading extensions";
1227	$msg->("load extensions");
1228	cf::load_extensions;	2926	cf::load_extensions;
1229		2927
1230	# reattach attachments to objects	2928	warn "reattaching attachments to objects/players";
1231	$msg->("reattach");	2929	_global_reattach; # objects, sockets
1232	_global_reattach;	2930	warn "reattaching attachments to maps";
		2931	reattach $_ for values %MAP;
		2932	warn "reattaching attachments to players";
		2933	reattach $_ for values %PLAYER;
		2934
		2935	warn "leaving sync_job";
		2936
		2937	1
		2938	} or do {
		2939	warn $@;
		2940	warn "error while reloading, exiting.";
		2941	exit 1;
1233	};	2942	};
1234	$msg->($@) if $@;
1235		2943
1236	$msg->("reloaded");	2944	warn "reloaded";
1237	};	2945	};
1238		2946
1239	sub perl_reload() {	2947	our $RELOAD_WATCHER; # used only during reload
1240	_perl_reload {	2948
1241	warn $_[0];	2949	sub reload_perl() {
1242	print "$_[0]\n";	2950	# doing reload synchronously and two reloads happen back-to-back,
		2951	# coro crashes during coro_state_free->destroy here.
		2952
		2953	$RELOAD_WATCHER ||= Event->timer (
		2954	reentrant => 0,
		2955	after => 0,
		2956	data => WF_AUTOCANCEL,
		2957	cb => sub {
		2958	do_reload_perl;
		2959	undef $RELOAD_WATCHER;
		2960	},
1243	};	2961	);
1244	}	2962	}
1245		2963
1246	register "<global>", __PACKAGE__;
1247
1248	register_command "perl-reload" => sub {	2964	register_command "reload" => sub {
1249	my ($who, $arg) = @_;	2965	my ($who, $arg) = @_;
1250		2966
1251	if ($who->flag (FLAG_WIZ)) {	2967	if ($who->flag (FLAG_WIZ)) {
1252	_perl_reload {	2968	$who->message ("reloading server.");
1253	warn $_[0];	2969	async { reload_perl };
1254	$who->message ($_[0]);	2970	}
		2971	};
		2972
		2973	unshift @INC, $LIBDIR;
		2974
		2975	my $bug_warning = 0;
		2976
		2977	our @WAIT_FOR_TICK;
		2978	our @WAIT_FOR_TICK_BEGIN;
		2979
		2980	sub wait_for_tick {
		2981	return unless $TICK_WATCHER->is_active;
		2982	return if $Coro::current == $Coro::main;
		2983
		2984	my $signal = new Coro::Signal;
		2985	push @WAIT_FOR_TICK, $signal;
		2986	$signal->wait;
		2987	}
		2988
		2989	sub wait_for_tick_begin {
		2990	return unless $TICK_WATCHER->is_active;
		2991	return if $Coro::current == $Coro::main;
		2992
		2993	my $signal = new Coro::Signal;
		2994	push @WAIT_FOR_TICK_BEGIN, $signal;
		2995	$signal->wait;
		2996	}
		2997
		2998	my $min = 1e6;#d#
		2999	my $avg = 10;
		3000	$TICK_WATCHER = Event->timer (
		3001	reentrant => 0,
		3002	parked => 1,
		3003	prio => 0,
		3004	at => $NEXT_TICK || $TICK,
		3005	data => WF_AUTOCANCEL,
		3006	cb => sub {
		3007	if ($Coro::current != $Coro::main) {
		3008	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3009	unless ++$bug_warning > 10;
		3010	return;
		3011	}
		3012
		3013	$NOW = $tick_start = Event::time;
		3014
		3015	cf::server_tick; # one server iteration
		3016
		3017	0 && sync_job {#d#
		3018	for(1..10) {
		3019	my $t = Event::time;
		3020	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3021	or die;
		3022
		3023	$map->width (50);
		3024	$map->height (50);
		3025	$map->alloc;
		3026	$map->_load_objects ("/tmp/x.map", 1);
		3027	my $t = Event::time - $t;
		3028
		3029	#next unless $t < 0.0013;#d#
		3030	if ($t < $min) {
		3031	$min = $t;
		3032	}
		3033	$avg = $avg * 0.99 + $t * 0.01;
		3034	}
		3035	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3036	exit 0;
		3037	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1255	};	3038	};
1256	}
1257	};
1258		3039
1259	unshift @INC, $LIBDIR;	3040	$RUNTIME += $TICK;
1260
1261	$TICK_WATCHER = Event->timer (
1262	prio => 0,
1263	at => $NEXT_TICK || 1,
1264	data => WF_AUTOCANCEL,
1265	cb => sub {
1266	cf::server_tick; # one server iteration
1267
1268	my $NOW = Event::time;
1269	$NEXT_TICK += $TICK;	3041	$NEXT_TICK += $TICK;
		3042
		3043	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3044	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3045	Coro::async_pool {
		3046	write_runtime
		3047	or warn "ERROR: unable to write runtime file: $!";
		3048	};
		3049	}
		3050
		3051	# my $AFTER = Event::time;
		3052	# warn $AFTER - $NOW;#d#
		3053
		3054	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3055	$sig->send;
		3056	}
		3057	while (my $sig = shift @WAIT_FOR_TICK) {
		3058	$sig->send;
		3059	}
		3060
		3061	$NOW = Event::time;
1270		3062
1271	# if we are delayed by four ticks or more, skip them all	3063	# if we are delayed by four ticks or more, skip them all
1272	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	3064	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1273		3065
1274	$TICK_WATCHER->at ($NEXT_TICK);	3066	$TICK_WATCHER->at ($NEXT_TICK);
1275	$TICK_WATCHER->start;	3067	$TICK_WATCHER->start;
		3068
		3069	$LOAD = ($NOW - $tick_start) / $TICK;
		3070	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3071
		3072	_post_tick;
		3073
		3074
1276	},	3075	},
1277	);	3076	);
1278		3077
		3078	{
		3079	BDB::max_poll_time $TICK * 0.1;
		3080	$BDB_POLL_WATCHER = Event->io (
		3081	reentrant => 0,
		3082	fd => BDB::poll_fileno,
		3083	poll => 'r',
		3084	prio => 0,
		3085	data => WF_AUTOCANCEL,
		3086	cb => \&BDB::poll_cb,
		3087	);
		3088	BDB::min_parallel 8;
		3089
		3090	BDB::set_sync_prepare {
		3091	my $status;
		3092	my $current = $Coro::current;
		3093	(
		3094	sub {
		3095	$status = $!;
		3096	$current->ready; undef $current;
		3097	},
		3098	sub {
		3099	Coro::schedule while defined $current;
		3100	$! = $status;
		3101	},
		3102	)
		3103	};
		3104
		3105	unless ($DB_ENV) {
		3106	$DB_ENV = BDB::db_env_create;
		3107
		3108	cf::sync_job {
		3109	eval {
		3110	BDB::db_env_open
		3111	$DB_ENV,
		3112	$BDBDIR,
		3113	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3114	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3115	0666;
		3116
		3117	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3118
		3119	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3120	$DB_ENV->set_lk_detect;
		3121	};
		3122
		3123	cf::cleanup "db_env_open(db): $@" if $@;
		3124	};
		3125	}
		3126	}
		3127
		3128	{
		3129	IO::AIO::min_parallel 8;
		3130
		3131	undef $Coro::AIO::WATCHER;
1279	IO::AIO::max_poll_time $TICK * 0.2;	3132	IO::AIO::max_poll_time $TICK * 0.1;
1280		3133	$AIO_POLL_WATCHER = Event->io (
1281	Event->io (fd => IO::AIO::poll_fileno,	3134	reentrant => 0,
1282	poll => 'r',
1283	prio => 5,
1284	data => WF_AUTOCANCEL,	3135	data => WF_AUTOCANCEL,
		3136	fd => IO::AIO::poll_fileno,
		3137	poll => 'r',
		3138	prio => 6,
1285	cb => \&IO::AIO::poll_cb);	3139	cb => \&IO::AIO::poll_cb,
		3140	);
		3141	}
		3142
		3143	my $_log_backtrace;
		3144
		3145	sub _log_backtrace {
		3146	my ($msg, @addr) = @_;
		3147
		3148	$msg =~ s/\n//;
		3149
		3150	# limit the # of concurrent backtraces
		3151	if ($_log_backtrace < 2) {
		3152	++$_log_backtrace;
		3153	async {
		3154	my @bt = fork_call {
		3155	@addr = map { sprintf "%x", $_ } @addr;
		3156	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3157	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3158	or die "addr2line: $!";
		3159
		3160	my @funcs;
		3161	my @res = <$fh>;
		3162	chomp for @res;
		3163	while (@res) {
		3164	my ($func, $line) = splice @res, 0, 2, ();
		3165	push @funcs, "[$func] $line";
		3166	}
		3167
		3168	@funcs
		3169	};
		3170
		3171	LOG llevInfo, "[ABT] $msg\n";
		3172	LOG llevInfo, "[ABT] $_\n" for @bt;
		3173	--$_log_backtrace;
		3174	};
		3175	} else {
		3176	LOG llevInfo, "[ABT] $msg\n";
		3177	LOG llevInfo, "[ABT] [suppressed]\n";
		3178	}
		3179	}
		3180
		3181	# load additional modules
		3182	use cf::pod;
		3183
		3184	END { cf::emergency_save }
1286		3185
1287	1	3186	1
1288		3187

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