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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.94 by root, Thu Dec 21 23:02:54 2006 UTC vs.
Revision 1.130 by root, Thu Jan 4 00:08:08 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 (2); # 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 %MAP; # all maps
		53	our $LINK_MAP; # the special {link} map
		54	our $FREEZE;
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO;
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($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
		77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
39		78
40	#############################################################################	79	#############################################################################
41		80
42	=head2 GLOBAL VARIABLES	81	=head2 GLOBAL VARIABLES
43		82
44	=over 4	83	=over 4
45		84
46	=item $cf::UPTIME	85	=item $cf::UPTIME
47		86
48	The timestamp of the server start (so not actually an uptime).	87	The timestamp of the server start (so not actually an uptime).
		88
		89	=item $cf::RUNTIME
		90
		91	The time this server has run, starts at 0 and is increased by $cf::TICK on
		92	every server tick.
49		93
50	=item $cf::LIBDIR	94	=item $cf::LIBDIR
51		95
52	The perl library directory, where extensions and cf-specific modules can	96	The perl library directory, where extensions and cf-specific modules can
53	be found. It will be added to C<@INC> automatically.	97	be found. It will be added to C<@INC> automatically.
		98
		99	=item $cf::NOW
		100
		101	The time of the last (current) server tick.
54		102
55	=item $cf::TICK	103	=item $cf::TICK
56		104
57	The interval between server ticks, in seconds.	105	The interval between server ticks, in seconds.
58		106
…		…
66	=cut	114	=cut
67		115
68	BEGIN {	116	BEGIN {
69	*CORE::GLOBAL::warn = sub {	117	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	118	my $msg = join "", @_;
		119	utf8::encode $msg;
		120
71	$msg .= "\n"	121	$msg .= "\n"
72	unless $msg =~ /\n$/;	122	unless $msg =~ /\n$/;
73		123
74	print STDERR "cfperl: $msg";
75	LOG llevError, "cfperl: $msg";	124	LOG llevError, "cfperl: $msg";
76	};	125	};
77	}	126	}
78		127
79	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
84	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
85		134
86	# we bless all objects into (empty) derived classes to force a method lookup	135	# we bless all objects into (empty) derived classes to force a method lookup
87	# within the Safe compartment.	136	# within the Safe compartment.
88	for my $pkg (qw(	137	for my $pkg (qw(
89	cf::global	138	cf::global cf::attachable
90	cf::object cf::object::player	139	cf::object cf::object::player
91	cf::client cf::player	140	cf::client cf::player
92	cf::arch cf::living	141	cf::arch cf::living
93	cf::map cf::party cf::region	142	cf::map cf::party cf::region
94	)) {	143	)) {
…		…
132	sub to_json($) {	181	sub to_json($) {
133	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
134	JSON::Syck::Dump $_[0]	183	JSON::Syck::Dump $_[0]
135	}	184	}
136		185
		186	=item my $guard = cf::guard { BLOCK }
		187
		188	Run the given callback when the guard object gets destroyed (useful for
		189	coroutine cancellations).
		190
		191	You can call C<< ->cancel >> on the guard object to stop the block from
		192	being executed.
		193
		194	=cut
		195
		196	sub guard(&) {
		197	bless \(my $cb = $_[0]), cf::guard::;
		198	}
		199
		200	sub cf::guard::cancel {
		201	${$_[0]} = sub { };
		202	}
		203
		204	sub cf::guard::DESTROY {
		205	${$_[0]}->();
		206	}
		207
		208	=item cf::lock_wait $string
		209
		210	Wait until the given lock is available. See cf::lock_acquire.
		211
		212	=item my $lock = cf::lock_acquire $string
		213
		214	Wait until the given lock is available and then acquires it and returns
		215	a guard object. If the guard object gets destroyed (goes out of scope,
		216	for example when the coroutine gets canceled), the lock is automatically
		217	returned.
		218
		219	Lock names should begin with a unique identifier (for example, find_map
		220	uses map_find and load_map uses map_load).
		221
		222	=cut
		223
		224	our %LOCK;
		225
		226	sub lock_wait($) {
		227	my ($key) = @_;
		228
		229	# wait for lock, if any
		230	while ($LOCK{$key}) {
		231	push @{ $LOCK{$key} }, $Coro::current;
		232	Coro::schedule;
		233	}
		234	}
		235
		236	sub lock_acquire($) {
		237	my ($key) = @_;
		238
		239	# wait, to be sure we are not locked
		240	lock_wait $key;
		241
		242	$LOCK{$key} = [];
		243
		244	cf::guard {
		245	# wake up all waiters, to be on the safe side
		246	$_->ready for @{ delete $LOCK{$key} };
		247	}
		248	}
		249
		250	=item cf::async { BLOCK }
		251
		252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
		253	error instead of exiting the server in case of a problem.
		254
		255	=cut
		256
		257	sub async(&) {
		258	my ($cb) = @_;
		259
		260	Coro::async {
		261	eval { $cb->() };
		262	warn $@ if $@;
		263	}
		264	}
		265
		266	=item cf::sync_job { BLOCK }
		267
		268	The design of crossfire+ requires that the main coro ($Coro::main) is
		269	always able to handle events or runnable, as crossfire+ is only partly
		270	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		271
		272	If it must be done, put the blocking parts into C<sync_job>. This will run
		273	the given BLOCK in another coroutine while waiting for the result. The
		274	server will be frozen during this time, so the block should either finish
		275	fast or be very important.
		276
		277	=cut
		278
		279	sub sync_job(&) {
		280	my ($job) = @_;
		281
		282	if ($Coro::current == $Coro::main) {
		283	# this is the main coro, too bad, we have to block
		284	# till the operation succeeds, freezing the server :/
		285
		286	# TODO: use suspend/resume instead
		287	# (but this is cancel-safe)
		288	local $FREEZE = 1;
		289
		290	my $busy = 1;
		291	my @res;
		292
		293	(Coro::async {
		294	@res = eval { $job->() };
		295	warn $@ if $@;
		296	undef $busy;
		297	})->prio (Coro::PRIO_MAX);
		298
		299	while ($busy) {
		300	Coro::cede_notself;
		301	Event::one_event unless Coro::nready;
		302	}
		303
		304	wantarray ? @res : $res[0]
		305	} else {
		306	# we are in another coroutine, how wonderful, everything just works
		307
		308	$job->()
		309	}
		310	}
		311
		312	=item $coro = cf::coro { BLOCK }
		313
		314	Creates and returns a new coro. This coro is automcatially being canceled
		315	when the extension calling this is being unloaded.
		316
		317	=cut
		318
		319	sub coro(&) {
		320	my $cb = shift;
		321
		322	my $coro = &cf::async ($cb);
		323
		324	$coro->on_destroy (sub {
		325	delete $EXT_CORO{$coro+0};
		326	});
		327	$EXT_CORO{$coro+0} = $coro;
		328
		329	$coro
		330	}
		331
		332	sub write_runtime {
		333	my $runtime = cf::localdir . "/runtime";
		334
		335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		336	or return;
		337
		338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		340	and return;
		341
		342	aio_fsync $fh
		343	and return;
		344
		345	close $fh
		346	or return;
		347
		348	aio_rename "$runtime~", $runtime
		349	and return;
		350
		351	1
		352	}
		353
137	=back	354	=back
138		355
139	=cut	356	=cut
		357
		358	#############################################################################
		359
		360	package cf::path;
		361
		362	sub new {
		363	my ($class, $path, $base) = @_;
		364
		365	$path = $path->as_string if ref $path;
		366
		367	my $self = bless { }, $class;
		368
		369	# {... are special paths that are not touched
		370	# ?xxx/... are special absolute paths
		371	# ?random/... random maps
		372	# /! non-realised random map exit
		373	# /... normal maps
		374	# ~/... per-player maps without a specific player (DO NOT USE)
		375	# ~user/... per-player map of a specific user
		376
		377	if ($path =~ /^{/) {
		378	# fine as it is
		379	} elsif ($path =~ s{^\?random/}{}) {
		380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		381	$self->{random} = cf::from_json $data;
		382	} else {
		383	if ($path =~ s{^~([^/]+)?}{}) {
		384	$self->{user_rel} = 1;
		385
		386	if (defined $1) {
		387	$self->{user} = $1;
		388	} elsif ($base =~ m{^~([^/]+)/}) {
		389	$self->{user} = $1;
		390	} else {
		391	warn "cannot resolve user-relative path without user <$path,$base>\n";
		392	}
		393	} elsif ($path =~ /^\//) {
		394	# already absolute
		395	} else {
		396	$base =~ s{[^/]+/?$}{};
		397	return $class->new ("$base/$path");
		398	}
		399
		400	for ($path) {
		401	redo if s{/\.?/}{/};
		402	redo if s{/[^/]+/\.\./}{/};
		403	}
		404	}
		405
		406	$self->{path} = $path;
		407
		408	$self
		409	}
		410
		411	# the name / primary key / in-game path
		412	sub as_string {
		413	my ($self) = @_;
		414
		415	$self->{user_rel} ? "~$self->{user}$self->{path}"
		416	: $self->{random} ? "?random/$self->{path}"
		417	: $self->{path}
		418	}
		419
		420	# the displayed name, this is a one way mapping
		421	sub visible_name {
		422	my ($self) = @_;
		423
		424	# if (my $rmp = $self->{random}) {
		425	# # todo: be more intelligent about this
		426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		427	# } else {
		428	$self->as_string
		429	# }
		430	}
		431
		432	# escape the /'s in the path
		433	sub _escaped_path {
		434	# ∕ is U+2215
		435	(my $path = $_[0]{path}) =~ s/\//∕/g;
		436	$path
		437	}
		438
		439	# the original (read-only) location
		440	sub load_path {
		441	my ($self) = @_;
		442
		443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		444	}
		445
		446	# the temporary/swap location
		447	sub save_path {
		448	my ($self) = @_;
		449
		450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		453	}
		454
		455	# the unique path, might be eq to save_path
		456	sub uniq_path {
		457	my ($self) = @_;
		458
		459	$self->{user_rel} || $self->{random}
		460	? undef
		461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		462	}
		463
		464	# return random map parameters, or undef
		465	sub random_map_params {
		466	my ($self) = @_;
		467
		468	$self->{random}
		469	}
		470
		471	# this is somewhat ugly, but style maps do need special treatment
		472	sub is_style_map {
		473	$_[0]{path} =~ m{^/styles/}
		474	}
		475
		476	package cf;
140		477
141	#############################################################################	478	#############################################################################
142		479
143	=head2 ATTACHABLE OBJECTS	480	=head2 ATTACHABLE OBJECTS
144		481
…		…
249	my ($self, $victim) = @_;	586	my ($self, $victim) = @_;
250	...	587	...
251	}	588	}
252	}	589	}
253		590
		591	=item $attachable->valid
		592
		593	Just because you have a perl object does not mean that the corresponding
		594	C-level object still exists. If you try to access an object that has no
		595	valid C counterpart anymore you get an exception at runtime. This method
		596	can be used to test for existence of the C object part without causing an
		597	exception.
		598
254	=cut	599	=cut
255		600
256	# the following variables are defined in .xs and must not be re-created	601	# the following variables are defined in .xs and must not be re-created
257	our @CB_GLOBAL = (); # registry for all global events	602	our @CB_GLOBAL = (); # registry for all global events
		603	our @CB_ATTACHABLE = (); # registry for all attachables
258	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	604	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
259	our @CB_PLAYER = ();	605	our @CB_PLAYER = ();
260	our @CB_CLIENT = ();	606	our @CB_CLIENT = ();
261	our @CB_TYPE = (); # registry for type (cf-object class) based events	607	our @CB_TYPE = (); # registry for type (cf-object class) based events
262	our @CB_MAP = ();	608	our @CB_MAP = ();
263		609
264	my %attachment;	610	my %attachment;
265		611
266	sub _attach_cb($$$$) {	612	sub _attach_cb($$$$) {
267	my ($registry, $event, $prio, $cb) = @_;	613	my ($registry, $event, $prio, $cb) = @_;
…		…
272		618
273	@{$registry->[$event]} = sort	619	@{$registry->[$event]} = sort
274	{ $a->[0] cmp $b->[0] }	620	{ $a->[0] cmp $b->[0] }
275	@{$registry->[$event] || []}, $cb;	621	@{$registry->[$event] || []}, $cb;
276	}	622	}
		623
		624	# hack
		625	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
277		626
278	# attach handles attaching event callbacks	627	# attach handles attaching event callbacks
279	# the only thing the caller has to do is pass the correct	628	# the only thing the caller has to do is pass the correct
280	# registry (== where the callback attaches to).	629	# registry (== where the callback attaches to).
281	sub _attach {	630	sub _attach {
…		…
283		632
284	my $object_type;	633	my $object_type;
285	my $prio = 0;	634	my $prio = 0;
286	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	635	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
287		636
		637	#TODO: get rid of this hack
		638	if ($attachable_klass{$klass}) {
		639	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		640	}
		641
288	while (@arg) {	642	while (@arg) {
289	my $type = shift @arg;	643	my $type = shift @arg;
290		644
291	if ($type eq "prio") {	645	if ($type eq "prio") {
292	$prio = shift @arg;	646	$prio = shift @arg;
…		…
367	my ($obj, $name) = @_;	721	my ($obj, $name) = @_;
368		722
369	exists $obj->{_attachment}{$name}	723	exists $obj->{_attachment}{$name}
370	}	724	}
371		725
372	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	726	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
373	eval "#line " . __LINE__ . " 'cf.pm'	727	eval "#line " . __LINE__ . " 'cf.pm'
374	sub cf::\L$klass\E::_attach_registry {	728	sub cf::\L$klass\E::_attach_registry {
375	(\\\@CB_$klass, KLASS_$klass)	729	(\\\@CB_$klass, KLASS_$klass)
376	}	730	}
377		731
…		…
413	}	767	}
414		768
415	0	769	0
416	}	770	}
417		771
418	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	772	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
419		773
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, ...)	774	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
425		775
426	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
427
428	Generate a global/object/player/map-specific event with the given arguments.	776	Generate an object-specific event with the given arguments.
429		777
430	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be	778	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	779	removed in future versions), and there is no public API to access override
432	results (if you must, access C<@cf::invoke_results> directly).	780	results (if you must, access C<@cf::invoke_results> directly).
433		781
434	=back	782	=back
435		783
436	=cut	784	=cut
437		785
438	#############################################################################	786	#############################################################################
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	787	# object support
460		788
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 {	789	sub reattach {
		790	# basically do the same as instantiate, without calling instantiate
475	my ($obj) = @_;	791	my ($obj) = @_;
		792
476	my $registry = $obj->registry;	793	my $registry = $obj->registry;
477		794
478	@$registry = ();	795	@$registry = ();
479		796
480	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	797	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
489	warn "object uses attachment '$name' that is not available, postponing.\n";	806	warn "object uses attachment '$name' that is not available, postponing.\n";
490	}	807	}
491	}	808	}
492	}	809	}
493		810
494	sub object_freezer_save {	811	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	$$rdata . Dumper $objs
531	}
532
533	sub object_thawer_load {
534	my ($filename) = @_;
535
536	local $/;
537
538	my $av;
539
540	#TODO: use sysread etc.
541	if (open my $data, "<:raw:perlio", $filename) {
542	$data = <$data>;
543	if (open my $pst, "<:raw:perlio", "$filename.pst") {
544	$av = eval { (Storable::thaw <$pst>)->{objs} };
545	}
546	return ($data, $av);
547	}
548
549	()
550	}
551
552	cf::object->attach (
553	prio => -1000000,	812	prio => -1000000,
		813	on_instantiate => sub {
		814	my ($obj, $data) = @_;
		815
		816	$data = from_json $data;
		817
		818	for (@$data) {
		819	my ($name, $args) = @$_;
		820
		821	$obj->attach ($name, %{$args || {} });
		822	}
		823	},
		824	on_reattach => \&reattach,
554	on_clone => sub {	825	on_clone => sub {
555	my ($src, $dst) = @_;	826	my ($src, $dst) = @_;
556		827
557	@{$dst->registry} = @{$src->registry};	828	@{$dst->registry} = @{$src->registry};
558		829
…		…
560		831
561	%{$dst->{_attachment}} = %{$src->{_attachment}}	832	%{$dst->{_attachment}} = %{$src->{_attachment}}
562	if exists $src->{_attachment};	833	if exists $src->{_attachment};
563	},	834	},
564	);	835	);
		836
		837	sub object_freezer_save {
		838	my ($filename, $rdata, $objs) = @_;
		839
		840	sync_job {
		841	if (length $$rdata) {
		842	warn sprintf "saving %s (%d,%d)\n",
		843	$filename, length $$rdata, scalar @$objs;
		844
		845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		846	chmod SAVE_MODE, $fh;
		847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		848	aio_fsync $fh;
		849	close $fh;
		850
		851	if (@$objs) {
		852	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		853	chmod SAVE_MODE, $fh;
		854	my $data = Storable::nfreeze { version => 1, objs => $objs };
		855	aio_write $fh, 0, (length $data), $data, 0;
		856	aio_fsync $fh;
		857	close $fh;
		858	aio_rename "$filename.pst~", "$filename.pst";
		859	}
		860	} else {
		861	aio_unlink "$filename.pst";
		862	}
		863
		864	aio_rename "$filename~", $filename;
		865	} else {
		866	warn "FATAL: $filename~: $!\n";
		867	}
		868	} else {
		869	aio_unlink $filename;
		870	aio_unlink "$filename.pst";
		871	}
		872	}
		873	}
		874
		875	sub object_freezer_as_string {
		876	my ($rdata, $objs) = @_;
		877
		878	use Data::Dumper;
		879
		880	$$rdata . Dumper $objs
		881	}
		882
		883	sub object_thawer_load {
		884	my ($filename) = @_;
		885
		886	my ($data, $av);
		887
		888	(aio_load $filename, $data) >= 0
		889	or return;
		890
		891	unless (aio_stat "$filename.pst") {
		892	(aio_load "$filename.pst", $av) >= 0
		893	or return;
		894	$av = eval { (Storable::thaw $av)->{objs} };
		895	}
		896
		897	warn sprintf "loading %s (%d)\n",
		898	$filename, length $data, scalar @{$av || []};#d#
		899	return ($data, $av);
		900	}
565		901
566	#############################################################################	902	#############################################################################
567	# command handling &c	903	# command handling &c
568		904
569	=item cf::register_command $name => \&callback($ob,$args);	905	=item cf::register_command $name => \&callback($ob,$args);
…		…
758		1094
759	=head2 CORE EXTENSIONS	1095	=head2 CORE EXTENSIONS
760		1096
761	Functions and methods that extend core crossfire objects.	1097	Functions and methods that extend core crossfire objects.
762		1098
		1099	=head3 cf::player
		1100
763	=over 4	1101	=over 4
764		1102
765	=item cf::player::exists $login	1103	=item cf::player::exists $login
766		1104
767	Returns true when the given account exists.	1105	Returns true when the given account exists.
…		…
771	sub cf::player::exists($) {	1109	sub cf::player::exists($) {
772	cf::player::find $_[0]	1110	cf::player::find $_[0]
773	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
774	}	1112	}
775		1113
		1114	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1115
		1116	Sends an ext reply to the player.
		1117
		1118	=cut
		1119
		1120	sub cf::player::ext_reply($$$%) {
		1121	my ($self, $id, %msg) = @_;
		1122
		1123	$msg{msgid} = $id;
		1124
		1125	$self->send ("ext " . to_json \%msg);
		1126	}
		1127
		1128	=back
		1129
		1130
		1131	=head3 cf::map
		1132
		1133	=over 4
		1134
		1135	=cut
		1136
		1137	package cf::map;
		1138
		1139	use Fcntl;
		1140	use Coro::AIO;
		1141
		1142	our $MAX_RESET = 7200;
		1143	our $DEFAULT_RESET = 3600;
		1144
		1145	sub generate_random_map {
		1146	my ($path, $rmp) = @_;
		1147
		1148	# mit "rum" bekleckern, nicht
		1149	cf::map::_create_random_map
		1150	$path,
		1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1154	$rmp->{exit_on_final_map},
		1155	$rmp->{xsize}, $rmp->{ysize},
		1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1161	(cf::region::find $rmp->{region})
		1162	}
		1163
		1164	# and all this just because we cannot iterate over
		1165	# all maps in C++...
		1166	sub change_all_map_light {
		1167	my ($change) = @_;
		1168
		1169	$_->change_map_light ($change)
		1170	for grep $_->outdoor, values %cf::MAP;
		1171	}
		1172
		1173	sub try_load_header($) {
		1174	my ($path) = @_;
		1175
		1176	utf8::encode $path;
		1177	aio_open $path, O_RDONLY, 0
		1178	or return;
		1179
		1180	my $map = cf::map::new
		1181	or return;
		1182
		1183	$map->load_header ($path)
		1184	or return;
		1185
		1186	$map->{load_path} = $path;
		1187
		1188	$map
		1189	}
		1190
		1191	sub find_map;
		1192	sub find_map {
		1193	my ($path, $origin) = @_;
		1194
		1195	#warn "find_map<$path,$origin>\n";#d#
		1196
		1197	$path = new cf::path $path, $origin && $origin->path;
		1198	my $key = $path->as_string;
		1199
		1200	cf::lock_wait "map_find:$key";
		1201
		1202	$cf::MAP{$key} || do {
		1203	my $guard = cf::lock_acquire "map_find:$key";
		1204
		1205	# do it the slow way
		1206	my $map = try_load_header $path->save_path;
		1207
		1208	if ($map) {
		1209	# safety
		1210	$map->{instantiate_time} = $cf::RUNTIME
		1211	if $map->{instantiate_time} > $cf::RUNTIME;
		1212	} else {
		1213	if (my $rmp = $path->random_map_params) {
		1214	$map = generate_random_map $key, $rmp;
		1215	} else {
		1216	$map = try_load_header $path->load_path;
		1217	}
		1218
		1219	$map or return;
		1220
		1221	$map->{load_original} = 1;
		1222	$map->{instantiate_time} = $cf::RUNTIME;
		1223	$map->instantiate;
		1224
		1225	# per-player maps become, after loading, normal maps
		1226	$map->per_player (0) if $path->{user_rel};
		1227	}
		1228
		1229	$map->path ($key);
		1230	$map->{path} = $path;
		1231	$map->{last_save} = $cf::RUNTIME;
		1232	$map->last_access ($cf::RUNTIME);
		1233
		1234	if ($map->should_reset) {
		1235	$map->reset;
		1236	undef $guard;
		1237	$map = find_map $path
		1238	or return;
		1239	}
		1240
		1241	$cf::MAP{$key} = $map
		1242	}
		1243	}
		1244
		1245	sub load {
		1246	my ($self) = @_;
		1247
		1248	my $path = $self->{path};
		1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1250
		1251	return if $self->in_memory != cf::MAP_SWAPPED;
		1252
		1253	$self->in_memory (cf::MAP_LOADING);
		1254
		1255	$self->alloc;
		1256	$self->load_objects ($self->{load_path}, 1)
		1257	or return;
		1258
		1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1260	if delete $self->{load_original};
		1261
		1262	if (my $uniq = $path->uniq_path) {
		1263	utf8::encode $uniq;
		1264	if (aio_open $uniq, O_RDONLY, 0) {
		1265	$self->clear_unique_items;
		1266	$self->load_objects ($uniq, 0);
		1267	}
		1268	}
		1269
		1270	# now do the right thing for maps
		1271	$self->link_multipart_objects;
		1272
		1273	if ($self->{path}->is_style_map) {
		1274	$self->{deny_save} = 1;
		1275	$self->{deny_reset} = 1;
		1276	} else {
		1277	$self->fix_auto_apply;
		1278	$self->decay_objects;
		1279	$self->update_buttons;
		1280	$self->set_darkness_map;
		1281	$self->difficulty ($self->estimate_difficulty)
		1282	unless $self->difficulty;
		1283	$self->activate;
		1284	}
		1285
		1286	$self->in_memory (cf::MAP_IN_MEMORY);
		1287	}
		1288
		1289	sub load_map_sync {
		1290	my ($path, $origin) = @_;
		1291
		1292	#warn "load_map_sync<$path, $origin>\n";#d#
		1293
		1294	cf::sync_job {
		1295	my $map = cf::map::find_map $path, $origin
		1296	or return;
		1297	$map->load;
		1298	$map
		1299	}
		1300	}
		1301
		1302	sub save {
		1303	my ($self) = @_;
		1304
		1305	$self->{last_save} = $cf::RUNTIME;
		1306
		1307	return unless $self->dirty;
		1308
		1309	my $save = $self->{path}->save_path; utf8::encode $save;
		1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1311
		1312	$self->{load_path} = $save;
		1313
		1314	return if $self->{deny_save};
		1315
		1316	if ($uniq) {
		1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1318	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1319	} else {
		1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1321	}
		1322	}
		1323
		1324	sub swap_out {
		1325	my ($self) = @_;
		1326
		1327	# save first because save cedes
		1328	$self->save;
		1329
		1330	return if $self->players;
		1331	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1332	return if $self->{deny_save};
		1333
		1334	$self->clear;
		1335	$self->in_memory (cf::MAP_SWAPPED);
		1336	}
		1337
		1338	sub reset_at {
		1339	my ($self) = @_;
		1340
		1341	# TODO: safety, remove and allow resettable per-player maps
		1342	return 1e99 if $self->{path}{user_rel};
		1343	return 1e99 if $self->{deny_reset};
		1344
		1345	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1346	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1347
		1348	$time + $to
		1349	}
		1350
		1351	sub should_reset {
		1352	my ($self) = @_;
		1353
		1354	$self->reset_at <= $cf::RUNTIME
		1355	}
		1356
		1357	sub unlink_save {
		1358	my ($self) = @_;
		1359
		1360	utf8::encode (my $save = $self->{path}->save_path);
		1361	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1362	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1363	}
		1364
		1365	sub rename {
		1366	my ($self, $new_path) = @_;
		1367
		1368	$self->unlink_save;
		1369
		1370	delete $cf::MAP{$self->path};
		1371	$self->{path} = new cf::path $new_path;
		1372	$self->path ($self->{path}->as_string);
		1373	$cf::MAP{$self->path} = $self;
		1374
		1375	$self->save;
		1376	}
		1377
		1378	sub reset {
		1379	my ($self) = @_;
		1380
		1381	return if $self->players;
		1382	return if $self->{path}{user_rel};#d#
		1383
		1384	warn "resetting map ", $self->path;#d#
		1385
		1386	delete $cf::MAP{$self->path};
		1387
		1388	$_->clear_links_to ($self) for values %cf::MAP;
		1389
		1390	$self->unlink_save;
		1391	$self->destroy;
		1392	}
		1393
		1394	my $nuke_counter = "aaaa";
		1395
		1396	sub nuke {
		1397	my ($self) = @_;
		1398
		1399	$self->{deny_save} = 1;
		1400	$self->reset_timeout (1);
		1401	$self->rename ("{nuke}/" . ($nuke_counter++));
		1402	$self->reset; # polite request, might not happen
		1403	}
		1404
		1405	sub customise_for {
		1406	my ($map, $ob) = @_;
		1407
		1408	if ($map->per_player) {
		1409	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1410	}
		1411
		1412	$map
		1413	}
		1414
		1415	sub emergency_save {
		1416	local $cf::FREEZE = 1;
		1417
		1418	warn "enter emergency map save\n";
		1419
		1420	cf::sync_job {
		1421	warn "begin emergency map save\n";
		1422	$_->save for values %cf::MAP;
		1423	};
		1424
		1425	warn "end emergency map save\n";
		1426	}
		1427
		1428	package cf;
		1429
		1430	=back
		1431
		1432
		1433	=head3 cf::object::player
		1434
		1435	=over 4
		1436
776	=item $player_object->reply ($npc, $msg[, $flags])	1437	=item $player_object->reply ($npc, $msg[, $flags])
777		1438
778	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1439	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	1440	can be C<undef>. Does the right thing when the player is currently in a
780	dialogue with the given NPC character.	1441	dialogue with the given NPC character.
781		1442
782	=cut	1443	=cut
783		1444
784	# rough implementation of a future "reply" method that works	1445	# rough implementation of a future "reply" method that works
785	# with dialog boxes.	1446	# with dialog boxes.
		1447	#TODO: the first argument must go, split into a $npc->reply_to ( method
786	sub cf::object::player::reply($$$;$) {	1448	sub cf::object::player::reply($$$;$) {
787	my ($self, $npc, $msg, $flags) = @_;	1449	my ($self, $npc, $msg, $flags) = @_;
788		1450
789	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
790		1452
…		…
794	$msg = $npc->name . " says: $msg" if $npc;	1456	$msg = $npc->name . " says: $msg" if $npc;
795	$self->message ($msg, $flags);	1457	$self->message ($msg, $flags);
796	}	1458	}
797	}	1459	}
798		1460
799	=item $player->ext_reply ($msgid, $msgtype, %msg)
800
801	Sends an ext reply to the player.
802
803	=cut
804
805	sub cf::player::ext_reply($$$%) {
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")	1461	=item $player_object->may ("access")
814		1462
815	Returns wether the given player is authorized to access resource "access"	1463	Returns wether the given player is authorized to access resource "access"
816	(e.g. "command_wizcast").	1464	(e.g. "command_wizcast").
817		1465
…		…
824	(ref $cf::CFG{"may_$access"}	1472	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1473	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	1474	: $cf::CFG{"may_$access"})
827	}	1475	}
828		1476
829	=cut	1477	=item $player_object->enter_link
830		1478
831	#############################################################################	1479	Freezes the player and moves him/her to a special map (C<{link}>).
		1480
		1481	The player should be reaosnably safe there for short amounts of time. You
		1482	I<MUST> call C<leave_link> as soon as possible, though.
		1483
		1484	=item $player_object->leave_link ($map, $x, $y)
		1485
		1486	Moves the player out of the specila link map onto the given map. If the
		1487	map is not valid (or omitted), the player will be moved back to the
		1488	location he/she was before the call to C<enter_link>, or, if that fails,
		1489	to the emergency map position.
		1490
		1491	Might block.
		1492
		1493	=cut
		1494
		1495	sub cf::object::player::enter_link {
		1496	my ($self) = @_;
		1497
		1498	$self->deactivate_recursive;
		1499
		1500	return if $self->map == $LINK_MAP;
		1501
		1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1503	if $self->map;
		1504
		1505	$self->enter_map ($LINK_MAP, 20, 20);
		1506	}
		1507
		1508	sub cf::object::player::leave_link {
		1509	my ($self, $map, $x, $y) = @_;
		1510
		1511	my $link_pos = delete $self->{_link_pos};
		1512
		1513	unless ($map) {
		1514	# restore original map position
		1515	($map, $x, $y) = @{ $link_pos || [] };
		1516	$map = cf::map::find_map $map;
		1517
		1518	unless ($map) {
		1519	($map, $x, $y) = @$EMERGENCY_POSITION;
		1520	$map = cf::map::find_map $map
		1521	or die "FATAL: cannot load emergency map\n";
		1522	}
		1523	}
		1524
		1525	($x, $y) = (-1, -1)
		1526	unless (defined $x) && (defined $y);
		1527
		1528	# use -1 or undef as default coordinates, not 0, 0
		1529	($x, $y) = ($map->enter_x, $map->enter_y)
		1530	if $x <=0 && $y <= 0;
		1531
		1532	$map->load;
		1533
		1534	$self->activate_recursive;
		1535	$self->enter_map ($map, $x, $y);
		1536	}
		1537
		1538	cf::player->attach (
		1539	on_logout => sub {
		1540	my ($pl) = @_;
		1541
		1542	# abort map switching before logout
		1543	if ($pl->ob->{_link_pos}) {
		1544	cf::sync_job {
		1545	$pl->ob->leave_link
		1546	};
		1547	}
		1548	},
		1549	on_login => sub {
		1550	my ($pl) = @_;
		1551
		1552	# try to abort aborted map switching on player login :)
		1553	# should happen only on crashes
		1554	if ($pl->ob->{_link_pos}) {
		1555	$pl->ob->enter_link;
		1556	cf::async {
		1557	# we need this sleep as the login has a concurrent enter_exit running
		1558	# and this sleep increases chances of the player not ending up in scorn
		1559	Coro::Timer::sleep 1;
		1560	$pl->ob->leave_link;
		1561	};
		1562	}
		1563	},
		1564	);
		1565
		1566	=item $player_object->goto_map ($path, $x, $y)
		1567
		1568	=cut
		1569
		1570	sub cf::object::player::goto_map {
		1571	my ($self, $path, $x, $y) = @_;
		1572
		1573	$self->enter_link;
		1574
		1575	(cf::async {
		1576	$path = new cf::path $path;
		1577
		1578	my $map = cf::map::find_map $path->as_string;
		1579	$map = $map->customise_for ($self) if $map;
		1580
		1581	# warn "entering ", $map->path, " at ($x, $y)\n"
		1582	# if $map;
		1583
		1584	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1585
		1586	$self->leave_link ($map, $x, $y);
		1587	})->prio (1);
		1588	}
		1589
		1590	=item $player_object->enter_exit ($exit_object)
		1591
		1592	=cut
		1593
		1594	sub parse_random_map_params {
		1595	my ($spec) = @_;
		1596
		1597	my $rmp = { # defaults
		1598	xsize => 10,
		1599	ysize => 10,
		1600	};
		1601
		1602	for (split /\n/, $spec) {
		1603	my ($k, $v) = split /\s+/, $_, 2;
		1604
		1605	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1606	}
		1607
		1608	$rmp
		1609	}
		1610
		1611	sub prepare_random_map {
		1612	my ($exit) = @_;
		1613
		1614	# all this does is basically replace the /! path by
		1615	# a new random map path (?random/...) with a seed
		1616	# that depends on the exit object
		1617
		1618	my $rmp = parse_random_map_params $exit->msg;
		1619
		1620	if ($exit->map) {
		1621	$rmp->{region} = $exit->map->region_name;
		1622	$rmp->{origin_map} = $exit->map->path;
		1623	$rmp->{origin_x} = $exit->x;
		1624	$rmp->{origin_y} = $exit->y;
		1625	}
		1626
		1627	$rmp->{random_seed} ||= $exit->random_seed;
		1628
		1629	my $data = cf::to_json $rmp;
		1630	my $md5 = Digest::MD5::md5_hex $data;
		1631
		1632	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1633	aio_write $fh, 0, (length $data), $data, 0;
		1634
		1635	$exit->slaying ("?random/$md5");
		1636	$exit->msg (undef);
		1637	}
		1638	}
		1639
		1640	sub cf::object::player::enter_exit {
		1641	my ($self, $exit) = @_;
		1642
		1643	return unless $self->type == cf::PLAYER;
		1644
		1645	$self->enter_link;
		1646
		1647	(cf::async {
		1648	unless (eval {
		1649	prepare_random_map $exit
		1650	if $exit->slaying eq "/!";
		1651
		1652	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1653	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1654
		1655	1;
		1656	}) {
		1657	$self->message ("Something went wrong deep within the crossfire server. "
		1658	. "I'll try to bring you back to the map you were before. "
		1659	. "Please report this to the dungeon master",
		1660	cf::NDI_UNIQUE | cf::NDI_RED);
		1661
		1662	warn "ERROR in enter_exit: $@";
		1663	$self->leave_link;
		1664	}
		1665	})->prio (1);
		1666	}
		1667
		1668	=head3 cf::client
		1669
		1670	=over 4
		1671
		1672	=item $client->send_drawinfo ($text, $flags)
		1673
		1674	Sends a drawinfo packet to the client. Circumvents output buffering so
		1675	should not be used under normal circumstances.
		1676
		1677	=cut
		1678
		1679	sub cf::client::send_drawinfo {
		1680	my ($self, $text, $flags) = @_;
		1681
		1682	utf8::encode $text;
		1683	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1684	}
		1685
		1686
		1687	=item $success = $client->query ($flags, "text", \&cb)
		1688
		1689	Queues a query to the client, calling the given callback with
		1690	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1691	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1692
		1693	Queries can fail, so check the return code. Or don't, as queries will become
		1694	reliable at some point in the future.
		1695
		1696	=cut
		1697
		1698	sub cf::client::query {
		1699	my ($self, $flags, $text, $cb) = @_;
		1700
		1701	return unless $self->state == ST_PLAYING
		1702	|| $self->state == ST_SETUP
		1703	|| $self->state == ST_CUSTOM;
		1704
		1705	$self->state (ST_CUSTOM);
		1706
		1707	utf8::encode $text;
		1708	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1709
		1710	$self->send_packet ($self->{query_queue}[0][0])
		1711	if @{ $self->{query_queue} } == 1;
		1712	}
		1713
		1714	cf::client->attach (
		1715	on_reply => sub {
		1716	my ($ns, $msg) = @_;
		1717
		1718	# this weird shuffling is so that direct followup queries
		1719	# get handled first
		1720	my $queue = delete $ns->{query_queue}
		1721	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1722
		1723	(shift @$queue)->[1]->($msg);
		1724
		1725	push @{ $ns->{query_queue} }, @$queue;
		1726
		1727	if (@{ $ns->{query_queue} } == @$queue) {
		1728	if (@$queue) {
		1729	$ns->send_packet ($ns->{query_queue}[0][0]);
		1730	} else {
		1731	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1732	}
		1733	}
		1734	},
		1735	);
		1736
		1737	=item $client->coro (\&cb)
		1738
		1739	Create a new coroutine, running the specified callback. The coroutine will
		1740	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1741	or loss of connection).
		1742
		1743	=cut
		1744
		1745	sub cf::client::coro {
		1746	my ($self, $cb) = @_;
		1747
		1748	my $coro = &cf::async ($cb);
		1749
		1750	$coro->on_destroy (sub {
		1751	delete $self->{_coro}{$coro+0};
		1752	});
		1753
		1754	$self->{_coro}{$coro+0} = $coro;
		1755
		1756	$coro
		1757	}
		1758
		1759	cf::client->attach (
		1760	on_destroy => sub {
		1761	my ($ns) = @_;
		1762
		1763	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1764	},
		1765	);
		1766
		1767	=back
		1768
832		1769
833	=head2 SAFE SCRIPTING	1770	=head2 SAFE SCRIPTING
834		1771
835	Functions that provide a safe environment to compile and execute	1772	Functions that provide a safe environment to compile and execute
836	snippets of perl code without them endangering the safety of the server	1773	snippets of perl code without them endangering the safety of the server
…		…
988		1925
989	{	1926	{
990	my $path = cf::localdir . "/database.pst";	1927	my $path = cf::localdir . "/database.pst";
991		1928
992	sub db_load() {	1929	sub db_load() {
993	warn "loading database $path\n";#d# remove later
994	$DB = stat $path ? Storable::retrieve $path : { };	1930	$DB = stat $path ? Storable::retrieve $path : { };
995	}	1931	}
996		1932
997	my $pid;	1933	my $pid;
998		1934
999	sub db_save() {	1935	sub db_save() {
1000	warn "saving database $path\n";#d# remove later
1001	waitpid $pid, 0 if $pid;	1936	waitpid $pid, 0 if $pid;
1002	if (0 == ($pid = fork)) {	1937	if (0 == ($pid = fork)) {
1003	$DB->{_meta}{version} = 1;	1938	$DB->{_meta}{version} = 1;
1004	Storable::nstore $DB, "$path~";	1939	Storable::nstore $DB, "$path~";
1005	rename "$path~", $path;	1940	rename "$path~", $path;
…		…
1056	local $/;	1991	local $/;
1057	*CFG = YAML::Syck::Load <$fh>;	1992	*CFG = YAML::Syck::Load <$fh>;
1058	}	1993	}
1059		1994
1060	sub main {	1995	sub main {
		1996	# we must not ever block the main coroutine
		1997	local $Coro::idle = sub {
		1998	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		1999	(Coro::unblock_sub {
		2000	Event::one_event;
		2001	})->();
		2002	};
		2003
1061	cfg_load;	2004	cfg_load;
1062	db_load;	2005	db_load;
1063	load_extensions;	2006	load_extensions;
1064	Event::loop;	2007	Event::loop;
1065	}	2008	}
1066		2009
1067	#############################################################################	2010	#############################################################################
1068	# initialisation	2011	# initialisation
1069		2012
1070	sub _perl_reload(&) {	2013	sub reload() {
1071	my ($msg) = @_;	2014	# can/must only be called in main
		2015	if ($Coro::current != $Coro::main) {
		2016	warn "can only reload from main coroutine\n";
		2017	return;
		2018	}
1072		2019
1073	$msg->("reloading...");	2020	warn "reloading...";
		2021
		2022	local $FREEZE = 1;
		2023	cf::emergency_save;
1074		2024
1075	eval {	2025	eval {
		2026	# if anything goes wrong in here, we should simply crash as we already saved
		2027
1076	# cancel all watchers	2028	# cancel all watchers
1077	for (Event::all_watchers) {	2029	for (Event::all_watchers) {
1078	$_->cancel if $_->data & WF_AUTOCANCEL;	2030	$_->cancel if $_->data & WF_AUTOCANCEL;
1079	}	2031	}
1080		2032
		2033	# cancel all extension coros
		2034	$_->cancel for values %EXT_CORO;
		2035	%EXT_CORO = ();
		2036
1081	# unload all extensions	2037	# unload all extensions
1082	for (@exts) {	2038	for (@exts) {
1083	$msg->("unloading <$_>");	2039	warn "unloading <$_>";
1084	unload_extension $_;	2040	unload_extension $_;
1085	}	2041	}
1086		2042
1087	# unload all modules loaded from $LIBDIR	2043	# unload all modules loaded from $LIBDIR
1088	while (my ($k, $v) = each %INC) {	2044	while (my ($k, $v) = each %INC) {
1089	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2045	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1090		2046
1091	$msg->("removing <$k>");	2047	warn "removing <$k>";
1092	delete $INC{$k};	2048	delete $INC{$k};
1093		2049
1094	$k =~ s/\.pm$//;	2050	$k =~ s/\.pm$//;
1095	$k =~ s/\//::/g;	2051	$k =~ s/\//::/g;
1096		2052
…		…
1101	Symbol::delete_package $k;	2057	Symbol::delete_package $k;
1102	}	2058	}
1103		2059
1104	# sync database to disk	2060	# sync database to disk
1105	cf::db_sync;	2061	cf::db_sync;
		2062	IO::AIO::flush;
1106		2063
1107	# get rid of safe::, as good as possible	2064	# get rid of safe::, as good as possible
1108	Symbol::delete_package "safe::$_"	2065	Symbol::delete_package "safe::$_"
1109	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2066	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1110		2067
1111	# remove register_script_function callbacks	2068	# remove register_script_function callbacks
1112	# TODO	2069	# TODO
1113		2070
1114	# unload cf.pm "a bit"	2071	# unload cf.pm "a bit"
…		…
1117	# don't, removes xs symbols, too,	2074	# don't, removes xs symbols, too,
1118	# and global variables created in xs	2075	# and global variables created in xs
1119	#Symbol::delete_package __PACKAGE__;	2076	#Symbol::delete_package __PACKAGE__;
1120		2077
1121	# reload cf.pm	2078	# reload cf.pm
1122	$msg->("reloading cf.pm");	2079	warn "reloading cf.pm";
1123	require cf;	2080	require cf;
		2081	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1124		2082
1125	# load config and database again	2083	# load config and database again
1126	cf::cfg_load;	2084	cf::cfg_load;
1127	cf::db_load;	2085	cf::db_load;
1128		2086
1129	# load extensions	2087	# load extensions
1130	$msg->("load extensions");	2088	warn "load extensions";
1131	cf::load_extensions;	2089	cf::load_extensions;
1132		2090
1133	# reattach attachments to objects	2091	# reattach attachments to objects
1134	$msg->("reattach");	2092	warn "reattach";
1135	_global_reattach;	2093	_global_reattach;
1136	};	2094	};
1137	$msg->($@) if $@;
1138		2095
1139	$msg->("reloaded");	2096	if ($@) {
		2097	warn $@;
		2098	warn "error while reloading, exiting.";
		2099	exit 1;
		2100	}
		2101
		2102	warn "reloaded successfully";
1140	};	2103	};
1141		2104
1142	sub perl_reload() {	2105	#############################################################################
1143	_perl_reload {	2106
1144	warn $_[0];	2107	unless ($LINK_MAP) {
1145	print "$_[0]\n";	2108	$LINK_MAP = cf::map::new;
1146	};	2109
		2110	$LINK_MAP->width (41);
		2111	$LINK_MAP->height (41);
		2112	$LINK_MAP->alloc;
		2113	$LINK_MAP->path ("{link}");
		2114	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2115	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2116
		2117	# dirty hack because... archetypes are not yet loaded
		2118	Event->timer (
		2119	after => 2,
		2120	cb => sub {
		2121	$_[0]->w->cancel;
		2122
		2123	# provide some exits "home"
		2124	my $exit = cf::object::new "exit";
		2125
		2126	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2127	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2128	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2129
		2130	$LINK_MAP->insert ($exit->clone, 19, 19);
		2131	$LINK_MAP->insert ($exit->clone, 19, 20);
		2132	$LINK_MAP->insert ($exit->clone, 19, 21);
		2133	$LINK_MAP->insert ($exit->clone, 20, 19);
		2134	$LINK_MAP->insert ($exit->clone, 20, 21);
		2135	$LINK_MAP->insert ($exit->clone, 21, 19);
		2136	$LINK_MAP->insert ($exit->clone, 21, 20);
		2137	$LINK_MAP->insert ($exit->clone, 21, 21);
		2138
		2139	$exit->destroy;
		2140	});
		2141
		2142	$LINK_MAP->{deny_save} = 1;
		2143	$LINK_MAP->{deny_reset} = 1;
		2144
		2145	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1147	}	2146	}
1148		2147
1149	register "<global>", __PACKAGE__;	2148	register "<global>", __PACKAGE__;
1150		2149
1151	register_command "perl-reload" => sub {	2150	register_command "reload" => sub {
1152	my ($who, $arg) = @_;	2151	my ($who, $arg) = @_;
1153		2152
1154	if ($who->flag (FLAG_WIZ)) {	2153	if ($who->flag (FLAG_WIZ)) {
1155	_perl_reload {	2154	$who->message ("start of reload.");
1156	warn $_[0];	2155	reload;
1157	$who->message ($_[0]);	2156	$who->message ("end of reload.");
1158	};
1159	}	2157	}
1160	};	2158	};
1161		2159
1162	unshift @INC, $LIBDIR;	2160	unshift @INC, $LIBDIR;
1163		2161
1164	$TICK_WATCHER = Event->timer (	2162	$TICK_WATCHER = Event->timer (
		2163	reentrant => 0,
1165	prio => 0,	2164	prio => 0,
1166	at => $NEXT_TICK || 1,	2165	at => $NEXT_TICK || $TICK,
1167	data => WF_AUTOCANCEL,	2166	data => WF_AUTOCANCEL,
1168	cb => sub {	2167	cb => sub {
		2168	unless ($FREEZE) {
1169	cf::server_tick; # one server iteration	2169	cf::server_tick; # one server iteration
		2170	$RUNTIME += $TICK;
		2171	}
1170		2172
1171	my $NOW = Event::time;
1172	$NEXT_TICK += $TICK;	2173	$NEXT_TICK += $TICK;
1173		2174
1174	# if we are delayed by four ticks or more, skip them all	2175	# if we are delayed by four ticks or more, skip them all
1175	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2176	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1176		2177
1177	$TICK_WATCHER->at ($NEXT_TICK);	2178	$TICK_WATCHER->at ($NEXT_TICK);
1178	$TICK_WATCHER->start;	2179	$TICK_WATCHER->start;
1179	},	2180	},
1180	);	2181	);
1181		2182
1182	IO::AIO::max_poll_time $TICK * 0.2;	2183	IO::AIO::max_poll_time $TICK * 0.2;
1183		2184
		2185	Event->io (
1184	Event->io (fd => IO::AIO::poll_fileno,	2186	fd => IO::AIO::poll_fileno,
1185	poll => 'r',	2187	poll => 'r',
1186	prio => 5,	2188	prio => 5,
1187	data => WF_AUTOCANCEL,	2189	data => WF_AUTOCANCEL,
1188	cb => \&IO::AIO::poll_cb);	2190	cb => \&IO::AIO::poll_cb,
		2191	);
		2192
		2193	Event->timer (
		2194	data => WF_AUTOCANCEL,
		2195	after => 0,
		2196	interval => 10,
		2197	cb => sub {
		2198	(Coro::unblock_sub {
		2199	write_runtime
		2200	or warn "ERROR: unable to write runtime file: $!";
		2201	})->();
		2202	},
		2203	);
		2204
		2205	END { cf::emergency_save }
1189		2206
1190	1	2207	1
1191		2208

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