ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.94 by root, Thu Dec 21 23:02:54 2006 UTC vs.
Revision 1.144 by root, Sun Jan 7 18:01:10 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 Digest::MD5;
		21	use Fcntl;
10	use IO::AIO ();	22	use IO::AIO 2.31 ();
11	use YAML::Syck ();	23	use YAML::Syck ();
12	use Time::HiRes;	24	use Time::HiRes;
13	use Event;	25
14	$Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
15		27
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	29	$YAML::Syck::ImplicitUnicode = 1;
18		30
19	use strict;	31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
20		32
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		34
23	our %COMMAND = ();	35	our %COMMAND = ();
24	our %COMMAND_TIME = ();	36	our %COMMAND_TIME = ();
25	our %EXTCMD = ();	37	our %EXTCMD = ();
26		38
27	_init_vars;
28
29	our @EVENT;	39	our @EVENT;
30	our $LIBDIR = datadir . "/ext";	40	our $LIBDIR = datadir . "/ext";
31		41
32	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
33	our $TICK_WATCHER;	43	our $TICK_WATCHER;
34	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
35		46
36	our %CFG;	47	our %CFG;
37		48
38	our $UPTIME; $UPTIME ||= time;	49	our $UPTIME; $UPTIME ||= time;
		50	our $RUNTIME;
		51
		52	our %PLAYER; # all users
		53	our %MAP; # all maps
		54	our $LINK_MAP; # the special {link} map
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO; # coroutines bound to extensions
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		63	open my $fh, "<", cf::localdir . "/runtime"
		64	or die "unable to read runtime file: $!";
		65	$RUNTIME = <$fh> + 0.;
		66	}
		67
		68	mkdir cf::localdir;
		69	mkdir cf::localdir . "/" . cf::playerdir;
		70	mkdir cf::localdir . "/" . cf::tmpdir;
		71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
		73
		74	# a special map that is always available
		75	our $LINK_MAP;
		76	our $EMERGENCY_POSITION;
39		77
40	#############################################################################	78	#############################################################################
41		79
42	=head2 GLOBAL VARIABLES	80	=head2 GLOBAL VARIABLES
43		81
44	=over 4	82	=over 4
45		83
46	=item $cf::UPTIME	84	=item $cf::UPTIME
47		85
48	The timestamp of the server start (so not actually an uptime).	86	The timestamp of the server start (so not actually an uptime).
		87
		88	=item $cf::RUNTIME
		89
		90	The time this server has run, starts at 0 and is increased by $cf::TICK on
		91	every server tick.
49		92
50	=item $cf::LIBDIR	93	=item $cf::LIBDIR
51		94
52	The perl library directory, where extensions and cf-specific modules can	95	The perl library directory, where extensions and cf-specific modules can
53	be found. It will be added to C<@INC> automatically.	96	be found. It will be added to C<@INC> automatically.
		97
		98	=item $cf::NOW
		99
		100	The time of the last (current) server tick.
54		101
55	=item $cf::TICK	102	=item $cf::TICK
56		103
57	The interval between server ticks, in seconds.	104	The interval between server ticks, in seconds.
58		105
…		…
66	=cut	113	=cut
67		114
68	BEGIN {	115	BEGIN {
69	*CORE::GLOBAL::warn = sub {	116	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	117	my $msg = join "", @_;
		118	utf8::encode $msg;
		119
71	$msg .= "\n"	120	$msg .= "\n"
72	unless $msg =~ /\n$/;	121	unless $msg =~ /\n$/;
73		122
74	print STDERR "cfperl: $msg";
75	LOG llevError, "cfperl: $msg";	123	LOG llevError, "cfperl: $msg";
76	};	124	};
77	}	125	}
78		126
79	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
84	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
85		133
86	# we bless all objects into (empty) derived classes to force a method lookup	134	# we bless all objects into (empty) derived classes to force a method lookup
87	# within the Safe compartment.	135	# within the Safe compartment.
88	for my $pkg (qw(	136	for my $pkg (qw(
89	cf::global	137	cf::global cf::attachable
90	cf::object cf::object::player	138	cf::object cf::object::player
91	cf::client cf::player	139	cf::client cf::player
92	cf::arch cf::living	140	cf::arch cf::living
93	cf::map cf::party cf::region	141	cf::map cf::party cf::region
94	)) {	142	)) {
…		…
132	sub to_json($) {	180	sub to_json($) {
133	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
134	JSON::Syck::Dump $_[0]	182	JSON::Syck::Dump $_[0]
135	}	183	}
136		184
		185	=item cf::lock_wait $string
		186
		187	Wait until the given lock is available. See cf::lock_acquire.
		188
		189	=item my $lock = cf::lock_acquire $string
		190
		191	Wait until the given lock is available and then acquires it and returns
		192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		193	for example when the coroutine gets canceled), the lock is automatically
		194	returned.
		195
		196	Lock names should begin with a unique identifier (for example, cf::map::find
		197	uses map_find and cf::map::load uses map_load).
		198
		199	=cut
		200
		201	our %LOCK;
		202
		203	sub lock_wait($) {
		204	my ($key) = @_;
		205
		206	# wait for lock, if any
		207	while ($LOCK{$key}) {
		208	push @{ $LOCK{$key} }, $Coro::current;
		209	Coro::schedule;
		210	}
		211	}
		212
		213	sub lock_acquire($) {
		214	my ($key) = @_;
		215
		216	# wait, to be sure we are not locked
		217	lock_wait $key;
		218
		219	$LOCK{$key} = [];
		220
		221	Coro::guard {
		222	# wake up all waiters, to be on the safe side
		223	$_->ready for @{ delete $LOCK{$key} };
		224	}
		225	}
		226
		227	sub freeze_mainloop {
		228	return unless $TICK_WATCHER->is_active;
		229
		230	my $guard = Coro::guard { $TICK_WATCHER->start };
		231	$TICK_WATCHER->stop;
		232	$guard
		233	}
		234
		235	=item cf::async { BLOCK }
		236
		237	Currently the same as Coro::async_pool, meaning you cannot use
		238	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		239	thing you are allowed to do is call C<prio> on it.
		240
		241	=cut
		242
		243	BEGIN { *async = \&Coro::async_pool }
		244
		245	=item cf::sync_job { BLOCK }
		246
		247	The design of crossfire+ requires that the main coro ($Coro::main) is
		248	always able to handle events or runnable, as crossfire+ is only partly
		249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		250
		251	If it must be done, put the blocking parts into C<sync_job>. This will run
		252	the given BLOCK in another coroutine while waiting for the result. The
		253	server will be frozen during this time, so the block should either finish
		254	fast or be very important.
		255
		256	=cut
		257
		258	sub sync_job(&) {
		259	my ($job) = @_;
		260
		261	if ($Coro::current == $Coro::main) {
		262	# this is the main coro, too bad, we have to block
		263	# till the operation succeeds, freezing the server :/
		264
		265	# TODO: use suspend/resume instead
		266	# (but this is cancel-safe)
		267	my $freeze_guard = freeze_mainloop;
		268
		269	my $busy = 1;
		270	my @res;
		271
		272	(async {
		273	@res = eval { $job->() };
		274	warn $@ if $@;
		275	undef $busy;
		276	})->prio (Coro::PRIO_MAX);
		277
		278	while ($busy) {
		279	Coro::cede or Event::one_event;
		280	}
		281
		282	wantarray ? @res : $res[0]
		283	} else {
		284	# we are in another coroutine, how wonderful, everything just works
		285
		286	$job->()
		287	}
		288	}
		289
		290	=item $coro = cf::async_ext { BLOCK }
		291
		292	Like async, but this coro is automcatially being canceled when the
		293	extension calling this is being unloaded.
		294
		295	=cut
		296
		297	sub async_ext(&) {
		298	my $cb = shift;
		299
		300	my $coro = &Coro::async ($cb);
		301
		302	$coro->on_destroy (sub {
		303	delete $EXT_CORO{$coro+0};
		304	});
		305	$EXT_CORO{$coro+0} = $coro;
		306
		307	$coro
		308	}
		309
		310	sub write_runtime {
		311	my $runtime = cf::localdir . "/runtime";
		312
		313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		314	or return;
		315
		316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		318	and return;
		319
		320	aio_fsync $fh
		321	and return;
		322
		323	close $fh
		324	or return;
		325
		326	aio_rename "$runtime~", $runtime
		327	and return;
		328
		329	1
		330	}
		331
137	=back	332	=back
138		333
139	=cut	334	=cut
		335
		336	#############################################################################
		337
		338	package cf::path;
		339
		340	sub new {
		341	my ($class, $path, $base) = @_;
		342
		343	$path = $path->as_string if ref $path;
		344
		345	my $self = bless { }, $class;
		346
		347	# {... are special paths that are not touched
		348	# ?xxx/... are special absolute paths
		349	# ?random/... random maps
		350	# /! non-realised random map exit
		351	# /... normal maps
		352	# ~/... per-player maps without a specific player (DO NOT USE)
		353	# ~user/... per-player map of a specific user
		354
		355	if ($path =~ /^{/) {
		356	# fine as it is
		357	} elsif ($path =~ s{^\?random/}{}) {
		358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		359	$self->{random} = cf::from_json $data;
		360	} else {
		361	if ($path =~ s{^~([^/]+)?}{}) {
		362	$self->{user_rel} = 1;
		363
		364	if (defined $1) {
		365	$self->{user} = $1;
		366	} elsif ($base =~ m{^~([^/]+)/}) {
		367	$self->{user} = $1;
		368	} else {
		369	warn "cannot resolve user-relative path without user <$path,$base>\n";
		370	}
		371	} elsif ($path =~ /^\//) {
		372	# already absolute
		373	} else {
		374	$base =~ s{[^/]+/?$}{};
		375	return $class->new ("$base/$path");
		376	}
		377
		378	for ($path) {
		379	redo if s{/\.?/}{/};
		380	redo if s{/[^/]+/\.\./}{/};
		381	}
		382	}
		383
		384	$self->{path} = $path;
		385
		386	$self
		387	}
		388
		389	# the name / primary key / in-game path
		390	sub as_string {
		391	my ($self) = @_;
		392
		393	$self->{user_rel} ? "~$self->{user}$self->{path}"
		394	: $self->{random} ? "?random/$self->{path}"
		395	: $self->{path}
		396	}
		397
		398	# the displayed name, this is a one way mapping
		399	sub visible_name {
		400	my ($self) = @_;
		401
		402	# if (my $rmp = $self->{random}) {
		403	# # todo: be more intelligent about this
		404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		405	# } else {
		406	$self->as_string
		407	# }
		408	}
		409
		410	# escape the /'s in the path
		411	sub _escaped_path {
		412	# ∕ is U+2215
		413	(my $path = $_[0]{path}) =~ s/\//∕/g;
		414	$path
		415	}
		416
		417	# the original (read-only) location
		418	sub load_path {
		419	my ($self) = @_;
		420
		421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		422	}
		423
		424	# the temporary/swap location
		425	sub save_path {
		426	my ($self) = @_;
		427
		428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		431	}
		432
		433	# the unique path, might be eq to save_path
		434	sub uniq_path {
		435	my ($self) = @_;
		436
		437	$self->{user_rel} || $self->{random}
		438	? undef
		439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		440	}
		441
		442	# return random map parameters, or undef
		443	sub random_map_params {
		444	my ($self) = @_;
		445
		446	$self->{random}
		447	}
		448
		449	# this is somewhat ugly, but style maps do need special treatment
		450	sub is_style_map {
		451	$_[0]{path} =~ m{^/styles/}
		452	}
		453
		454	package cf;
140		455
141	#############################################################################	456	#############################################################################
142		457
143	=head2 ATTACHABLE OBJECTS	458	=head2 ATTACHABLE OBJECTS
144		459
…		…
249	my ($self, $victim) = @_;	564	my ($self, $victim) = @_;
250	...	565	...
251	}	566	}
252	}	567	}
253		568
		569	=item $attachable->valid
		570
		571	Just because you have a perl object does not mean that the corresponding
		572	C-level object still exists. If you try to access an object that has no
		573	valid C counterpart anymore you get an exception at runtime. This method
		574	can be used to test for existence of the C object part without causing an
		575	exception.
		576
254	=cut	577	=cut
255		578
256	# the following variables are defined in .xs and must not be re-created	579	# the following variables are defined in .xs and must not be re-created
257	our @CB_GLOBAL = (); # registry for all global events	580	our @CB_GLOBAL = (); # registry for all global events
		581	our @CB_ATTACHABLE = (); # registry for all attachables
258	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	582	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
259	our @CB_PLAYER = ();	583	our @CB_PLAYER = ();
260	our @CB_CLIENT = ();	584	our @CB_CLIENT = ();
261	our @CB_TYPE = (); # registry for type (cf-object class) based events	585	our @CB_TYPE = (); # registry for type (cf-object class) based events
262	our @CB_MAP = ();	586	our @CB_MAP = ();
263		587
264	my %attachment;	588	my %attachment;
265		589
266	sub _attach_cb($$$$) {	590	sub _attach_cb($$$$) {
267	my ($registry, $event, $prio, $cb) = @_;	591	my ($registry, $event, $prio, $cb) = @_;
…		…
272		596
273	@{$registry->[$event]} = sort	597	@{$registry->[$event]} = sort
274	{ $a->[0] cmp $b->[0] }	598	{ $a->[0] cmp $b->[0] }
275	@{$registry->[$event] || []}, $cb;	599	@{$registry->[$event] || []}, $cb;
276	}	600	}
		601
		602	# hack
		603	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
277		604
278	# attach handles attaching event callbacks	605	# attach handles attaching event callbacks
279	# the only thing the caller has to do is pass the correct	606	# the only thing the caller has to do is pass the correct
280	# registry (== where the callback attaches to).	607	# registry (== where the callback attaches to).
281	sub _attach {	608	sub _attach {
…		…
283		610
284	my $object_type;	611	my $object_type;
285	my $prio = 0;	612	my $prio = 0;
286	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	613	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
287		614
		615	#TODO: get rid of this hack
		616	if ($attachable_klass{$klass}) {
		617	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		618	}
		619
288	while (@arg) {	620	while (@arg) {
289	my $type = shift @arg;	621	my $type = shift @arg;
290		622
291	if ($type eq "prio") {	623	if ($type eq "prio") {
292	$prio = shift @arg;	624	$prio = shift @arg;
…		…
367	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
368		700
369	exists $obj->{_attachment}{$name}	701	exists $obj->{_attachment}{$name}
370	}	702	}
371		703
372	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	704	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
373	eval "#line " . __LINE__ . " 'cf.pm'	705	eval "#line " . __LINE__ . " 'cf.pm'
374	sub cf::\L$klass\E::_attach_registry {	706	sub cf::\L$klass\E::_attach_registry {
375	(\\\@CB_$klass, KLASS_$klass)	707	(\\\@CB_$klass, KLASS_$klass)
376	}	708	}
377		709
…		…
413	}	745	}
414		746
415	0	747	0
416	}	748	}
417		749
418	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
419		751
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, ...)	752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
425		753
426	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
427
428	Generate a global/object/player/map-specific event with the given arguments.	754	Generate an object-specific event with the given arguments.
429		755
430	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be	756	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	757	removed in future versions), and there is no public API to access override
432	results (if you must, access C<@cf::invoke_results> directly).	758	results (if you must, access C<@cf::invoke_results> directly).
433		759
434	=back	760	=back
435		761
436	=cut	762	=cut
437		763
438	#############################################################################	764	#############################################################################
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	765	# object support
460		766
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 {	767	sub reattach {
		768	# basically do the same as instantiate, without calling instantiate
475	my ($obj) = @_;	769	my ($obj) = @_;
		770
476	my $registry = $obj->registry;	771	my $registry = $obj->registry;
477		772
478	@$registry = ();	773	@$registry = ();
479		774
480	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	775	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
489	warn "object uses attachment '$name' that is not available, postponing.\n";	784	warn "object uses attachment '$name' that is not available, postponing.\n";
490	}	785	}
491	}	786	}
492	}	787	}
493		788
494	sub object_freezer_save {	789	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	$$rdata . Dumper $objs
531	}
532
533	sub object_thawer_load {
534	my ($filename) = @_;
535
536	local $/;
537
538	my $av;
539
540	#TODO: use sysread etc.
541	if (open my $data, "<:raw:perlio", $filename) {
542	$data = <$data>;
543	if (open my $pst, "<:raw:perlio", "$filename.pst") {
544	$av = eval { (Storable::thaw <$pst>)->{objs} };
545	}
546	return ($data, $av);
547	}
548
549	()
550	}
551
552	cf::object->attach (
553	prio => -1000000,	790	prio => -1000000,
		791	on_instantiate => sub {
		792	my ($obj, $data) = @_;
		793
		794	$data = from_json $data;
		795
		796	for (@$data) {
		797	my ($name, $args) = @$_;
		798
		799	$obj->attach ($name, %{$args || {} });
		800	}
		801	},
		802	on_reattach => \&reattach,
554	on_clone => sub {	803	on_clone => sub {
555	my ($src, $dst) = @_;	804	my ($src, $dst) = @_;
556		805
557	@{$dst->registry} = @{$src->registry};	806	@{$dst->registry} = @{$src->registry};
558		807
…		…
560		809
561	%{$dst->{_attachment}} = %{$src->{_attachment}}	810	%{$dst->{_attachment}} = %{$src->{_attachment}}
562	if exists $src->{_attachment};	811	if exists $src->{_attachment};
563	},	812	},
564	);	813	);
		814
		815	sub object_freezer_save {
		816	my ($filename, $rdata, $objs) = @_;
		817
		818	sync_job {
		819	if (length $$rdata) {
		820	warn sprintf "saving %s (%d,%d)\n",
		821	$filename, length $$rdata, scalar @$objs;
		822
		823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		824	chmod SAVE_MODE, $fh;
		825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		826	aio_fsync $fh;
		827	close $fh;
		828
		829	if (@$objs) {
		830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		831	chmod SAVE_MODE, $fh;
		832	my $data = Storable::nfreeze { version => 1, objs => $objs };
		833	aio_write $fh, 0, (length $data), $data, 0;
		834	aio_fsync $fh;
		835	close $fh;
		836	aio_rename "$filename.pst~", "$filename.pst";
		837	}
		838	} else {
		839	aio_unlink "$filename.pst";
		840	}
		841
		842	aio_rename "$filename~", $filename;
		843	} else {
		844	warn "FATAL: $filename~: $!\n";
		845	}
		846	} else {
		847	aio_unlink $filename;
		848	aio_unlink "$filename.pst";
		849	}
		850	}
		851	}
		852
		853	sub object_freezer_as_string {
		854	my ($rdata, $objs) = @_;
		855
		856	use Data::Dumper;
		857
		858	$$rdata . Dumper $objs
		859	}
		860
		861	sub object_thawer_load {
		862	my ($filename) = @_;
		863
		864	my ($data, $av);
		865
		866	(aio_load $filename, $data) >= 0
		867	or return;
		868
		869	unless (aio_stat "$filename.pst") {
		870	(aio_load "$filename.pst", $av) >= 0
		871	or return;
		872	$av = eval { (Storable::thaw $av)->{objs} };
		873	}
		874
		875	warn sprintf "loading %s (%d)\n",
		876	$filename, length $data, scalar @{$av || []};#d#
		877	return ($data, $av);
		878	}
565		879
566	#############################################################################	880	#############################################################################
567	# command handling &c	881	# command handling &c
568		882
569	=item cf::register_command $name => \&callback($ob,$args);	883	=item cf::register_command $name => \&callback($ob,$args);
…		…
758		1072
759	=head2 CORE EXTENSIONS	1073	=head2 CORE EXTENSIONS
760		1074
761	Functions and methods that extend core crossfire objects.	1075	Functions and methods that extend core crossfire objects.
762		1076
		1077	=cut
		1078
		1079	package cf::player;
		1080
		1081	=head3 cf::player
		1082
763	=over 4	1083	=over 4
764		1084
765	=item cf::player::exists $login	1085	=item cf::player::find $login
766		1086
767	Returns true when the given account exists.	1087	Returns the given player object, loading it if necessary (might block).
768		1088
769	=cut	1089	=cut
770		1090
771	sub cf::player::exists($) {	1091	sub path($) {
772	cf::player::find $_[0]	1092	sprintf "%s/%s/%s/%s.pl",
773	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1093	cf::localdir, cf::playerdir,
		1094	(ref $_[0] ? $_[0]->ob->name : $_[0]) x 2
774	}	1095	}
		1096
		1097	sub find_active($) {
		1098	$cf::PLAYER{$_[0]}
		1099	and $cf::PLAYER{$_[0]}->active
		1100	and $cf::PLAYER{$_[0]}
		1101	}
		1102
		1103	sub exists($) {
		1104	my ($login) = @_;
		1105
		1106	$cf::PLAYER{$login}
		1107	or cf::sync_job { !aio_stat $login }
		1108	}
		1109
		1110	sub find($) {
		1111	return $cf::PLAYER{$_[0]} || do {
		1112	my $login = $_[0];
		1113
		1114	my $guard = cf::lock_acquire "user_find:$login";
		1115
		1116	$cf::PLAYER{$login} ||= (load_pl path $login or return);
		1117	};
		1118	}
		1119
		1120	sub save($) {
		1121	my ($pl) = @_;
		1122
		1123	return if $pl->{deny_save};
		1124
		1125	my $path = path $pl;
		1126	my $guard = cf::lock_acquire "user_save:$path";
		1127
		1128	return if $pl->{deny_save};
		1129	$pl->{last_save} = $cf::RUNTIME;
		1130
		1131	Coro::cede;
		1132	$pl->save_pl ($path);
		1133	Coro::cede;
		1134	}
		1135
		1136	sub new($) {
		1137	my ($login) = @_;
		1138
		1139	my $self = create;
		1140
		1141	$self->ob->name ($login);
		1142	$self->{deny_save} = 1;
		1143
		1144	$cf::PLAYER{$login} = $self;
		1145
		1146	$self
		1147	}
		1148
		1149	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1150
		1151	Sends an ext reply to the player.
		1152
		1153	=cut
		1154
		1155	sub ext_reply($$$%) {
		1156	my ($self, $id, %msg) = @_;
		1157
		1158	$msg{msgid} = $id;
		1159
		1160	$self->send ("ext " . cf::to_json \%msg);
		1161	}
		1162
		1163	package cf;
		1164
		1165	=back
		1166
		1167
		1168	=head3 cf::map
		1169
		1170	=over 4
		1171
		1172	=cut
		1173
		1174	package cf::map;
		1175
		1176	use Fcntl;
		1177	use Coro::AIO;
		1178
		1179	our $MAX_RESET = 3600;
		1180	our $DEFAULT_RESET = 3000;
		1181
		1182	sub generate_random_map {
		1183	my ($path, $rmp) = @_;
		1184
		1185	# mit "rum" bekleckern, nicht
		1186	cf::map::_create_random_map
		1187	$path,
		1188	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1189	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1190	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1191	$rmp->{exit_on_final_map},
		1192	$rmp->{xsize}, $rmp->{ysize},
		1193	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1194	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1195	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1196	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1197	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1198	(cf::region::find $rmp->{region})
		1199	}
		1200
		1201	# and all this just because we cannot iterate over
		1202	# all maps in C++...
		1203	sub change_all_map_light {
		1204	my ($change) = @_;
		1205
		1206	$_->change_map_light ($change)
		1207	for grep $_->outdoor, values %cf::MAP;
		1208	}
		1209
		1210	sub try_load_header($) {
		1211	my ($path) = @_;
		1212
		1213	utf8::encode $path;
		1214	aio_open $path, O_RDONLY, 0
		1215	or return;
		1216
		1217	my $map = cf::map::new
		1218	or return;
		1219
		1220	# for better error messages only, will be overwritten
		1221	$map->path ($path);
		1222
		1223	$map->load_header ($path)
		1224	or return;
		1225
		1226	$map->{load_path} = $path;
		1227
		1228	$map
		1229	}
		1230
		1231	sub find;
		1232	sub find {
		1233	my ($path, $origin) = @_;
		1234
		1235	#warn "find<$path,$origin>\n";#d#
		1236
		1237	$path = new cf::path $path, $origin && $origin->path;
		1238	my $key = $path->as_string;
		1239
		1240	cf::lock_wait "map_find:$key";
		1241
		1242	$cf::MAP{$key} || do {
		1243	my $guard = cf::lock_acquire "map_find:$key";
		1244
		1245	# do it the slow way
		1246	my $map = try_load_header $path->save_path;
		1247
		1248	Coro::cede;
		1249
		1250	if ($map) {
		1251	$map->last_access ((delete $map->{last_access})
		1252	|| $cf::RUNTIME); #d#
		1253	# safety
		1254	$map->{instantiate_time} = $cf::RUNTIME
		1255	if $map->{instantiate_time} > $cf::RUNTIME;
		1256	} else {
		1257	if (my $rmp = $path->random_map_params) {
		1258	$map = generate_random_map $key, $rmp;
		1259	} else {
		1260	$map = try_load_header $path->load_path;
		1261	}
		1262
		1263	$map or return;
		1264
		1265	$map->{load_original} = 1;
		1266	$map->{instantiate_time} = $cf::RUNTIME;
		1267	$map->last_access ($cf::RUNTIME);
		1268	$map->instantiate;
		1269
		1270	# per-player maps become, after loading, normal maps
		1271	$map->per_player (0) if $path->{user_rel};
		1272	}
		1273
		1274	$map->path ($key);
		1275	$map->{path} = $path;
		1276	$map->{last_save} = $cf::RUNTIME;
		1277
		1278	Coro::cede;
		1279
		1280	if ($map->should_reset) {
		1281	$map->reset;
		1282	undef $guard;
		1283	$map = find $path
		1284	or return;
		1285	}
		1286
		1287	$cf::MAP{$key} = $map
		1288	}
		1289	}
		1290
		1291	sub load {
		1292	my ($self) = @_;
		1293
		1294	my $path = $self->{path};
		1295	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1296
		1297	return if $self->in_memory != cf::MAP_SWAPPED;
		1298
		1299	$self->in_memory (cf::MAP_LOADING);
		1300
		1301	$self->alloc;
		1302	$self->load_objects ($self->{load_path}, 1)
		1303	or return;
		1304
		1305	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1306	if delete $self->{load_original};
		1307
		1308	if (my $uniq = $path->uniq_path) {
		1309	utf8::encode $uniq;
		1310	if (aio_open $uniq, O_RDONLY, 0) {
		1311	$self->clear_unique_items;
		1312	$self->load_objects ($uniq, 0);
		1313	}
		1314	}
		1315
		1316	Coro::cede;
		1317
		1318	# now do the right thing for maps
		1319	$self->link_multipart_objects;
		1320
		1321	if ($self->{path}->is_style_map) {
		1322	$self->{deny_save} = 1;
		1323	$self->{deny_reset} = 1;
		1324	} else {
		1325	$self->fix_auto_apply;
		1326	$self->decay_objects;
		1327	$self->update_buttons;
		1328	$self->set_darkness_map;
		1329	$self->difficulty ($self->estimate_difficulty)
		1330	unless $self->difficulty;
		1331	$self->activate;
		1332	}
		1333
		1334	Coro::cede;
		1335
		1336	$self->in_memory (cf::MAP_IN_MEMORY);
		1337	}
		1338
		1339	sub find_sync {
		1340	my ($path, $origin) = @_;
		1341
		1342	cf::sync_job { cf::map::find $path, $origin }
		1343	}
		1344
		1345	sub do_load_sync {
		1346	my ($map) = @_;
		1347
		1348	cf::sync_job { $map->load };
		1349	}
		1350
		1351	sub save {
		1352	my ($self) = @_;
		1353
		1354	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1355
		1356	$self->{last_save} = $cf::RUNTIME;
		1357
		1358	return unless $self->dirty;
		1359
		1360	my $save = $self->{path}->save_path; utf8::encode $save;
		1361	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1362
		1363	$self->{load_path} = $save;
		1364
		1365	return if $self->{deny_save};
		1366
		1367	local $self->{last_access} = $self->last_access;#d#
		1368
		1369	cf::async {
		1370	$_->contr->save for $self->players;
		1371	};
		1372
		1373	if ($uniq) {
		1374	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1375	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1376	} else {
		1377	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1378	}
		1379	}
		1380
		1381	sub swap_out {
		1382	my ($self) = @_;
		1383
		1384	# save first because save cedes
		1385	$self->save;
		1386
		1387	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1388
		1389	return if $self->players;
		1390	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1391	return if $self->{deny_save};
		1392
		1393	$self->clear;
		1394	$self->in_memory (cf::MAP_SWAPPED);
		1395	}
		1396
		1397	sub reset_at {
		1398	my ($self) = @_;
		1399
		1400	# TODO: safety, remove and allow resettable per-player maps
		1401	return 1e99 if $self->{path}{user_rel};
		1402	return 1e99 if $self->{deny_reset};
		1403
		1404	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1405	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1406
		1407	$time + $to
		1408	}
		1409
		1410	sub should_reset {
		1411	my ($self) = @_;
		1412
		1413	$self->reset_at <= $cf::RUNTIME
		1414	}
		1415
		1416	sub unlink_save {
		1417	my ($self) = @_;
		1418
		1419	utf8::encode (my $save = $self->{path}->save_path);
		1420	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1421	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1422	}
		1423
		1424	sub rename {
		1425	my ($self, $new_path) = @_;
		1426
		1427	$self->unlink_save;
		1428
		1429	delete $cf::MAP{$self->path};
		1430	$self->{path} = new cf::path $new_path;
		1431	$self->path ($self->{path}->as_string);
		1432	$cf::MAP{$self->path} = $self;
		1433
		1434	$self->save;
		1435	}
		1436
		1437	sub reset {
		1438	my ($self) = @_;
		1439
		1440	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1441
		1442	return if $self->players;
		1443	return if $self->{path}{user_rel};#d#
		1444
		1445	warn "resetting map ", $self->path;#d#
		1446
		1447	delete $cf::MAP{$self->path};
		1448
		1449	$_->clear_links_to ($self) for values %cf::MAP;
		1450
		1451	$self->unlink_save;
		1452	$self->destroy;
		1453	}
		1454
		1455	my $nuke_counter = "aaaa";
		1456
		1457	sub nuke {
		1458	my ($self) = @_;
		1459
		1460	$self->{deny_save} = 1;
		1461	$self->reset_timeout (1);
		1462	$self->rename ("{nuke}/" . ($nuke_counter++));
		1463	$self->reset; # polite request, might not happen
		1464	}
		1465
		1466	sub customise_for {
		1467	my ($map, $ob) = @_;
		1468
		1469	if ($map->per_player) {
		1470	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1471	}
		1472
		1473	$map
		1474	}
		1475
		1476	sub emergency_save {
		1477	my $freeze_guard = cf::freeze_mainloop;
		1478
		1479	warn "enter emergency perl save\n";
		1480
		1481	cf::sync_job {
		1482	warn "begin emergency player save\n";
		1483	$_->save for values %cf::PLAYER;
		1484	warn "end emergency player save\n";
		1485
		1486	warn "begin emergency map save\n";
		1487	$_->save for values %cf::MAP;
		1488	warn "end emergency map save\n";
		1489	};
		1490
		1491	warn "leave emergency perl save\n";
		1492	}
		1493
		1494	package cf;
		1495
		1496	=back
		1497
		1498
		1499	=head3 cf::object::player
		1500
		1501	=over 4
775		1502
776	=item $player_object->reply ($npc, $msg[, $flags])	1503	=item $player_object->reply ($npc, $msg[, $flags])
777		1504
778	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1505	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
779	can be C<undef>. Does the right thing when the player is currently in a	1506	can be C<undef>. Does the right thing when the player is currently in a
…		…
781		1508
782	=cut	1509	=cut
783		1510
784	# rough implementation of a future "reply" method that works	1511	# rough implementation of a future "reply" method that works
785	# with dialog boxes.	1512	# with dialog boxes.
		1513	#TODO: the first argument must go, split into a $npc->reply_to ( method
786	sub cf::object::player::reply($$$;$) {	1514	sub cf::object::player::reply($$$;$) {
787	my ($self, $npc, $msg, $flags) = @_;	1515	my ($self, $npc, $msg, $flags) = @_;
788		1516
789	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1517	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
790		1518
…		…
794	$msg = $npc->name . " says: $msg" if $npc;	1522	$msg = $npc->name . " says: $msg" if $npc;
795	$self->message ($msg, $flags);	1523	$self->message ($msg, $flags);
796	}	1524	}
797	}	1525	}
798		1526
799	=item $player->ext_reply ($msgid, $msgtype, %msg)
800
801	Sends an ext reply to the player.
802
803	=cut
804
805	sub cf::player::ext_reply($$$%) {
806	my ($self, $id, %msg) = @_;
807
808	$msg{msgid} = $id;
809
810	$self->send ("ext " . to_json \%msg);
811	}
812
813	=item $player_object->may ("access")	1527	=item $player_object->may ("access")
814		1528
815	Returns wether the given player is authorized to access resource "access"	1529	Returns wether the given player is authorized to access resource "access"
816	(e.g. "command_wizcast").	1530	(e.g. "command_wizcast").
817		1531
…		…
824	(ref $cf::CFG{"may_$access"}	1538	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1539	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	1540	: $cf::CFG{"may_$access"})
827	}	1541	}
828		1542
829	=cut	1543	=item $player_object->enter_link
830		1544
831	#############################################################################	1545	Freezes the player and moves him/her to a special map (C<{link}>).
		1546
		1547	The player should be reaosnably safe there for short amounts of time. You
		1548	I<MUST> call C<leave_link> as soon as possible, though.
		1549
		1550	=item $player_object->leave_link ($map, $x, $y)
		1551
		1552	Moves the player out of the specila link map onto the given map. If the
		1553	map is not valid (or omitted), the player will be moved back to the
		1554	location he/she was before the call to C<enter_link>, or, if that fails,
		1555	to the emergency map position.
		1556
		1557	Might block.
		1558
		1559	=cut
		1560
		1561	sub cf::object::player::enter_link {
		1562	my ($self) = @_;
		1563
		1564	$self->deactivate_recursive;
		1565
		1566	return if $self->map == $LINK_MAP;
		1567
		1568	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1569	if $self->map;
		1570
		1571	$self->enter_map ($LINK_MAP, 20, 20);
		1572	}
		1573
		1574	sub cf::object::player::leave_link {
		1575	my ($self, $map, $x, $y) = @_;
		1576
		1577	my $link_pos = delete $self->{_link_pos};
		1578
		1579	unless ($map) {
		1580	# restore original map position
		1581	($map, $x, $y) = @{ $link_pos || [] };
		1582	$map = cf::map::find $map;
		1583
		1584	unless ($map) {
		1585	($map, $x, $y) = @$EMERGENCY_POSITION;
		1586	$map = cf::map::find $map
		1587	or die "FATAL: cannot load emergency map\n";
		1588	}
		1589	}
		1590
		1591	($x, $y) = (-1, -1)
		1592	unless (defined $x) && (defined $y);
		1593
		1594	# use -1 or undef as default coordinates, not 0, 0
		1595	($x, $y) = ($map->enter_x, $map->enter_y)
		1596	if $x <=0 && $y <= 0;
		1597
		1598	$map->load;
		1599
		1600	return unless $self->contr->active;
		1601	$self->activate_recursive;
		1602	$self->enter_map ($map, $x, $y);
		1603	}
		1604
		1605	cf::player->attach (
		1606	on_logout => sub {
		1607	my ($pl) = @_;
		1608
		1609	# abort map switching before logout
		1610	if ($pl->ob->{_link_pos}) {
		1611	cf::sync_job {
		1612	$pl->ob->leave_link
		1613	};
		1614	}
		1615	},
		1616	on_login => sub {
		1617	my ($pl) = @_;
		1618
		1619	# try to abort aborted map switching on player login :)
		1620	# should happen only on crashes
		1621	if ($pl->ob->{_link_pos}) {
		1622	$pl->ob->enter_link;
		1623	(async {
		1624	# we need this sleep as the login has a concurrent enter_exit running
		1625	# and this sleep increases chances of the player not ending up in scorn
		1626	$pl->ob->reply (undef,
		1627	"There was an internal problem at your last logout, "
		1628	. "the server will try to bring you to your intended destination in a second.",
		1629	cf::NDI_RED);
		1630	Coro::Timer::sleep 1;
		1631	$pl->ob->leave_link;
		1632	})->prio (2);
		1633	}
		1634	},
		1635	);
		1636
		1637	=item $player_object->goto ($path, $x, $y)
		1638
		1639	=cut
		1640
		1641	sub cf::object::player::goto {
		1642	my ($self, $path, $x, $y) = @_;
		1643
		1644	$self->enter_link;
		1645
		1646	(async {
		1647	$path = new cf::path $path;
		1648
		1649	my $map = cf::map::find $path->as_string;
		1650	$map = $map->customise_for ($self) if $map;
		1651
		1652	# warn "entering ", $map->path, " at ($x, $y)\n"
		1653	# if $map;
		1654
		1655	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1656
		1657	$self->leave_link ($map, $x, $y);
		1658	})->prio (1);
		1659	}
		1660
		1661	=item $player_object->enter_exit ($exit_object)
		1662
		1663	=cut
		1664
		1665	sub parse_random_map_params {
		1666	my ($spec) = @_;
		1667
		1668	my $rmp = { # defaults
		1669	xsize => 10,
		1670	ysize => 10,
		1671	};
		1672
		1673	for (split /\n/, $spec) {
		1674	my ($k, $v) = split /\s+/, $_, 2;
		1675
		1676	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1677	}
		1678
		1679	$rmp
		1680	}
		1681
		1682	sub prepare_random_map {
		1683	my ($exit) = @_;
		1684
		1685	# all this does is basically replace the /! path by
		1686	# a new random map path (?random/...) with a seed
		1687	# that depends on the exit object
		1688
		1689	my $rmp = parse_random_map_params $exit->msg;
		1690
		1691	if ($exit->map) {
		1692	$rmp->{region} = $exit->map->region_name;
		1693	$rmp->{origin_map} = $exit->map->path;
		1694	$rmp->{origin_x} = $exit->x;
		1695	$rmp->{origin_y} = $exit->y;
		1696	}
		1697
		1698	$rmp->{random_seed} ||= $exit->random_seed;
		1699
		1700	my $data = cf::to_json $rmp;
		1701	my $md5 = Digest::MD5::md5_hex $data;
		1702
		1703	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1704	aio_write $fh, 0, (length $data), $data, 0;
		1705
		1706	$exit->slaying ("?random/$md5");
		1707	$exit->msg (undef);
		1708	}
		1709	}
		1710
		1711	sub cf::object::player::enter_exit {
		1712	my ($self, $exit) = @_;
		1713
		1714	return unless $self->type == cf::PLAYER;
		1715
		1716	$self->enter_link;
		1717
		1718	(async {
		1719	$self->deactivate_recursive; # just to be sure
		1720	unless (eval {
		1721	prepare_random_map $exit
		1722	if $exit->slaying eq "/!";
		1723
		1724	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1725	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1726
		1727	1;
		1728	}) {
		1729	$self->message ("Something went wrong deep within the crossfire server. "
		1730	. "I'll try to bring you back to the map you were before. "
		1731	. "Please report this to the dungeon master",
		1732	cf::NDI_UNIQUE | cf::NDI_RED);
		1733
		1734	warn "ERROR in enter_exit: $@";
		1735	$self->leave_link;
		1736	}
		1737	})->prio (1);
		1738	}
		1739
		1740	=head3 cf::client
		1741
		1742	=over 4
		1743
		1744	=item $client->send_drawinfo ($text, $flags)
		1745
		1746	Sends a drawinfo packet to the client. Circumvents output buffering so
		1747	should not be used under normal circumstances.
		1748
		1749	=cut
		1750
		1751	sub cf::client::send_drawinfo {
		1752	my ($self, $text, $flags) = @_;
		1753
		1754	utf8::encode $text;
		1755	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1756	}
		1757
		1758
		1759	=item $success = $client->query ($flags, "text", \&cb)
		1760
		1761	Queues a query to the client, calling the given callback with
		1762	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1763	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1764
		1765	Queries can fail, so check the return code. Or don't, as queries will become
		1766	reliable at some point in the future.
		1767
		1768	=cut
		1769
		1770	sub cf::client::query {
		1771	my ($self, $flags, $text, $cb) = @_;
		1772
		1773	return unless $self->state == ST_PLAYING
		1774	|| $self->state == ST_SETUP
		1775	|| $self->state == ST_CUSTOM;
		1776
		1777	$self->state (ST_CUSTOM);
		1778
		1779	utf8::encode $text;
		1780	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1781
		1782	$self->send_packet ($self->{query_queue}[0][0])
		1783	if @{ $self->{query_queue} } == 1;
		1784	}
		1785
		1786	cf::client->attach (
		1787	on_reply => sub {
		1788	my ($ns, $msg) = @_;
		1789
		1790	# this weird shuffling is so that direct followup queries
		1791	# get handled first
		1792	my $queue = delete $ns->{query_queue}
		1793	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1794
		1795	(shift @$queue)->[1]->($msg);
		1796
		1797	push @{ $ns->{query_queue} }, @$queue;
		1798
		1799	if (@{ $ns->{query_queue} } == @$queue) {
		1800	if (@$queue) {
		1801	$ns->send_packet ($ns->{query_queue}[0][0]);
		1802	} else {
		1803	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1804	}
		1805	}
		1806	},
		1807	);
		1808
		1809	=item $client->async (\&cb)
		1810
		1811	Create a new coroutine, running the specified callback. The coroutine will
		1812	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1813	or loss of connection).
		1814
		1815	=cut
		1816
		1817	sub cf::client::async {
		1818	my ($self, $cb) = @_;
		1819
		1820	my $coro = &Coro::async ($cb);
		1821
		1822	$coro->on_destroy (sub {
		1823	delete $self->{_coro}{$coro+0};
		1824	});
		1825
		1826	$self->{_coro}{$coro+0} = $coro;
		1827
		1828	$coro
		1829	}
		1830
		1831	cf::client->attach (
		1832	on_destroy => sub {
		1833	my ($ns) = @_;
		1834
		1835	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1836	},
		1837	);
		1838
		1839	=back
		1840
832		1841
833	=head2 SAFE SCRIPTING	1842	=head2 SAFE SCRIPTING
834		1843
835	Functions that provide a safe environment to compile and execute	1844	Functions that provide a safe environment to compile and execute
836	snippets of perl code without them endangering the safety of the server	1845	snippets of perl code without them endangering the safety of the server
…		…
988		1997
989	{	1998	{
990	my $path = cf::localdir . "/database.pst";	1999	my $path = cf::localdir . "/database.pst";
991		2000
992	sub db_load() {	2001	sub db_load() {
993	warn "loading database $path\n";#d# remove later
994	$DB = stat $path ? Storable::retrieve $path : { };	2002	$DB = stat $path ? Storable::retrieve $path : { };
995	}	2003	}
996		2004
997	my $pid;	2005	my $pid;
998		2006
999	sub db_save() {	2007	sub db_save() {
1000	warn "saving database $path\n";#d# remove later
1001	waitpid $pid, 0 if $pid;	2008	waitpid $pid, 0 if $pid;
1002	if (0 == ($pid = fork)) {	2009	if (0 == ($pid = fork)) {
1003	$DB->{_meta}{version} = 1;	2010	$DB->{_meta}{version} = 1;
1004	Storable::nstore $DB, "$path~";	2011	Storable::nstore $DB, "$path~";
1005	rename "$path~", $path;	2012	rename "$path~", $path;
…		…
1053	open my $fh, "<:utf8", cf::confdir . "/config"	2060	open my $fh, "<:utf8", cf::confdir . "/config"
1054	or return;	2061	or return;
1055		2062
1056	local $/;	2063	local $/;
1057	*CFG = YAML::Syck::Load <$fh>;	2064	*CFG = YAML::Syck::Load <$fh>;
		2065
		2066	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2067
		2068	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2069	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2070
		2071	if (exists $CFG{mlockall}) {
		2072	eval {
		2073	$CFG{mlockall} ? &mlockall : &munlockall
		2074	and die "WARNING: m(un)lockall failed: $!\n";
		2075	};
		2076	warn $@ if $@;
		2077	}
1058	}	2078	}
1059		2079
1060	sub main {	2080	sub main {
		2081	# we must not ever block the main coroutine
		2082	local $Coro::idle = sub {
		2083	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2084	async { Event::one_event };
		2085	};
		2086
1061	cfg_load;	2087	cfg_load;
1062	db_load;	2088	db_load;
1063	load_extensions;	2089	load_extensions;
1064	Event::loop;	2090	Event::loop;
1065	}	2091	}
1066		2092
1067	#############################################################################	2093	#############################################################################
1068	# initialisation	2094	# initialisation
1069		2095
1070	sub _perl_reload(&) {	2096	sub reload() {
1071	my ($msg) = @_;	2097	# can/must only be called in main
		2098	if ($Coro::current != $Coro::main) {
		2099	warn "can only reload from main coroutine\n";
		2100	return;
		2101	}
1072		2102
1073	$msg->("reloading...");	2103	warn "reloading...";
		2104
		2105	my $guard = freeze_mainloop;
		2106	cf::emergency_save;
1074		2107
1075	eval {	2108	eval {
		2109	# if anything goes wrong in here, we should simply crash as we already saved
		2110
1076	# cancel all watchers	2111	# cancel all watchers
1077	for (Event::all_watchers) {	2112	for (Event::all_watchers) {
1078	$_->cancel if $_->data & WF_AUTOCANCEL;	2113	$_->cancel if $_->data & WF_AUTOCANCEL;
1079	}	2114	}
1080		2115
		2116	# cancel all extension coros
		2117	$_->cancel for values %EXT_CORO;
		2118	%EXT_CORO = ();
		2119
1081	# unload all extensions	2120	# unload all extensions
1082	for (@exts) {	2121	for (@exts) {
1083	$msg->("unloading <$_>");	2122	warn "unloading <$_>";
1084	unload_extension $_;	2123	unload_extension $_;
1085	}	2124	}
1086		2125
1087	# unload all modules loaded from $LIBDIR	2126	# unload all modules loaded from $LIBDIR
1088	while (my ($k, $v) = each %INC) {	2127	while (my ($k, $v) = each %INC) {
1089	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2128	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1090		2129
1091	$msg->("removing <$k>");	2130	warn "removing <$k>";
1092	delete $INC{$k};	2131	delete $INC{$k};
1093		2132
1094	$k =~ s/\.pm$//;	2133	$k =~ s/\.pm$//;
1095	$k =~ s/\//::/g;	2134	$k =~ s/\//::/g;
1096		2135
…		…
1101	Symbol::delete_package $k;	2140	Symbol::delete_package $k;
1102	}	2141	}
1103		2142
1104	# sync database to disk	2143	# sync database to disk
1105	cf::db_sync;	2144	cf::db_sync;
		2145	IO::AIO::flush;
1106		2146
1107	# get rid of safe::, as good as possible	2147	# get rid of safe::, as good as possible
1108	Symbol::delete_package "safe::$_"	2148	Symbol::delete_package "safe::$_"
1109	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2149	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1110		2150
1111	# remove register_script_function callbacks	2151	# remove register_script_function callbacks
1112	# TODO	2152	# TODO
1113		2153
1114	# unload cf.pm "a bit"	2154	# unload cf.pm "a bit"
…		…
1117	# don't, removes xs symbols, too,	2157	# don't, removes xs symbols, too,
1118	# and global variables created in xs	2158	# and global variables created in xs
1119	#Symbol::delete_package __PACKAGE__;	2159	#Symbol::delete_package __PACKAGE__;
1120		2160
1121	# reload cf.pm	2161	# reload cf.pm
1122	$msg->("reloading cf.pm");	2162	warn "reloading cf.pm";
1123	require cf;	2163	require cf;
		2164	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1124		2165
1125	# load config and database again	2166	# load config and database again
1126	cf::cfg_load;	2167	cf::cfg_load;
1127	cf::db_load;	2168	cf::db_load;
1128		2169
1129	# load extensions	2170	# load extensions
1130	$msg->("load extensions");	2171	warn "load extensions";
1131	cf::load_extensions;	2172	cf::load_extensions;
1132		2173
1133	# reattach attachments to objects	2174	# reattach attachments to objects
1134	$msg->("reattach");	2175	warn "reattach";
1135	_global_reattach;	2176	_global_reattach;
		2177	reattach $_ for values %MAP;
1136	};	2178	};
1137	$msg->($@) if $@;
1138		2179
1139	$msg->("reloaded");	2180	if ($@) {
		2181	warn $@;
		2182	warn "error while reloading, exiting.";
		2183	exit 1;
		2184	}
		2185
		2186	warn "reloaded successfully";
1140	};	2187	};
1141		2188
1142	sub perl_reload() {	2189	#############################################################################
1143	_perl_reload {	2190
1144	warn $_[0];	2191	unless ($LINK_MAP) {
1145	print "$_[0]\n";	2192	$LINK_MAP = cf::map::new;
1146	};	2193
		2194	$LINK_MAP->width (41);
		2195	$LINK_MAP->height (41);
		2196	$LINK_MAP->alloc;
		2197	$LINK_MAP->path ("{link}");
		2198	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2199	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2200
		2201	# dirty hack because... archetypes are not yet loaded
		2202	Event->timer (
		2203	after => 10,
		2204	cb => sub {
		2205	$_[0]->w->cancel;
		2206
		2207	# provide some exits "home"
		2208	my $exit = cf::object::new "exit";
		2209
		2210	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2211	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2212	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2213
		2214	$LINK_MAP->insert ($exit->clone, 19, 19);
		2215	$LINK_MAP->insert ($exit->clone, 19, 20);
		2216	$LINK_MAP->insert ($exit->clone, 19, 21);
		2217	$LINK_MAP->insert ($exit->clone, 20, 19);
		2218	$LINK_MAP->insert ($exit->clone, 20, 21);
		2219	$LINK_MAP->insert ($exit->clone, 21, 19);
		2220	$LINK_MAP->insert ($exit->clone, 21, 20);
		2221	$LINK_MAP->insert ($exit->clone, 21, 21);
		2222
		2223	$exit->destroy;
		2224	});
		2225
		2226	$LINK_MAP->{deny_save} = 1;
		2227	$LINK_MAP->{deny_reset} = 1;
		2228
		2229	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1147	}	2230	}
1148		2231
1149	register "<global>", __PACKAGE__;	2232	register "<global>", __PACKAGE__;
1150		2233
1151	register_command "perl-reload" => sub {	2234	register_command "reload" => sub {
1152	my ($who, $arg) = @_;	2235	my ($who, $arg) = @_;
1153		2236
1154	if ($who->flag (FLAG_WIZ)) {	2237	if ($who->flag (FLAG_WIZ)) {
1155	_perl_reload {	2238	$who->message ("start of reload.");
1156	warn $_[0];	2239	reload;
1157	$who->message ($_[0]);	2240	$who->message ("end of reload.");
1158	};
1159	}	2241	}
1160	};	2242	};
1161		2243
1162	unshift @INC, $LIBDIR;	2244	unshift @INC, $LIBDIR;
1163		2245
1164	$TICK_WATCHER = Event->timer (	2246	$TICK_WATCHER = Event->timer (
		2247	reentrant => 0,
1165	prio => 0,	2248	prio => 0,
1166	at => $NEXT_TICK || 1,	2249	at => $NEXT_TICK || $TICK,
1167	data => WF_AUTOCANCEL,	2250	data => WF_AUTOCANCEL,
1168	cb => sub {	2251	cb => sub {
1169	cf::server_tick; # one server iteration	2252	cf::server_tick; # one server iteration
1170		2253	$RUNTIME += $TICK;
1171	my $NOW = Event::time;
1172	$NEXT_TICK += $TICK;	2254	$NEXT_TICK += $TICK;
1173		2255
1174	# if we are delayed by four ticks or more, skip them all	2256	# if we are delayed by four ticks or more, skip them all
1175	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2257	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1176		2258
1177	$TICK_WATCHER->at ($NEXT_TICK);	2259	$TICK_WATCHER->at ($NEXT_TICK);
1178	$TICK_WATCHER->start;	2260	$TICK_WATCHER->start;
1179	},	2261	},
1180	);	2262	);
1181		2263
1182	IO::AIO::max_poll_time $TICK * 0.2;	2264	IO::AIO::max_poll_time $TICK * 0.2;
1183		2265
		2266	Event->io (
1184	Event->io (fd => IO::AIO::poll_fileno,	2267	fd => IO::AIO::poll_fileno,
1185	poll => 'r',	2268	poll => 'r',
1186	prio => 5,	2269	prio => 5,
1187	data => WF_AUTOCANCEL,	2270	data => WF_AUTOCANCEL,
1188	cb => \&IO::AIO::poll_cb);	2271	cb => \&IO::AIO::poll_cb,
		2272	);
		2273
		2274	Event->timer (
		2275	data => WF_AUTOCANCEL,
		2276	after => 0,
		2277	interval => 10,
		2278	cb => sub {
		2279	(Coro::unblock_sub {
		2280	write_runtime
		2281	or warn "ERROR: unable to write runtime file: $!";
		2282	})->();
		2283	},
		2284	);
		2285
		2286	END { cf::emergency_save }
1189		2287
1190	1	2288	1
1191		2289

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines