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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.100 by root, Mon Dec 25 11:25:49 2006 UTC vs.
Revision 1.161 by root, Thu Jan 11 00:16:58 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro;	13	use Coro 3.3 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
		18	use Coro::AIO;
18		19
		20	use Data::Dumper;
		21	use Digest::MD5;
		22	use Fcntl;
19	use IO::AIO 2.3;	23	use IO::AIO 2.32 ();
20	use YAML::Syck ();	24	use YAML::Syck ();
21	use Time::HiRes;	25	use Time::HiRes;
22		26
23	use Event; $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
24		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
25	# 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?
26	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
27		33
28	$Coro::main->prio (Coro::PRIO_MIN);	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		35
32	our %COMMAND = ();	36	our %COMMAND = ();
33	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
35		43
36	our @EVENT;	44	our @EVENT;
37	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
38		46
39	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
40	our $TICK_WATCHER;	48	our $TICK_WATCHER;
41	our $NEXT_TICK;	49	our $NEXT_TICK;
		50	our $NOW;
42		51
43	our %CFG;	52	our %CFG;
44		53
45	our $UPTIME; $UPTIME ||= time;	54	our $UPTIME; $UPTIME ||= time;
		55	our $RUNTIME;
		56
		57	our %PLAYER; # all users
		58	our %MAP; # all maps
		59	our $LINK_MAP; # the special {link} map
		60	our $RANDOM_MAPS = cf::localdir . "/random";
		61
		62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		64
		65	binmode STDOUT;
		66	binmode STDERR;
		67
		68	# read virtual server time, if available
		69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		70	open my $fh, "<", cf::localdir . "/runtime"
		71	or die "unable to read runtime file: $!";
		72	$RUNTIME = <$fh> + 0.;
		73	}
		74
		75	mkdir cf::localdir;
		76	mkdir cf::localdir . "/" . cf::playerdir;
		77	mkdir cf::localdir . "/" . cf::tmpdir;
		78	mkdir cf::localdir . "/" . cf::uniquedir;
		79	mkdir $RANDOM_MAPS;
		80
		81	# a special map that is always available
		82	our $LINK_MAP;
		83	our $EMERGENCY_POSITION;
46		84
47	#############################################################################	85	#############################################################################
48		86
49	=head2 GLOBAL VARIABLES	87	=head2 GLOBAL VARIABLES
50		88
51	=over 4	89	=over 4
52		90
53	=item $cf::UPTIME	91	=item $cf::UPTIME
54		92
55	The timestamp of the server start (so not actually an uptime).	93	The timestamp of the server start (so not actually an uptime).
		94
		95	=item $cf::RUNTIME
		96
		97	The time this server has run, starts at 0 and is increased by $cf::TICK on
		98	every server tick.
56		99
57	=item $cf::LIBDIR	100	=item $cf::LIBDIR
58		101
59	The perl library directory, where extensions and cf-specific modules can	102	The perl library directory, where extensions and cf-specific modules can
60	be found. It will be added to C<@INC> automatically.	103	be found. It will be added to C<@INC> automatically.
61		104
		105	=item $cf::NOW
		106
		107	The time of the last (current) server tick.
		108
62	=item $cf::TICK	109	=item $cf::TICK
63		110
64	The interval between server ticks, in seconds.	111	The interval between server ticks, in seconds.
65		112
66	=item %cf::CFG	113	=item %cf::CFG
67		114
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	115	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	116	from wherever your confdir points to.
		117
		118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		119
		120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		122	processing has been done. Call C<< ->wait >> on them to maximise the
		123	window of cpu time available, or simply to synchronise to the server tick.
70		124
71	=back	125	=back
72		126
73	=cut	127	=cut
74		128
75	BEGIN {	129	BEGIN {
76	*CORE::GLOBAL::warn = sub {	130	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	131	my $msg = join "", @_;
		132	utf8::encode $msg;
		133
78	$msg .= "\n"	134	$msg .= "\n"
79	unless $msg =~ /\n$/;	135	unless $msg =~ /\n$/;
80		136
81	print STDERR "cfperl: $msg";
82	LOG llevError, "cfperl: $msg";	137	LOG llevError, $msg;
83	};	138	};
84	}	139	}
85		140
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
105		160
106	$Event::DIED = sub {	161	$Event::DIED = sub {
107	warn "error in event callback: @_";	162	warn "error in event callback: @_";
108	};	163	};
109		164
110	my %ext_pkg;
111	my @exts;
112	my @hook;
113
114	=head2 UTILITY FUNCTIONS	165	=head2 UTILITY FUNCTIONS
115		166
116	=over 4	167	=over 4
117		168
		169	=item dumpval $ref
		170
118	=cut	171	=cut
		172
		173	sub dumpval {
		174	eval {
		175	local $SIG{__DIE__};
		176	my $d;
		177	if (1) {
		178	$d = new Data::Dumper([$_[0]], ["*var"]);
		179	$d->Terse(1);
		180	$d->Indent(2);
		181	$d->Quotekeys(0);
		182	$d->Useqq(1);
		183	#$d->Bless(...);
		184	$d->Seen($_[1]) if @_ > 1;
		185	$d = $d->Dump();
		186	}
		187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		188	$d
		189	} || "[unable to dump $_[0]: '$@']";
		190	}
119		191
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	192	use JSON::Syck (); # TODO# replace by JSON::PC once working
121		193
122	=item $ref = cf::from_json $json	194	=item $ref = cf::from_json $json
123		195
…		…
139	sub to_json($) {	211	sub to_json($) {
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
141	JSON::Syck::Dump $_[0]	213	JSON::Syck::Dump $_[0]
142	}	214	}
143		215
		216	=item cf::lock_wait $string
		217
		218	Wait until the given lock is available. See cf::lock_acquire.
		219
		220	=item my $lock = cf::lock_acquire $string
		221
		222	Wait until the given lock is available and then acquires it and returns
		223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		224	for example when the coroutine gets canceled), the lock is automatically
		225	returned.
		226
		227	Lock names should begin with a unique identifier (for example, cf::map::find
		228	uses map_find and cf::map::load uses map_load).
		229
		230	=cut
		231
		232	our %LOCK;
		233
		234	sub lock_wait($) {
		235	my ($key) = @_;
		236
		237	# wait for lock, if any
		238	while ($LOCK{$key}) {
		239	push @{ $LOCK{$key} }, $Coro::current;
		240	Coro::schedule;
		241	}
		242	}
		243
		244	sub lock_acquire($) {
		245	my ($key) = @_;
		246
		247	# wait, to be sure we are not locked
		248	lock_wait $key;
		249
		250	$LOCK{$key} = [];
		251
		252	Coro::guard {
		253	# wake up all waiters, to be on the safe side
		254	$_->ready for @{ delete $LOCK{$key} };
		255	}
		256	}
		257
		258	sub freeze_mainloop {
		259	return unless $TICK_WATCHER->is_active;
		260
		261	my $guard = Coro::guard { $TICK_WATCHER->start };
		262	$TICK_WATCHER->stop;
		263	$guard
		264	}
		265
		266	=item cf::async { BLOCK }
		267
		268	Currently the same as Coro::async_pool, meaning you cannot use
		269	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		270	thing you are allowed to do is call C<prio> on it.
		271
		272	=cut
		273
		274	BEGIN { *async = \&Coro::async_pool }
		275
		276	=item cf::sync_job { BLOCK }
		277
		278	The design of crossfire+ requires that the main coro ($Coro::main) is
		279	always able to handle events or runnable, as crossfire+ is only partly
		280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		281
		282	If it must be done, put the blocking parts into C<sync_job>. This will run
		283	the given BLOCK in another coroutine while waiting for the result. The
		284	server will be frozen during this time, so the block should either finish
		285	fast or be very important.
		286
		287	=cut
		288
		289	sub sync_job(&) {
		290	my ($job) = @_;
		291
		292	if ($Coro::current == $Coro::main) {
		293	# this is the main coro, too bad, we have to block
		294	# till the operation succeeds, freezing the server :/
		295
		296	# TODO: use suspend/resume instead
		297	# (but this is cancel-safe)
		298	my $freeze_guard = freeze_mainloop;
		299
		300	my $busy = 1;
		301	my @res;
		302
		303	(async {
		304	@res = eval { $job->() };
		305	warn $@ if $@;
		306	undef $busy;
		307	})->prio (Coro::PRIO_MAX);
		308
		309	while ($busy) {
		310	Coro::cede or Event::one_event;
		311	}
		312
		313	wantarray ? @res : $res[0]
		314	} else {
		315	# we are in another coroutine, how wonderful, everything just works
		316
		317	$job->()
		318	}
		319	}
		320
		321	=item $coro = cf::async_ext { BLOCK }
		322
		323	Like async, but this coro is automatically being canceled when the
		324	extension calling this is being unloaded.
		325
		326	=cut
		327
		328	sub async_ext(&) {
		329	my $cb = shift;
		330
		331	my $coro = &Coro::async ($cb);
		332
		333	$coro->on_destroy (sub {
		334	delete $EXT_CORO{$coro+0};
		335	});
		336	$EXT_CORO{$coro+0} = $coro;
		337
		338	$coro
		339	}
		340
		341	sub write_runtime {
		342	my $runtime = cf::localdir . "/runtime";
		343
		344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		345	or return;
		346
		347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		349	and return;
		350
		351	aio_fsync $fh
		352	and return;
		353
		354	close $fh
		355	or return;
		356
		357	aio_rename "$runtime~", $runtime
		358	and return;
		359
		360	1
		361	}
		362
144	=back	363	=back
145		364
146	=cut	365	=cut
		366
		367	#############################################################################
		368
		369	package cf::path;
		370
		371	use overload
		372	'""' => \&as_string;
		373
		374	# used to convert map paths into valid unix filenames by repalcing / by ∕
		375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		376
		377	sub register {
		378	my ($pkg, $prefix) = @_;
		379
		380	$EXT_MAP{$prefix} = $pkg;
		381	}
		382
		383	sub new {
		384	my ($class, $path, $base) = @_;
		385
		386	return $path if ref $path;
		387
		388	my $self = {};
		389
		390	# {... are special paths that are not being touched
		391	# ?xxx/... are special absolute paths
		392	# ?random/... random maps
		393	# /! non-realised random map exit
		394	# /... normal maps
		395	# ~/... per-player maps without a specific player (DO NOT USE)
		396	# ~user/... per-player map of a specific user
		397
		398	$path =~ s/$PATH_SEP/\//go;
		399
		400	if ($path =~ /^{/) {
		401	# fine as it is
		402	} else {
		403	if ($path =~ s{^~([^/]+)?}{}) {
		404	# ~user
		405	$self->{user_rel} = 1;
		406
		407	if (defined $1) {
		408	$self->{user} = $1;
		409	} elsif ($base =~ m{^~([^/]+)/}) {
		410	$self->{user} = $1;
		411	} else {
		412	warn "cannot resolve user-relative path without user <$path,$base>\n";
		413	}
		414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
		415	# ?...
		416	$self->{ext} = $1;
		417	if (my $ext = $EXT_MAP{$1}) {
		418	bless $self, $ext;
		419	}
		420	} elsif ($path =~ /^\//) {
		421	# /...
		422	# already absolute
		423	} else {
		424	# relative
		425	$base =~ s{[^/]+/?$}{};
		426	return $class->new ("$base/$path");
		427	}
		428
		429	for ($path) {
		430	redo if s{/\.?/}{/};
		431	redo if s{/[^/]+/\.\./}{/};
		432	}
		433	}
		434
		435	$self->{path} = $path;
		436
		437	if ("HASH" eq ref $self) {
		438	bless $self, $class;
		439	} else {
		440	$self->init;
		441	}
		442
		443	for my $ext (values %EXT_MAP) {
		444	if (my $subst = $ext->substitute ($self)) {
		445	return $subst;
		446	}
		447	}
		448
		449	$self
		450	}
		451
		452	sub init {
		453	# nop
		454	}
		455
		456	sub substitute {
		457	()
		458	}
		459
		460	# the name / primary key / in-game path
		461	sub as_string {
		462	my ($self) = @_;
		463
		464	$self->{user_rel} ? "~$self->{user}$self->{path}"
		465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
		466	: $self->{path}
		467	}
		468
		469	# the displayed name, this is a one way mapping
		470	sub visible_name {
		471	&as_string
		472	}
		473
		474	# escape the /'s in the path
		475	sub _escaped_path {
		476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		477	$path
		478	}
		479
		480	# the original (read-only) location
		481	sub load_path {
		482	my ($self) = @_;
		483
		484	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		485	}
		486
		487	# the temporary/swap location
		488	sub save_path {
		489	my ($self) = @_;
		490
		491	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		492	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		493	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		494	}
		495
		496	# the unique path, undef == no special unique path
		497	sub uniq_path {
		498	my ($self) = @_;
		499
		500	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		501	}
		502
		503	# this is somewhat ugly, but style maps do need special treatment
		504	sub is_style_map {
		505	$_[0]{path} =~ m{^/styles/}
		506	}
		507
		508	sub load_orig {
		509	my ($self) = @_;
		510
		511	&cf::map::load_map_header ($self->load_path)
		512	}
		513
		514	sub load_temp {
		515	my ($self) = @_;
		516
		517	&cf::map::load_map_header ($self->save_path)
		518	}
		519
		520	package cf;
147		521
148	#############################################################################	522	#############################################################################
149		523
150	=head2 ATTACHABLE OBJECTS	524	=head2 ATTACHABLE OBJECTS
151		525
…		…
454	=cut	828	=cut
455		829
456	#############################################################################	830	#############################################################################
457	# object support	831	# object support
458		832
		833	sub reattach {
		834	# basically do the same as instantiate, without calling instantiate
		835	my ($obj) = @_;
		836
		837	my $registry = $obj->registry;
		838
		839	@$registry = ();
		840
		841	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		842
		843	for my $name (keys %{ $obj->{_attachment} || {} }) {
		844	if (my $attach = $attachment{$name}) {
		845	for (@$attach) {
		846	my ($klass, @attach) = @$_;
		847	_attach $registry, $klass, @attach;
		848	}
		849	} else {
		850	warn "object uses attachment '$name' that is not available, postponing.\n";
		851	}
		852	}
		853	}
		854
459	cf::attachable->attach (	855	cf::attachable->attach (
460	prio => -1000000,	856	prio => -1000000,
461	on_instantiate => sub {	857	on_instantiate => sub {
462	my ($obj, $data) = @_;	858	my ($obj, $data) = @_;
463		859
…		…
467	my ($name, $args) = @$_;	863	my ($name, $args) = @$_;
468		864
469	$obj->attach ($name, %{$args || {} });	865	$obj->attach ($name, %{$args || {} });
470	}	866	}
471	},	867	},
472	on_reattach => sub {	868	on_reattach => \&reattach,
473	# basically do the same as instantiate, without calling instantiate
474	my ($obj) = @_;
475	my $registry = $obj->registry;
476
477	@$registry = ();
478
479	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
480
481	for my $name (keys %{ $obj->{_attachment} || {} }) {
482	if (my $attach = $attachment{$name}) {
483	for (@$attach) {
484	my ($klass, @attach) = @$_;
485	_attach $registry, $klass, @attach;
486	}
487	} else {
488	warn "object uses attachment '$name' that is not available, postponing.\n";
489	}
490	}
491	},
492	on_clone => sub {	869	on_clone => sub {
493	my ($src, $dst) = @_;	870	my ($src, $dst) = @_;
494		871
495	@{$dst->registry} = @{$src->registry};	872	@{$dst->registry} = @{$src->registry};
496		873
…		…
502	);	879	);
503		880
504	sub object_freezer_save {	881	sub object_freezer_save {
505	my ($filename, $rdata, $objs) = @_;	882	my ($filename, $rdata, $objs) = @_;
506		883
		884	sync_job {
507	if (length $$rdata) {	885	if (length $$rdata) {
508	warn sprintf "saving %s (%d,%d)\n",	886	warn sprintf "saving %s (%d,%d)\n",
509	$filename, length $$rdata, scalar @$objs;	887	$filename, length $$rdata, scalar @$objs;
510		888
511	if (open my $fh, ">:raw", "$filename~") {	889	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, $$rdata;
514	close $fh;
515
516	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
517	chmod SAVE_MODE, $fh;	890	chmod SAVE_MODE, $fh;
518	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	891	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		892	aio_fsync $fh;
519	close $fh;	893	close $fh;
		894
		895	if (@$objs) {
		896	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		897	chmod SAVE_MODE, $fh;
		898	my $data = Storable::nfreeze { version => 1, objs => $objs };
		899	aio_write $fh, 0, (length $data), $data, 0;
		900	aio_fsync $fh;
		901	close $fh;
520	rename "$filename.pst~", "$filename.pst";	902	aio_rename "$filename.pst~", "$filename.pst";
		903	}
		904	} else {
		905	aio_unlink "$filename.pst";
		906	}
		907
		908	aio_rename "$filename~", $filename;
521	} else {	909	} else {
522	unlink "$filename.pst";	910	warn "FATAL: $filename~: $!\n";
523	}	911	}
524
525	rename "$filename~", $filename;
526	} else {	912	} else {
527	warn "FATAL: $filename~: $!\n";
528	}
529	} else {
530	unlink $filename;	913	aio_unlink $filename;
531	unlink "$filename.pst";	914	aio_unlink "$filename.pst";
		915	}
532	}	916	}
533	}	917	}
534		918
535	sub object_freezer_as_string {	919	sub object_freezer_as_string {
536	my ($rdata, $objs) = @_;	920	my ($rdata, $objs) = @_;
…		…
541	}	925	}
542		926
543	sub object_thawer_load {	927	sub object_thawer_load {
544	my ($filename) = @_;	928	my ($filename) = @_;
545		929
546	local $/;	930	my ($data, $av);
547		931
548	my $av;	932	(aio_load $filename, $data) >= 0
		933	or return;
549		934
550	#TODO: use sysread etc.	935	unless (aio_stat "$filename.pst") {
551	if (open my $data, "<:raw:perlio", $filename) {	936	(aio_load "$filename.pst", $av) >= 0
552	$data = <$data>;	937	or return;
553	if (open my $pst, "<:raw:perlio", "$filename.pst") {
554	$av = eval { (Storable::thaw <$pst>)->{objs} };	938	$av = eval { (Storable::thaw $av)->{objs} };
555	}	939	}
		940
		941	warn sprintf "loading %s (%d)\n",
		942	$filename, length $data, scalar @{$av || []};#d#
556	return ($data, $av);	943	return ($data, $av);
557	}
558
559	()
560	}	944	}
561		945
562	#############################################################################	946	#############################################################################
563	# command handling &c	947	# command handling &c
564		948
…		…
588	=cut	972	=cut
589		973
590	sub register_extcmd {	974	sub register_extcmd {
591	my ($name, $cb) = @_;	975	my ($name, $cb) = @_;
592		976
593	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";
595
596	$EXTCMD{$name} = [$cb, $caller];	977	$EXTCMD{$name} = $cb;
597	}	978	}
598		979
599	cf::player->attach (	980	cf::player->attach (
600	on_command => sub {	981	on_command => sub {
601	my ($pl, $name, $params) = @_;	982	my ($pl, $name, $params) = @_;
…		…
614		995
615	my $msg = eval { from_json $buf };	996	my $msg = eval { from_json $buf };
616		997
617	if (ref $msg) {	998	if (ref $msg) {
618	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	999	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
619	if (my %reply = $cb->[0]->($pl, $msg)) {	1000	if (my %reply = $cb->($pl, $msg)) {
620	$pl->ext_reply ($msg->{msgid}, %reply);	1001	$pl->ext_reply ($msg->{msgid}, %reply);
621	}	1002	}
622	}	1003	}
623	} else {	1004	} else {
624	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1005	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
626		1007
627	cf::override;	1008	cf::override;
628	},	1009	},
629	);	1010	);
630		1011
631	sub register {
632	my ($base, $pkg) = @_;
633
634	#TODO
635	}
636
637	sub load_extension {	1012	sub load_extension {
638	my ($path) = @_;	1013	my ($path) = @_;
639		1014
640	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1015	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
641	my $base = $1;	1016	my $base = $1;
642	my $pkg = $1;	1017	my $pkg = $1;
643	$pkg =~ s/[^[:word:]]/_/g;	1018	$pkg =~ s/[^[:word:]]/_/g;
644	$pkg = "ext::$pkg";	1019	$pkg = "ext::$pkg";
645		1020
646	warn "loading '$path' into '$pkg'\n";	1021	warn "... loading '$path' into '$pkg'\n";
647		1022
648	open my $fh, "<:utf8", $path	1023	open my $fh, "<:utf8", $path
649	or die "$path: $!";	1024	or die "$path: $!";
650		1025
651	my $source =	1026	my $source =
…		…
656		1031
657	eval $source	1032	eval $source
658	or die $@ ? "$path: $@\n"	1033	or die $@ ? "$path: $@\n"
659	: "extension disabled.\n";	1034	: "extension disabled.\n";
660		1035
661	push @exts, $pkg;	1036	push @EXTS, $pkg;
662	$ext_pkg{$base} = $pkg;
663
664	# no strict 'refs';
665	# @{"$pkg\::ISA"} = ext::;
666
667	register $base, $pkg;
668	}
669
670	sub unload_extension {
671	my ($pkg) = @_;
672
673	warn "removing extension $pkg\n";
674
675	# remove hooks
676	#TODO
677	# for my $idx (0 .. $#PLUGIN_EVENT) {
678	# delete $hook[$idx]{$pkg};
679	# }
680
681	# remove commands
682	for my $name (keys %COMMAND) {
683	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
684
685	if (@cb) {
686	$COMMAND{$name} = \@cb;
687	} else {
688	delete $COMMAND{$name};
689	}
690	}
691
692	# remove extcmds
693	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
694	delete $EXTCMD{$name};
695	}
696
697	if (my $cb = $pkg->can ("unload")) {
698	eval {
699	$cb->($pkg);
700	1
701	} or warn "$pkg unloaded, but with errors: $@";
702	}
703
704	Symbol::delete_package $pkg;
705	}	1037	}
706		1038
707	sub load_extensions {	1039	sub load_extensions {
708	for my $ext (<$LIBDIR/*.ext>) {	1040	for my $ext (<$LIBDIR/*.ext>) {
709	next unless -r $ext;	1041	next unless -r $ext;
…		…
727	};	1059	};
728		1060
729	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1061	cf::map->attach (prio => -10000, package => cf::mapsupport::);
730		1062
731	#############################################################################	1063	#############################################################################
732	# load/save perl data associated with player->ob objects
733
734	sub all_objects(@) {
735	@_, map all_objects ($_->inv), @_
736	}
737
738	# TODO: compatibility cruft, remove when no longer needed
739	cf::player->attach (
740	on_load => sub {
741	my ($pl, $path) = @_;
742
743	for my $o (all_objects $pl->ob) {
744	if (my $value = $o->get_ob_key_value ("_perl_data")) {
745	$o->set_ob_key_value ("_perl_data");
746
747	%$o = %{ Storable::thaw pack "H*", $value };
748	}
749	}
750	},
751	);
752
753	#############################################################################
754		1064
755	=head2 CORE EXTENSIONS	1065	=head2 CORE EXTENSIONS
756		1066
757	Functions and methods that extend core crossfire objects.	1067	Functions and methods that extend core crossfire objects.
758		1068
		1069	=cut
		1070
		1071	package cf::player;
		1072
		1073	use Coro::AIO;
		1074
759	=head3 cf::player	1075	=head3 cf::player
760		1076
761	=over 4	1077	=over 4
762		1078
763	=item cf::player::exists $login	1079	=item cf::player::find $login
764		1080
765	Returns true when the given account exists.	1081	Returns the given player object, loading it if necessary (might block).
766		1082
767	=cut	1083	=cut
768		1084
769	sub cf::player::exists($) {	1085	sub playerdir($) {
770	cf::player::find $_[0]	1086	cf::localdir
771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1087	. "/"
		1088	. cf::playerdir
		1089	. "/"
		1090	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1091	}
		1092
		1093	sub path($) {
		1094	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1095
		1096	(playerdir $login) . "/$login.pl"
		1097	}
		1098
		1099	sub find_active($) {
		1100	$cf::PLAYER{$_[0]}
		1101	and $cf::PLAYER{$_[0]}->active
		1102	and $cf::PLAYER{$_[0]}
		1103	}
		1104
		1105	sub exists($) {
		1106	my ($login) = @_;
		1107
		1108	$cf::PLAYER{$login}
		1109	or cf::sync_job { !aio_stat $login }
		1110	}
		1111
		1112	sub find($) {
		1113	return $cf::PLAYER{$_[0]} || do {
		1114	my $login = $_[0];
		1115
		1116	my $guard = cf::lock_acquire "user_find:$login";
		1117
		1118	$cf::PLAYER{$_[0]} || do {
		1119	my $pl = load_pl path $login
		1120	or return;
		1121	$cf::PLAYER{$login} = $pl
		1122	}
		1123	}
		1124	}
		1125
		1126	sub save($) {
		1127	my ($pl) = @_;
		1128
		1129	return if $pl->{deny_save};
		1130
		1131	my $path = path $pl;
		1132	my $guard = cf::lock_acquire "user_save:$path";
		1133
		1134	return if $pl->{deny_save};
		1135
		1136	aio_mkdir playerdir $pl, 0770;
		1137	$pl->{last_save} = $cf::RUNTIME;
		1138
		1139	$pl->save_pl ($path);
		1140	Coro::cede;
		1141	}
		1142
		1143	sub new($) {
		1144	my ($login) = @_;
		1145
		1146	my $self = create;
		1147
		1148	$self->ob->name ($login);
		1149	$self->{deny_save} = 1;
		1150
		1151	$cf::PLAYER{$login} = $self;
		1152
		1153	$self
		1154	}
		1155
		1156	=item $pl->quit_character
		1157
		1158	Nukes the player without looking back. If logged in, the connection will
		1159	be destroyed. May block for a long time.
		1160
		1161	=cut
		1162
		1163	sub quit_character {
		1164	my ($pl) = @_;
		1165
		1166	$pl->{deny_save} = 1;
		1167	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1168
		1169	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1170	$pl->deactivate;
		1171	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1172	$pl->ns->destroy if $pl->ns;
		1173
		1174	my $path = playerdir $pl;
		1175	my $temp = "$path~$cf::RUNTIME~deleting~";
		1176	aio_rename $path, $temp;
		1177	delete $cf::PLAYER{$pl->ob->name};
		1178	$pl->destroy;
		1179	IO::AIO::aio_rmtree $temp;
		1180	}
		1181
		1182	=item cf::player::list_logins
		1183
		1184	Returns am arrayref of all valid playernames in the system, can take a
		1185	while and may block, so not sync_job-capable, ever.
		1186
		1187	=cut
		1188
		1189	sub list_logins {
		1190	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1191	or return [];
		1192
		1193	my @logins;
		1194
		1195	for my $login (@$dirs) {
		1196	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1197	aio_read $fh, 0, 512, my $buf, 0 or next;
		1198	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1199
		1200	utf8::decode $login;
		1201	push @logins, $login;
		1202	}
		1203
		1204	\@logins
		1205	}
		1206
		1207	=item $player->maps
		1208
		1209	Returns an arrayref of cf::path's of all maps that are private for this
		1210	player. May block.
		1211
		1212	=cut
		1213
		1214	sub maps($) {
		1215	my ($pl) = @_;
		1216
		1217	my $files = aio_readdir playerdir $pl
		1218	or return;
		1219
		1220	my @paths;
		1221
		1222	for (@$files) {
		1223	utf8::decode $_;
		1224	next if /\.(?:pl|pst)$/;
		1225	next unless /^$PATH_SEP/o;
		1226
		1227	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
		1228	}
		1229
		1230	\@paths
772	}	1231	}
773		1232
774	=item $player->ext_reply ($msgid, $msgtype, %msg)	1233	=item $player->ext_reply ($msgid, $msgtype, %msg)
775		1234
776	Sends an ext reply to the player.	1235	Sends an ext reply to the player.
777		1236
778	=cut	1237	=cut
779		1238
780	sub cf::player::ext_reply($$$%) {	1239	sub ext_reply($$$%) {
781	my ($self, $id, %msg) = @_;	1240	my ($self, $id, %msg) = @_;
782		1241
783	$msg{msgid} = $id;	1242	$msg{msgid} = $id;
784		1243
785	$self->send ("ext " . to_json \%msg);	1244	$self->send ("ext " . cf::to_json \%msg);
786	}	1245	}
		1246
		1247	package cf;
		1248
		1249	=back
		1250
		1251
		1252	=head3 cf::map
		1253
		1254	=over 4
		1255
		1256	=cut
		1257
		1258	package cf::map;
		1259
		1260	use Fcntl;
		1261	use Coro::AIO;
		1262
		1263	our $MAX_RESET = 3600;
		1264	our $DEFAULT_RESET = 3000;
		1265
		1266	sub generate_random_map {
		1267	my ($path, $rmp) = @_;
		1268
		1269	# mit "rum" bekleckern, nicht
		1270	cf::map::_create_random_map
		1271	$path,
		1272	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1273	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1274	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1275	$rmp->{exit_on_final_map},
		1276	$rmp->{xsize}, $rmp->{ysize},
		1277	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1278	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1279	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1280	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1281	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1282	(cf::region::find $rmp->{region})
		1283	}
		1284
		1285	# and all this just because we cannot iterate over
		1286	# all maps in C++...
		1287	sub change_all_map_light {
		1288	my ($change) = @_;
		1289
		1290	$_->change_map_light ($change)
		1291	for grep $_->outdoor, values %cf::MAP;
		1292	}
		1293
		1294	sub load_map_header($) {
		1295	my ($path) = @_;
		1296
		1297	utf8::encode $path;
		1298	aio_open $path, O_RDONLY, 0
		1299	or return;
		1300
		1301	my $map = cf::map::new
		1302	or return;
		1303
		1304	# for better error messages only, will be overwritten later
		1305	$map->path ($path);
		1306
		1307	$map->load_header ($path)
		1308	or return;
		1309
		1310	$map->{load_path} = $path;
		1311
		1312	$map
		1313	}
		1314
		1315	sub find;
		1316	sub find {
		1317	my ($path, $origin) = @_;
		1318
		1319	#warn "find<$path,$origin>\n";#d#
		1320
		1321	$path = new cf::path $path, $origin && $origin->path;
		1322	my $key = $path->as_string;
		1323
		1324	cf::lock_wait "map_find:$key";
		1325
		1326	$cf::MAP{$key} || do {
		1327	my $guard = cf::lock_acquire "map_find:$key";
		1328
		1329	# do it the slow way
		1330	my $map = $path->load_temp;
		1331
		1332	Coro::cede;
		1333
		1334	if ($map) {
		1335	$map->last_access ((delete $map->{last_access})
		1336	|| $cf::RUNTIME); #d#
		1337	# safety
		1338	$map->{instantiate_time} = $cf::RUNTIME
		1339	if $map->{instantiate_time} > $cf::RUNTIME;
		1340	} else {
		1341	$map = $path->load_orig
		1342	or return;
		1343
		1344	$map->{load_original} = 1;
		1345	$map->{instantiate_time} = $cf::RUNTIME;
		1346	$map->last_access ($cf::RUNTIME);
		1347	$map->instantiate;
		1348
		1349	# per-player maps become, after loading, normal maps
		1350	$map->per_player (0) if $path->{user_rel};
		1351	}
		1352
		1353	$map->path ($key);
		1354	$map->{path} = $path;
		1355	$map->{last_save} = $cf::RUNTIME;
		1356
		1357	Coro::cede;
		1358
		1359	if ($map->should_reset) {
		1360	$map->reset;
		1361	undef $guard;
		1362	$map = find $path
		1363	or return;
		1364	}
		1365
		1366	$cf::MAP{$key} = $map
		1367	}
		1368	}
		1369
		1370	sub load {
		1371	my ($self) = @_;
		1372
		1373	my $path = $self->{path};
		1374	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1375
		1376	return if $self->in_memory != cf::MAP_SWAPPED;
		1377
		1378	$self->in_memory (cf::MAP_LOADING);
		1379
		1380	$self->alloc;
		1381	$self->load_objects ($self->{load_path}, 1)
		1382	or return;
		1383
		1384	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1385	if delete $self->{load_original};
		1386
		1387	if (my $uniq = $path->uniq_path) {
		1388	utf8::encode $uniq;
		1389	if (aio_open $uniq, O_RDONLY, 0) {
		1390	$self->clear_unique_items;
		1391	$self->load_objects ($uniq, 0);
		1392	}
		1393	}
		1394
		1395	Coro::cede;
		1396
		1397	# now do the right thing for maps
		1398	$self->link_multipart_objects;
		1399
		1400	if ($self->{path}->is_style_map) {
		1401	$self->{deny_save} = 1;
		1402	$self->{deny_reset} = 1;
		1403	} else {
		1404	$self->fix_auto_apply;
		1405	$self->decay_objects;
		1406	$self->update_buttons;
		1407	$self->set_darkness_map;
		1408	$self->difficulty ($self->estimate_difficulty)
		1409	unless $self->difficulty;
		1410	$self->activate;
		1411	}
		1412
		1413	Coro::cede;
		1414
		1415	$self->in_memory (cf::MAP_IN_MEMORY);
		1416	}
		1417
		1418	# find and load all maps in the 3x3 area around a map
		1419	sub load_diag {
		1420	my ($map) = @_;
		1421
		1422	my @diag; # diagonal neighbours
		1423
		1424	for (0 .. 3) {
		1425	my $neigh = $map->tile_path ($_)
		1426	or next;
		1427	$neigh = find $neigh, $map
		1428	or next;
		1429	$neigh->load;
		1430
		1431	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1432	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1433	}
		1434
		1435	for (@diag) {
		1436	my $neigh = find @$_
		1437	or next;
		1438	$neigh->load;
		1439	}
		1440	}
		1441
		1442	sub find_sync {
		1443	my ($path, $origin) = @_;
		1444
		1445	cf::sync_job { find $path, $origin }
		1446	}
		1447
		1448	sub do_load_sync {
		1449	my ($map) = @_;
		1450
		1451	cf::sync_job { $map->load };
		1452	}
		1453
		1454	our %MAP_PREFETCH;
		1455	our $MAP_PREFETCHER = Coro::async {
		1456	while () {
		1457	while (%MAP_PREFETCH) {
		1458	my $key = each %MAP_PREFETCH
		1459	or next;
		1460	my $path = delete $MAP_PREFETCH{$key};
		1461
		1462	my $map = find $path
		1463	or next;
		1464	$map->load;
		1465	}
		1466	Coro::schedule;
		1467	}
		1468	};
		1469
		1470	sub find_async {
		1471	my ($path, $origin) = @_;
		1472
		1473	$path = new cf::path $path, $origin && $origin->path;
		1474	my $key = $path->as_string;
		1475
		1476	if (my $map = $cf::MAP{$key}) {
		1477	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1478	}
		1479
		1480	$MAP_PREFETCH{$key} = $path;
		1481	$MAP_PREFETCHER->ready;
		1482
		1483	()
		1484	}
		1485
		1486	sub save {
		1487	my ($self) = @_;
		1488
		1489	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1490
		1491	$self->{last_save} = $cf::RUNTIME;
		1492
		1493	return unless $self->dirty;
		1494
		1495	my $save = $self->{path}->save_path; utf8::encode $save;
		1496	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1497
		1498	$self->{load_path} = $save;
		1499
		1500	return if $self->{deny_save};
		1501
		1502	local $self->{last_access} = $self->last_access;#d#
		1503
		1504	cf::async {
		1505	$_->contr->save for $self->players;
		1506	};
		1507
		1508	if ($uniq) {
		1509	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1510	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1511	} else {
		1512	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1513	}
		1514	}
		1515
		1516	sub swap_out {
		1517	my ($self) = @_;
		1518
		1519	# save first because save cedes
		1520	$self->save;
		1521
		1522	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1523
		1524	return if $self->players;
		1525	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1526	return if $self->{deny_save};
		1527
		1528	$self->clear;
		1529	$self->in_memory (cf::MAP_SWAPPED);
		1530	}
		1531
		1532	sub reset_at {
		1533	my ($self) = @_;
		1534
		1535	# TODO: safety, remove and allow resettable per-player maps
		1536	return 1e99 if $self->{path}{user_rel};
		1537	return 1e99 if $self->{deny_reset};
		1538
		1539	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1540	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1541
		1542	$time + $to
		1543	}
		1544
		1545	sub should_reset {
		1546	my ($self) = @_;
		1547
		1548	$self->reset_at <= $cf::RUNTIME
		1549	}
		1550
		1551	sub unlink_save {
		1552	my ($self) = @_;
		1553
		1554	utf8::encode (my $save = $self->{path}->save_path);
		1555	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1556	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1557	}
		1558
		1559	sub rename {
		1560	my ($self, $new_path) = @_;
		1561
		1562	$self->unlink_save;
		1563
		1564	delete $cf::MAP{$self->path};
		1565	$self->{path} = new cf::path $new_path;
		1566	$self->path ($self->{path}->as_string);
		1567	$cf::MAP{$self->path} = $self;
		1568
		1569	$self->save;
		1570	}
		1571
		1572	sub reset {
		1573	my ($self) = @_;
		1574
		1575	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1576
		1577	return if $self->players;
		1578	return if $self->{path}{user_rel};#d#
		1579
		1580	warn "resetting map ", $self->path;#d#
		1581
		1582	delete $cf::MAP{$self->path};
		1583
		1584	$_->clear_links_to ($self) for values %cf::MAP;
		1585
		1586	$self->unlink_save;
		1587	$self->destroy;
		1588	}
		1589
		1590	my $nuke_counter = "aaaa";
		1591
		1592	sub nuke {
		1593	my ($self) = @_;
		1594
		1595	$self->{deny_save} = 1;
		1596	$self->reset_timeout (1);
		1597	$self->rename ("{nuke}/" . ($nuke_counter++));
		1598	$self->reset; # polite request, might not happen
		1599	}
		1600
		1601	sub customise_for {
		1602	my ($map, $ob) = @_;
		1603
		1604	if ($map->per_player) {
		1605	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1606	}
		1607
		1608	$map
		1609	}
		1610
		1611	=item cf::map::unique_maps
		1612
		1613	Returns an arrayref of cf::path's of all shared maps that have
		1614	instantiated unique items. May block.
		1615
		1616	=cut
		1617
		1618	sub unique_maps() {
		1619	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1620	or return;
		1621
		1622	my @paths;
		1623
		1624	for (@$files) {
		1625	utf8::decode $_;
		1626	next if /\.pst$/;
		1627	next unless /^$PATH_SEP/o;
		1628
		1629	push @paths, new cf::path $_;
		1630	}
		1631
		1632	\@paths
		1633	}
		1634
		1635	package cf;
		1636
		1637	=back
		1638
		1639	=head3 cf::object
		1640
		1641	=cut
		1642
		1643	package cf::object;
		1644
		1645	=over 4
		1646
		1647	=item $ob->inv_recursive
		1648
		1649	Returns the inventory of the object _and_ their inventories, recursively.
		1650
		1651	=cut
		1652
		1653	sub inv_recursive_;
		1654	sub inv_recursive_ {
		1655	map { $_, inv_recursive_ $_->inv } @_
		1656	}
		1657
		1658	sub inv_recursive {
		1659	inv_recursive_ inv $_[0]
		1660	}
		1661
		1662	package cf;
787		1663
788	=back	1664	=back
789		1665
790	=head3 cf::object::player	1666	=head3 cf::object::player
791		1667
…		…
829	(ref $cf::CFG{"may_$access"}	1705	(ref $cf::CFG{"may_$access"}
830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1706	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
831	: $cf::CFG{"may_$access"})	1707	: $cf::CFG{"may_$access"})
832	}	1708	}
833		1709
		1710	=item $player_object->enter_link
		1711
		1712	Freezes the player and moves him/her to a special map (C<{link}>).
		1713
		1714	The player should be reaosnably safe there for short amounts of time. You
		1715	I<MUST> call C<leave_link> as soon as possible, though.
		1716
		1717	=item $player_object->leave_link ($map, $x, $y)
		1718
		1719	Moves the player out of the specila link map onto the given map. If the
		1720	map is not valid (or omitted), the player will be moved back to the
		1721	location he/she was before the call to C<enter_link>, or, if that fails,
		1722	to the emergency map position.
		1723
		1724	Might block.
		1725
		1726	=cut
		1727
		1728	sub cf::object::player::enter_link {
		1729	my ($self) = @_;
		1730
		1731	$self->deactivate_recursive;
		1732
		1733	return if $self->map == $LINK_MAP;
		1734
		1735	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1736	if $self->map;
		1737
		1738	$self->enter_map ($LINK_MAP, 20, 20);
		1739	}
		1740
		1741	sub cf::object::player::leave_link {
		1742	my ($self, $map, $x, $y) = @_;
		1743
		1744	my $link_pos = delete $self->{_link_pos};
		1745
		1746	unless ($map) {
		1747	# restore original map position
		1748	($map, $x, $y) = @{ $link_pos || [] };
		1749	$map = cf::map::find $map;
		1750
		1751	unless ($map) {
		1752	($map, $x, $y) = @$EMERGENCY_POSITION;
		1753	$map = cf::map::find $map
		1754	or die "FATAL: cannot load emergency map\n";
		1755	}
		1756	}
		1757
		1758	($x, $y) = (-1, -1)
		1759	unless (defined $x) && (defined $y);
		1760
		1761	# use -1 or undef as default coordinates, not 0, 0
		1762	($x, $y) = ($map->enter_x, $map->enter_y)
		1763	if $x <=0 && $y <= 0;
		1764
		1765	$map->load;
		1766	$map->load_diag;
		1767
		1768	return unless $self->contr->active;
		1769	$self->activate_recursive;
		1770	$self->enter_map ($map, $x, $y);
		1771	}
		1772
		1773	cf::player->attach (
		1774	on_logout => sub {
		1775	my ($pl) = @_;
		1776
		1777	# abort map switching before logout
		1778	if ($pl->ob->{_link_pos}) {
		1779	cf::sync_job {
		1780	$pl->ob->leave_link
		1781	};
		1782	}
		1783	},
		1784	on_login => sub {
		1785	my ($pl) = @_;
		1786
		1787	# try to abort aborted map switching on player login :)
		1788	# should happen only on crashes
		1789	if ($pl->ob->{_link_pos}) {
		1790	$pl->ob->enter_link;
		1791	(async {
		1792	# we need this sleep as the login has a concurrent enter_exit running
		1793	# and this sleep increases chances of the player not ending up in scorn
		1794	$pl->ob->reply (undef,
		1795	"There was an internal problem at your last logout, "
		1796	. "the server will try to bring you to your intended destination in a second.",
		1797	cf::NDI_RED);
		1798	Coro::Timer::sleep 1;
		1799	$pl->ob->leave_link;
		1800	})->prio (2);
		1801	}
		1802	},
		1803	);
		1804
		1805	=item $player_object->goto ($path, $x, $y)
		1806
		1807	=cut
		1808
		1809	sub cf::object::player::goto {
		1810	my ($self, $path, $x, $y) = @_;
		1811
		1812	$path = new cf::path $path;
		1813
		1814	$self->enter_link;
		1815
		1816	(async {
		1817	my $map = cf::map::find $path->as_string;
		1818	$map = $map->customise_for ($self) if $map;
		1819
		1820	# warn "entering ", $map->path, " at ($x, $y)\n"
		1821	# if $map;
		1822
		1823	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1824
		1825	$self->leave_link ($map, $x, $y);
		1826	})->prio (1);
		1827	}
		1828
		1829	=item $player_object->enter_exit ($exit_object)
		1830
		1831	=cut
		1832
		1833	sub parse_random_map_params {
		1834	my ($spec) = @_;
		1835
		1836	my $rmp = { # defaults
		1837	xsize => 10,
		1838	ysize => 10,
		1839	};
		1840
		1841	for (split /\n/, $spec) {
		1842	my ($k, $v) = split /\s+/, $_, 2;
		1843
		1844	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1845	}
		1846
		1847	$rmp
		1848	}
		1849
		1850	sub prepare_random_map {
		1851	my ($exit) = @_;
		1852
		1853	# all this does is basically replace the /! path by
		1854	# a new random map path (?random/...) with a seed
		1855	# that depends on the exit object
		1856
		1857	my $rmp = parse_random_map_params $exit->msg;
		1858
		1859	if ($exit->map) {
		1860	$rmp->{region} = $exit->map->region_name;
		1861	$rmp->{origin_map} = $exit->map->path;
		1862	$rmp->{origin_x} = $exit->x;
		1863	$rmp->{origin_y} = $exit->y;
		1864	}
		1865
		1866	$rmp->{random_seed} ||= $exit->random_seed;
		1867
		1868	my $data = cf::to_json $rmp;
		1869	my $md5 = Digest::MD5::md5_hex $data;
		1870
		1871	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1872	aio_write $fh, 0, (length $data), $data, 0;
		1873
		1874	$exit->slaying ("?random/$md5");
		1875	$exit->msg (undef);
		1876	}
		1877	}
		1878
		1879	sub cf::object::player::enter_exit {
		1880	my ($self, $exit) = @_;
		1881
		1882	return unless $self->type == cf::PLAYER;
		1883
		1884	$self->enter_link;
		1885
		1886	(async {
		1887	$self->deactivate_recursive; # just to be sure
		1888	unless (eval {
		1889	prepare_random_map $exit
		1890	if $exit->slaying eq "/!";
		1891
		1892	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1893	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1894
		1895	1;
		1896	}) {
		1897	$self->message ("Something went wrong deep within the crossfire server. "
		1898	. "I'll try to bring you back to the map you were before. "
		1899	. "Please report this to the dungeon master!",
		1900	cf::NDI_UNIQUE | cf::NDI_RED);
		1901
		1902	warn "ERROR in enter_exit: $@";
		1903	$self->leave_link;
		1904	}
		1905	})->prio (1);
		1906	}
		1907
834	=head3 cf::client	1908	=head3 cf::client
835		1909
836	=over 4	1910	=over 4
837		1911
838	=item $client->send_drawinfo ($text, $flags)	1912	=item $client->send_drawinfo ($text, $flags)
…		…
881	on_reply => sub {	1955	on_reply => sub {
882	my ($ns, $msg) = @_;	1956	my ($ns, $msg) = @_;
883		1957
884	# this weird shuffling is so that direct followup queries	1958	# this weird shuffling is so that direct followup queries
885	# get handled first	1959	# get handled first
886	my $queue = delete $ns->{query_queue};	1960	my $queue = delete $ns->{query_queue}
		1961	or return; # be conservative, not sure how that can happen, but we saw a crash here
887		1962
888	(shift @$queue)->[1]->($msg);	1963	(shift @$queue)->[1]->($msg);
889		1964
890	push @{ $ns->{query_queue} }, @$queue;	1965	push @{ $ns->{query_queue} }, @$queue;
891		1966
…		…
897	}	1972	}
898	}	1973	}
899	},	1974	},
900	);	1975	);
901		1976
902	=item $client->coro (\&cb)	1977	=item $client->async (\&cb)
903		1978
904	Create a new coroutine, running the specified callback. The coroutine will	1979	Create a new coroutine, running the specified callback. The coroutine will
905	be automatically cancelled when the client gets destroyed (e.g. on logout,	1980	be automatically cancelled when the client gets destroyed (e.g. on logout,
906	or loss of connection).	1981	or loss of connection).
907		1982
908	=cut	1983	=cut
909		1984
910	sub cf::client::coro {	1985	sub cf::client::async {
911	my ($self, $cb) = @_;	1986	my ($self, $cb) = @_;
912		1987
913	my $coro; $coro = async {	1988	my $coro = &Coro::async ($cb);
914	eval {	1989
915	$cb->();	1990	$coro->on_destroy (sub {
916	};
917	warn $@ if $@;
918	delete $self->{_coro}{$coro+0};	1991	delete $self->{_coro}{$coro+0};
919	};	1992	});
920		1993
921	$self->{_coro}{$coro+0} = $coro;	1994	$self->{_coro}{$coro+0} = $coro;
		1995
		1996	$coro
922	}	1997	}
923		1998
924	cf::client->attach (	1999	cf::client->attach (
925	on_destroy => sub {	2000	on_destroy => sub {
926	my ($ns) = @_;	2001	my ($ns) = @_;
…		…
1090		2165
1091	{	2166	{
1092	my $path = cf::localdir . "/database.pst";	2167	my $path = cf::localdir . "/database.pst";
1093		2168
1094	sub db_load() {	2169	sub db_load() {
1095	warn "loading database $path\n";#d# remove later
1096	$DB = stat $path ? Storable::retrieve $path : { };	2170	$DB = stat $path ? Storable::retrieve $path : { };
1097	}	2171	}
1098		2172
1099	my $pid;	2173	my $pid;
1100		2174
1101	sub db_save() {	2175	sub db_save() {
1102	warn "saving database $path\n";#d# remove later
1103	waitpid $pid, 0 if $pid;	2176	waitpid $pid, 0 if $pid;
1104	if (0 == ($pid = fork)) {	2177	if (0 == ($pid = fork)) {
1105	$DB->{_meta}{version} = 1;	2178	$DB->{_meta}{version} = 1;
1106	Storable::nstore $DB, "$path~";	2179	Storable::nstore $DB, "$path~";
1107	rename "$path~", $path;	2180	rename "$path~", $path;
…		…
1155	open my $fh, "<:utf8", cf::confdir . "/config"	2228	open my $fh, "<:utf8", cf::confdir . "/config"
1156	or return;	2229	or return;
1157		2230
1158	local $/;	2231	local $/;
1159	*CFG = YAML::Syck::Load <$fh>;	2232	*CFG = YAML::Syck::Load <$fh>;
		2233
		2234	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2235
		2236	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2237	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2238
		2239	if (exists $CFG{mlockall}) {
		2240	eval {
		2241	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2242	and die "WARNING: m(un)lockall failed: $!\n";
		2243	};
		2244	warn $@ if $@;
		2245	}
1160	}	2246	}
1161		2247
1162	sub main {	2248	sub main {
		2249	# we must not ever block the main coroutine
		2250	local $Coro::idle = sub {
		2251	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2252	async { Event::one_event };
		2253	};
		2254
1163	cfg_load;	2255	cfg_load;
1164	db_load;	2256	db_load;
1165	load_extensions;	2257	load_extensions;
1166	Event::loop;	2258	Event::loop;
1167	}	2259	}
1168		2260
1169	#############################################################################	2261	#############################################################################
1170	# initialisation	2262	# initialisation and cleanup
1171		2263
		2264	# install some emergency cleanup handlers
		2265	BEGIN {
		2266	for my $signal (qw(INT HUP TERM)) {
		2267	Event->signal (
		2268	data => WF_AUTOCANCEL,
		2269	signal => $signal,
		2270	cb => sub {
		2271	cf::cleanup "SIG$signal";
		2272	},
		2273	);
		2274	}
		2275	}
		2276
		2277	sub emergency_save() {
		2278	my $freeze_guard = cf::freeze_mainloop;
		2279
		2280	warn "enter emergency perl save\n";
		2281
		2282	cf::sync_job {
		2283	# use a peculiar iteration method to avoid tripping on perl
		2284	# refcount bugs in for. also avoids problems with players
		2285	# and maps saved/Destroyed asynchronously.
		2286	warn "begin emergency player save\n";
		2287	for my $login (keys %cf::PLAYER) {
		2288	my $pl = $cf::PLAYER{$login} or next;
		2289	$pl->valid or next;
		2290	$pl->save;
		2291	}
		2292	warn "end emergency player save\n";
		2293
		2294	warn "begin emergency map save\n";
		2295	for my $path (keys %cf::MAP) {
		2296	my $map = $cf::MAP{$path} or next;
		2297	$map->valid or next;
		2298	$map->save;
		2299	}
		2300	warn "end emergency map save\n";
		2301	};
		2302
		2303	warn "leave emergency perl save\n";
		2304	}
		2305
1172	sub _perl_reload(&) {	2306	sub reload() {
1173	my ($msg) = @_;	2307	# can/must only be called in main
		2308	if ($Coro::current != $Coro::main) {
		2309	warn "can only reload from main coroutine\n";
		2310	return;
		2311	}
1174		2312
1175	$msg->("reloading...");	2313	warn "reloading...";
		2314
		2315	warn "freezing server";
		2316	my $guard = freeze_mainloop;
		2317	cf::emergency_save;
		2318
		2319	warn "sync database to disk";
		2320	cf::db_sync;
		2321	IO::AIO::flush;
1176		2322
1177	eval {	2323	eval {
		2324	# if anything goes wrong in here, we should simply crash as we already saved
		2325
1178	# cancel all watchers	2326	warn "cancel all watchers";
1179	for (Event::all_watchers) {	2327	for (Event::all_watchers) {
1180	$_->cancel if $_->data & WF_AUTOCANCEL;	2328	$_->cancel if $_->data & WF_AUTOCANCEL;
1181	}	2329	}
1182		2330
		2331	warn "cancel all extension coros";
		2332	$_->cancel for values %EXT_CORO;
		2333	%EXT_CORO = ();
		2334
		2335	warn "remove commands";
		2336	%COMMAND = ();
		2337
		2338	warn "remove ext commands";
		2339	%EXTCMD = ();
		2340
1183	# unload all extensions	2341	warn "unload/nuke all extensions";
1184	for (@exts) {	2342	for my $pkg (@EXTS) {
1185	$msg->("unloading <$_>");	2343	warn "... unloading $pkg";
1186	unload_extension $_;	2344
		2345	if (my $cb = $pkg->can ("unload")) {
		2346	eval {
		2347	$cb->($pkg);
		2348	1
		2349	} or warn "$pkg unloaded, but with errors: $@";
1187	}	2350	}
1188		2351
		2352	warn "... nuking $pkg";
		2353	Symbol::delete_package $pkg;
		2354	}
		2355
1189	# unload all modules loaded from $LIBDIR	2356	warn "unload all perl modules loaded from $LIBDIR";
1190	while (my ($k, $v) = each %INC) {	2357	while (my ($k, $v) = each %INC) {
1191	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2358	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1192		2359
1193	$msg->("removing <$k>");	2360	warn "removing <$k>";
1194	delete $INC{$k};	2361	delete $INC{$k};
1195		2362
1196	$k =~ s/\.pm$//;	2363	$k =~ s/\.pm$//;
1197	$k =~ s/\//::/g;	2364	$k =~ s/\//::/g;
1198		2365
…		…
1201	}	2368	}
1202		2369
1203	Symbol::delete_package $k;	2370	Symbol::delete_package $k;
1204	}	2371	}
1205		2372
1206	# sync database to disk
1207	cf::db_sync;
1208
1209	# get rid of safe::, as good as possible	2373	warn "get rid of safe::, as good as possible";
1210	Symbol::delete_package "safe::$_"	2374	Symbol::delete_package "safe::$_"
1211	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2375	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1212		2376
1213	# remove register_script_function callbacks
1214	# TODO
1215
1216	# unload cf.pm "a bit"	2377	warn "unload cf.pm \"a bit\"";
1217	delete $INC{"cf.pm"};	2378	delete $INC{"cf.pm"};
1218		2379
1219	# don't, removes xs symbols, too,	2380	# don't, removes xs symbols, too,
1220	# and global variables created in xs	2381	# and global variables created in xs
1221	#Symbol::delete_package __PACKAGE__;	2382	#Symbol::delete_package __PACKAGE__;
1222		2383
1223	# reload cf.pm
1224	$msg->("reloading cf.pm");	2384	warn "reloading cf.pm";
1225	require cf;	2385	require cf;
1226	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2386	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1227		2387
1228
1229	# load config and database again	2388	warn "load config and database again";
1230	cf::cfg_load;	2389	cf::cfg_load;
1231	cf::db_load;	2390	cf::db_load;
1232		2391
1233	# load extensions	2392	warn "load extensions";
1234	$msg->("load extensions");
1235	cf::load_extensions;	2393	cf::load_extensions;
1236		2394
1237	# reattach attachments to objects	2395	warn "reattach attachments to objects/players";
1238	$msg->("reattach");
1239	_global_reattach;	2396	_global_reattach;
		2397	warn "reattach attachments to maps";
		2398	reattach $_ for values %MAP;
1240	};	2399	};
1241	$msg->($@) if $@;
1242		2400
1243	$msg->("reloaded");	2401	if ($@) {
		2402	warn $@;
		2403	warn "error while reloading, exiting.";
		2404	exit 1;
		2405	}
		2406
		2407	warn "reloaded";
1244	};	2408	};
1245		2409
1246	sub perl_reload() {	2410	#############################################################################
1247	_perl_reload {
1248	warn $_[0];
1249	print "$_[0]\n";
1250	};
1251	}
1252		2411
1253	register "<global>", __PACKAGE__;	2412	unless ($LINK_MAP) {
		2413	$LINK_MAP = cf::map::new;
1254		2414
		2415	$LINK_MAP->width (41);
		2416	$LINK_MAP->height (41);
		2417	$LINK_MAP->alloc;
		2418	$LINK_MAP->path ("{link}");
		2419	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2420	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2421
		2422	# dirty hack because... archetypes are not yet loaded
		2423	Event->timer (
		2424	after => 10,
		2425	cb => sub {
		2426	$_[0]->w->cancel;
		2427
		2428	# provide some exits "home"
		2429	my $exit = cf::object::new "exit";
		2430
		2431	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2432	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2433	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2434
		2435	$LINK_MAP->insert ($exit->clone, 19, 19);
		2436	$LINK_MAP->insert ($exit->clone, 19, 20);
		2437	$LINK_MAP->insert ($exit->clone, 19, 21);
		2438	$LINK_MAP->insert ($exit->clone, 20, 19);
		2439	$LINK_MAP->insert ($exit->clone, 20, 21);
		2440	$LINK_MAP->insert ($exit->clone, 21, 19);
		2441	$LINK_MAP->insert ($exit->clone, 21, 20);
		2442	$LINK_MAP->insert ($exit->clone, 21, 21);
		2443
		2444	$exit->destroy;
		2445	});
		2446
		2447	$LINK_MAP->{deny_save} = 1;
		2448	$LINK_MAP->{deny_reset} = 1;
		2449
		2450	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2451	}
		2452
1255	register_command "perl-reload" => sub {	2453	register_command "reload" => sub {
1256	my ($who, $arg) = @_;	2454	my ($who, $arg) = @_;
1257		2455
1258	if ($who->flag (FLAG_WIZ)) {	2456	if ($who->flag (FLAG_WIZ)) {
1259	_perl_reload {	2457	$who->message ("start of reload.");
1260	warn $_[0];	2458	reload;
1261	$who->message ($_[0]);	2459	$who->message ("end of reload.");
1262	};
1263	}	2460	}
1264	};	2461	};
1265		2462
1266	unshift @INC, $LIBDIR;	2463	unshift @INC, $LIBDIR;
1267		2464
1268	$TICK_WATCHER = Event->timer (	2465	$TICK_WATCHER = Event->timer (
		2466	reentrant => 0,
1269	prio => 0,	2467	prio => 0,
1270	at => $NEXT_TICK || 1,	2468	at => $NEXT_TICK || $TICK,
1271	data => WF_AUTOCANCEL,	2469	data => WF_AUTOCANCEL,
1272	cb => sub {	2470	cb => sub {
1273	cf::server_tick; # one server iteration	2471	cf::server_tick; # one server iteration
1274		2472	$RUNTIME += $TICK;
1275	my $NOW = Event::time;
1276	$NEXT_TICK += $TICK;	2473	$NEXT_TICK += $TICK;
1277		2474
		2475	$WAIT_FOR_TICK->broadcast;
		2476	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2477
1278	# if we are delayed by four ticks or more, skip them all	2478	# if we are delayed by four ticks or more, skip them all
1279	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2479	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1280		2480
1281	$TICK_WATCHER->at ($NEXT_TICK);	2481	$TICK_WATCHER->at ($NEXT_TICK);
1282	$TICK_WATCHER->start;	2482	$TICK_WATCHER->start;
1283	},	2483	},
1284	);	2484	);
1285		2485
1286	IO::AIO::max_poll_time $TICK * 0.2;	2486	IO::AIO::max_poll_time $TICK * 0.2;
1287		2487
		2488	Event->io (
1288	Event->io (fd => IO::AIO::poll_fileno,	2489	fd => IO::AIO::poll_fileno,
1289	poll => 'r',	2490	poll => 'r',
1290	prio => 5,	2491	prio => 5,
1291	data => WF_AUTOCANCEL,	2492	data => WF_AUTOCANCEL,
1292	cb => \&IO::AIO::poll_cb);	2493	cb => \&IO::AIO::poll_cb,
		2494	);
		2495
		2496	Event->timer (
		2497	data => WF_AUTOCANCEL,
		2498	after => 0,
		2499	interval => 10,
		2500	cb => sub {
		2501	(Coro::unblock_sub {
		2502	write_runtime
		2503	or warn "ERROR: unable to write runtime file: $!";
		2504	})->();
		2505	},
		2506	);
		2507
		2508	END { cf::emergency_save }
1293		2509
1294	1	2510	1
1295		2511

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