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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 1.116 by root, Mon Jan 1 17:30:34 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 $_[0]
135	}	184	}
136		185
		186	=item cf::sync_job { BLOCK }
		187
		188	The design of crossfire+ requires that the main coro ($Coro::main) is
		189	always able to handle events or runnable, as crossfire+ is only partly
		190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		191
		192	If it must be done, put the blocking parts into C<sync_job>. This will run
		193	the given BLOCK in another coroutine while waiting for the result. The
		194	server will be frozen during this time, so the block should either finish
		195	fast or be very important.
		196
		197	=cut
		198
		199	sub sync_job(&) {
		200	my ($job) = @_;
		201
		202	if ($Coro::current == $Coro::main) {
		203	# this is the main coro, too bad, we have to block
		204	# till the operation succeeds, freezing the server :/
		205
		206	# TODO: use suspend/resume instead
		207	# (but this is cancel-safe)
		208	local $FREEZE = 1;
		209
		210	my $busy = 1;
		211	my @res;
		212
		213	(Coro::async {
		214	@res = eval { $job->() };
		215	warn $@ if $@;
		216	undef $busy;
		217	})->prio (Coro::PRIO_MAX);
		218
		219	while ($busy) {
		220	Coro::cede_notself;
		221	Event::one_event unless Coro::nready;
		222	}
		223
		224	wantarray ? @res : $res[0]
		225	} else {
		226	# we are in another coroutine, how wonderful, everything just works
		227
		228	$job->()
		229	}
		230	}
		231
		232	=item $coro = cf::coro { BLOCK }
		233
		234	Creates and returns a new coro. This coro is automcatially being canceled
		235	when the extension calling this is being unloaded.
		236
		237	=cut
		238
		239	sub coro(&) {
		240	my $cb = shift;
		241
		242	my $coro; $coro = async {
		243	eval {
		244	$cb->();
		245	};
		246	warn $@ if $@;
		247	};
		248
		249	$coro->on_destroy (sub {
		250	delete $EXT_CORO{$coro+0};
		251	});
		252	$EXT_CORO{$coro+0} = $coro;
		253
		254	$coro
		255	}
		256
		257	sub write_runtime {
		258	my $runtime = cf::localdir . "/runtime";
		259
		260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		261	or return;
		262
		263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		265	and return;
		266
		267	aio_fsync $fh
		268	and return;
		269
		270	close $fh
		271	or return;
		272
		273	aio_rename "$runtime~", $runtime
		274	and return;
		275
		276	1
		277	}
		278
137	=back	279	=back
138		280
139	=cut	281	=cut
		282
		283	#############################################################################
		284
		285	package cf::path;
		286
		287	sub new {
		288	my ($class, $path, $base) = @_;
		289
		290	$path = $path->as_string if ref $path;
		291
		292	my $self = bless { }, $class;
		293
		294	# {... are special paths that are not touched
		295	# ?xxx/... are special absolute paths
		296	# ?random/... random maps
		297	# /! non-realised random map exit
		298	# /... normal maps
		299	# ~/... per-player maps without a specific player (DO NOT USE)
		300	# ~user/... per-player map of a specific user
		301
		302	if ($path =~ /^{/) {
		303	# fine as it is
		304	} elsif ($path =~ s{^\?random/}{}) {
		305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		306	$self->{random} = cf::from_json $data;
		307	} else {
		308	if ($path =~ s{^~([^/]+)?}{}) {
		309	$self->{user_rel} = 1;
		310
		311	if (defined $1) {
		312	$self->{user} = $1;
		313	} elsif ($base =~ m{^~([^/]+)/}) {
		314	$self->{user} = $1;
		315	} else {
		316	warn "cannot resolve user-relative path without user <$path,$base>\n";
		317	}
		318	} elsif ($path =~ /^\//) {
		319	# already absolute
		320	} else {
		321	$base =~ s{[^/]+/?$}{};
		322	return $class->new ("$base/$path");
		323	}
		324
		325	for ($path) {
		326	redo if s{/\.?/}{/};
		327	redo if s{/[^/]+/\.\./}{/};
		328	}
		329	}
		330
		331	$self->{path} = $path;
		332
		333	$self
		334	}
		335
		336	# the name / primary key / in-game path
		337	sub as_string {
		338	my ($self) = @_;
		339
		340	$self->{user_rel} ? "~$self->{user}$self->{path}"
		341	: $self->{random} ? "?random/$self->{path}"
		342	: $self->{path}
		343	}
		344
		345	# the displayed name, this is a one way mapping
		346	sub visible_name {
		347	my ($self) = @_;
		348
		349	# if (my $rmp = $self->{random}) {
		350	# # todo: be more intelligent about this
		351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		352	# } else {
		353	$self->as_string
		354	# }
		355	}
		356
		357	# escape the /'s in the path
		358	sub _escaped_path {
		359	# ∕ is U+2215
		360	(my $path = $_[0]{path}) =~ s/\//∕/g;
		361	$path
		362	}
		363
		364	# the original (read-only) location
		365	sub load_path {
		366	my ($self) = @_;
		367
		368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		369	}
		370
		371	# the temporary/swap location
		372	sub save_path {
		373	my ($self) = @_;
		374
		375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		378	}
		379
		380	# the unique path, might be eq to save_path
		381	sub uniq_path {
		382	my ($self) = @_;
		383
		384	$self->{user_rel} || $self->{random}
		385	? undef
		386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		387	}
		388
		389	# return random map parameters, or undef
		390	sub random_map_params {
		391	my ($self) = @_;
		392
		393	$self->{random}
		394	}
		395
		396	# this is somewhat ugly, but style maps do need special treatment
		397	sub is_style_map {
		398	$_[0]{path} =~ m{^/styles/}
		399	}
		400
		401	package cf;
140		402
141	#############################################################################	403	#############################################################################
142		404
143	=head2 ATTACHABLE OBJECTS	405	=head2 ATTACHABLE OBJECTS
144		406
…		…
249	my ($self, $victim) = @_;	511	my ($self, $victim) = @_;
250	...	512	...
251	}	513	}
252	}	514	}
253		515
		516	=item $attachable->valid
		517
		518	Just because you have a perl object does not mean that the corresponding
		519	C-level object still exists. If you try to access an object that has no
		520	valid C counterpart anymore you get an exception at runtime. This method
		521	can be used to test for existence of the C object part without causing an
		522	exception.
		523
254	=cut	524	=cut
255		525
256	# the following variables are defined in .xs and must not be re-created	526	# the following variables are defined in .xs and must not be re-created
257	our @CB_GLOBAL = (); # registry for all global events	527	our @CB_GLOBAL = (); # registry for all global events
		528	our @CB_ATTACHABLE = (); # registry for all attachables
258	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	529	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
259	our @CB_PLAYER = ();	530	our @CB_PLAYER = ();
260	our @CB_CLIENT = ();	531	our @CB_CLIENT = ();
261	our @CB_TYPE = (); # registry for type (cf-object class) based events	532	our @CB_TYPE = (); # registry for type (cf-object class) based events
262	our @CB_MAP = ();	533	our @CB_MAP = ();
263		534
264	my %attachment;	535	my %attachment;
265		536
266	sub _attach_cb($$$$) {	537	sub _attach_cb($$$$) {
267	my ($registry, $event, $prio, $cb) = @_;	538	my ($registry, $event, $prio, $cb) = @_;
…		…
272		543
273	@{$registry->[$event]} = sort	544	@{$registry->[$event]} = sort
274	{ $a->[0] cmp $b->[0] }	545	{ $a->[0] cmp $b->[0] }
275	@{$registry->[$event] || []}, $cb;	546	@{$registry->[$event] || []}, $cb;
276	}	547	}
		548
		549	# hack
		550	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
277		551
278	# attach handles attaching event callbacks	552	# attach handles attaching event callbacks
279	# the only thing the caller has to do is pass the correct	553	# the only thing the caller has to do is pass the correct
280	# registry (== where the callback attaches to).	554	# registry (== where the callback attaches to).
281	sub _attach {	555	sub _attach {
…		…
283		557
284	my $object_type;	558	my $object_type;
285	my $prio = 0;	559	my $prio = 0;
286	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	560	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
287		561
		562	#TODO: get rid of this hack
		563	if ($attachable_klass{$klass}) {
		564	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		565	}
		566
288	while (@arg) {	567	while (@arg) {
289	my $type = shift @arg;	568	my $type = shift @arg;
290		569
291	if ($type eq "prio") {	570	if ($type eq "prio") {
292	$prio = shift @arg;	571	$prio = shift @arg;
…		…
367	my ($obj, $name) = @_;	646	my ($obj, $name) = @_;
368		647
369	exists $obj->{_attachment}{$name}	648	exists $obj->{_attachment}{$name}
370	}	649	}
371		650
372	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	651	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
373	eval "#line " . __LINE__ . " 'cf.pm'	652	eval "#line " . __LINE__ . " 'cf.pm'
374	sub cf::\L$klass\E::_attach_registry {	653	sub cf::\L$klass\E::_attach_registry {
375	(\\\@CB_$klass, KLASS_$klass)	654	(\\\@CB_$klass, KLASS_$klass)
376	}	655	}
377		656
…		…
413	}	692	}
414		693
415	0	694	0
416	}	695	}
417		696
418	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	697	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
419		698
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, ...)	699	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
425		700
426	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
427
428	Generate a global/object/player/map-specific event with the given arguments.	701	Generate an object-specific event with the given arguments.
429		702
430	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be	703	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	704	removed in future versions), and there is no public API to access override
432	results (if you must, access C<@cf::invoke_results> directly).	705	results (if you must, access C<@cf::invoke_results> directly).
433		706
434	=back	707	=back
435		708
436	=cut	709	=cut
437		710
438	#############################################################################	711	#############################################################################
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	712	# object support
460		713
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 {	714	sub reattach {
		715	# basically do the same as instantiate, without calling instantiate
475	my ($obj) = @_;	716	my ($obj) = @_;
		717
476	my $registry = $obj->registry;	718	my $registry = $obj->registry;
477		719
478	@$registry = ();	720	@$registry = ();
479		721
480	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	722	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
489	warn "object uses attachment '$name' that is not available, postponing.\n";	731	warn "object uses attachment '$name' that is not available, postponing.\n";
490	}	732	}
491	}	733	}
492	}	734	}
493		735
494	sub object_freezer_save {	736	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	$$rdata . Dumper $objs
531	}
532
533	sub object_thawer_load {
534	my ($filename) = @_;
535
536	local $/;
537
538	my $av;
539
540	#TODO: use sysread etc.
541	if (open my $data, "<:raw:perlio", $filename) {
542	$data = <$data>;
543	if (open my $pst, "<:raw:perlio", "$filename.pst") {
544	$av = eval { (Storable::thaw <$pst>)->{objs} };
545	}
546	return ($data, $av);
547	}
548
549	()
550	}
551
552	cf::object->attach (
553	prio => -1000000,	737	prio => -1000000,
		738	on_instantiate => sub {
		739	my ($obj, $data) = @_;
		740
		741	$data = from_json $data;
		742
		743	for (@$data) {
		744	my ($name, $args) = @$_;
		745
		746	$obj->attach ($name, %{$args || {} });
		747	}
		748	},
		749	on_reattach => \&reattach,
554	on_clone => sub {	750	on_clone => sub {
555	my ($src, $dst) = @_;	751	my ($src, $dst) = @_;
556		752
557	@{$dst->registry} = @{$src->registry};	753	@{$dst->registry} = @{$src->registry};
558		754
…		…
560		756
561	%{$dst->{_attachment}} = %{$src->{_attachment}}	757	%{$dst->{_attachment}} = %{$src->{_attachment}}
562	if exists $src->{_attachment};	758	if exists $src->{_attachment};
563	},	759	},
564	);	760	);
		761
		762	sub object_freezer_save {
		763	my ($filename, $rdata, $objs) = @_;
		764
		765	sync_job {
		766	if (length $$rdata) {
		767	warn sprintf "saving %s (%d,%d)\n",
		768	$filename, length $$rdata, scalar @$objs;
		769
		770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		771	chmod SAVE_MODE, $fh;
		772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		773	aio_fsync $fh;
		774	close $fh;
		775
		776	if (@$objs) {
		777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		778	chmod SAVE_MODE, $fh;
		779	my $data = Storable::nfreeze { version => 1, objs => $objs };
		780	aio_write $fh, 0, (length $data), $data, 0;
		781	aio_fsync $fh;
		782	close $fh;
		783	aio_rename "$filename.pst~", "$filename.pst";
		784	}
		785	} else {
		786	aio_unlink "$filename.pst";
		787	}
		788
		789	aio_rename "$filename~", $filename;
		790	} else {
		791	warn "FATAL: $filename~: $!\n";
		792	}
		793	} else {
		794	aio_unlink $filename;
		795	aio_unlink "$filename.pst";
		796	}
		797	}
		798	}
		799
		800	sub object_freezer_as_string {
		801	my ($rdata, $objs) = @_;
		802
		803	use Data::Dumper;
		804
		805	$$rdata . Dumper $objs
		806	}
		807
		808	sub object_thawer_load {
		809	my ($filename) = @_;
		810
		811	my ($data, $av);
		812
		813	(aio_load $filename, $data) >= 0
		814	or return;
		815
		816	unless (aio_stat "$filename.pst") {
		817	(aio_load "$filename.pst", $av) >= 0
		818	or return;
		819	$av = eval { (Storable::thaw $av)->{objs} };
		820	}
		821
		822	return ($data, $av);
		823	}
565		824
566	#############################################################################	825	#############################################################################
567	# command handling &c	826	# command handling &c
568		827
569	=item cf::register_command $name => \&callback($ob,$args);	828	=item cf::register_command $name => \&callback($ob,$args);
…		…
758		1017
759	=head2 CORE EXTENSIONS	1018	=head2 CORE EXTENSIONS
760		1019
761	Functions and methods that extend core crossfire objects.	1020	Functions and methods that extend core crossfire objects.
762		1021
		1022	=head3 cf::player
		1023
763	=over 4	1024	=over 4
764		1025
765	=item cf::player::exists $login	1026	=item cf::player::exists $login
766		1027
767	Returns true when the given account exists.	1028	Returns true when the given account exists.
…		…
771	sub cf::player::exists($) {	1032	sub cf::player::exists($) {
772	cf::player::find $_[0]	1033	cf::player::find $_[0]
773	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1034	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
774	}	1035	}
775		1036
		1037	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1038
		1039	Sends an ext reply to the player.
		1040
		1041	=cut
		1042
		1043	sub cf::player::ext_reply($$$%) {
		1044	my ($self, $id, %msg) = @_;
		1045
		1046	$msg{msgid} = $id;
		1047
		1048	$self->send ("ext " . to_json \%msg);
		1049	}
		1050
		1051	=back
		1052
		1053
		1054	=head3 cf::map
		1055
		1056	=over 4
		1057
		1058	=cut
		1059
		1060	package cf::map;
		1061
		1062	use Fcntl;
		1063	use Coro::AIO;
		1064
		1065	our $MAX_RESET = 7200;
		1066	our $DEFAULT_RESET = 3600;
		1067
		1068	sub generate_random_map {
		1069	my ($path, $rmp) = @_;
		1070
		1071	# mit "rum" bekleckern, nicht
		1072	cf::map::_create_random_map
		1073	$path,
		1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1077	$rmp->{exit_on_final_map},
		1078	$rmp->{xsize}, $rmp->{ysize},
		1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1082	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1084	(cf::region::find $rmp->{region})
		1085	}
		1086
		1087	# and all this just because we cannot iterate over
		1088	# all maps in C++...
		1089	sub change_all_map_light {
		1090	my ($change) = @_;
		1091
		1092	$_->change_map_light ($change) for values %cf::MAP;
		1093	}
		1094
		1095	sub try_load_header($) {
		1096	my ($path) = @_;
		1097
		1098	utf8::encode $path;
		1099	aio_open $path, O_RDONLY, 0
		1100	or return;
		1101
		1102	my $map = cf::map::new
		1103	or return;
		1104
		1105	$map->load_header ($path)
		1106	or return;
		1107
		1108	$map->{load_path} = $path;
		1109
		1110	$map
		1111	}
		1112
		1113	sub find_map {
		1114	my ($path, $origin) = @_;
		1115
		1116	#warn "find_map<$path,$origin>\n";#d#
		1117
		1118	$path = new cf::path $path, $origin && $origin->path;
		1119	my $key = $path->as_string;
		1120
		1121	$cf::MAP{$key} || do {
		1122	# do it the slow way
		1123	my $map = try_load_header $path->save_path;
		1124
		1125	if ($map) {
		1126	# safety
		1127	$map->{instantiate_time} = $cf::RUNTIME
		1128	if $map->{instantiate_time} > $cf::RUNTIME;
		1129	} else {
		1130	if (my $rmp = $path->random_map_params) {
		1131	$map = generate_random_map $key, $rmp;
		1132	} else {
		1133	$map = try_load_header $path->load_path;
		1134	}
		1135
		1136	$map or return;
		1137
		1138	$map->{load_original} = 1;
		1139	$map->{instantiate_time} = $cf::RUNTIME;
		1140	$map->instantiate;
		1141
		1142	# per-player maps become, after loading, normal maps
		1143	$map->per_player (0) if $path->{user_rel};
		1144	}
		1145
		1146	$map->path ($key);
		1147	$map->{path} = $path;
		1148	$map->{last_save} = $cf::RUNTIME;
		1149	$map->last_access ($cf::RUNTIME);
		1150
		1151	if ($map->should_reset) {
		1152	$map->reset;
		1153	$map = find_map $path;
		1154	}
		1155
		1156	$cf::MAP{$key} = $map
		1157	}
		1158	}
		1159
		1160	sub load {
		1161	my ($self) = @_;
		1162
		1163	return if $self->in_memory != cf::MAP_SWAPPED;
		1164
		1165	$self->in_memory (cf::MAP_LOADING);
		1166
		1167	my $path = $self->{path};
		1168
		1169	$self->alloc;
		1170	$self->load_objects ($self->{load_path}, 1)
		1171	or return;
		1172
		1173	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1174	if delete $self->{load_original};
		1175
		1176	if (my $uniq = $path->uniq_path) {
		1177	utf8::encode $uniq;
		1178	if (aio_open $uniq, O_RDONLY, 0) {
		1179	$self->clear_unique_items;
		1180	$self->load_objects ($uniq, 0);
		1181	}
		1182	}
		1183
		1184	# now do the right thing for maps
		1185	$self->link_multipart_objects;
		1186
		1187	if ($self->{path}->is_style_map) {
		1188	$self->{deny_save} = 1;
		1189	$self->{deny_reset} = 1;
		1190	} else {
		1191	$self->fix_auto_apply;
		1192	$self->decay_objects;
		1193	$self->update_buttons;
		1194	$self->set_darkness_map;
		1195	$self->difficulty ($self->estimate_difficulty)
		1196	unless $self->difficulty;
		1197	$self->activate;
		1198	}
		1199
		1200	$self->in_memory (cf::MAP_IN_MEMORY);
		1201	}
		1202
		1203	sub load_map_sync {
		1204	my ($path, $origin) = @_;
		1205
		1206	#warn "load_map_sync<$path, $origin>\n";#d#
		1207
		1208	cf::sync_job {
		1209	my $map = cf::map::find_map $path, $origin
		1210	or return;
		1211	$map->load;
		1212	$map
		1213	}
		1214	}
		1215
		1216	sub save {
		1217	my ($self) = @_;
		1218
		1219	my $save = $self->{path}->save_path; utf8::encode $save;
		1220	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1221
		1222	$self->{last_save} = $cf::RUNTIME;
		1223
		1224	return unless $self->dirty;
		1225
		1226	$self->{load_path} = $save;
		1227
		1228	return if $self->{deny_save};
		1229
		1230	if ($uniq) {
		1231	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1232	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1233	} else {
		1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1235	}
		1236	}
		1237
		1238	sub swap_out {
		1239	my ($self) = @_;
		1240
		1241	return if $self->players;
		1242	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1243	return if $self->{deny_save};
		1244
		1245	$self->save;
		1246	$self->clear;
		1247	$self->in_memory (cf::MAP_SWAPPED);
		1248	}
		1249
		1250	sub reset_at {
		1251	my ($self) = @_;
		1252
		1253	# TODO: safety, remove and allow resettable per-player maps
		1254	return 1e99 if $self->{path}{user_rel};
		1255	return 1e99 if $self->{deny_reset};
		1256
		1257	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1258	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1259
		1260	$time + $to
		1261	}
		1262
		1263	sub should_reset {
		1264	my ($self) = @_;
		1265
		1266	$self->reset_at <= $cf::RUNTIME
		1267	}
		1268
		1269	sub unlink_save {
		1270	my ($self) = @_;
		1271
		1272	utf8::encode (my $save = $self->{path}->save_path);
		1273	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1274	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1275	}
		1276
		1277	sub rename {
		1278	my ($self, $new_path) = @_;
		1279
		1280	$self->unlink_save;
		1281
		1282	delete $cf::MAP{$self->path};
		1283	$self->{path} = new cf::path $new_path;
		1284	$self->path ($self->{path}->as_string);
		1285	$cf::MAP{$self->path} = $self;
		1286
		1287	$self->save;
		1288	}
		1289
		1290	sub reset {
		1291	my ($self) = @_;
		1292
		1293	return if $self->players;
		1294	return if $self->{path}{user_rel};#d#
		1295
		1296	warn "resetting map ", $self->path;#d#
		1297
		1298	delete $cf::MAP{$self->path};
		1299
		1300	$_->clear_links_to ($self) for values %cf::MAP;
		1301
		1302	$self->unlink_save;
		1303	$self->destroy;
		1304	}
		1305
		1306	my $nuke_counter = "aaaa";
		1307
		1308	sub nuke {
		1309	my ($self) = @_;
		1310
		1311	$self->{deny_save} = 1;
		1312	$self->reset_timeout (1);
		1313	$self->rename ("{nuke}/" . ($nuke_counter++));
		1314	$self->reset; # polite request, might not happen
		1315	}
		1316
		1317	sub customise_for {
		1318	my ($map, $ob) = @_;
		1319
		1320	if ($map->per_player) {
		1321	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1322	}
		1323
		1324	$map
		1325	}
		1326
		1327	sub emergency_save {
		1328	local $cf::FREEZE = 1;
		1329
		1330	warn "enter emergency map save\n";
		1331
		1332	cf::sync_job {
		1333	warn "begin emergency map save\n";
		1334	$_->save for values %cf::MAP;
		1335	};
		1336
		1337	warn "end emergency map save\n";
		1338	}
		1339
		1340	package cf;
		1341
		1342	=back
		1343
		1344
		1345	=head3 cf::object::player
		1346
		1347	=over 4
		1348
776	=item $player_object->reply ($npc, $msg[, $flags])	1349	=item $player_object->reply ($npc, $msg[, $flags])
777		1350
778	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1351	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	1352	can be C<undef>. Does the right thing when the player is currently in a
780	dialogue with the given NPC character.	1353	dialogue with the given NPC character.
781		1354
782	=cut	1355	=cut
783		1356
784	# rough implementation of a future "reply" method that works	1357	# rough implementation of a future "reply" method that works
785	# with dialog boxes.	1358	# with dialog boxes.
		1359	#TODO: the first argument must go, split into a $npc->reply_to ( method
786	sub cf::object::player::reply($$$;$) {	1360	sub cf::object::player::reply($$$;$) {
787	my ($self, $npc, $msg, $flags) = @_;	1361	my ($self, $npc, $msg, $flags) = @_;
788		1362
789	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1363	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
790		1364
…		…
794	$msg = $npc->name . " says: $msg" if $npc;	1368	$msg = $npc->name . " says: $msg" if $npc;
795	$self->message ($msg, $flags);	1369	$self->message ($msg, $flags);
796	}	1370	}
797	}	1371	}
798		1372
799	=item $player->ext_reply ($msgid, $msgtype, %msg)
800
801	Sends an ext reply to the player.
802
803	=cut
804
805	sub cf::player::ext_reply($$$%) {
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")	1373	=item $player_object->may ("access")
814		1374
815	Returns wether the given player is authorized to access resource "access"	1375	Returns wether the given player is authorized to access resource "access"
816	(e.g. "command_wizcast").	1376	(e.g. "command_wizcast").
817		1377
…		…
824	(ref $cf::CFG{"may_$access"}	1384	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1385	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	1386	: $cf::CFG{"may_$access"})
827	}	1387	}
828		1388
829	=cut	1389	=item $player_object->enter_link
830		1390
831	#############################################################################	1391	Freezes the player and moves him/her to a special map (C<{link}>).
		1392
		1393	The player should be reaosnably safe there for short amounts of time. You
		1394	I<MUST> call C<leave_link> as soon as possible, though.
		1395
		1396	=item $player_object->leave_link ($map, $x, $y)
		1397
		1398	Moves the player out of the specila link map onto the given map. If the
		1399	map is not valid (or omitted), the player will be moved back to the
		1400	location he/she was before the call to C<enter_link>, or, if that fails,
		1401	to the emergency map position.
		1402
		1403	Might block.
		1404
		1405	=cut
		1406
		1407	sub cf::object::player::enter_link {
		1408	my ($self) = @_;
		1409
		1410	return if $self->map == $LINK_MAP;
		1411
		1412	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1413	if $self->map;
		1414
		1415	$self->enter_map ($LINK_MAP, 20, 20);
		1416	$self->deactivate_recursive;
		1417	}
		1418
		1419	sub cf::object::player::leave_link {
		1420	my ($self, $map, $x, $y) = @_;
		1421
		1422	my $link_pos = delete $self->{_link_pos};
		1423
		1424	unless ($map) {
		1425	# restore original map position
		1426	($map, $x, $y) = @{ $link_pos || [] };
		1427	$map = cf::map::find_map $map;
		1428
		1429	unless ($map) {
		1430	($map, $x, $y) = @$EMERGENCY_POSITION;
		1431	$map = cf::map::find_map $map
		1432	or die "FATAL: cannot load emergency map\n";
		1433	}
		1434	}
		1435
		1436	($x, $y) = (-1, -1)
		1437	unless (defined $x) && (defined $y);
		1438
		1439	# use -1 or undef as default coordinates, not 0, 0
		1440	($x, $y) = ($map->enter_x, $map->enter_y)
		1441	if $x <=0 && $y <= 0;
		1442
		1443	$map->load;
		1444
		1445	$self->activate_recursive;
		1446	$self->enter_map ($map, $x, $y);
		1447	}
		1448
		1449	=item $player_object->goto_map ($map, $x, $y)
		1450
		1451	=cut
		1452
		1453	sub cf::object::player::goto_map {
		1454	my ($self, $path, $x, $y) = @_;
		1455
		1456	$self->enter_link;
		1457
		1458	(Coro::async {
		1459	$path = new cf::path $path;
		1460
		1461	my $map = cf::map::find_map $path->as_string;
		1462	$map = $map->customise_for ($self) if $map;
		1463
		1464	warn "entering ", $map->path, " at ($x, $y)\n"
		1465	if $map;
		1466
		1467	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1468
		1469	$self->leave_link ($map, $x, $y);
		1470	})->prio (1);
		1471	}
		1472
		1473	=item $player_object->enter_exit ($exit_object)
		1474
		1475	=cut
		1476
		1477	sub parse_random_map_params {
		1478	my ($spec) = @_;
		1479
		1480	my $rmp = { # defaults
		1481	xsize => 10,
		1482	ysize => 10,
		1483	};
		1484
		1485	for (split /\n/, $spec) {
		1486	my ($k, $v) = split /\s+/, $_, 2;
		1487
		1488	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1489	}
		1490
		1491	$rmp
		1492	}
		1493
		1494	sub prepare_random_map {
		1495	my ($exit) = @_;
		1496
		1497	# all this does is basically replace the /! path by
		1498	# a new random map path (?random/...) with a seed
		1499	# that depends on the exit object
		1500
		1501	my $rmp = parse_random_map_params $exit->msg;
		1502
		1503	if ($exit->map) {
		1504	$rmp->{region} = $exit->map->region_name;
		1505	$rmp->{origin_map} = $exit->map->path;
		1506	$rmp->{origin_x} = $exit->x;
		1507	$rmp->{origin_y} = $exit->y;
		1508	}
		1509
		1510	$rmp->{random_seed} ||= $exit->random_seed;
		1511
		1512	my $data = cf::to_json $rmp;
		1513	my $md5 = Digest::MD5::md5_hex $data;
		1514
		1515	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1516	aio_write $fh, 0, (length $data), $data, 0;
		1517
		1518	$exit->slaying ("?random/$md5");
		1519	$exit->msg (undef);
		1520	}
		1521	}
		1522
		1523	sub cf::object::player::enter_exit {
		1524	my ($self, $exit) = @_;
		1525
		1526	return unless $self->type == cf::PLAYER;
		1527
		1528	$self->enter_link;
		1529
		1530	(Coro::async {
		1531	unless (eval {
		1532
		1533	prepare_random_map $exit
		1534	if $exit->slaying eq "/!";
		1535
		1536	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1537	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1538
		1539	1;
		1540	}) {
		1541	$self->message ("Something went wrong deep within the crossfire server. "
		1542	. "I'll try to bring you back to the map you were before. "
		1543	. "Please report this to the dungeon master",
		1544	cf::NDI_UNIQUE | cf::NDI_RED);
		1545
		1546	warn "ERROR in enter_exit: $@";
		1547	$self->leave_link;
		1548	}
		1549	})->prio (1);
		1550	}
		1551
		1552	=head3 cf::client
		1553
		1554	=over 4
		1555
		1556	=item $client->send_drawinfo ($text, $flags)
		1557
		1558	Sends a drawinfo packet to the client. Circumvents output buffering so
		1559	should not be used under normal circumstances.
		1560
		1561	=cut
		1562
		1563	sub cf::client::send_drawinfo {
		1564	my ($self, $text, $flags) = @_;
		1565
		1566	utf8::encode $text;
		1567	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1568	}
		1569
		1570
		1571	=item $success = $client->query ($flags, "text", \&cb)
		1572
		1573	Queues a query to the client, calling the given callback with
		1574	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1575	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1576
		1577	Queries can fail, so check the return code. Or don't, as queries will become
		1578	reliable at some point in the future.
		1579
		1580	=cut
		1581
		1582	sub cf::client::query {
		1583	my ($self, $flags, $text, $cb) = @_;
		1584
		1585	return unless $self->state == ST_PLAYING
		1586	|| $self->state == ST_SETUP
		1587	|| $self->state == ST_CUSTOM;
		1588
		1589	$self->state (ST_CUSTOM);
		1590
		1591	utf8::encode $text;
		1592	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1593
		1594	$self->send_packet ($self->{query_queue}[0][0])
		1595	if @{ $self->{query_queue} } == 1;
		1596	}
		1597
		1598	cf::client->attach (
		1599	on_reply => sub {
		1600	my ($ns, $msg) = @_;
		1601
		1602	# this weird shuffling is so that direct followup queries
		1603	# get handled first
		1604	my $queue = delete $ns->{query_queue};
		1605
		1606	(shift @$queue)->[1]->($msg);
		1607
		1608	push @{ $ns->{query_queue} }, @$queue;
		1609
		1610	if (@{ $ns->{query_queue} } == @$queue) {
		1611	if (@$queue) {
		1612	$ns->send_packet ($ns->{query_queue}[0][0]);
		1613	} else {
		1614	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1615	}
		1616	}
		1617	},
		1618	);
		1619
		1620	=item $client->coro (\&cb)
		1621
		1622	Create a new coroutine, running the specified callback. The coroutine will
		1623	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1624	or loss of connection).
		1625
		1626	=cut
		1627
		1628	sub cf::client::coro {
		1629	my ($self, $cb) = @_;
		1630
		1631	my $coro; $coro = async {
		1632	eval {
		1633	$cb->();
		1634	};
		1635	warn $@ if $@;
		1636	};
		1637
		1638	$coro->on_destroy (sub {
		1639	delete $self->{_coro}{$coro+0};
		1640	});
		1641
		1642	$self->{_coro}{$coro+0} = $coro;
		1643
		1644	$coro
		1645	}
		1646
		1647	cf::client->attach (
		1648	on_destroy => sub {
		1649	my ($ns) = @_;
		1650
		1651	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1652	},
		1653	);
		1654
		1655	=back
		1656
832		1657
833	=head2 SAFE SCRIPTING	1658	=head2 SAFE SCRIPTING
834		1659
835	Functions that provide a safe environment to compile and execute	1660	Functions that provide a safe environment to compile and execute
836	snippets of perl code without them endangering the safety of the server	1661	snippets of perl code without them endangering the safety of the server
…		…
1056	local $/;	1881	local $/;
1057	*CFG = YAML::Syck::Load <$fh>;	1882	*CFG = YAML::Syck::Load <$fh>;
1058	}	1883	}
1059		1884
1060	sub main {	1885	sub main {
		1886	# we must not ever block the main coroutine
		1887	local $Coro::idle = sub {
		1888	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		1889	(Coro::unblock_sub {
		1890	Event::one_event;
		1891	})->();
		1892	};
		1893
1061	cfg_load;	1894	cfg_load;
1062	db_load;	1895	db_load;
1063	load_extensions;	1896	load_extensions;
1064	Event::loop;	1897	Event::loop;
1065	}	1898	}
1066		1899
1067	#############################################################################	1900	#############################################################################
1068	# initialisation	1901	# initialisation
1069		1902
1070	sub _perl_reload(&) {	1903	sub reload() {
1071	my ($msg) = @_;	1904	# can/must only be called in main
		1905	if ($Coro::current != $Coro::main) {
		1906	warn "can only reload from main coroutine\n";
		1907	return;
		1908	}
1072		1909
1073	$msg->("reloading...");	1910	warn "reloading...";
		1911
		1912	local $FREEZE = 1;
		1913	cf::emergency_save;
1074		1914
1075	eval {	1915	eval {
		1916	# if anything goes wrong in here, we should simply crash as we already saved
		1917
1076	# cancel all watchers	1918	# cancel all watchers
1077	for (Event::all_watchers) {	1919	for (Event::all_watchers) {
1078	$_->cancel if $_->data & WF_AUTOCANCEL;	1920	$_->cancel if $_->data & WF_AUTOCANCEL;
1079	}	1921	}
1080		1922
		1923	# cancel all extension coros
		1924	$_->cancel for values %EXT_CORO;
		1925	%EXT_CORO = ();
		1926
1081	# unload all extensions	1927	# unload all extensions
1082	for (@exts) {	1928	for (@exts) {
1083	$msg->("unloading <$_>");	1929	warn "unloading <$_>";
1084	unload_extension $_;	1930	unload_extension $_;
1085	}	1931	}
1086		1932
1087	# unload all modules loaded from $LIBDIR	1933	# unload all modules loaded from $LIBDIR
1088	while (my ($k, $v) = each %INC) {	1934	while (my ($k, $v) = each %INC) {
1089	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1935	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1090		1936
1091	$msg->("removing <$k>");	1937	warn "removing <$k>";
1092	delete $INC{$k};	1938	delete $INC{$k};
1093		1939
1094	$k =~ s/\.pm$//;	1940	$k =~ s/\.pm$//;
1095	$k =~ s/\//::/g;	1941	$k =~ s/\//::/g;
1096		1942
…		…
1101	Symbol::delete_package $k;	1947	Symbol::delete_package $k;
1102	}	1948	}
1103		1949
1104	# sync database to disk	1950	# sync database to disk
1105	cf::db_sync;	1951	cf::db_sync;
		1952	IO::AIO::flush;
1106		1953
1107	# get rid of safe::, as good as possible	1954	# get rid of safe::, as good as possible
1108	Symbol::delete_package "safe::$_"	1955	Symbol::delete_package "safe::$_"
1109	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1956	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1110		1957
1111	# remove register_script_function callbacks	1958	# remove register_script_function callbacks
1112	# TODO	1959	# TODO
1113		1960
1114	# unload cf.pm "a bit"	1961	# unload cf.pm "a bit"
…		…
1117	# don't, removes xs symbols, too,	1964	# don't, removes xs symbols, too,
1118	# and global variables created in xs	1965	# and global variables created in xs
1119	#Symbol::delete_package __PACKAGE__;	1966	#Symbol::delete_package __PACKAGE__;
1120		1967
1121	# reload cf.pm	1968	# reload cf.pm
1122	$msg->("reloading cf.pm");	1969	warn "reloading cf.pm";
1123	require cf;	1970	require cf;
		1971	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1124		1972
1125	# load config and database again	1973	# load config and database again
1126	cf::cfg_load;	1974	cf::cfg_load;
1127	cf::db_load;	1975	cf::db_load;
1128		1976
1129	# load extensions	1977	# load extensions
1130	$msg->("load extensions");	1978	warn "load extensions";
1131	cf::load_extensions;	1979	cf::load_extensions;
1132		1980
1133	# reattach attachments to objects	1981	# reattach attachments to objects
1134	$msg->("reattach");	1982	warn "reattach";
1135	_global_reattach;	1983	_global_reattach;
1136	};	1984	};
1137	$msg->($@) if $@;
1138		1985
1139	$msg->("reloaded");	1986	if ($@) {
		1987	warn $@;
		1988	warn "error while reloading, exiting.";
		1989	exit 1;
		1990	}
		1991
		1992	warn "reloaded successfully";
1140	};	1993	};
1141		1994
1142	sub perl_reload() {	1995	#############################################################################
1143	_perl_reload {	1996
1144	warn $_[0];	1997	unless ($LINK_MAP) {
1145	print "$_[0]\n";	1998	$LINK_MAP = cf::map::new;
1146	};	1999
		2000	$LINK_MAP->width (41);
		2001	$LINK_MAP->height (41);
		2002	$LINK_MAP->alloc;
		2003	$LINK_MAP->path ("{link}");
		2004	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2005	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2006
		2007	# dirty hack because... archetypes are not yet loaded
		2008	Event->timer (
		2009	after => 2,
		2010	cb => sub {
		2011	$_[0]->w->cancel;
		2012
		2013	# provide some exits "home"
		2014	my $exit = cf::object::new "exit";
		2015
		2016	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2017	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2018	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2019
		2020	$LINK_MAP->insert ($exit->clone, 19, 19);
		2021	$LINK_MAP->insert ($exit->clone, 19, 20);
		2022	$LINK_MAP->insert ($exit->clone, 19, 21);
		2023	$LINK_MAP->insert ($exit->clone, 20, 19);
		2024	$LINK_MAP->insert ($exit->clone, 20, 21);
		2025	$LINK_MAP->insert ($exit->clone, 21, 19);
		2026	$LINK_MAP->insert ($exit->clone, 21, 20);
		2027	$LINK_MAP->insert ($exit->clone, 21, 21);
		2028
		2029	$exit->destroy;
		2030	});
		2031
		2032	$LINK_MAP->{deny_save} = 1;
		2033	$LINK_MAP->{deny_reset} = 1;
		2034
		2035	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1147	}	2036	}
1148		2037
1149	register "<global>", __PACKAGE__;	2038	register "<global>", __PACKAGE__;
1150		2039
1151	register_command "perl-reload" => sub {	2040	register_command "reload" => sub {
1152	my ($who, $arg) = @_;	2041	my ($who, $arg) = @_;
1153		2042
1154	if ($who->flag (FLAG_WIZ)) {	2043	if ($who->flag (FLAG_WIZ)) {
1155	_perl_reload {	2044	$who->message ("start of reload.");
1156	warn $_[0];	2045	reload;
1157	$who->message ($_[0]);	2046	$who->message ("end of reload.");
1158	};
1159	}	2047	}
1160	};	2048	};
1161		2049
1162	unshift @INC, $LIBDIR;	2050	unshift @INC, $LIBDIR;
1163		2051
1164	$TICK_WATCHER = Event->timer (	2052	$TICK_WATCHER = Event->timer (
		2053	reentrant => 0,
1165	prio => 0,	2054	prio => 0,
1166	at => $NEXT_TICK || 1,	2055	at => $NEXT_TICK || $TICK,
1167	data => WF_AUTOCANCEL,	2056	data => WF_AUTOCANCEL,
1168	cb => sub {	2057	cb => sub {
		2058	unless ($FREEZE) {
1169	cf::server_tick; # one server iteration	2059	cf::server_tick; # one server iteration
		2060	$RUNTIME += $TICK;
		2061	}
1170		2062
1171	my $NOW = Event::time;
1172	$NEXT_TICK += $TICK;	2063	$NEXT_TICK += $TICK;
1173		2064
1174	# if we are delayed by four ticks or more, skip them all	2065	# if we are delayed by four ticks or more, skip them all
1175	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2066	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1176		2067
1177	$TICK_WATCHER->at ($NEXT_TICK);	2068	$TICK_WATCHER->at ($NEXT_TICK);
1178	$TICK_WATCHER->start;	2069	$TICK_WATCHER->start;
1179	},	2070	},
1180	);	2071	);
1181		2072
1182	IO::AIO::max_poll_time $TICK * 0.2;	2073	IO::AIO::max_poll_time $TICK * 0.2;
1183		2074
		2075	Event->io (
1184	Event->io (fd => IO::AIO::poll_fileno,	2076	fd => IO::AIO::poll_fileno,
1185	poll => 'r',	2077	poll => 'r',
1186	prio => 5,	2078	prio => 5,
1187	data => WF_AUTOCANCEL,	2079	data => WF_AUTOCANCEL,
1188	cb => \&IO::AIO::poll_cb);	2080	cb => \&IO::AIO::poll_cb,
		2081	);
		2082
		2083	Event->timer (
		2084	data => WF_AUTOCANCEL,
		2085	after => 0,
		2086	interval => 10,
		2087	cb => sub {
		2088	(Coro::unblock_sub {
		2089	write_runtime
		2090	or warn "ERROR: unable to write runtime file: $!";
		2091	})->();
		2092	},
		2093	);
1189		2094
1190	1	2095	1
1191		2096

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