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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.95 by root, Fri Dec 22 02:04:20 2006 UTC vs.
Revision 1.157 by root, Wed Jan 10 01:16:54 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3 ();
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Data::Dumper;
		21	use Digest::MD5;
		22	use Fcntl;
10	use IO::AIO ();	23	use IO::AIO 2.32 ();
11	use YAML::Syck ();	24	use YAML::Syck ();
12	use Time::HiRes;	25	use Time::HiRes;
13	use Event;	26
14	$Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
15		30
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
18		33
19	use strict;	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
20
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		35
23	our %COMMAND = ();	36	our %COMMAND = ();
24	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
25	our %EXTCMD = ();	38	our %EXTCMD = ();
26		39
27	_init_vars;
28
29	our @EVENT;	40	our @EVENT;
30	our $LIBDIR = datadir . "/ext";	41	our $LIBDIR = datadir . "/ext";
31		42
32	our $TICK = MAX_TIME * 1e-6;	43	our $TICK = MAX_TIME * 1e-6;
33	our $TICK_WATCHER;	44	our $TICK_WATCHER;
34	our $NEXT_TICK;	45	our $NEXT_TICK;
		46	our $NOW;
35		47
36	our %CFG;	48	our %CFG;
37		49
38	our $UPTIME; $UPTIME ||= time;	50	our $UPTIME; $UPTIME ||= time;
		51	our $RUNTIME;
		52
		53	our %PLAYER; # all users
		54	our %MAP; # all maps
		55	our $LINK_MAP; # the special {link} map
		56	our $RANDOM_MAPS = cf::localdir . "/random";
		57	our %EXT_CORO; # coroutines bound to extensions
		58
		59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		61
		62	binmode STDOUT;
		63	binmode STDERR;
		64
		65	# read virtual server time, if available
		66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		67	open my $fh, "<", cf::localdir . "/runtime"
		68	or die "unable to read runtime file: $!";
		69	$RUNTIME = <$fh> + 0.;
		70	}
		71
		72	mkdir cf::localdir;
		73	mkdir cf::localdir . "/" . cf::playerdir;
		74	mkdir cf::localdir . "/" . cf::tmpdir;
		75	mkdir cf::localdir . "/" . cf::uniquedir;
		76	mkdir $RANDOM_MAPS;
		77
		78	# a special map that is always available
		79	our $LINK_MAP;
		80	our $EMERGENCY_POSITION;
39		81
40	#############################################################################	82	#############################################################################
41		83
42	=head2 GLOBAL VARIABLES	84	=head2 GLOBAL VARIABLES
43		85
44	=over 4	86	=over 4
45		87
46	=item $cf::UPTIME	88	=item $cf::UPTIME
47		89
48	The timestamp of the server start (so not actually an uptime).	90	The timestamp of the server start (so not actually an uptime).
		91
		92	=item $cf::RUNTIME
		93
		94	The time this server has run, starts at 0 and is increased by $cf::TICK on
		95	every server tick.
49		96
50	=item $cf::LIBDIR	97	=item $cf::LIBDIR
51		98
52	The perl library directory, where extensions and cf-specific modules can	99	The perl library directory, where extensions and cf-specific modules can
53	be found. It will be added to C<@INC> automatically.	100	be found. It will be added to C<@INC> automatically.
54		101
		102	=item $cf::NOW
		103
		104	The time of the last (current) server tick.
		105
55	=item $cf::TICK	106	=item $cf::TICK
56		107
57	The interval between server ticks, in seconds.	108	The interval between server ticks, in seconds.
58		109
59	=item %cf::CFG	110	=item %cf::CFG
60		111
61	Configuration for the server, loaded from C</etc/crossfire/config>, or	112	Configuration for the server, loaded from C</etc/crossfire/config>, or
62	from wherever your confdir points to.	113	from wherever your confdir points to.
		114
		115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		116
		117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		119	processing has been done. Call C<< ->wait >> on them to maximise the
		120	window of cpu time available, or simply to synchronise to the server tick.
63		121
64	=back	122	=back
65		123
66	=cut	124	=cut
67		125
68	BEGIN {	126	BEGIN {
69	*CORE::GLOBAL::warn = sub {	127	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	128	my $msg = join "", @_;
		129	utf8::encode $msg;
		130
71	$msg .= "\n"	131	$msg .= "\n"
72	unless $msg =~ /\n$/;	132	unless $msg =~ /\n$/;
73		133
74	print STDERR "cfperl: $msg";
75	LOG llevError, "cfperl: $msg";	134	LOG llevError, $msg;
76	};	135	};
77	}	136	}
78		137
79	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
80	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
84	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
85		144
86	# we bless all objects into (empty) derived classes to force a method lookup	145	# we bless all objects into (empty) derived classes to force a method lookup
87	# within the Safe compartment.	146	# within the Safe compartment.
88	for my $pkg (qw(	147	for my $pkg (qw(
89	cf::global	148	cf::global cf::attachable
90	cf::object cf::object::player	149	cf::object cf::object::player
91	cf::client cf::player	150	cf::client cf::player
92	cf::arch cf::living	151	cf::arch cf::living
93	cf::map cf::party cf::region	152	cf::map cf::party cf::region
94	)) {	153	)) {
…		…
106		165
107	=head2 UTILITY FUNCTIONS	166	=head2 UTILITY FUNCTIONS
108		167
109	=over 4	168	=over 4
110		169
		170	=item dumpval $ref
		171
111	=cut	172	=cut
		173
		174	sub dumpval {
		175	eval {
		176	local $SIG{__DIE__};
		177	my $d;
		178	if (1) {
		179	$d = new Data::Dumper([$_[0]], ["*var"]);
		180	$d->Terse(1);
		181	$d->Indent(2);
		182	$d->Quotekeys(0);
		183	$d->Useqq(1);
		184	#$d->Bless(...);
		185	$d->Seen($_[1]) if @_ > 1;
		186	$d = $d->Dump();
		187	}
		188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		189	$d
		190	} || "[unable to dump $_[0]: '$@']";
		191	}
112		192
113	use JSON::Syck (); # TODO# replace by JSON::PC once working	193	use JSON::Syck (); # TODO# replace by JSON::PC once working
114		194
115	=item $ref = cf::from_json $json	195	=item $ref = cf::from_json $json
116		196
…		…
132	sub to_json($) {	212	sub to_json($) {
133	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
134	JSON::Syck::Dump $_[0]	214	JSON::Syck::Dump $_[0]
135	}	215	}
136		216
		217	=item cf::lock_wait $string
		218
		219	Wait until the given lock is available. See cf::lock_acquire.
		220
		221	=item my $lock = cf::lock_acquire $string
		222
		223	Wait until the given lock is available and then acquires it and returns
		224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		225	for example when the coroutine gets canceled), the lock is automatically
		226	returned.
		227
		228	Lock names should begin with a unique identifier (for example, cf::map::find
		229	uses map_find and cf::map::load uses map_load).
		230
		231	=cut
		232
		233	our %LOCK;
		234
		235	sub lock_wait($) {
		236	my ($key) = @_;
		237
		238	# wait for lock, if any
		239	while ($LOCK{$key}) {
		240	push @{ $LOCK{$key} }, $Coro::current;
		241	Coro::schedule;
		242	}
		243	}
		244
		245	sub lock_acquire($) {
		246	my ($key) = @_;
		247
		248	# wait, to be sure we are not locked
		249	lock_wait $key;
		250
		251	$LOCK{$key} = [];
		252
		253	Coro::guard {
		254	# wake up all waiters, to be on the safe side
		255	$_->ready for @{ delete $LOCK{$key} };
		256	}
		257	}
		258
		259	sub freeze_mainloop {
		260	return unless $TICK_WATCHER->is_active;
		261
		262	my $guard = Coro::guard { $TICK_WATCHER->start };
		263	$TICK_WATCHER->stop;
		264	$guard
		265	}
		266
		267	=item cf::async { BLOCK }
		268
		269	Currently the same as Coro::async_pool, meaning you cannot use
		270	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		271	thing you are allowed to do is call C<prio> on it.
		272
		273	=cut
		274
		275	BEGIN { *async = \&Coro::async_pool }
		276
		277	=item cf::sync_job { BLOCK }
		278
		279	The design of crossfire+ requires that the main coro ($Coro::main) is
		280	always able to handle events or runnable, as crossfire+ is only partly
		281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		282
		283	If it must be done, put the blocking parts into C<sync_job>. This will run
		284	the given BLOCK in another coroutine while waiting for the result. The
		285	server will be frozen during this time, so the block should either finish
		286	fast or be very important.
		287
		288	=cut
		289
		290	sub sync_job(&) {
		291	my ($job) = @_;
		292
		293	if ($Coro::current == $Coro::main) {
		294	# this is the main coro, too bad, we have to block
		295	# till the operation succeeds, freezing the server :/
		296
		297	# TODO: use suspend/resume instead
		298	# (but this is cancel-safe)
		299	my $freeze_guard = freeze_mainloop;
		300
		301	my $busy = 1;
		302	my @res;
		303
		304	(async {
		305	@res = eval { $job->() };
		306	warn $@ if $@;
		307	undef $busy;
		308	})->prio (Coro::PRIO_MAX);
		309
		310	while ($busy) {
		311	Coro::cede or Event::one_event;
		312	}
		313
		314	wantarray ? @res : $res[0]
		315	} else {
		316	# we are in another coroutine, how wonderful, everything just works
		317
		318	$job->()
		319	}
		320	}
		321
		322	=item $coro = cf::async_ext { BLOCK }
		323
		324	Like async, but this coro is automcatially being canceled when the
		325	extension calling this is being unloaded.
		326
		327	=cut
		328
		329	sub async_ext(&) {
		330	my $cb = shift;
		331
		332	my $coro = &Coro::async ($cb);
		333
		334	$coro->on_destroy (sub {
		335	delete $EXT_CORO{$coro+0};
		336	});
		337	$EXT_CORO{$coro+0} = $coro;
		338
		339	$coro
		340	}
		341
		342	sub write_runtime {
		343	my $runtime = cf::localdir . "/runtime";
		344
		345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		346	or return;
		347
		348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		350	and return;
		351
		352	aio_fsync $fh
		353	and return;
		354
		355	close $fh
		356	or return;
		357
		358	aio_rename "$runtime~", $runtime
		359	and return;
		360
		361	1
		362	}
		363
137	=back	364	=back
138		365
139	=cut	366	=cut
		367
		368	#############################################################################
		369
		370	package cf::path;
		371
		372	# used to convert map paths into valid unix filenames by repalcing / by ∕
		373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		374
		375	sub new {
		376	my ($class, $path, $base) = @_;
		377
		378	$path = $path->as_string if ref $path;
		379
		380	my $self = bless { }, $class;
		381
		382	# {... are special paths that are not touched
		383	# ?xxx/... are special absolute paths
		384	# ?random/... random maps
		385	# /! non-realised random map exit
		386	# /... normal maps
		387	# ~/... per-player maps without a specific player (DO NOT USE)
		388	# ~user/... per-player map of a specific user
		389
		390	if ($path =~ /^{/) {
		391	# fine as it is
		392	} elsif ($path =~ s{^\?random/}{}) {
		393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		394	$self->{random} = cf::from_json $data;
		395	} else {
		396	if ($path =~ s{^~([^/]+)?}{}) {
		397	$self->{user_rel} = 1;
		398
		399	if (defined $1) {
		400	$self->{user} = $1;
		401	} elsif ($base =~ m{^~([^/]+)/}) {
		402	$self->{user} = $1;
		403	} else {
		404	warn "cannot resolve user-relative path without user <$path,$base>\n";
		405	}
		406	} elsif ($path =~ /^\//) {
		407	# already absolute
		408	} else {
		409	$base =~ s{[^/]+/?$}{};
		410	return $class->new ("$base/$path");
		411	}
		412
		413	for ($path) {
		414	redo if s{/\.?/}{/};
		415	redo if s{/[^/]+/\.\./}{/};
		416	}
		417	}
		418
		419	$self->{path} = $path;
		420
		421	$self
		422	}
		423
		424	# the name / primary key / in-game path
		425	sub as_string {
		426	my ($self) = @_;
		427
		428	$self->{user_rel} ? "~$self->{user}$self->{path}"
		429	: $self->{random} ? "?random/$self->{path}"
		430	: $self->{path}
		431	}
		432
		433	# the displayed name, this is a one way mapping
		434	sub visible_name {
		435	my ($self) = @_;
		436
		437	# if (my $rmp = $self->{random}) {
		438	# # todo: be more intelligent about this
		439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		440	# } else {
		441	$self->as_string
		442	# }
		443	}
		444
		445	# escape the /'s in the path
		446	sub _escaped_path {
		447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		448	$path
		449	}
		450
		451	# the original (read-only) location
		452	sub load_path {
		453	my ($self) = @_;
		454
		455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		456	}
		457
		458	# the temporary/swap location
		459	sub save_path {
		460	my ($self) = @_;
		461
		462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		465	}
		466
		467	# the unique path, might be eq to save_path
		468	sub uniq_path {
		469	my ($self) = @_;
		470
		471	$self->{user_rel} || $self->{random}
		472	? undef
		473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		474	}
		475
		476	# return random map parameters, or undef
		477	sub random_map_params {
		478	my ($self) = @_;
		479
		480	$self->{random}
		481	}
		482
		483	# this is somewhat ugly, but style maps do need special treatment
		484	sub is_style_map {
		485	$_[0]{path} =~ m{^/styles/}
		486	}
		487
		488	package cf;
140		489
141	#############################################################################	490	#############################################################################
142		491
143	=head2 ATTACHABLE OBJECTS	492	=head2 ATTACHABLE OBJECTS
144		493
…		…
249	my ($self, $victim) = @_;	598	my ($self, $victim) = @_;
250	...	599	...
251	}	600	}
252	}	601	}
253		602
		603	=item $attachable->valid
		604
		605	Just because you have a perl object does not mean that the corresponding
		606	C-level object still exists. If you try to access an object that has no
		607	valid C counterpart anymore you get an exception at runtime. This method
		608	can be used to test for existence of the C object part without causing an
		609	exception.
		610
254	=cut	611	=cut
255		612
256	# the following variables are defined in .xs and must not be re-created	613	# the following variables are defined in .xs and must not be re-created
257	our @CB_GLOBAL = (); # registry for all global events	614	our @CB_GLOBAL = (); # registry for all global events
		615	our @CB_ATTACHABLE = (); # registry for all attachables
258	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	616	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
259	our @CB_PLAYER = ();	617	our @CB_PLAYER = ();
260	our @CB_CLIENT = ();	618	our @CB_CLIENT = ();
261	our @CB_TYPE = (); # registry for type (cf-object class) based events	619	our @CB_TYPE = (); # registry for type (cf-object class) based events
262	our @CB_MAP = ();	620	our @CB_MAP = ();
263		621
264	my %attachment;	622	my %attachment;
265		623
266	sub _attach_cb($$$$) {	624	sub _attach_cb($$$$) {
267	my ($registry, $event, $prio, $cb) = @_;	625	my ($registry, $event, $prio, $cb) = @_;
…		…
272		630
273	@{$registry->[$event]} = sort	631	@{$registry->[$event]} = sort
274	{ $a->[0] cmp $b->[0] }	632	{ $a->[0] cmp $b->[0] }
275	@{$registry->[$event] || []}, $cb;	633	@{$registry->[$event] || []}, $cb;
276	}	634	}
		635
		636	# hack
		637	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
277		638
278	# attach handles attaching event callbacks	639	# attach handles attaching event callbacks
279	# the only thing the caller has to do is pass the correct	640	# the only thing the caller has to do is pass the correct
280	# registry (== where the callback attaches to).	641	# registry (== where the callback attaches to).
281	sub _attach {	642	sub _attach {
…		…
283		644
284	my $object_type;	645	my $object_type;
285	my $prio = 0;	646	my $prio = 0;
286	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	647	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
287		648
		649	#TODO: get rid of this hack
		650	if ($attachable_klass{$klass}) {
		651	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		652	}
		653
288	while (@arg) {	654	while (@arg) {
289	my $type = shift @arg;	655	my $type = shift @arg;
290		656
291	if ($type eq "prio") {	657	if ($type eq "prio") {
292	$prio = shift @arg;	658	$prio = shift @arg;
…		…
367	my ($obj, $name) = @_;	733	my ($obj, $name) = @_;
368		734
369	exists $obj->{_attachment}{$name}	735	exists $obj->{_attachment}{$name}
370	}	736	}
371		737
372	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	738	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
373	eval "#line " . __LINE__ . " 'cf.pm'	739	eval "#line " . __LINE__ . " 'cf.pm'
374	sub cf::\L$klass\E::_attach_registry {	740	sub cf::\L$klass\E::_attach_registry {
375	(\\\@CB_$klass, KLASS_$klass)	741	(\\\@CB_$klass, KLASS_$klass)
376	}	742	}
377		743
…		…
413	}	779	}
414		780
415	0	781	0
416	}	782	}
417		783
418	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	784	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
419		785
420	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
421
422	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
423
424	=item $bool = $client->invoke (EVENT_CLIENT_XXX, ...)	786	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
425		787
426	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
427
428	Generate a global/object/player/map-specific event with the given arguments.	788	Generate an object-specific event with the given arguments.
429		789
430	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be	790	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
431	removed in future versions), and there is no public API to access override	791	removed in future versions), and there is no public API to access override
432	results (if you must, access C<@cf::invoke_results> directly).	792	results (if you must, access C<@cf::invoke_results> directly).
433		793
434	=back	794	=back
435		795
436	=cut	796	=cut
437		797
438	#############################################################################	798	#############################################################################
439
440	=head2 METHODS VALID FOR ALL ATTACHABLE OBJECTS
441
442	Attachable objects includes objects, players, clients and maps.
443
444	=over 4
445
446	=item $object->valid
447
448	Just because you have a perl object does not mean that the corresponding
449	C-level object still exists. If you try to access an object that has no
450	valid C counterpart anymore you get an exception at runtime. This method
451	can be used to test for existence of the C object part without causing an
452	exception.
453
454	=back
455
456	=cut
457
458	#############################################################################
459	# object support	799	# object support
460		800
461	sub instantiate {
462	my ($obj, $data) = @_;
463
464	$data = from_json $data;
465
466	for (@$data) {
467	my ($name, $args) = @$_;
468
469	$obj->attach ($name, %{$args || {} });
470	}
471	}
472
473	# basically do the same as instantiate, without calling instantiate
474	sub reattach {	801	sub reattach {
		802	# basically do the same as instantiate, without calling instantiate
475	my ($obj) = @_;	803	my ($obj) = @_;
		804
476	my $registry = $obj->registry;	805	my $registry = $obj->registry;
477		806
478	@$registry = ();	807	@$registry = ();
479		808
480	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	809	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
489	warn "object uses attachment '$name' that is not available, postponing.\n";	818	warn "object uses attachment '$name' that is not available, postponing.\n";
490	}	819	}
491	}	820	}
492	}	821	}
493		822
494	sub object_freezer_save {	823	cf::attachable->attach (
495	my ($filename, $rdata, $objs) = @_;
496
497	if (length $$rdata) {
498	warn sprintf "saving %s (%d,%d)\n",
499	$filename, length $$rdata, scalar @$objs;
500
501	if (open my $fh, ">:raw", "$filename~") {
502	chmod SAVE_MODE, $fh;
503	syswrite $fh, $$rdata;
504	close $fh;
505
506	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
507	chmod SAVE_MODE, $fh;
508	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
509	close $fh;
510	rename "$filename.pst~", "$filename.pst";
511	} else {
512	unlink "$filename.pst";
513	}
514
515	rename "$filename~", $filename;
516	} else {
517	warn "FATAL: $filename~: $!\n";
518	}
519	} else {
520	unlink $filename;
521	unlink "$filename.pst";
522	}
523	}
524
525	sub object_freezer_as_string {
526	my ($rdata, $objs) = @_;
527
528	use Data::Dumper;
529
530	$$rdata . Dumper $objs
531	}
532
533	sub object_thawer_load {
534	my ($filename) = @_;
535
536	local $/;
537
538	my $av;
539
540	#TODO: use sysread etc.
541	if (open my $data, "<:raw:perlio", $filename) {
542	$data = <$data>;
543	if (open my $pst, "<:raw:perlio", "$filename.pst") {
544	$av = eval { (Storable::thaw <$pst>)->{objs} };
545	}
546	return ($data, $av);
547	}
548
549	()
550	}
551
552	cf::object->attach (
553	prio => -1000000,	824	prio => -1000000,
		825	on_instantiate => sub {
		826	my ($obj, $data) = @_;
		827
		828	$data = from_json $data;
		829
		830	for (@$data) {
		831	my ($name, $args) = @$_;
		832
		833	$obj->attach ($name, %{$args || {} });
		834	}
		835	},
		836	on_reattach => \&reattach,
554	on_clone => sub {	837	on_clone => sub {
555	my ($src, $dst) = @_;	838	my ($src, $dst) = @_;
556		839
557	@{$dst->registry} = @{$src->registry};	840	@{$dst->registry} = @{$src->registry};
558		841
…		…
560		843
561	%{$dst->{_attachment}} = %{$src->{_attachment}}	844	%{$dst->{_attachment}} = %{$src->{_attachment}}
562	if exists $src->{_attachment};	845	if exists $src->{_attachment};
563	},	846	},
564	);	847	);
		848
		849	sub object_freezer_save {
		850	my ($filename, $rdata, $objs) = @_;
		851
		852	sync_job {
		853	if (length $$rdata) {
		854	warn sprintf "saving %s (%d,%d)\n",
		855	$filename, length $$rdata, scalar @$objs;
		856
		857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		858	chmod SAVE_MODE, $fh;
		859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		860	aio_fsync $fh;
		861	close $fh;
		862
		863	if (@$objs) {
		864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		865	chmod SAVE_MODE, $fh;
		866	my $data = Storable::nfreeze { version => 1, objs => $objs };
		867	aio_write $fh, 0, (length $data), $data, 0;
		868	aio_fsync $fh;
		869	close $fh;
		870	aio_rename "$filename.pst~", "$filename.pst";
		871	}
		872	} else {
		873	aio_unlink "$filename.pst";
		874	}
		875
		876	aio_rename "$filename~", $filename;
		877	} else {
		878	warn "FATAL: $filename~: $!\n";
		879	}
		880	} else {
		881	aio_unlink $filename;
		882	aio_unlink "$filename.pst";
		883	}
		884	}
		885	}
		886
		887	sub object_freezer_as_string {
		888	my ($rdata, $objs) = @_;
		889
		890	use Data::Dumper;
		891
		892	$$rdata . Dumper $objs
		893	}
		894
		895	sub object_thawer_load {
		896	my ($filename) = @_;
		897
		898	my ($data, $av);
		899
		900	(aio_load $filename, $data) >= 0
		901	or return;
		902
		903	unless (aio_stat "$filename.pst") {
		904	(aio_load "$filename.pst", $av) >= 0
		905	or return;
		906	$av = eval { (Storable::thaw $av)->{objs} };
		907	}
		908
		909	warn sprintf "loading %s (%d)\n",
		910	$filename, length $data, scalar @{$av || []};#d#
		911	return ($data, $av);
		912	}
565		913
566	#############################################################################	914	#############################################################################
567	# command handling &c	915	# command handling &c
568		916
569	=item cf::register_command $name => \&callback($ob,$args);	917	=item cf::register_command $name => \&callback($ob,$args);
…		…
731	};	1079	};
732		1080
733	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
734		1082
735	#############################################################################	1083	#############################################################################
736	# load/save perl data associated with player->ob objects
737		1084
738	sub all_objects(@) {	1085	=head2 CORE EXTENSIONS
739	@_, map all_objects ($_->inv), @_
740	}
741		1086
742	# TODO: compatibility cruft, remove when no longer needed	1087	Functions and methods that extend core crossfire objects.
743	cf::player->attach (	1088
744	on_load => sub {	1089	=cut
		1090
		1091	package cf::player;
		1092
		1093	use Coro::AIO;
		1094
		1095	=head3 cf::player
		1096
		1097	=over 4
		1098
		1099	=item cf::player::find $login
		1100
		1101	Returns the given player object, loading it if necessary (might block).
		1102
		1103	=cut
		1104
		1105	sub playerdir($) {
		1106	cf::localdir
		1107	. "/"
		1108	. cf::playerdir
		1109	. "/"
		1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1111	}
		1112
		1113	sub path($) {
		1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1115
		1116	(playerdir $login) . "/$login.pl"
		1117	}
		1118
		1119	sub find_active($) {
		1120	$cf::PLAYER{$_[0]}
		1121	and $cf::PLAYER{$_[0]}->active
		1122	and $cf::PLAYER{$_[0]}
		1123	}
		1124
		1125	sub exists($) {
		1126	my ($login) = @_;
		1127
		1128	$cf::PLAYER{$login}
		1129	or cf::sync_job { !aio_stat $login }
		1130	}
		1131
		1132	sub find($) {
		1133	return $cf::PLAYER{$_[0]} || do {
		1134	my $login = $_[0];
		1135
		1136	my $guard = cf::lock_acquire "user_find:$login";
		1137
		1138	$cf::PLAYER{$_[0]} || do {
		1139	my $pl = load_pl path $login
		1140	or return;
		1141	$cf::PLAYER{$login} = $pl
		1142	}
		1143	}
		1144	}
		1145
		1146	sub save($) {
		1147	my ($pl) = @_;
		1148
		1149	return if $pl->{deny_save};
		1150
		1151	my $path = path $pl;
		1152	my $guard = cf::lock_acquire "user_save:$path";
		1153
		1154	return if $pl->{deny_save};
		1155
		1156	aio_mkdir playerdir $pl, 0770;
		1157	$pl->{last_save} = $cf::RUNTIME;
		1158
		1159	$pl->save_pl ($path);
		1160	Coro::cede;
		1161	}
		1162
		1163	sub new($) {
		1164	my ($login) = @_;
		1165
		1166	my $self = create;
		1167
		1168	$self->ob->name ($login);
		1169	$self->{deny_save} = 1;
		1170
		1171	$cf::PLAYER{$login} = $self;
		1172
		1173	$self
		1174	}
		1175
		1176	=item $pl->quit_character
		1177
		1178	Nukes the player without looking back. If logged in, the connection will
		1179	be destroyed. May block for a long time.
		1180
		1181	=cut
		1182
		1183	sub quit_character {
		1184	my ($pl) = @_;
		1185
		1186	$pl->{deny_save} = 1;
		1187	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1188
		1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1190	$pl->deactivate;
		1191	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1192	$pl->ns->destroy if $pl->ns;
		1193
		1194	my $path = playerdir $pl;
		1195	my $temp = "$path~$cf::RUNTIME~deleting~";
		1196	aio_rename $path, $temp;
		1197	delete $cf::PLAYER{$pl->ob->name};
		1198	$pl->destroy;
		1199	IO::AIO::aio_rmtree $temp;
		1200	}
		1201
		1202	=item cf::player::list_logins
		1203
		1204	Returns am arrayref of all valid playernames in the system, can take a
		1205	while and may block, so not sync_job-capable, ever.
		1206
		1207	=cut
		1208
		1209	sub list_logins {
		1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1211	or return [];
		1212
		1213	my @logins;
		1214
		1215	for my $login (@$dirs) {
		1216	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1217	aio_read $fh, 0, 512, my $buf, 0 or next;
		1218	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1219
		1220	utf8::decode $login;
		1221	push @logins, $login;
		1222	}
		1223
		1224	\@logins
		1225	}
		1226
		1227	=item $player->maps
		1228
		1229	Returns an arrayref of cf::path's of all maps that are private for this
		1230	player. May block.
		1231
		1232	=cut
		1233
		1234	sub maps($) {
		1235	my ($pl) = @_;
		1236
		1237	my $files = aio_readdir playerdir $pl
		1238	or return;
		1239
		1240	my @paths;
		1241
		1242	for (@$files) {
		1243	utf8::decode $_;
		1244	next if /\.(?:pl|pst)$/;
		1245	next unless /^$PATH_SEP/;
		1246
		1247	s/$PATH_SEP/\//g;
		1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
		1249	}
		1250
		1251	\@paths
		1252	}
		1253
		1254	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1255
		1256	Sends an ext reply to the player.
		1257
		1258	=cut
		1259
		1260	sub ext_reply($$$%) {
		1261	my ($self, $id, %msg) = @_;
		1262
		1263	$msg{msgid} = $id;
		1264
		1265	$self->send ("ext " . cf::to_json \%msg);
		1266	}
		1267
		1268	package cf;
		1269
		1270	=back
		1271
		1272
		1273	=head3 cf::map
		1274
		1275	=over 4
		1276
		1277	=cut
		1278
		1279	package cf::map;
		1280
		1281	use Fcntl;
		1282	use Coro::AIO;
		1283
		1284	our $MAX_RESET = 3600;
		1285	our $DEFAULT_RESET = 3000;
		1286
		1287	sub generate_random_map {
		1288	my ($path, $rmp) = @_;
		1289
		1290	# mit "rum" bekleckern, nicht
		1291	cf::map::_create_random_map
		1292	$path,
		1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1296	$rmp->{exit_on_final_map},
		1297	$rmp->{xsize}, $rmp->{ysize},
		1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1303	(cf::region::find $rmp->{region})
		1304	}
		1305
		1306	# and all this just because we cannot iterate over
		1307	# all maps in C++...
		1308	sub change_all_map_light {
		1309	my ($change) = @_;
		1310
		1311	$_->change_map_light ($change)
		1312	for grep $_->outdoor, values %cf::MAP;
		1313	}
		1314
		1315	sub try_load_header($) {
745	my ($pl, $path) = @_;	1316	my ($path) = @_;
746		1317
747	for my $o (all_objects $pl->ob) {	1318	utf8::encode $path;
748	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1319	aio_open $path, O_RDONLY, 0
749	$o->set_ob_key_value ("_perl_data");	1320	or return;
750		1321
751	%$o = %{ Storable::thaw pack "H*", $value };	1322	my $map = cf::map::new
		1323	or return;
		1324
		1325	# for better error messages only, will be overwritten
		1326	$map->path ($path);
		1327
		1328	$map->load_header ($path)
		1329	or return;
		1330
		1331	$map->{load_path} = $path;
		1332
		1333	$map
		1334	}
		1335
		1336	sub find;
		1337	sub find {
		1338	my ($path, $origin) = @_;
		1339
		1340	#warn "find<$path,$origin>\n";#d#
		1341
		1342	$path = new cf::path $path, $origin && $origin->path;
		1343	my $key = $path->as_string;
		1344
		1345	cf::lock_wait "map_find:$key";
		1346
		1347	$cf::MAP{$key} || do {
		1348	my $guard = cf::lock_acquire "map_find:$key";
		1349
		1350	# do it the slow way
		1351	my $map = try_load_header $path->save_path;
		1352
		1353	Coro::cede;
		1354
		1355	if ($map) {
		1356	$map->last_access ((delete $map->{last_access})
		1357	|| $cf::RUNTIME); #d#
		1358	# safety
		1359	$map->{instantiate_time} = $cf::RUNTIME
		1360	if $map->{instantiate_time} > $cf::RUNTIME;
		1361	} else {
		1362	if (my $rmp = $path->random_map_params) {
		1363	$map = generate_random_map $key, $rmp;
		1364	} else {
		1365	$map = try_load_header $path->load_path;
752	}	1366	}
		1367
		1368	$map or return;
		1369
		1370	$map->{load_original} = 1;
		1371	$map->{instantiate_time} = $cf::RUNTIME;
		1372	$map->last_access ($cf::RUNTIME);
		1373	$map->instantiate;
		1374
		1375	# per-player maps become, after loading, normal maps
		1376	$map->per_player (0) if $path->{user_rel};
753	}	1377	}
		1378
		1379	$map->path ($key);
		1380	$map->{path} = $path;
		1381	$map->{last_save} = $cf::RUNTIME;
		1382
		1383	Coro::cede;
		1384
		1385	if ($map->should_reset) {
		1386	$map->reset;
		1387	undef $guard;
		1388	$map = find $path
		1389	or return;
		1390	}
		1391
		1392	$cf::MAP{$key} = $map
754	},	1393	}
755	);	1394	}
756		1395
757	#############################################################################	1396	sub load {
		1397	my ($self) = @_;
758		1398
759	=head2 CORE EXTENSIONS	1399	my $path = $self->{path};
		1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
760		1401
761	Functions and methods that extend core crossfire objects.	1402	return if $self->in_memory != cf::MAP_SWAPPED;
762		1403
763	=head3 cf::player	1404	$self->in_memory (cf::MAP_LOADING);
		1405
		1406	$self->alloc;
		1407	$self->load_objects ($self->{load_path}, 1)
		1408	or return;
		1409
		1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1411	if delete $self->{load_original};
		1412
		1413	if (my $uniq = $path->uniq_path) {
		1414	utf8::encode $uniq;
		1415	if (aio_open $uniq, O_RDONLY, 0) {
		1416	$self->clear_unique_items;
		1417	$self->load_objects ($uniq, 0);
		1418	}
		1419	}
		1420
		1421	Coro::cede;
		1422
		1423	# now do the right thing for maps
		1424	$self->link_multipart_objects;
		1425
		1426	if ($self->{path}->is_style_map) {
		1427	$self->{deny_save} = 1;
		1428	$self->{deny_reset} = 1;
		1429	} else {
		1430	$self->fix_auto_apply;
		1431	$self->decay_objects;
		1432	$self->update_buttons;
		1433	$self->set_darkness_map;
		1434	$self->difficulty ($self->estimate_difficulty)
		1435	unless $self->difficulty;
		1436	$self->activate;
		1437	}
		1438
		1439	Coro::cede;
		1440
		1441	$self->in_memory (cf::MAP_IN_MEMORY);
		1442	}
		1443
		1444	# find and load all maps in the 3x3 area around a map
		1445	sub load_diag {
		1446	my ($map) = @_;
		1447
		1448	my @diag; # diagonal neighbours
		1449
		1450	for (0 .. 3) {
		1451	my $neigh = $map->tile_path ($_)
		1452	or next;
		1453	$neigh = find $neigh, $map
		1454	or next;
		1455	$neigh->load;
		1456
		1457	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1458	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1459	}
		1460
		1461	for (@diag) {
		1462	my $neigh = find @$_
		1463	or next;
		1464	$neigh->load;
		1465	}
		1466	}
		1467
		1468	sub find_sync {
		1469	my ($path, $origin) = @_;
		1470
		1471	cf::sync_job { find $path, $origin }
		1472	}
		1473
		1474	sub do_load_sync {
		1475	my ($map) = @_;
		1476
		1477	cf::sync_job { $map->load };
		1478	}
		1479
		1480	our %MAP_PREFETCH;
		1481	our $MAP_PREFETCHER = Coro::async {
		1482	while () {
		1483	while (%MAP_PREFETCH) {
		1484	my $key = each %MAP_PREFETCH
		1485	or next;
		1486	my $path = delete $MAP_PREFETCH{$key};
		1487
		1488	my $map = find $path
		1489	or next;
		1490	$map->load;
		1491	}
		1492	Coro::schedule;
		1493	}
		1494	};
		1495
		1496	sub find_async {
		1497	my ($path, $origin) = @_;
		1498
		1499	$path = new cf::path $path, $origin && $origin->path;
		1500	my $key = $path->as_string;
		1501
		1502	if (my $map = $cf::MAP{$key}) {
		1503	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1504	}
		1505
		1506	$MAP_PREFETCH{$key} = $path;
		1507	$MAP_PREFETCHER->ready;
		1508
		1509	()
		1510	}
		1511
		1512	sub save {
		1513	my ($self) = @_;
		1514
		1515	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1516
		1517	$self->{last_save} = $cf::RUNTIME;
		1518
		1519	return unless $self->dirty;
		1520
		1521	my $save = $self->{path}->save_path; utf8::encode $save;
		1522	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1523
		1524	$self->{load_path} = $save;
		1525
		1526	return if $self->{deny_save};
		1527
		1528	local $self->{last_access} = $self->last_access;#d#
		1529
		1530	cf::async {
		1531	$_->contr->save for $self->players;
		1532	};
		1533
		1534	if ($uniq) {
		1535	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1536	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1537	} else {
		1538	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1539	}
		1540	}
		1541
		1542	sub swap_out {
		1543	my ($self) = @_;
		1544
		1545	# save first because save cedes
		1546	$self->save;
		1547
		1548	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1549
		1550	return if $self->players;
		1551	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1552	return if $self->{deny_save};
		1553
		1554	$self->clear;
		1555	$self->in_memory (cf::MAP_SWAPPED);
		1556	}
		1557
		1558	sub reset_at {
		1559	my ($self) = @_;
		1560
		1561	# TODO: safety, remove and allow resettable per-player maps
		1562	return 1e99 if $self->{path}{user_rel};
		1563	return 1e99 if $self->{deny_reset};
		1564
		1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1567
		1568	$time + $to
		1569	}
		1570
		1571	sub should_reset {
		1572	my ($self) = @_;
		1573
		1574	$self->reset_at <= $cf::RUNTIME
		1575	}
		1576
		1577	sub unlink_save {
		1578	my ($self) = @_;
		1579
		1580	utf8::encode (my $save = $self->{path}->save_path);
		1581	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1582	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1583	}
		1584
		1585	sub rename {
		1586	my ($self, $new_path) = @_;
		1587
		1588	$self->unlink_save;
		1589
		1590	delete $cf::MAP{$self->path};
		1591	$self->{path} = new cf::path $new_path;
		1592	$self->path ($self->{path}->as_string);
		1593	$cf::MAP{$self->path} = $self;
		1594
		1595	$self->save;
		1596	}
		1597
		1598	sub reset {
		1599	my ($self) = @_;
		1600
		1601	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1602
		1603	return if $self->players;
		1604	return if $self->{path}{user_rel};#d#
		1605
		1606	warn "resetting map ", $self->path;#d#
		1607
		1608	delete $cf::MAP{$self->path};
		1609
		1610	$_->clear_links_to ($self) for values %cf::MAP;
		1611
		1612	$self->unlink_save;
		1613	$self->destroy;
		1614	}
		1615
		1616	my $nuke_counter = "aaaa";
		1617
		1618	sub nuke {
		1619	my ($self) = @_;
		1620
		1621	$self->{deny_save} = 1;
		1622	$self->reset_timeout (1);
		1623	$self->rename ("{nuke}/" . ($nuke_counter++));
		1624	$self->reset; # polite request, might not happen
		1625	}
		1626
		1627	sub customise_for {
		1628	my ($map, $ob) = @_;
		1629
		1630	if ($map->per_player) {
		1631	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1632	}
		1633
		1634	$map
		1635	}
		1636
		1637	package cf;
		1638
		1639	=back
		1640
		1641	=head3 cf::object
		1642
		1643	=cut
		1644
		1645	package cf::object;
764		1646
765	=over 4	1647	=over 4
766		1648
767	=item cf::player::exists $login	1649	=item $ob->inv_recursive
768		1650
769	Returns true when the given account exists.	1651	Returns the inventory of the object _and_ their inventories, recursively.
770		1652
771	=cut	1653	=cut
772		1654
773	sub cf::player::exists($) {	1655	sub inv_recursive_;
774	cf::player::find $_[0]	1656	sub inv_recursive_ {
775	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1657	map { $_, inv_recursive_ $_->inv } @_
776	}	1658	}
777		1659
778	=item $player->ext_reply ($msgid, $msgtype, %msg)	1660	sub inv_recursive {
779		1661	inv_recursive_ inv $_[0]
780	Sends an ext reply to the player.
781
782	=cut
783
784	sub cf::player::ext_reply($$$%) {
785	my ($self, $id, %msg) = @_;
786
787	$msg{msgid} = $id;
788
789	$self->send ("ext " . to_json \%msg);
790	}	1662	}
		1663
		1664	package cf;
791		1665
792	=back	1666	=back
793		1667
794	=head3 cf::object::player	1668	=head3 cf::object::player
795		1669
…		…
833	(ref $cf::CFG{"may_$access"}	1707	(ref $cf::CFG{"may_$access"}
834	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1708	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
835	: $cf::CFG{"may_$access"})	1709	: $cf::CFG{"may_$access"})
836	}	1710	}
837		1711
		1712	=item $player_object->enter_link
		1713
		1714	Freezes the player and moves him/her to a special map (C<{link}>).
		1715
		1716	The player should be reaosnably safe there for short amounts of time. You
		1717	I<MUST> call C<leave_link> as soon as possible, though.
		1718
		1719	=item $player_object->leave_link ($map, $x, $y)
		1720
		1721	Moves the player out of the specila link map onto the given map. If the
		1722	map is not valid (or omitted), the player will be moved back to the
		1723	location he/she was before the call to C<enter_link>, or, if that fails,
		1724	to the emergency map position.
		1725
		1726	Might block.
		1727
		1728	=cut
		1729
		1730	sub cf::object::player::enter_link {
		1731	my ($self) = @_;
		1732
		1733	$self->deactivate_recursive;
		1734
		1735	return if $self->map == $LINK_MAP;
		1736
		1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1738	if $self->map;
		1739
		1740	$self->enter_map ($LINK_MAP, 20, 20);
		1741	}
		1742
		1743	sub cf::object::player::leave_link {
		1744	my ($self, $map, $x, $y) = @_;
		1745
		1746	my $link_pos = delete $self->{_link_pos};
		1747
		1748	unless ($map) {
		1749	# restore original map position
		1750	($map, $x, $y) = @{ $link_pos || [] };
		1751	$map = cf::map::find $map;
		1752
		1753	unless ($map) {
		1754	($map, $x, $y) = @$EMERGENCY_POSITION;
		1755	$map = cf::map::find $map
		1756	or die "FATAL: cannot load emergency map\n";
		1757	}
		1758	}
		1759
		1760	($x, $y) = (-1, -1)
		1761	unless (defined $x) && (defined $y);
		1762
		1763	# use -1 or undef as default coordinates, not 0, 0
		1764	($x, $y) = ($map->enter_x, $map->enter_y)
		1765	if $x <=0 && $y <= 0;
		1766
		1767	$map->load;
		1768	$map->load_diag;
		1769
		1770	return unless $self->contr->active;
		1771	$self->activate_recursive;
		1772	$self->enter_map ($map, $x, $y);
		1773	}
		1774
		1775	cf::player->attach (
		1776	on_logout => sub {
		1777	my ($pl) = @_;
		1778
		1779	# abort map switching before logout
		1780	if ($pl->ob->{_link_pos}) {
		1781	cf::sync_job {
		1782	$pl->ob->leave_link
		1783	};
		1784	}
		1785	},
		1786	on_login => sub {
		1787	my ($pl) = @_;
		1788
		1789	# try to abort aborted map switching on player login :)
		1790	# should happen only on crashes
		1791	if ($pl->ob->{_link_pos}) {
		1792	$pl->ob->enter_link;
		1793	(async {
		1794	# we need this sleep as the login has a concurrent enter_exit running
		1795	# and this sleep increases chances of the player not ending up in scorn
		1796	$pl->ob->reply (undef,
		1797	"There was an internal problem at your last logout, "
		1798	. "the server will try to bring you to your intended destination in a second.",
		1799	cf::NDI_RED);
		1800	Coro::Timer::sleep 1;
		1801	$pl->ob->leave_link;
		1802	})->prio (2);
		1803	}
		1804	},
		1805	);
		1806
		1807	=item $player_object->goto ($path, $x, $y)
		1808
		1809	=cut
		1810
		1811	sub cf::object::player::goto {
		1812	my ($self, $path, $x, $y) = @_;
		1813
		1814	$path = new cf::path $path;
		1815	$path ne "/" or Carp::cluck ("oy");#d#
		1816
		1817	$self->enter_link;
		1818
		1819	(async {
		1820	my $map = cf::map::find $path->as_string;
		1821	$map = $map->customise_for ($self) if $map;
		1822
		1823	# warn "entering ", $map->path, " at ($x, $y)\n"
		1824	# if $map;
		1825
		1826	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1827
		1828	$self->leave_link ($map, $x, $y);
		1829	})->prio (1);
		1830	}
		1831
		1832	=item $player_object->enter_exit ($exit_object)
		1833
		1834	=cut
		1835
		1836	sub parse_random_map_params {
		1837	my ($spec) = @_;
		1838
		1839	my $rmp = { # defaults
		1840	xsize => 10,
		1841	ysize => 10,
		1842	};
		1843
		1844	for (split /\n/, $spec) {
		1845	my ($k, $v) = split /\s+/, $_, 2;
		1846
		1847	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1848	}
		1849
		1850	$rmp
		1851	}
		1852
		1853	sub prepare_random_map {
		1854	my ($exit) = @_;
		1855
		1856	# all this does is basically replace the /! path by
		1857	# a new random map path (?random/...) with a seed
		1858	# that depends on the exit object
		1859
		1860	my $rmp = parse_random_map_params $exit->msg;
		1861
		1862	if ($exit->map) {
		1863	$rmp->{region} = $exit->map->region_name;
		1864	$rmp->{origin_map} = $exit->map->path;
		1865	$rmp->{origin_x} = $exit->x;
		1866	$rmp->{origin_y} = $exit->y;
		1867	}
		1868
		1869	$rmp->{random_seed} ||= $exit->random_seed;
		1870
		1871	my $data = cf::to_json $rmp;
		1872	my $md5 = Digest::MD5::md5_hex $data;
		1873
		1874	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1875	aio_write $fh, 0, (length $data), $data, 0;
		1876
		1877	$exit->slaying ("?random/$md5");
		1878	$exit->msg (undef);
		1879	}
		1880	}
		1881
		1882	sub cf::object::player::enter_exit {
		1883	my ($self, $exit) = @_;
		1884
		1885	return unless $self->type == cf::PLAYER;
		1886
		1887	$self->enter_link;
		1888
		1889	(async {
		1890	$self->deactivate_recursive; # just to be sure
		1891	unless (eval {
		1892	prepare_random_map $exit
		1893	if $exit->slaying eq "/!";
		1894
		1895	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1896	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1897
		1898	1;
		1899	}) {
		1900	$self->message ("Something went wrong deep within the crossfire server. "
		1901	. "I'll try to bring you back to the map you were before. "
		1902	. "Please report this to the dungeon master",
		1903	cf::NDI_UNIQUE | cf::NDI_RED);
		1904
		1905	warn "ERROR in enter_exit: $@";
		1906	$self->leave_link;
		1907	}
		1908	})->prio (1);
		1909	}
		1910
838	=head3 cf::client	1911	=head3 cf::client
839		1912
840	=over 4	1913	=over 4
841		1914
842	=item $client->send_drawinfo ($text, $flags)	1915	=item $client->send_drawinfo ($text, $flags)
…		…
885	on_reply => sub {	1958	on_reply => sub {
886	my ($ns, $msg) = @_;	1959	my ($ns, $msg) = @_;
887		1960
888	# this weird shuffling is so that direct followup queries	1961	# this weird shuffling is so that direct followup queries
889	# get handled first	1962	# get handled first
890	my $queue = delete $ns->{query_queue};	1963	my $queue = delete $ns->{query_queue}
		1964	or return; # be conservative, not sure how that can happen, but we saw a crash here
891		1965
892	(shift @$queue)->[1]->($msg);	1966	(shift @$queue)->[1]->($msg);
893		1967
894	push @{ $ns->{query_queue} }, @$queue;	1968	push @{ $ns->{query_queue} }, @$queue;
895		1969
896	if (@{ $ns->{query_queue} } == @$queue) {	1970	if (@{ $ns->{query_queue} } == @$queue) {
897	if (@$queue) {	1971	if (@$queue) {
898	$ns->send_packet ($ns->{query_queue}[0][0]);	1972	$ns->send_packet ($ns->{query_queue}[0][0]);
899	} else {	1973	} else {
900	$ns->state (ST_PLAYING);	1974	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
901	}	1975	}
902	}	1976	}
		1977	},
		1978	);
		1979
		1980	=item $client->async (\&cb)
		1981
		1982	Create a new coroutine, running the specified callback. The coroutine will
		1983	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1984	or loss of connection).
		1985
		1986	=cut
		1987
		1988	sub cf::client::async {
		1989	my ($self, $cb) = @_;
		1990
		1991	my $coro = &Coro::async ($cb);
		1992
		1993	$coro->on_destroy (sub {
		1994	delete $self->{_coro}{$coro+0};
		1995	});
		1996
		1997	$self->{_coro}{$coro+0} = $coro;
		1998
		1999	$coro
		2000	}
		2001
		2002	cf::client->attach (
		2003	on_destroy => sub {
		2004	my ($ns) = @_;
		2005
		2006	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
903	},	2007	},
904	);	2008	);
905		2009
906	=back	2010	=back
907		2011
…		…
1064		2168
1065	{	2169	{
1066	my $path = cf::localdir . "/database.pst";	2170	my $path = cf::localdir . "/database.pst";
1067		2171
1068	sub db_load() {	2172	sub db_load() {
1069	warn "loading database $path\n";#d# remove later
1070	$DB = stat $path ? Storable::retrieve $path : { };	2173	$DB = stat $path ? Storable::retrieve $path : { };
1071	}	2174	}
1072		2175
1073	my $pid;	2176	my $pid;
1074		2177
1075	sub db_save() {	2178	sub db_save() {
1076	warn "saving database $path\n";#d# remove later
1077	waitpid $pid, 0 if $pid;	2179	waitpid $pid, 0 if $pid;
1078	if (0 == ($pid = fork)) {	2180	if (0 == ($pid = fork)) {
1079	$DB->{_meta}{version} = 1;	2181	$DB->{_meta}{version} = 1;
1080	Storable::nstore $DB, "$path~";	2182	Storable::nstore $DB, "$path~";
1081	rename "$path~", $path;	2183	rename "$path~", $path;
…		…
1129	open my $fh, "<:utf8", cf::confdir . "/config"	2231	open my $fh, "<:utf8", cf::confdir . "/config"
1130	or return;	2232	or return;
1131		2233
1132	local $/;	2234	local $/;
1133	*CFG = YAML::Syck::Load <$fh>;	2235	*CFG = YAML::Syck::Load <$fh>;
		2236
		2237	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2238
		2239	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2240	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2241
		2242	if (exists $CFG{mlockall}) {
		2243	eval {
		2244	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2245	and die "WARNING: m(un)lockall failed: $!\n";
		2246	};
		2247	warn $@ if $@;
		2248	}
1134	}	2249	}
1135		2250
1136	sub main {	2251	sub main {
		2252	# we must not ever block the main coroutine
		2253	local $Coro::idle = sub {
		2254	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2255	async { Event::one_event };
		2256	};
		2257
1137	cfg_load;	2258	cfg_load;
1138	db_load;	2259	db_load;
1139	load_extensions;	2260	load_extensions;
1140	Event::loop;	2261	Event::loop;
1141	}	2262	}
1142		2263
1143	#############################################################################	2264	#############################################################################
1144	# initialisation	2265	# initialisation and cleanup
1145		2266
		2267	# install some emergency cleanup handlers
		2268	BEGIN {
		2269	for my $signal (qw(INT HUP TERM)) {
		2270	Event->signal (
		2271	data => WF_AUTOCANCEL,
		2272	signal => $signal,
		2273	cb => sub {
		2274	cf::cleanup "SIG$signal";
		2275	},
		2276	);
		2277	}
		2278	}
		2279
		2280	sub emergency_save() {
		2281	my $freeze_guard = cf::freeze_mainloop;
		2282
		2283	warn "enter emergency perl save\n";
		2284
		2285	cf::sync_job {
		2286	# use a peculiar iteration method to avoid tripping on perl
		2287	# refcount bugs in for. also avoids problems with players
		2288	# and maps saved/Destroyed asynchronously.
		2289	warn "begin emergency player save\n";
		2290	for my $login (keys %cf::PLAYER) {
		2291	my $pl = $cf::PLAYER{$login} or next;
		2292	$pl->valid or next;
		2293	$pl->save;
		2294	}
		2295	warn "end emergency player save\n";
		2296
		2297	warn "begin emergency map save\n";
		2298	for my $path (keys %cf::MAP) {
		2299	my $map = $cf::MAP{$path} or next;
		2300	$map->valid or next;
		2301	$map->save;
		2302	}
		2303	warn "end emergency map save\n";
		2304	};
		2305
		2306	warn "leave emergency perl save\n";
		2307	}
		2308
1146	sub _perl_reload(&) {	2309	sub reload() {
1147	my ($msg) = @_;	2310	# can/must only be called in main
		2311	if ($Coro::current != $Coro::main) {
		2312	warn "can only reload from main coroutine\n";
		2313	return;
		2314	}
1148		2315
1149	$msg->("reloading...");	2316	warn "reloading...";
		2317
		2318	my $guard = freeze_mainloop;
		2319	cf::emergency_save;
1150		2320
1151	eval {	2321	eval {
		2322	# if anything goes wrong in here, we should simply crash as we already saved
		2323
1152	# cancel all watchers	2324	# cancel all watchers
1153	for (Event::all_watchers) {	2325	for (Event::all_watchers) {
1154	$_->cancel if $_->data & WF_AUTOCANCEL;	2326	$_->cancel if $_->data & WF_AUTOCANCEL;
1155	}	2327	}
1156		2328
		2329	# cancel all extension coros
		2330	$_->cancel for values %EXT_CORO;
		2331	%EXT_CORO = ();
		2332
1157	# unload all extensions	2333	# unload all extensions
1158	for (@exts) {	2334	for (@exts) {
1159	$msg->("unloading <$_>");	2335	warn "unloading <$_>";
1160	unload_extension $_;	2336	unload_extension $_;
1161	}	2337	}
1162		2338
1163	# unload all modules loaded from $LIBDIR	2339	# unload all modules loaded from $LIBDIR
1164	while (my ($k, $v) = each %INC) {	2340	while (my ($k, $v) = each %INC) {
1165	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2341	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1166		2342
1167	$msg->("removing <$k>");	2343	warn "removing <$k>";
1168	delete $INC{$k};	2344	delete $INC{$k};
1169		2345
1170	$k =~ s/\.pm$//;	2346	$k =~ s/\.pm$//;
1171	$k =~ s/\//::/g;	2347	$k =~ s/\//::/g;
1172		2348
…		…
1177	Symbol::delete_package $k;	2353	Symbol::delete_package $k;
1178	}	2354	}
1179		2355
1180	# sync database to disk	2356	# sync database to disk
1181	cf::db_sync;	2357	cf::db_sync;
		2358	IO::AIO::flush;
1182		2359
1183	# get rid of safe::, as good as possible	2360	# get rid of safe::, as good as possible
1184	Symbol::delete_package "safe::$_"	2361	Symbol::delete_package "safe::$_"
1185	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2362	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1186		2363
1187	# remove register_script_function callbacks	2364	# remove register_script_function callbacks
1188	# TODO	2365	# TODO
1189		2366
1190	# unload cf.pm "a bit"	2367	# unload cf.pm "a bit"
…		…
1193	# don't, removes xs symbols, too,	2370	# don't, removes xs symbols, too,
1194	# and global variables created in xs	2371	# and global variables created in xs
1195	#Symbol::delete_package __PACKAGE__;	2372	#Symbol::delete_package __PACKAGE__;
1196		2373
1197	# reload cf.pm	2374	# reload cf.pm
1198	$msg->("reloading cf.pm");	2375	warn "reloading cf.pm";
1199	require cf;	2376	require cf;
		2377	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1200		2378
1201	# load config and database again	2379	# load config and database again
1202	cf::cfg_load;	2380	cf::cfg_load;
1203	cf::db_load;	2381	cf::db_load;
1204		2382
1205	# load extensions	2383	# load extensions
1206	$msg->("load extensions");	2384	warn "load extensions";
1207	cf::load_extensions;	2385	cf::load_extensions;
1208		2386
1209	# reattach attachments to objects	2387	# reattach attachments to objects
1210	$msg->("reattach");	2388	warn "reattach";
1211	_global_reattach;	2389	_global_reattach;
		2390	reattach $_ for values %MAP;
1212	};	2391	};
1213	$msg->($@) if $@;
1214		2392
1215	$msg->("reloaded");	2393	if ($@) {
		2394	warn $@;
		2395	warn "error while reloading, exiting.";
		2396	exit 1;
		2397	}
		2398
		2399	warn "reloaded successfully";
1216	};	2400	};
1217		2401
1218	sub perl_reload() {	2402	#############################################################################
1219	_perl_reload {	2403
1220	warn $_[0];	2404	unless ($LINK_MAP) {
1221	print "$_[0]\n";	2405	$LINK_MAP = cf::map::new;
1222	};	2406
		2407	$LINK_MAP->width (41);
		2408	$LINK_MAP->height (41);
		2409	$LINK_MAP->alloc;
		2410	$LINK_MAP->path ("{link}");
		2411	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2412	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2413
		2414	# dirty hack because... archetypes are not yet loaded
		2415	Event->timer (
		2416	after => 10,
		2417	cb => sub {
		2418	$_[0]->w->cancel;
		2419
		2420	# provide some exits "home"
		2421	my $exit = cf::object::new "exit";
		2422
		2423	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2424	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2425	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2426
		2427	$LINK_MAP->insert ($exit->clone, 19, 19);
		2428	$LINK_MAP->insert ($exit->clone, 19, 20);
		2429	$LINK_MAP->insert ($exit->clone, 19, 21);
		2430	$LINK_MAP->insert ($exit->clone, 20, 19);
		2431	$LINK_MAP->insert ($exit->clone, 20, 21);
		2432	$LINK_MAP->insert ($exit->clone, 21, 19);
		2433	$LINK_MAP->insert ($exit->clone, 21, 20);
		2434	$LINK_MAP->insert ($exit->clone, 21, 21);
		2435
		2436	$exit->destroy;
		2437	});
		2438
		2439	$LINK_MAP->{deny_save} = 1;
		2440	$LINK_MAP->{deny_reset} = 1;
		2441
		2442	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1223	}	2443	}
1224		2444
1225	register "<global>", __PACKAGE__;	2445	register "<global>", __PACKAGE__;
1226		2446
1227	register_command "perl-reload" => sub {	2447	register_command "reload" => sub {
1228	my ($who, $arg) = @_;	2448	my ($who, $arg) = @_;
1229		2449
1230	if ($who->flag (FLAG_WIZ)) {	2450	if ($who->flag (FLAG_WIZ)) {
1231	_perl_reload {	2451	$who->message ("start of reload.");
1232	warn $_[0];	2452	reload;
1233	$who->message ($_[0]);	2453	$who->message ("end of reload.");
1234	};
1235	}	2454	}
1236	};	2455	};
1237		2456
1238	unshift @INC, $LIBDIR;	2457	unshift @INC, $LIBDIR;
1239		2458
1240	$TICK_WATCHER = Event->timer (	2459	$TICK_WATCHER = Event->timer (
		2460	reentrant => 0,
1241	prio => 0,	2461	prio => 0,
1242	at => $NEXT_TICK || 1,	2462	at => $NEXT_TICK || $TICK,
1243	data => WF_AUTOCANCEL,	2463	data => WF_AUTOCANCEL,
1244	cb => sub {	2464	cb => sub {
1245	cf::server_tick; # one server iteration	2465	cf::server_tick; # one server iteration
1246		2466	$RUNTIME += $TICK;
1247	my $NOW = Event::time;
1248	$NEXT_TICK += $TICK;	2467	$NEXT_TICK += $TICK;
1249		2468
		2469	$WAIT_FOR_TICK->broadcast;
		2470	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2471
1250	# if we are delayed by four ticks or more, skip them all	2472	# if we are delayed by four ticks or more, skip them all
1251	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2473	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1252		2474
1253	$TICK_WATCHER->at ($NEXT_TICK);	2475	$TICK_WATCHER->at ($NEXT_TICK);
1254	$TICK_WATCHER->start;	2476	$TICK_WATCHER->start;
1255	},	2477	},
1256	);	2478	);
1257		2479
1258	IO::AIO::max_poll_time $TICK * 0.2;	2480	IO::AIO::max_poll_time $TICK * 0.2;
1259		2481
		2482	Event->io (
1260	Event->io (fd => IO::AIO::poll_fileno,	2483	fd => IO::AIO::poll_fileno,
1261	poll => 'r',	2484	poll => 'r',
1262	prio => 5,	2485	prio => 5,
1263	data => WF_AUTOCANCEL,	2486	data => WF_AUTOCANCEL,
1264	cb => \&IO::AIO::poll_cb);	2487	cb => \&IO::AIO::poll_cb,
		2488	);
		2489
		2490	Event->timer (
		2491	data => WF_AUTOCANCEL,
		2492	after => 0,
		2493	interval => 10,
		2494	cb => sub {
		2495	(Coro::unblock_sub {
		2496	write_runtime
		2497	or warn "ERROR: unable to write runtime file: $!";
		2498	})->();
		2499	},
		2500	);
		2501
		2502	END { cf::emergency_save }
1265		2503
1266	1	2504	1
1267		2505

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