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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.83 by root, Mon Dec 11 01:30:41 2006 UTC vs.
Revision 1.164 by root, Thu Jan 11 01:24:25 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3 ();
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Data::Dumper;
		21	use Digest::MD5;
		22	use Fcntl;
10	use IO::AIO ();	23	use IO::AIO 2.32 ();
11	use YAML::Syck ();	24	use YAML::Syck ();
12	use Time::HiRes;	25	use Time::HiRes;
13	use Event;	26
14	$Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
15		30
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
18		33
19	use strict;	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
20		35
21	_init_vars;
22
23	our %COMMAND = ();	36	our %COMMAND = ();
		37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
		40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
		43
24	our @EVENT;	44	our @EVENT;
25	our $LIBDIR = maps_directory "perl";	45	our $LIBDIR = datadir . "/ext";
26		46
27	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
28	our $TICK_WATCHER;	48	our $TICK_WATCHER;
29	our $NEXT_TICK;	49	our $NEXT_TICK;
		50	our $NOW;
30		51
31	our %CFG;	52	our %CFG;
32		53
33	our $uptime;#d#	54	our $UPTIME; $UPTIME ||= time;
34	our $UPTIME;	55	our $RUNTIME;
35	$UPTIME ||= $uptime;#d#	56
36	$UPTIME ||= time;	57	our %PLAYER; # all users
		58	our %MAP; # all maps
		59	our $LINK_MAP; # the special {link} map
		60	our $RANDOM_MAPS = cf::localdir . "/random";
		61
		62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		64
		65	binmode STDOUT;
		66	binmode STDERR;
		67
		68	# read virtual server time, if available
		69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		70	open my $fh, "<", cf::localdir . "/runtime"
		71	or die "unable to read runtime file: $!";
		72	$RUNTIME = <$fh> + 0.;
		73	}
		74
		75	mkdir cf::localdir;
		76	mkdir cf::localdir . "/" . cf::playerdir;
		77	mkdir cf::localdir . "/" . cf::tmpdir;
		78	mkdir cf::localdir . "/" . cf::uniquedir;
		79	mkdir $RANDOM_MAPS;
		80
		81	# a special map that is always available
		82	our $LINK_MAP;
		83	our $EMERGENCY_POSITION;
37		84
38	#############################################################################	85	#############################################################################
39		86
40	=head2 GLOBAL VARIABLES	87	=head2 GLOBAL VARIABLES
41		88
42	=over 4	89	=over 4
43		90
44	=item $cf::UPTIME	91	=item $cf::UPTIME
45		92
46	The timestamp of the server start (so not actually an uptime).	93	The timestamp of the server start (so not actually an uptime).
		94
		95	=item $cf::RUNTIME
		96
		97	The time this server has run, starts at 0 and is increased by $cf::TICK on
		98	every server tick.
47		99
48	=item $cf::LIBDIR	100	=item $cf::LIBDIR
49		101
50	The perl library directory, where extensions and cf-specific modules can	102	The perl library directory, where extensions and cf-specific modules can
51	be found. It will be added to C<@INC> automatically.	103	be found. It will be added to C<@INC> automatically.
52		104
		105	=item $cf::NOW
		106
		107	The time of the last (current) server tick.
		108
53	=item $cf::TICK	109	=item $cf::TICK
54		110
55	The interval between server ticks, in seconds.	111	The interval between server ticks, in seconds.
56		112
57	=item %cf::CFG	113	=item %cf::CFG
58		114
59	Configuration for the server, loaded from C</etc/crossfire/config>, or	115	Configuration for the server, loaded from C</etc/crossfire/config>, or
60	from wherever your confdir points to.	116	from wherever your confdir points to.
		117
		118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		119
		120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		122	processing has been done. Call C<< ->wait >> on them to maximise the
		123	window of cpu time available, or simply to synchronise to the server tick.
61		124
62	=back	125	=back
63		126
64	=cut	127	=cut
65		128
66	BEGIN {	129	BEGIN {
67	*CORE::GLOBAL::warn = sub {	130	*CORE::GLOBAL::warn = sub {
68	my $msg = join "", @_;	131	my $msg = join "", @_;
		132	utf8::encode $msg;
		133
69	$msg .= "\n"	134	$msg .= "\n"
70	unless $msg =~ /\n$/;	135	unless $msg =~ /\n$/;
71		136
72	print STDERR "cfperl: $msg";
73	LOG llevError, "cfperl: $msg";	137	LOG llevError, $msg;
74	};	138	};
75	}	139	}
76		140
		141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
77	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
78		147
79	# we bless all objects into (empty) derived classes to force a method lookup	148	# we bless all objects into (empty) derived classes to force a method lookup
80	# within the Safe compartment.	149	# within the Safe compartment.
81	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	150	for my $pkg (qw(
		151	cf::global cf::attachable
		152	cf::object cf::object::player
		153	cf::client cf::player
		154	cf::arch cf::living
		155	cf::map cf::party cf::region
		156	)) {
82	no strict 'refs';	157	no strict 'refs';
83	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
84	}	159	}
85		160
86	$Event::DIED = sub {	161	$Event::DIED = sub {
87	warn "error in event callback: @_";	162	warn "error in event callback: @_";
88	};	163	};
89		164
90	my %ext_pkg;
91	my @exts;
92	my @hook;
93	my %command;
94	my %extcmd;
95
96	=head2 UTILITY FUNCTIONS	165	=head2 UTILITY FUNCTIONS
97		166
98	=over 4	167	=over 4
99		168
		169	=item dumpval $ref
		170
100	=cut	171	=cut
		172
		173	sub dumpval {
		174	eval {
		175	local $SIG{__DIE__};
		176	my $d;
		177	if (1) {
		178	$d = new Data::Dumper([$_[0]], ["*var"]);
		179	$d->Terse(1);
		180	$d->Indent(2);
		181	$d->Quotekeys(0);
		182	$d->Useqq(1);
		183	#$d->Bless(...);
		184	$d->Seen($_[1]) if @_ > 1;
		185	$d = $d->Dump();
		186	}
		187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		188	$d
		189	} || "[unable to dump $_[0]: '$@']";
		190	}
101		191
102	use JSON::Syck (); # TODO# replace by JSON::PC once working	192	use JSON::Syck (); # TODO# replace by JSON::PC once working
103		193
104	=item $ref = cf::from_json $json	194	=item $ref = cf::from_json $json
105		195
…		…
121	sub to_json($) {	211	sub to_json($) {
122	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
123	JSON::Syck::Dump $_[0]	213	JSON::Syck::Dump $_[0]
124	}	214	}
125		215
		216	=item cf::lock_wait $string
		217
		218	Wait until the given lock is available. See cf::lock_acquire.
		219
		220	=item my $lock = cf::lock_acquire $string
		221
		222	Wait until the given lock is available and then acquires it and returns
		223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		224	for example when the coroutine gets canceled), the lock is automatically
		225	returned.
		226
		227	Lock names should begin with a unique identifier (for example, cf::map::find
		228	uses map_find and cf::map::load uses map_load).
		229
		230	=cut
		231
		232	our %LOCK;
		233
		234	sub lock_wait($) {
		235	my ($key) = @_;
		236
		237	# wait for lock, if any
		238	while ($LOCK{$key}) {
		239	push @{ $LOCK{$key} }, $Coro::current;
		240	Coro::schedule;
		241	}
		242	}
		243
		244	sub lock_acquire($) {
		245	my ($key) = @_;
		246
		247	# wait, to be sure we are not locked
		248	lock_wait $key;
		249
		250	$LOCK{$key} = [];
		251
		252	Coro::guard {
		253	# wake up all waiters, to be on the safe side
		254	$_->ready for @{ delete $LOCK{$key} };
		255	}
		256	}
		257
		258	sub freeze_mainloop {
		259	return unless $TICK_WATCHER->is_active;
		260
		261	my $guard = Coro::guard { $TICK_WATCHER->start };
		262	$TICK_WATCHER->stop;
		263	$guard
		264	}
		265
		266	=item cf::async { BLOCK }
		267
		268	Currently the same as Coro::async_pool, meaning you cannot use
		269	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		270	thing you are allowed to do is call C<prio> on it.
		271
		272	=cut
		273
		274	BEGIN { *async = \&Coro::async_pool }
		275
		276	=item cf::sync_job { BLOCK }
		277
		278	The design of crossfire+ requires that the main coro ($Coro::main) is
		279	always able to handle events or runnable, as crossfire+ is only partly
		280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		281
		282	If it must be done, put the blocking parts into C<sync_job>. This will run
		283	the given BLOCK in another coroutine while waiting for the result. The
		284	server will be frozen during this time, so the block should either finish
		285	fast or be very important.
		286
		287	=cut
		288
		289	sub sync_job(&) {
		290	my ($job) = @_;
		291
		292	if ($Coro::current == $Coro::main) {
		293	# this is the main coro, too bad, we have to block
		294	# till the operation succeeds, freezing the server :/
		295
		296	# TODO: use suspend/resume instead
		297	# (but this is cancel-safe)
		298	my $freeze_guard = freeze_mainloop;
		299
		300	my $busy = 1;
		301	my @res;
		302
		303	(async {
		304	@res = eval { $job->() };
		305	warn $@ if $@;
		306	undef $busy;
		307	})->prio (Coro::PRIO_MAX);
		308
		309	while ($busy) {
		310	Coro::cede or Event::one_event;
		311	}
		312
		313	wantarray ? @res : $res[0]
		314	} else {
		315	# we are in another coroutine, how wonderful, everything just works
		316
		317	$job->()
		318	}
		319	}
		320
		321	=item $coro = cf::async_ext { BLOCK }
		322
		323	Like async, but this coro is automatically being canceled when the
		324	extension calling this is being unloaded.
		325
		326	=cut
		327
		328	sub async_ext(&) {
		329	my $cb = shift;
		330
		331	my $coro = &Coro::async ($cb);
		332
		333	$coro->on_destroy (sub {
		334	delete $EXT_CORO{$coro+0};
		335	});
		336	$EXT_CORO{$coro+0} = $coro;
		337
		338	$coro
		339	}
		340
		341	sub write_runtime {
		342	my $runtime = cf::localdir . "/runtime";
		343
		344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		345	or return;
		346
		347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		349	and return;
		350
		351	aio_fsync $fh
		352	and return;
		353
		354	close $fh
		355	or return;
		356
		357	aio_rename "$runtime~", $runtime
		358	and return;
		359
		360	1
		361	}
		362
126	=back	363	=back
127		364
128	=cut	365	=cut
129		366
130	#############################################################################	367	#############################################################################
131		368
132	=head2 EVENTS AND OBJECT ATTACHMENTS	369	package cf::path;
		370
		371	use overload
		372	'""' => \&as_string;
		373
		374	# used to convert map paths into valid unix filenames by repalcing / by ∕
		375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		376
		377	sub register {
		378	my ($pkg, $prefix) = @_;
		379
		380	$EXT_MAP{$prefix} = $pkg;
		381	}
		382
		383	sub new {
		384	my ($class, $path, $base) = @_;
		385
		386	return $path if ref $path;
		387
		388	my $self = {};
		389
		390	# {... are special paths that are not being touched
		391	# ?xxx/... are special absolute paths
		392	# ?random/... random maps
		393	# /! non-realised random map exit
		394	# /... normal maps
		395	# ~/... per-player maps without a specific player (DO NOT USE)
		396	# ~user/... per-player map of a specific user
		397
		398	$path =~ s/$PATH_SEP/\//go;
		399
		400	if ($path =~ /^{/) {
		401	# fine as it is
		402	} else {
		403	if ($path =~ s{^~([^/]+)?}{}) {
		404	# ~user
		405	$self->{user_rel} = 1;
		406
		407	if (defined $1) {
		408	$self->{user} = $1;
		409	} elsif ($base =~ m{^~([^/]+)/}) {
		410	$self->{user} = $1;
		411	} else {
		412	warn "cannot resolve user-relative path without user <$path,$base>\n";
		413	}
		414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
		415	# ?...
		416	$self->{ext} = $1;
		417	if (my $ext = $EXT_MAP{$1}) {
		418	bless $self, $ext;
		419	}
		420	} elsif ($path =~ /^\//) {
		421	# /...
		422	# already absolute
		423	} else {
		424	# relative
		425	$base =~ s{[^/]+/?$}{};
		426	return $class->new ("$base/$path");
		427	}
		428
		429	for ($path) {
		430	redo if s{/\.?/}{/};
		431	redo if s{/[^/]+/\.\./}{/};
		432	}
		433	}
		434
		435	$self->{path} = $path;
		436
		437	if ("HASH" eq ref $self) {
		438	bless $self, $class;
		439	} else {
		440	$self->init;
		441	}
		442
		443	for my $ext (values %EXT_MAP) {
		444	if (my $subst = $ext->substitute ($self)) {
		445	return $subst;
		446	}
		447	}
		448
		449	$self
		450	}
		451
		452	sub init {
		453	# nop
		454	}
		455
		456	sub substitute {
		457	()
		458	}
		459
		460	# the name / primary key / in-game path
		461	sub as_string {
		462	my ($self) = @_;
		463
		464	$self->{user_rel} ? "~$self->{user}$self->{path}"
		465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
		466	: $self->{path}
		467	}
		468
		469	# the displayed name, this is a one way mapping
		470	sub visible_name {
		471	&as_string
		472	}
		473
		474	# escape the /'s in the path
		475	sub _escaped_path {
		476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		477
		478	$path
		479	}
		480
		481	# the original (read-only) location
		482	sub load_path {
		483	my ($self) = @_;
		484
		485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		486	}
		487
		488	# the temporary/swap location
		489	sub save_path {
		490	my ($self) = @_;
		491
		492	$self->{user_rel}
		493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		495	}
		496
		497	# the unique path, undef == no special unique path
		498	sub uniq_path {
		499	my ($self) = @_;
		500
		501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		502	}
		503
		504	# this is somewhat ugly, but style maps do need special treatment
		505	sub is_style_map {
		506	$_[0]{path} =~ m{^/styles/}
		507	}
		508
		509	sub load_orig {
		510	my ($self) = @_;
		511
		512	&cf::map::load_map_header ($self->load_path)
		513	}
		514
		515	sub load_temp {
		516	my ($self) = @_;
		517
		518	&cf::map::load_map_header ($self->save_path)
		519	}
		520
		521	sub unlink_save {
		522	my ($self) = @_;
		523
		524	utf8::encode (my $save = $self->save_path);
		525	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
		526	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
		527	}
		528
		529	package cf;
		530
		531	#############################################################################
		532
		533	=head2 ATTACHABLE OBJECTS
		534
		535	Many objects in crossfire are so-called attachable objects. That means you can
		536	attach callbacks/event handlers (a collection of which is called an "attachment")
		537	to it. All such attachable objects support the following methods.
		538
		539	In the following description, CLASS can be any of C<global>, C<object>
		540	C<player>, C<client> or C<map> (i.e. the attachable objects in
		541	crossfire+).
133		542
134	=over 4	543	=over 4
135		544
136	=item $object->attach ($attachment, key => $value...)
137
138	=item $object->detach ($attachment)
139
140	Attach/detach a pre-registered attachment to an object.
141
142	=item $player->attach ($attachment, key => $value...)
143
144	=item $player->detach ($attachment)
145
146	Attach/detach a pre-registered attachment to a player.
147
148	=item $map->attach ($attachment, key => $value...)	545	=item $attachable->attach ($attachment, key => $value...)
149		546
150	=item $map->detach ($attachment)	547	=item $attachable->detach ($attachment)
151		548
152	Attach/detach a pre-registered attachment to a map.	549	Attach/detach a pre-registered attachment to a specific object and give it
		550	the specified key/value pairs as arguments.
153		551
154	=item $bool = $object->attached ($name)	552	Example, attach a minesweeper attachment to the given object, making it a
		553	10x10 minesweeper game:
155		554
156	=item $bool = $player->attached ($name)	555	$obj->attach (minesweeper => width => 10, height => 10);
157		556
158	=item $bool = $map->attached ($name)	557	=item $bool = $attachable->attached ($name)
159		558
160	Checks wether the named attachment is currently attached to the object.	559	Checks wether the named attachment is currently attached to the object.
161		560
162	=item cf::attach_global ...	561	=item cf::CLASS->attach ...
163		562
164	Attach handlers for global events.	563	=item cf::CLASS->detach ...
165		564
166	This and all following C<attach_*>-functions expect any number of the	565	Define an anonymous attachment and attach it to all objects of the given
167	following handler/hook descriptions:	566	CLASS. See the next function for an explanation of its arguments.
		567
		568	You can attach to global events by using the C<cf::global> class.
		569
		570	Example, log all player logins:
		571
		572	cf::player->attach (
		573	on_login => sub {
		574	my ($pl) = @_;
		575	...
		576	},
		577	);
		578
		579	Example, attach to the jeweler skill:
		580
		581	cf::object->attach (
		582	type => cf::SKILL,
		583	subtype => cf::SK_JEWELER,
		584	on_use_skill => sub {
		585	my ($sk, $ob, $part, $dir, $msg) = @_;
		586	...
		587	},
		588	);
		589
		590	=item cf::CLASS::attachment $name, ...
		591
		592	Register an attachment by C<$name> through which attachable objects of the
		593	given CLASS can refer to this attachment.
		594
		595	Some classes such as crossfire maps and objects can specify attachments
		596	that are attached at load/instantiate time, thus the need for a name.
		597
		598	These calls expect any number of the following handler/hook descriptions:
168		599
169	=over 4	600	=over 4
170		601
171	=item prio => $number	602	=item prio => $number
172		603
…		…
174	by another C<prio> setting). Lower priority handlers get executed	605	by another C<prio> setting). Lower priority handlers get executed
175	earlier. The default priority is C<0>, and many built-in handlers are	606	earlier. The default priority is C<0>, and many built-in handlers are
176	registered at priority C<-1000>, so lower priorities should not be used	607	registered at priority C<-1000>, so lower priorities should not be used
177	unless you know what you are doing.	608	unless you know what you are doing.
178		609
		610	=item type => $type
		611
		612	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		613	given type of objects only (the additional parameter C<subtype> can be
		614	used to further limit to the given subtype).
		615
179	=item on_I<event> => \&cb	616	=item on_I<event> => \&cb
180		617
181	Call the given code reference whenever the named event happens (event is	618	Call the given code reference whenever the named event happens (event is
182	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	619	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
183	handlers are recognised generally depends on the type of object these	620	handlers are recognised generally depends on the type of object these
…		…
192	package and register them. Only handlers for eevents supported by the	629	package and register them. Only handlers for eevents supported by the
193	object/class are recognised.	630	object/class are recognised.
194		631
195	=back	632	=back
196		633
197	=item cf::attach_to_type $object_type, $subtype, ...	634	Example, define an attachment called "sockpuppet" that calls the given
		635	event handler when a monster attacks:
198		636
199	Attach handlers for a specific object type (e.g. TRANSPORT) and	637	cf::object::attachment sockpuppet =>
200	subtype. If C<$subtype> is zero or undef, matches all objects of the given	638	on_skill_attack => sub {
201	type.	639	my ($self, $victim) = @_;
202		640	...
203	=item cf::attach_to_objects ...
204
205	Attach handlers to all objects. Do not use this except for debugging or
206	very rare events, as handlers are (obviously) called for I<all> objects in
207	the game.
208
209	=item cf::attach_to_players ...
210
211	Attach handlers to all players.
212
213	=item cf::attach_to_maps ...
214
215	Attach handlers to all maps.
216
217	=item cf:register_attachment $name, ...
218
219	Register an attachment by name through which objects can refer to this
220	attachment.
221
222	=item cf:register_player_attachment $name, ...
223
224	Register an attachment by name through which players can refer to this
225	attachment.
226
227	=item cf:register_map_attachment $name, ...
228
229	Register an attachment by name through which maps can refer to this
230	attachment.
231
232	=cut
233
234	# the following variables are defined in .xs and must not be re-created
235	our @CB_GLOBAL = (); # registry for all global events
236	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
237	our @CB_PLAYER = ();
238	our @CB_TYPE = (); # registry for type (cf-object class) based events
239	our @CB_MAP = ();
240
241	my %attachment;
242
243	sub _attach_cb($\%$$$) {
244	my ($registry, $undo, $event, $prio, $cb) = @_;
245
246	use sort 'stable';
247
248	$cb = [$prio, $cb];
249
250	@{$registry->[$event]} = sort
251	{ $a->[0] cmp $b->[0] }
252	@{$registry->[$event] || []}, $cb;
253
254	push @{$undo->{cb}}, [$event, $cb];
255	}
256
257	# attach handles attaching event callbacks
258	# the only thing the caller has to do is pass the correct
259	# registry (== where the callback attaches to).
260	sub _attach(\@$@) {
261	my ($registry, $klass, @arg) = @_;
262
263	my $prio = 0;
264
265	my %undo = (
266	registry => $registry,
267	cb => [],
268	);
269
270	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
271
272	while (@arg) {
273	my $type = shift @arg;
274
275	if ($type eq "prio") {
276	$prio = shift @arg;
277
278	} elsif ($type eq "package") {
279	my $pkg = shift @arg;
280
281	while (my ($name, $id) = each %cb_id) {
282	if (my $cb = $pkg->can ($name)) {
283	_attach_cb $registry, %undo, $id, $prio, $cb;
284	}
285	}	641	}
286
287	} elsif (exists $cb_id{$type}) {
288	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
289
290	} elsif (ref $type) {
291	warn "attaching objects not supported, ignoring.\n";
292
293	} else {
294	shift @arg;
295	warn "attach argument '$type' not supported, ignoring.\n";
296	}
297	}
298
299	\%undo
300	}
301
302	sub _attach_attachment {
303	my ($obj, $name, %arg) = @_;
304
305	return if exists $obj->{_attachment}{$name};
306
307	my $res;
308
309	if (my $attach = $attachment{$name}) {
310	my $registry = $obj->registry;
311
312	for (@$attach) {
313	my ($klass, @attach) = @$_;
314	$res = _attach @$registry, $klass, @attach;
315	}
316
317	$obj->{$name} = \%arg;
318	} else {
319	warn "object uses attachment '$name' that is not available, postponing.\n";
320	}
321
322	$obj->{_attachment}{$name} = undef;
323
324	$res->{attachment} = $name;
325	$res
326	}
327
328	*cf::object::attach =
329	*cf::player::attach =
330	*cf::map::attach = sub {
331	my ($obj, $name, %arg) = @_;
332
333	_attach_attachment $obj, $name, %arg;
334	};
335
336	# all those should be optimised
337	*cf::object::detach =
338	*cf::player::detach =
339	*cf::map::detach = sub {
340	my ($obj, $name) = @_;
341
342	delete $obj->{_attachment}{$name};
343	reattach ($obj);
344	};
345
346	*cf::object::attached =
347	*cf::player::attached =
348	*cf::map::attached = sub {
349	my ($obj, $name) = @_;
350
351	exists $obj->{_attachment}{$name}
352	};
353
354	sub attach_global {
355	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
356	}
357
358	sub attach_to_type {
359	my $type = shift;
360	my $subtype = shift;
361
362	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
363	}
364
365	sub attach_to_objects {
366	_attach @CB_OBJECT, KLASS_OBJECT, @_
367	}
368
369	sub attach_to_players {
370	_attach @CB_PLAYER, KLASS_PLAYER, @_
371	}
372
373	sub attach_to_maps {
374	_attach @CB_MAP, KLASS_MAP, @_
375	}
376
377	sub register_attachment {
378	my $name = shift;
379
380	$attachment{$name} = [[KLASS_OBJECT, @_]];
381	}
382
383	sub register_player_attachment {
384	my $name = shift;
385
386	$attachment{$name} = [[KLASS_PLAYER, @_]];
387	}
388
389	sub register_map_attachment {
390	my $name = shift;
391
392	$attachment{$name} = [[KLASS_MAP, @_]];
393	}
394
395	our $override;
396	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
397
398	sub override {
399	$override = 1;
400	@invoke_results = ();
401	}
402
403	sub do_invoke {
404	my $event = shift;
405	my $callbacks = shift;
406
407	@invoke_results = ();
408
409	local $override;
410
411	for (@$callbacks) {
412	eval { &{$_->[1]} };
413
414	if ($@) {
415	warn "$@";
416	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
417	override;
418	}
419
420	return 1 if $override;
421	}
422
423	0	642	}
424	}
425		643
426	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	644	=item $attachable->valid
427
428	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
429
430	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
431
432	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
433
434	Generate a global/object/player/map-specific event with the given arguments.
435
436	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
437	removed in future versions), and there is no public API to access override
438	results (if you must, access C<@cf::invoke_results> directly).
439
440	=back
441
442	=cut
443
444	#############################################################################
445
446	=head2 METHODS VALID FOR ALL CORE OBJECTS
447
448	=over 4
449
450	=item $object->valid, $player->valid, $map->valid
451		645
452	Just because you have a perl object does not mean that the corresponding	646	Just because you have a perl object does not mean that the corresponding
453	C-level object still exists. If you try to access an object that has no	647	C-level object still exists. If you try to access an object that has no
454	valid C counterpart anymore you get an exception at runtime. This method	648	valid C counterpart anymore you get an exception at runtime. This method
455	can be used to test for existence of the C object part without causing an	649	can be used to test for existence of the C object part without causing an
456	exception.	650	exception.
457		651
		652	=cut
		653
		654	# the following variables are defined in .xs and must not be re-created
		655	our @CB_GLOBAL = (); # registry for all global events
		656	our @CB_ATTACHABLE = (); # registry for all attachables
		657	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		658	our @CB_PLAYER = ();
		659	our @CB_CLIENT = ();
		660	our @CB_TYPE = (); # registry for type (cf-object class) based events
		661	our @CB_MAP = ();
		662
		663	my %attachment;
		664
		665	sub _attach_cb($$$$) {
		666	my ($registry, $event, $prio, $cb) = @_;
		667
		668	use sort 'stable';
		669
		670	$cb = [$prio, $cb];
		671
		672	@{$registry->[$event]} = sort
		673	{ $a->[0] cmp $b->[0] }
		674	@{$registry->[$event] || []}, $cb;
		675	}
		676
		677	# hack
		678	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		679
		680	# attach handles attaching event callbacks
		681	# the only thing the caller has to do is pass the correct
		682	# registry (== where the callback attaches to).
		683	sub _attach {
		684	my ($registry, $klass, @arg) = @_;
		685
		686	my $object_type;
		687	my $prio = 0;
		688	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		689
		690	#TODO: get rid of this hack
		691	if ($attachable_klass{$klass}) {
		692	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		693	}
		694
		695	while (@arg) {
		696	my $type = shift @arg;
		697
		698	if ($type eq "prio") {
		699	$prio = shift @arg;
		700
		701	} elsif ($type eq "type") {
		702	$object_type = shift @arg;
		703	$registry = $CB_TYPE[$object_type] ||= [];
		704
		705	} elsif ($type eq "subtype") {
		706	defined $object_type or Carp::croak "subtype specified without type";
		707	my $object_subtype = shift @arg;
		708	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		709
		710	} elsif ($type eq "package") {
		711	my $pkg = shift @arg;
		712
		713	while (my ($name, $id) = each %cb_id) {
		714	if (my $cb = $pkg->can ($name)) {
		715	_attach_cb $registry, $id, $prio, $cb;
		716	}
		717	}
		718
		719	} elsif (exists $cb_id{$type}) {
		720	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		721
		722	} elsif (ref $type) {
		723	warn "attaching objects not supported, ignoring.\n";
		724
		725	} else {
		726	shift @arg;
		727	warn "attach argument '$type' not supported, ignoring.\n";
		728	}
		729	}
		730	}
		731
		732	sub _object_attach {
		733	my ($obj, $name, %arg) = @_;
		734
		735	return if exists $obj->{_attachment}{$name};
		736
		737	if (my $attach = $attachment{$name}) {
		738	my $registry = $obj->registry;
		739
		740	for (@$attach) {
		741	my ($klass, @attach) = @$_;
		742	_attach $registry, $klass, @attach;
		743	}
		744
		745	$obj->{$name} = \%arg;
		746	} else {
		747	warn "object uses attachment '$name' that is not available, postponing.\n";
		748	}
		749
		750	$obj->{_attachment}{$name} = undef;
		751	}
		752
		753	sub cf::attachable::attach {
		754	if (ref $_[0]) {
		755	_object_attach @_;
		756	} else {
		757	_attach shift->_attach_registry, @_;
		758	}
		759	};
		760
		761	# all those should be optimised
		762	sub cf::attachable::detach {
		763	my ($obj, $name) = @_;
		764
		765	if (ref $obj) {
		766	delete $obj->{_attachment}{$name};
		767	reattach ($obj);
		768	} else {
		769	Carp::croak "cannot, currently, detach class attachments";
		770	}
		771	};
		772
		773	sub cf::attachable::attached {
		774	my ($obj, $name) = @_;
		775
		776	exists $obj->{_attachment}{$name}
		777	}
		778
		779	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		780	eval "#line " . __LINE__ . " 'cf.pm'
		781	sub cf::\L$klass\E::_attach_registry {
		782	(\\\@CB_$klass, KLASS_$klass)
		783	}
		784
		785	sub cf::\L$klass\E::attachment {
		786	my \$name = shift;
		787
		788	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		789	}
		790	";
		791	die if $@;
		792	}
		793
		794	our $override;
		795	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		796
		797	sub override {
		798	$override = 1;
		799	@invoke_results = ();
		800	}
		801
		802	sub do_invoke {
		803	my $event = shift;
		804	my $callbacks = shift;
		805
		806	@invoke_results = ();
		807
		808	local $override;
		809
		810	for (@$callbacks) {
		811	eval { &{$_->[1]} };
		812
		813	if ($@) {
		814	warn "$@";
		815	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		816	override;
		817	}
		818
		819	return 1 if $override;
		820	}
		821
		822	0
		823	}
		824
		825	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		826
		827	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		828
		829	Generate an object-specific event with the given arguments.
		830
		831	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		832	removed in future versions), and there is no public API to access override
		833	results (if you must, access C<@cf::invoke_results> directly).
		834
458	=back	835	=back
459		836
460	=cut	837	=cut
461
462	*cf::object::valid =
463	*cf::player::valid =
464	*cf::map::valid = \&cf::_valid;
465		838
466	#############################################################################	839	#############################################################################
467	# object support	840	# object support
468		841
469	sub instantiate {
470	my ($obj, $data) = @_;
471
472	$data = from_json $data;
473
474	for (@$data) {
475	my ($name, $args) = @$_;
476
477	$obj->attach ($name, %{$args || {} });
478	}
479	}
480
481	# basically do the same as instantiate, without calling instantiate
482	sub reattach {	842	sub reattach {
		843	# basically do the same as instantiate, without calling instantiate
483	my ($obj) = @_;	844	my ($obj) = @_;
		845
484	my $registry = $obj->registry;	846	my $registry = $obj->registry;
485		847
486	@$registry = ();	848	@$registry = ();
487		849
488	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	850	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
489		851
490	for my $name (keys %{ $obj->{_attachment} || {} }) {	852	for my $name (keys %{ $obj->{_attachment} || {} }) {
491	if (my $attach = $attachment{$name}) {	853	if (my $attach = $attachment{$name}) {
492	for (@$attach) {	854	for (@$attach) {
493	my ($klass, @attach) = @$_;	855	my ($klass, @attach) = @$_;
494	_attach @$registry, $klass, @attach;	856	_attach $registry, $klass, @attach;
495	}	857	}
496	} else {	858	} else {
497	warn "object uses attachment '$name' that is not available, postponing.\n";	859	warn "object uses attachment '$name' that is not available, postponing.\n";
498	}	860	}
499	}	861	}
500	}	862	}
501		863
502	sub object_freezer_save {	864	cf::attachable->attach (
503	my ($filename, $rdata, $objs) = @_;
504
505	if (length $$rdata) {
506	warn sprintf "saving %s (%d,%d)\n",
507	$filename, length $$rdata, scalar @$objs;
508
509	if (open my $fh, ">:raw", "$filename~") {
510	chmod SAVE_MODE, $fh;
511	syswrite $fh, $$rdata;
512	close $fh;
513
514	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
517	close $fh;
518	rename "$filename.pst~", "$filename.pst";
519	} else {
520	unlink "$filename.pst";
521	}
522
523	rename "$filename~", $filename;
524	} else {
525	warn "FATAL: $filename~: $!\n";
526	}
527	} else {
528	unlink $filename;
529	unlink "$filename.pst";
530	}
531	}
532
533	sub object_freezer_as_string {
534	my ($rdata, $objs) = @_;
535
536	use Data::Dumper;
537
538	$$rdata . Dumper $objs
539	}
540
541	sub object_thawer_load {
542	my ($filename) = @_;
543
544	local $/;
545
546	my $av;
547
548	#TODO: use sysread etc.
549	if (open my $data, "<:raw:perlio", $filename) {
550	$data = <$data>;
551	if (open my $pst, "<:raw:perlio", "$filename.pst") {
552	$av = eval { (Storable::thaw <$pst>)->{objs} };
553	}
554	return ($data, $av);
555	}
556
557	()
558	}
559
560	attach_to_objects
561	prio => -1000000,	865	prio => -1000000,
		866	on_instantiate => sub {
		867	my ($obj, $data) = @_;
		868
		869	$data = from_json $data;
		870
		871	for (@$data) {
		872	my ($name, $args) = @$_;
		873
		874	$obj->attach ($name, %{$args || {} });
		875	}
		876	},
		877	on_reattach => \&reattach,
562	on_clone => sub {	878	on_clone => sub {
563	my ($src, $dst) = @_;	879	my ($src, $dst) = @_;
564		880
565	@{$dst->registry} = @{$src->registry};	881	@{$dst->registry} = @{$src->registry};
566		882
567	%$dst = %$src;	883	%$dst = %$src;
568		884
569	%{$dst->{_attachment}} = %{$src->{_attachment}}	885	%{$dst->{_attachment}} = %{$src->{_attachment}}
570	if exists $src->{_attachment};	886	if exists $src->{_attachment};
571	},	887	},
572	;	888	);
		889
		890	sub object_freezer_save {
		891	my ($filename, $rdata, $objs) = @_;
		892
		893	sync_job {
		894	if (length $$rdata) {
		895	warn sprintf "saving %s (%d,%d)\n",
		896	$filename, length $$rdata, scalar @$objs;
		897
		898	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		899	chmod SAVE_MODE, $fh;
		900	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		901	aio_fsync $fh;
		902	close $fh;
		903
		904	if (@$objs) {
		905	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		906	chmod SAVE_MODE, $fh;
		907	my $data = Storable::nfreeze { version => 1, objs => $objs };
		908	aio_write $fh, 0, (length $data), $data, 0;
		909	aio_fsync $fh;
		910	close $fh;
		911	aio_rename "$filename.pst~", "$filename.pst";
		912	}
		913	} else {
		914	aio_unlink "$filename.pst";
		915	}
		916
		917	aio_rename "$filename~", $filename;
		918	} else {
		919	warn "FATAL: $filename~: $!\n";
		920	}
		921	} else {
		922	aio_unlink $filename;
		923	aio_unlink "$filename.pst";
		924	}
		925	}
		926	}
		927
		928	sub object_freezer_as_string {
		929	my ($rdata, $objs) = @_;
		930
		931	use Data::Dumper;
		932
		933	$$rdata . Dumper $objs
		934	}
		935
		936	sub object_thawer_load {
		937	my ($filename) = @_;
		938
		939	my ($data, $av);
		940
		941	(aio_load $filename, $data) >= 0
		942	or return;
		943
		944	unless (aio_stat "$filename.pst") {
		945	(aio_load "$filename.pst", $av) >= 0
		946	or return;
		947	$av = eval { (Storable::thaw $av)->{objs} };
		948	}
		949
		950	warn sprintf "loading %s (%d)\n",
		951	$filename, length $data, scalar @{$av || []};#d#
		952	return ($data, $av);
		953	}
573		954
574	#############################################################################	955	#############################################################################
575	# old plug-in events	956	# command handling &c
576		957
577	sub inject_event {	958	=item cf::register_command $name => \&callback($ob,$args);
578	my $extension = shift;
579	my $event_code = shift;
580		959
581	my $cb = $hook[$event_code]{$extension}	960	Register a callback for execution when the client sends the user command
582	or return;	961	$name.
583		962
584	&$cb	963	=cut
585	}
586
587	sub inject_global_event {
588	my $event = shift;
589
590	my $cb = $hook[$event]
591	or return;
592
593	List::Util::max map &$_, values %$cb
594	}
595
596	sub inject_command {
597	my ($name, $obj, $params) = @_;
598
599	for my $cmd (@{ $command{$name} }) {
600	$cmd->[1]->($obj, $params);
601	}
602
603	-1
604	}
605		964
606	sub register_command {	965	sub register_command {
607	my ($name, $time, $cb) = @_;	966	my ($name, $cb) = @_;
608		967
609	my $caller = caller;	968	my $caller = caller;
610	#warn "registering command '$name/$time' to '$caller'";	969	#warn "registering command '$name/$time' to '$caller'";
611		970
612	push @{ $command{$name} }, [$time, $cb, $caller];	971	push @{ $COMMAND{$name} }, [$caller, $cb];
613	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
614	}	972	}
		973
		974	=item cf::register_extcmd $name => \&callback($pl,$packet);
		975
		976	Register a callbackf ro execution when the client sends an extcmd packet.
		977
		978	If the callback returns something, it is sent back as if reply was being
		979	called.
		980
		981	=cut
615		982
616	sub register_extcmd {	983	sub register_extcmd {
617	my ($name, $cb) = @_;	984	my ($name, $cb) = @_;
618		985
619	my $caller = caller;	986	$EXTCMD{$name} = $cb;
620	#warn "registering extcmd '$name' to '$caller'";
621
622	$extcmd{$name} = [$cb, $caller];
623	}	987	}
624		988
625	sub register {	989	cf::player->attach (
626	my ($base, $pkg) = @_;	990	on_command => sub {
		991	my ($pl, $name, $params) = @_;
627		992
628	#TODO	993	my $cb = $COMMAND{$name}
629	}	994	or return;
		995
		996	for my $cmd (@$cb) {
		997	$cmd->[1]->($pl->ob, $params);
		998	}
		999
		1000	cf::override;
		1001	},
		1002	on_extcmd => sub {
		1003	my ($pl, $buf) = @_;
		1004
		1005	my $msg = eval { from_json $buf };
		1006
		1007	if (ref $msg) {
		1008	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		1009	if (my %reply = $cb->($pl, $msg)) {
		1010	$pl->ext_reply ($msg->{msgid}, %reply);
		1011	}
		1012	}
		1013	} else {
		1014	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		1015	}
		1016
		1017	cf::override;
		1018	},
		1019	);
630		1020
631	sub load_extension {	1021	sub load_extension {
632	my ($path) = @_;	1022	my ($path) = @_;
633		1023
634	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1024	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
635	my $base = $1;	1025	my $base = $1;
636	my $pkg = $1;	1026	my $pkg = $1;
637	$pkg =~ s/[^[:word:]]/_/g;	1027	$pkg =~ s/[^[:word:]]/_/g;
638	$pkg = "ext::$pkg";	1028	$pkg = "ext::$pkg";
639		1029
640	warn "loading '$path' into '$pkg'\n";	1030	warn "... loading '$path' into '$pkg'\n";
641		1031
642	open my $fh, "<:utf8", $path	1032	open my $fh, "<:utf8", $path
643	or die "$path: $!";	1033	or die "$path: $!";
644		1034
645	my $source =	1035	my $source =
…		…
650		1040
651	eval $source	1041	eval $source
652	or die $@ ? "$path: $@\n"	1042	or die $@ ? "$path: $@\n"
653	: "extension disabled.\n";	1043	: "extension disabled.\n";
654		1044
655	push @exts, $pkg;	1045	push @EXTS, $pkg;
656	$ext_pkg{$base} = $pkg;
657
658	# no strict 'refs';
659	# @{"$pkg\::ISA"} = ext::;
660
661	register $base, $pkg;
662	}
663
664	sub unload_extension {
665	my ($pkg) = @_;
666
667	warn "removing extension $pkg\n";
668
669	# remove hooks
670	#TODO
671	# for my $idx (0 .. $#PLUGIN_EVENT) {
672	# delete $hook[$idx]{$pkg};
673	# }
674
675	# remove commands
676	for my $name (keys %command) {
677	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
678
679	if (@cb) {
680	$command{$name} = \@cb;
681	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
682	} else {
683	delete $command{$name};
684	delete $COMMAND{"$name\000"};
685	}
686	}
687
688	# remove extcmds
689	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
690	delete $extcmd{$name};
691	}
692
693	if (my $cb = $pkg->can ("unload")) {
694	eval {
695	$cb->($pkg);
696	1
697	} or warn "$pkg unloaded, but with errors: $@";
698	}
699
700	Symbol::delete_package $pkg;
701	}	1046	}
702		1047
703	sub load_extensions {	1048	sub load_extensions {
704	my $LIBDIR = maps_directory "perl";
705
706	for my $ext (<$LIBDIR/*.ext>) {	1049	for my $ext (<$LIBDIR/*.ext>) {
707	next unless -r $ext;	1050	next unless -r $ext;
708	eval {	1051	eval {
709	load_extension $ext;	1052	load_extension $ext;
710	1	1053	1
711	} or warn "$ext not loaded: $@";	1054	} or warn "$ext not loaded: $@";
712	}	1055	}
713	}	1056	}
714		1057
715	#############################################################################	1058	#############################################################################
716	# extcmd framework, basically convert ext <msg>
717	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
718
719	attach_to_players
720	on_extcmd => sub {
721	my ($pl, $buf) = @_;
722
723	my $msg = eval { from_json $buf };
724
725	if (ref $msg) {
726	if (my $cb = $extcmd{$msg->{msgtype}}) {
727	if (my %reply = $cb->[0]->($pl, $msg)) {
728	$pl->ext_reply ($msg->{msgid}, %reply);
729	}
730	}
731	} else {
732	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
733	}
734
735	cf::override;
736	},
737	;
738
739	#############################################################################
740	# load/save/clean perl data associated with a map	1059	# load/save/clean perl data associated with a map
741		1060
742	*cf::mapsupport::on_clean = sub {	1061	*cf::mapsupport::on_clean = sub {
743	my ($map) = @_;	1062	my ($map) = @_;
744		1063
…		…
746	defined $path or return;	1065	defined $path or return;
747		1066
748	unlink "$path.pst";	1067	unlink "$path.pst";
749	};	1068	};
750		1069
751	attach_to_maps prio => -10000, package => cf::mapsupport::;	1070	cf::map->attach (prio => -10000, package => cf::mapsupport::);
752		1071
753	#############################################################################	1072	#############################################################################
754	# load/save perl data associated with player->ob objects
755
756	sub all_objects(@) {
757	@_, map all_objects ($_->inv), @_
758	}
759
760	# TODO: compatibility cruft, remove when no longer needed
761	attach_to_players
762	on_load => sub {
763	my ($pl, $path) = @_;
764
765	for my $o (all_objects $pl->ob) {
766	if (my $value = $o->get_ob_key_value ("_perl_data")) {
767	$o->set_ob_key_value ("_perl_data");
768
769	%$o = %{ Storable::thaw pack "H*", $value };
770	}
771	}
772	},
773	;
774
775	#############################################################################
776		1073
777	=head2 CORE EXTENSIONS	1074	=head2 CORE EXTENSIONS
778		1075
779	Functions and methods that extend core crossfire objects.	1076	Functions and methods that extend core crossfire objects.
780		1077
		1078	=cut
		1079
		1080	package cf::player;
		1081
		1082	use Coro::AIO;
		1083
		1084	=head3 cf::player
		1085
781	=over 4	1086	=over 4
782		1087
783	=item cf::player::exists $login	1088	=item cf::player::find $login
784		1089
785	Returns true when the given account exists.	1090	Returns the given player object, loading it if necessary (might block).
786		1091
787	=cut	1092	=cut
788		1093
789	sub cf::player::exists($) {	1094	sub playerdir($) {
790	cf::player::find $_[0]	1095	cf::localdir
791	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1096	. "/"
		1097	. cf::playerdir
		1098	. "/"
		1099	. (ref $_[0] ? $_[0]->ob->name : $_[0])
792	}	1100	}
		1101
		1102	sub path($) {
		1103	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1104
		1105	(playerdir $login) . "/$login.pl"
		1106	}
		1107
		1108	sub find_active($) {
		1109	$cf::PLAYER{$_[0]}
		1110	and $cf::PLAYER{$_[0]}->active
		1111	and $cf::PLAYER{$_[0]}
		1112	}
		1113
		1114	sub exists($) {
		1115	my ($login) = @_;
		1116
		1117	$cf::PLAYER{$login}
		1118	or cf::sync_job { !aio_stat $login }
		1119	}
		1120
		1121	sub find($) {
		1122	return $cf::PLAYER{$_[0]} || do {
		1123	my $login = $_[0];
		1124
		1125	my $guard = cf::lock_acquire "user_find:$login";
		1126
		1127	$cf::PLAYER{$_[0]} || do {
		1128	my $pl = load_pl path $login
		1129	or return;
		1130	$cf::PLAYER{$login} = $pl
		1131	}
		1132	}
		1133	}
		1134
		1135	sub save($) {
		1136	my ($pl) = @_;
		1137
		1138	return if $pl->{deny_save};
		1139
		1140	my $path = path $pl;
		1141	my $guard = cf::lock_acquire "user_save:$path";
		1142
		1143	return if $pl->{deny_save};
		1144
		1145	aio_mkdir playerdir $pl, 0770;
		1146	$pl->{last_save} = $cf::RUNTIME;
		1147
		1148	$pl->save_pl ($path);
		1149	Coro::cede;
		1150	}
		1151
		1152	sub new($) {
		1153	my ($login) = @_;
		1154
		1155	my $self = create;
		1156
		1157	$self->ob->name ($login);
		1158	$self->{deny_save} = 1;
		1159
		1160	$cf::PLAYER{$login} = $self;
		1161
		1162	$self
		1163	}
		1164
		1165	=item $pl->quit_character
		1166
		1167	Nukes the player without looking back. If logged in, the connection will
		1168	be destroyed. May block for a long time.
		1169
		1170	=cut
		1171
		1172	sub quit_character {
		1173	my ($pl) = @_;
		1174
		1175	$pl->{deny_save} = 1;
		1176	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1177
		1178	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1179	$pl->deactivate;
		1180	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1181	$pl->ns->destroy if $pl->ns;
		1182
		1183	my $path = playerdir $pl;
		1184	my $temp = "$path~$cf::RUNTIME~deleting~";
		1185	aio_rename $path, $temp;
		1186	delete $cf::PLAYER{$pl->ob->name};
		1187	$pl->destroy;
		1188	IO::AIO::aio_rmtree $temp;
		1189	}
		1190
		1191	=item cf::player::list_logins
		1192
		1193	Returns am arrayref of all valid playernames in the system, can take a
		1194	while and may block, so not sync_job-capable, ever.
		1195
		1196	=cut
		1197
		1198	sub list_logins {
		1199	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1200	or return [];
		1201
		1202	my @logins;
		1203
		1204	for my $login (@$dirs) {
		1205	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1206	aio_read $fh, 0, 512, my $buf, 0 or next;
		1207	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1208
		1209	utf8::decode $login;
		1210	push @logins, $login;
		1211	}
		1212
		1213	\@logins
		1214	}
		1215
		1216	=item $player->maps
		1217
		1218	Returns an arrayref of cf::path's of all maps that are private for this
		1219	player. May block.
		1220
		1221	=cut
		1222
		1223	sub maps($) {
		1224	my ($pl) = @_;
		1225
		1226	my $files = aio_readdir playerdir $pl
		1227	or return;
		1228
		1229	my @paths;
		1230
		1231	for (@$files) {
		1232	utf8::decode $_;
		1233	next if /\.(?:pl|pst)$/;
		1234	next unless /^$PATH_SEP/o;
		1235
		1236	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
		1237	}
		1238
		1239	\@paths
		1240	}
		1241
		1242	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1243
		1244	Sends an ext reply to the player.
		1245
		1246	=cut
		1247
		1248	sub ext_reply($$$%) {
		1249	my ($self, $id, %msg) = @_;
		1250
		1251	$msg{msgid} = $id;
		1252
		1253	$self->send ("ext " . cf::to_json \%msg);
		1254	}
		1255
		1256	package cf;
		1257
		1258	=back
		1259
		1260
		1261	=head3 cf::map
		1262
		1263	=over 4
		1264
		1265	=cut
		1266
		1267	package cf::map;
		1268
		1269	use Fcntl;
		1270	use Coro::AIO;
		1271
		1272	our $MAX_RESET = 3600;
		1273	our $DEFAULT_RESET = 3000;
		1274
		1275	sub generate_random_map {
		1276	my ($path, $rmp) = @_;
		1277
		1278	# mit "rum" bekleckern, nicht
		1279	cf::map::_create_random_map (
		1280	$path,
		1281	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1282	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1283	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1284	$rmp->{exit_on_final_map},
		1285	$rmp->{xsize}, $rmp->{ysize},
		1286	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1287	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1288	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1289	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1290	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1291	(cf::region::find $rmp->{region}), $rmp->{custom}
		1292	)
		1293	}
		1294
		1295	# and all this just because we cannot iterate over
		1296	# all maps in C++...
		1297	sub change_all_map_light {
		1298	my ($change) = @_;
		1299
		1300	$_->change_map_light ($change)
		1301	for grep $_->outdoor, values %cf::MAP;
		1302	}
		1303
		1304	sub load_map_header($) {
		1305	my ($path) = @_;
		1306
		1307	utf8::encode $path;
		1308	aio_open $path, O_RDONLY, 0
		1309	or return;
		1310
		1311	my $map = cf::map::new
		1312	or return;
		1313
		1314	# for better error messages only, will be overwritten later
		1315	$map->path ($path);
		1316
		1317	$map->load_header ($path)
		1318	or return;
		1319
		1320	$map->{load_path} = $path;
		1321
		1322	$map
		1323	}
		1324
		1325	sub find;
		1326	sub find {
		1327	my ($path, $origin) = @_;
		1328
		1329	#warn "find<$path,$origin>\n";#d#
		1330
		1331	$path = new cf::path $path, $origin && $origin->path;
		1332	my $key = $path->as_string;
		1333
		1334	cf::lock_wait "map_find:$key";
		1335
		1336	$cf::MAP{$key} || do {
		1337	my $guard = cf::lock_acquire "map_find:$key";
		1338
		1339	# do it the slow way
		1340	my $map = $path->load_temp;
		1341
		1342	Coro::cede;
		1343
		1344	if ($map) {
		1345	$map->last_access ((delete $map->{last_access})
		1346	|| $cf::RUNTIME); #d#
		1347	# safety
		1348	$map->{instantiate_time} = $cf::RUNTIME
		1349	if $map->{instantiate_time} > $cf::RUNTIME;
		1350	} else {
		1351	$map = $path->load_orig
		1352	or return;
		1353
		1354	$map->{load_original} = 1;
		1355	$map->{instantiate_time} = $cf::RUNTIME;
		1356	$map->last_access ($cf::RUNTIME);
		1357	$map->instantiate;
		1358
		1359	# per-player maps become, after loading, normal maps
		1360	$map->per_player (0) if $path->{user_rel};
		1361	}
		1362
		1363	$map->path ($key);
		1364	$map->{path} = $path;
		1365	$map->{last_save} = $cf::RUNTIME;
		1366
		1367	Coro::cede;
		1368
		1369	if ($map->should_reset) {
		1370	$map->reset;
		1371	undef $guard;
		1372	$map = find $path
		1373	or return;
		1374	}
		1375
		1376	$cf::MAP{$key} = $map
		1377	}
		1378	}
		1379
		1380	sub load {
		1381	my ($self) = @_;
		1382
		1383	my $path = $self->{path};
		1384	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1385
		1386	return if $self->in_memory != cf::MAP_SWAPPED;
		1387
		1388	$self->in_memory (cf::MAP_LOADING);
		1389
		1390	$self->alloc;
		1391	$self->load_objects ($self->{load_path}, 1)
		1392	or return;
		1393
		1394	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1395	if delete $self->{load_original};
		1396
		1397	if (my $uniq = $path->uniq_path) {
		1398	utf8::encode $uniq;
		1399	if (aio_open $uniq, O_RDONLY, 0) {
		1400	$self->clear_unique_items;
		1401	$self->load_objects ($uniq, 0);
		1402	}
		1403	}
		1404
		1405	Coro::cede;
		1406
		1407	# now do the right thing for maps
		1408	$self->link_multipart_objects;
		1409
		1410	if ($self->{path}->is_style_map) {
		1411	$self->{deny_save} = 1;
		1412	$self->{deny_reset} = 1;
		1413	} else {
		1414	$self->decay_objects;
		1415	$self->fix_auto_apply;
		1416	$self->update_buttons;
		1417	$self->set_darkness_map;
		1418	$self->difficulty ($self->estimate_difficulty)
		1419	unless $self->difficulty;
		1420	$self->activate;
		1421	}
		1422
		1423	Coro::cede;
		1424
		1425	$self->in_memory (cf::MAP_IN_MEMORY);
		1426	}
		1427
		1428	# find and load all maps in the 3x3 area around a map
		1429	sub load_diag {
		1430	my ($map) = @_;
		1431
		1432	my @diag; # diagonal neighbours
		1433
		1434	for (0 .. 3) {
		1435	my $neigh = $map->tile_path ($_)
		1436	or next;
		1437	$neigh = find $neigh, $map
		1438	or next;
		1439	$neigh->load;
		1440
		1441	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1442	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1443	}
		1444
		1445	for (@diag) {
		1446	my $neigh = find @$_
		1447	or next;
		1448	$neigh->load;
		1449	}
		1450	}
		1451
		1452	sub find_sync {
		1453	my ($path, $origin) = @_;
		1454
		1455	cf::sync_job { find $path, $origin }
		1456	}
		1457
		1458	sub do_load_sync {
		1459	my ($map) = @_;
		1460
		1461	cf::sync_job { $map->load };
		1462	}
		1463
		1464	our %MAP_PREFETCH;
		1465	our $MAP_PREFETCHER = Coro::async {
		1466	while () {
		1467	while (%MAP_PREFETCH) {
		1468	my $key = each %MAP_PREFETCH
		1469	or next;
		1470	my $path = delete $MAP_PREFETCH{$key};
		1471
		1472	my $map = find $path
		1473	or next;
		1474	$map->load;
		1475	}
		1476	Coro::schedule;
		1477	}
		1478	};
		1479
		1480	sub find_async {
		1481	my ($path, $origin) = @_;
		1482
		1483	$path = new cf::path $path, $origin && $origin->path;
		1484	my $key = $path->as_string;
		1485
		1486	if (my $map = $cf::MAP{$key}) {
		1487	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1488	}
		1489
		1490	$MAP_PREFETCH{$key} = $path;
		1491	$MAP_PREFETCHER->ready;
		1492
		1493	()
		1494	}
		1495
		1496	sub save {
		1497	my ($self) = @_;
		1498
		1499	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1500
		1501	$self->{last_save} = $cf::RUNTIME;
		1502
		1503	return unless $self->dirty;
		1504
		1505	my $save = $self->{path}->save_path; utf8::encode $save;
		1506	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1507
		1508	$self->{load_path} = $save;
		1509
		1510	return if $self->{deny_save};
		1511
		1512	local $self->{last_access} = $self->last_access;#d#
		1513
		1514	cf::async {
		1515	$_->contr->save for $self->players;
		1516	};
		1517
		1518	if ($uniq) {
		1519	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1520	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1521	} else {
		1522	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1523	}
		1524	}
		1525
		1526	sub swap_out {
		1527	my ($self) = @_;
		1528
		1529	# save first because save cedes
		1530	$self->save;
		1531
		1532	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1533
		1534	return if $self->players;
		1535	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1536	return if $self->{deny_save};
		1537
		1538	$self->clear;
		1539	$self->in_memory (cf::MAP_SWAPPED);
		1540	}
		1541
		1542	sub reset_at {
		1543	my ($self) = @_;
		1544
		1545	# TODO: safety, remove and allow resettable per-player maps
		1546	return 1e99 if $self->{path}{user_rel};
		1547	return 1e99 if $self->{deny_reset};
		1548
		1549	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1550	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1551
		1552	$time + $to
		1553	}
		1554
		1555	sub should_reset {
		1556	my ($self) = @_;
		1557
		1558	$self->reset_at <= $cf::RUNTIME
		1559	}
		1560
		1561	sub rename {
		1562	my ($self, $new_path) = @_;
		1563
		1564	$self->{path}->unlink_save;
		1565
		1566	delete $cf::MAP{$self->path};
		1567	$self->{path} = new cf::path $new_path;
		1568	$self->path ($self->{path}->as_string);
		1569	$cf::MAP{$self->path} = $self;
		1570
		1571	$self->save;
		1572	}
		1573
		1574	sub reset {
		1575	my ($self) = @_;
		1576
		1577	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1578
		1579	return if $self->players;
		1580	return if $self->{path}{user_rel};#d#
		1581
		1582	warn "resetting map ", $self->path;#d#
		1583
		1584	delete $cf::MAP{$self->path};
		1585
		1586	$_->clear_links_to ($self) for values %cf::MAP;
		1587
		1588	$self->{path}->unlink_save;
		1589	$self->destroy;
		1590	}
		1591
		1592	my $nuke_counter = "aaaa";
		1593
		1594	sub nuke {
		1595	my ($self) = @_;
		1596
		1597	$self->{deny_save} = 1;
		1598	$self->reset_timeout (1);
		1599	$self->rename ("{nuke}/" . ($nuke_counter++));
		1600	$self->reset; # polite request, might not happen
		1601	}
		1602
		1603	sub customise_for {
		1604	my ($map, $ob) = @_;
		1605
		1606	if ($map->per_player) {
		1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1608	}
		1609
		1610	$map
		1611	}
		1612
		1613	=item cf::map::unique_maps
		1614
		1615	Returns an arrayref of cf::path's of all shared maps that have
		1616	instantiated unique items. May block.
		1617
		1618	=cut
		1619
		1620	sub unique_maps() {
		1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1622	or return;
		1623
		1624	my @paths;
		1625
		1626	for (@$files) {
		1627	utf8::decode $_;
		1628	next if /\.pst$/;
		1629	next unless /^$PATH_SEP/o;
		1630
		1631	push @paths, new cf::path $_;
		1632	}
		1633
		1634	\@paths
		1635	}
		1636
		1637	package cf;
		1638
		1639	=back
		1640
		1641	=head3 cf::object
		1642
		1643	=cut
		1644
		1645	package cf::object;
		1646
		1647	=over 4
		1648
		1649	=item $ob->inv_recursive
		1650
		1651	Returns the inventory of the object _and_ their inventories, recursively.
		1652
		1653	=cut
		1654
		1655	sub inv_recursive_;
		1656	sub inv_recursive_ {
		1657	map { $_, inv_recursive_ $_->inv } @_
		1658	}
		1659
		1660	sub inv_recursive {
		1661	inv_recursive_ inv $_[0]
		1662	}
		1663
		1664	package cf;
		1665
		1666	=back
		1667
		1668	=head3 cf::object::player
		1669
		1670	=over 4
793		1671
794	=item $player_object->reply ($npc, $msg[, $flags])	1672	=item $player_object->reply ($npc, $msg[, $flags])
795		1673
796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
797	can be C<undef>. Does the right thing when the player is currently in a	1675	can be C<undef>. Does the right thing when the player is currently in a
…		…
799		1677
800	=cut	1678	=cut
801		1679
802	# rough implementation of a future "reply" method that works	1680	# rough implementation of a future "reply" method that works
803	# with dialog boxes.	1681	# with dialog boxes.
		1682	#TODO: the first argument must go, split into a $npc->reply_to ( method
804	sub cf::object::player::reply($$$;$) {	1683	sub cf::object::player::reply($$$;$) {
805	my ($self, $npc, $msg, $flags) = @_;	1684	my ($self, $npc, $msg, $flags) = @_;
806		1685
807	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
808		1687
…		…
812	$msg = $npc->name . " says: $msg" if $npc;	1691	$msg = $npc->name . " says: $msg" if $npc;
813	$self->message ($msg, $flags);	1692	$self->message ($msg, $flags);
814	}	1693	}
815	}	1694	}
816		1695
817	=item $player->ext_reply ($msgid, $msgtype, %msg)
818
819	Sends an ext reply to the player.
820
821	=cut
822
823	sub cf::player::ext_reply($$$%) {
824	my ($self, $id, %msg) = @_;
825
826	$msg{msgid} = $id;
827
828	$self->send ("ext " . to_json \%msg);
829	}
830
831	=item $player_object->may ("access")	1696	=item $player_object->may ("access")
832		1697
833	Returns wether the given player is authorized to access resource "access"	1698	Returns wether the given player is authorized to access resource "access"
834	(e.g. "command_wizcast").	1699	(e.g. "command_wizcast").
835		1700
…		…
842	(ref $cf::CFG{"may_$access"}	1707	(ref $cf::CFG{"may_$access"}
843	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1708	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
844	: $cf::CFG{"may_$access"})	1709	: $cf::CFG{"may_$access"})
845	}	1710	}
846		1711
847	=cut	1712	=item $player_object->enter_link
848		1713
849	#############################################################################	1714	Freezes the player and moves him/her to a special map (C<{link}>).
		1715
		1716	The player should be reaosnably safe there for short amounts of time. You
		1717	I<MUST> call C<leave_link> as soon as possible, though.
		1718
		1719	=item $player_object->leave_link ($map, $x, $y)
		1720
		1721	Moves the player out of the specila link map onto the given map. If the
		1722	map is not valid (or omitted), the player will be moved back to the
		1723	location he/she was before the call to C<enter_link>, or, if that fails,
		1724	to the emergency map position.
		1725
		1726	Might block.
		1727
		1728	=cut
		1729
		1730	sub cf::object::player::enter_link {
		1731	my ($self) = @_;
		1732
		1733	$self->deactivate_recursive;
		1734
		1735	return if $self->map == $LINK_MAP;
		1736
		1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1738	if $self->map;
		1739
		1740	$self->enter_map ($LINK_MAP, 20, 20);
		1741	}
		1742
		1743	sub cf::object::player::leave_link {
		1744	my ($self, $map, $x, $y) = @_;
		1745
		1746	my $link_pos = delete $self->{_link_pos};
		1747
		1748	unless ($map) {
		1749	# restore original map position
		1750	($map, $x, $y) = @{ $link_pos || [] };
		1751	$map = cf::map::find $map;
		1752
		1753	unless ($map) {
		1754	($map, $x, $y) = @$EMERGENCY_POSITION;
		1755	$map = cf::map::find $map
		1756	or die "FATAL: cannot load emergency map\n";
		1757	}
		1758	}
		1759
		1760	($x, $y) = (-1, -1)
		1761	unless (defined $x) && (defined $y);
		1762
		1763	# use -1 or undef as default coordinates, not 0, 0
		1764	($x, $y) = ($map->enter_x, $map->enter_y)
		1765	if $x <=0 && $y <= 0;
		1766
		1767	$map->load;
		1768	$map->load_diag;
		1769
		1770	return unless $self->contr->active;
		1771	$self->activate_recursive;
		1772	$self->enter_map ($map, $x, $y);
		1773	}
		1774
		1775	cf::player->attach (
		1776	on_logout => sub {
		1777	my ($pl) = @_;
		1778
		1779	# abort map switching before logout
		1780	if ($pl->ob->{_link_pos}) {
		1781	cf::sync_job {
		1782	$pl->ob->leave_link
		1783	};
		1784	}
		1785	},
		1786	on_login => sub {
		1787	my ($pl) = @_;
		1788
		1789	# try to abort aborted map switching on player login :)
		1790	# should happen only on crashes
		1791	if ($pl->ob->{_link_pos}) {
		1792	$pl->ob->enter_link;
		1793	(async {
		1794	# we need this sleep as the login has a concurrent enter_exit running
		1795	# and this sleep increases chances of the player not ending up in scorn
		1796	$pl->ob->reply (undef,
		1797	"There was an internal problem at your last logout, "
		1798	. "the server will try to bring you to your intended destination in a second.",
		1799	cf::NDI_RED);
		1800	Coro::Timer::sleep 1;
		1801	$pl->ob->leave_link;
		1802	})->prio (2);
		1803	}
		1804	},
		1805	);
		1806
		1807	=item $player_object->goto ($path, $x, $y)
		1808
		1809	=cut
		1810
		1811	sub cf::object::player::goto {
		1812	my ($self, $path, $x, $y) = @_;
		1813
		1814	$path = new cf::path $path;
		1815
		1816	$self->enter_link;
		1817
		1818	(async {
		1819	my $map = cf::map::find $path->as_string;
		1820	$map = $map->customise_for ($self) if $map;
		1821
		1822	# warn "entering ", $map->path, " at ($x, $y)\n"
		1823	# if $map;
		1824
		1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1826
		1827	$self->leave_link ($map, $x, $y);
		1828	})->prio (1);
		1829	}
		1830
		1831	=item $player_object->enter_exit ($exit_object)
		1832
		1833	=cut
		1834
		1835	sub parse_random_map_params {
		1836	my ($spec) = @_;
		1837
		1838	my $rmp = { # defaults
		1839	xsize => 10,
		1840	ysize => 10,
		1841	};
		1842
		1843	for (split /\n/, $spec) {
		1844	my ($k, $v) = split /\s+/, $_, 2;
		1845
		1846	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1847	}
		1848
		1849	$rmp
		1850	}
		1851
		1852	sub prepare_random_map {
		1853	my ($exit) = @_;
		1854
		1855	# all this does is basically replace the /! path by
		1856	# a new random map path (?random/...) with a seed
		1857	# that depends on the exit object
		1858
		1859	my $rmp = parse_random_map_params $exit->msg;
		1860
		1861	if ($exit->map) {
		1862	$rmp->{region} = $exit->map->region_name;
		1863	$rmp->{origin_map} = $exit->map->path;
		1864	$rmp->{origin_x} = $exit->x;
		1865	$rmp->{origin_y} = $exit->y;
		1866	}
		1867
		1868	$rmp->{random_seed} ||= $exit->random_seed;
		1869
		1870	my $data = cf::to_json $rmp;
		1871	my $md5 = Digest::MD5::md5_hex $data;
		1872
		1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1874	aio_write $fh, 0, (length $data), $data, 0;
		1875
		1876	$exit->slaying ("?random/$md5");
		1877	$exit->msg (undef);
		1878	}
		1879	}
		1880
		1881	sub cf::object::player::enter_exit {
		1882	my ($self, $exit) = @_;
		1883
		1884	return unless $self->type == cf::PLAYER;
		1885
		1886	$self->enter_link;
		1887
		1888	(async {
		1889	$self->deactivate_recursive; # just to be sure
		1890	unless (eval {
		1891	prepare_random_map $exit
		1892	if $exit->slaying eq "/!";
		1893
		1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1896
		1897	1;
		1898	}) {
		1899	$self->message ("Something went wrong deep within the crossfire server. "
		1900	. "I'll try to bring you back to the map you were before. "
		1901	. "Please report this to the dungeon master!",
		1902	cf::NDI_UNIQUE | cf::NDI_RED);
		1903
		1904	warn "ERROR in enter_exit: $@";
		1905	$self->leave_link;
		1906	}
		1907	})->prio (1);
		1908	}
		1909
		1910	=head3 cf::client
		1911
		1912	=over 4
		1913
		1914	=item $client->send_drawinfo ($text, $flags)
		1915
		1916	Sends a drawinfo packet to the client. Circumvents output buffering so
		1917	should not be used under normal circumstances.
		1918
		1919	=cut
		1920
		1921	sub cf::client::send_drawinfo {
		1922	my ($self, $text, $flags) = @_;
		1923
		1924	utf8::encode $text;
		1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1926	}
		1927
		1928
		1929	=item $success = $client->query ($flags, "text", \&cb)
		1930
		1931	Queues a query to the client, calling the given callback with
		1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1934
		1935	Queries can fail, so check the return code. Or don't, as queries will become
		1936	reliable at some point in the future.
		1937
		1938	=cut
		1939
		1940	sub cf::client::query {
		1941	my ($self, $flags, $text, $cb) = @_;
		1942
		1943	return unless $self->state == ST_PLAYING
		1944	|| $self->state == ST_SETUP
		1945	|| $self->state == ST_CUSTOM;
		1946
		1947	$self->state (ST_CUSTOM);
		1948
		1949	utf8::encode $text;
		1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1951
		1952	$self->send_packet ($self->{query_queue}[0][0])
		1953	if @{ $self->{query_queue} } == 1;
		1954	}
		1955
		1956	cf::client->attach (
		1957	on_reply => sub {
		1958	my ($ns, $msg) = @_;
		1959
		1960	# this weird shuffling is so that direct followup queries
		1961	# get handled first
		1962	my $queue = delete $ns->{query_queue}
		1963	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1964
		1965	(shift @$queue)->[1]->($msg);
		1966
		1967	push @{ $ns->{query_queue} }, @$queue;
		1968
		1969	if (@{ $ns->{query_queue} } == @$queue) {
		1970	if (@$queue) {
		1971	$ns->send_packet ($ns->{query_queue}[0][0]);
		1972	} else {
		1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1974	}
		1975	}
		1976	},
		1977	);
		1978
		1979	=item $client->async (\&cb)
		1980
		1981	Create a new coroutine, running the specified callback. The coroutine will
		1982	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1983	or loss of connection).
		1984
		1985	=cut
		1986
		1987	sub cf::client::async {
		1988	my ($self, $cb) = @_;
		1989
		1990	my $coro = &Coro::async ($cb);
		1991
		1992	$coro->on_destroy (sub {
		1993	delete $self->{_coro}{$coro+0};
		1994	});
		1995
		1996	$self->{_coro}{$coro+0} = $coro;
		1997
		1998	$coro
		1999	}
		2000
		2001	cf::client->attach (
		2002	on_destroy => sub {
		2003	my ($ns) = @_;
		2004
		2005	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2006	},
		2007	);
		2008
		2009	=back
		2010
850		2011
851	=head2 SAFE SCRIPTING	2012	=head2 SAFE SCRIPTING
852		2013
853	Functions that provide a safe environment to compile and execute	2014	Functions that provide a safe environment to compile and execute
854	snippets of perl code without them endangering the safety of the server	2015	snippets of perl code without them endangering the safety of the server
…		…
869		2030
870	=pod	2031	=pod
871		2032
872	The following fucntions and emthods are available within a safe environment:	2033	The following fucntions and emthods are available within a safe environment:
873		2034
874	cf::object contr pay_amount pay_player	2035	cf::object contr pay_amount pay_player map
875	cf::object::player player	2036	cf::object::player player
876	cf::player peaceful	2037	cf::player peaceful
		2038	cf::map trigger
877		2039
878	=cut	2040	=cut
879		2041
880	for (	2042	for (
881	["cf::object" => qw(contr pay_amount pay_player)],	2043	["cf::object" => qw(contr pay_amount pay_player map)],
882	["cf::object::player" => qw(player)],	2044	["cf::object::player" => qw(player)],
883	["cf::player" => qw(peaceful)],	2045	["cf::player" => qw(peaceful)],
		2046	["cf::map" => qw(trigger)],
884	) {	2047	) {
885	no strict 'refs';	2048	no strict 'refs';
886	my ($pkg, @funs) = @$_;	2049	my ($pkg, @funs) = @$_;
887	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	2050	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
888	for @funs;	2051	for @funs;
…		…
1004		2167
1005	{	2168	{
1006	my $path = cf::localdir . "/database.pst";	2169	my $path = cf::localdir . "/database.pst";
1007		2170
1008	sub db_load() {	2171	sub db_load() {
1009	warn "loading database $path\n";#d# remove later
1010	$DB = stat $path ? Storable::retrieve $path : { };	2172	$DB = stat $path ? Storable::retrieve $path : { };
1011	}	2173	}
1012		2174
1013	my $pid;	2175	my $pid;
1014		2176
1015	sub db_save() {	2177	sub db_save() {
1016	warn "saving database $path\n";#d# remove later
1017	waitpid $pid, 0 if $pid;	2178	waitpid $pid, 0 if $pid;
1018	if (0 == ($pid = fork)) {	2179	if (0 == ($pid = fork)) {
1019	$DB->{_meta}{version} = 1;	2180	$DB->{_meta}{version} = 1;
1020	Storable::nstore $DB, "$path~";	2181	Storable::nstore $DB, "$path~";
1021	rename "$path~", $path;	2182	rename "$path~", $path;
…		…
1028	sub db_sync() {	2189	sub db_sync() {
1029	db_save if $dirty;	2190	db_save if $dirty;
1030	undef $dirty;	2191	undef $dirty;
1031	}	2192	}
1032		2193
1033	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1034	db_sync;	2195	db_sync;
1035	});	2196	});
1036		2197
1037	sub db_dirty() {	2198	sub db_dirty() {
1038	$dirty = 1;	2199	$dirty = 1;
…		…
1052	$DB->{$_[0]} = $_[1];	2213	$DB->{$_[0]} = $_[1];
1053	}	2214	}
1054	db_dirty;	2215	db_dirty;
1055	}	2216	}
1056		2217
1057	attach_global	2218	cf::global->attach (
1058	prio => 10000,	2219	prio => 10000,
1059	on_cleanup => sub {	2220	on_cleanup => sub {
1060	db_sync;	2221	db_sync;
1061	},	2222	},
1062	;	2223	);
1063	}	2224	}
1064		2225
1065	#############################################################################	2226	#############################################################################
1066	# the server's main()	2227	# the server's main()
1067		2228
…		…
1069	open my $fh, "<:utf8", cf::confdir . "/config"	2230	open my $fh, "<:utf8", cf::confdir . "/config"
1070	or return;	2231	or return;
1071		2232
1072	local $/;	2233	local $/;
1073	*CFG = YAML::Syck::Load <$fh>;	2234	*CFG = YAML::Syck::Load <$fh>;
		2235
		2236	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2237
		2238	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2239	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2240
		2241	if (exists $CFG{mlockall}) {
		2242	eval {
		2243	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2244	and die "WARNING: m(un)lockall failed: $!\n";
		2245	};
		2246	warn $@ if $@;
		2247	}
1074	}	2248	}
1075		2249
1076	sub main {	2250	sub main {
		2251	# we must not ever block the main coroutine
		2252	local $Coro::idle = sub {
		2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2254	async { Event::one_event };
		2255	};
		2256
1077	cfg_load;	2257	cfg_load;
1078	db_load;	2258	db_load;
1079	load_extensions;	2259	load_extensions;
1080	Event::loop;	2260	Event::loop;
1081	}	2261	}
1082		2262
1083	#############################################################################	2263	#############################################################################
1084	# initialisation	2264	# initialisation and cleanup
1085		2265
		2266	# install some emergency cleanup handlers
		2267	BEGIN {
		2268	for my $signal (qw(INT HUP TERM)) {
		2269	Event->signal (
		2270	data => WF_AUTOCANCEL,
		2271	signal => $signal,
		2272	cb => sub {
		2273	cf::cleanup "SIG$signal";
		2274	},
		2275	);
		2276	}
		2277	}
		2278
		2279	sub emergency_save() {
		2280	my $freeze_guard = cf::freeze_mainloop;
		2281
		2282	warn "enter emergency perl save\n";
		2283
		2284	cf::sync_job {
		2285	# use a peculiar iteration method to avoid tripping on perl
		2286	# refcount bugs in for. also avoids problems with players
		2287	# and maps saved/Destroyed asynchronously.
		2288	warn "begin emergency player save\n";
		2289	for my $login (keys %cf::PLAYER) {
		2290	my $pl = $cf::PLAYER{$login} or next;
		2291	$pl->valid or next;
		2292	$pl->save;
		2293	}
		2294	warn "end emergency player save\n";
		2295
		2296	warn "begin emergency map save\n";
		2297	for my $path (keys %cf::MAP) {
		2298	my $map = $cf::MAP{$path} or next;
		2299	$map->valid or next;
		2300	$map->save;
		2301	}
		2302	warn "end emergency map save\n";
		2303	};
		2304
		2305	warn "leave emergency perl save\n";
		2306	}
		2307
1086	sub _perl_reload(&) {	2308	sub reload() {
1087	my ($msg) = @_;	2309	# can/must only be called in main
		2310	if ($Coro::current != $Coro::main) {
		2311	warn "can only reload from main coroutine\n";
		2312	return;
		2313	}
1088		2314
1089	$msg->("reloading...");	2315	warn "reloading...";
		2316
		2317	warn "freezing server";
		2318	my $guard = freeze_mainloop;
		2319	cf::emergency_save;
		2320
		2321	warn "sync database to disk";
		2322	cf::db_sync;
		2323	IO::AIO::flush;
1090		2324
1091	eval {	2325	eval {
		2326	# if anything goes wrong in here, we should simply crash as we already saved
		2327
1092	# cancel all watchers	2328	warn "cancel all watchers";
1093	$_->cancel for Event::all_watchers;	2329	for (Event::all_watchers) {
		2330	$_->cancel if $_->data & WF_AUTOCANCEL;
		2331	}
1094		2332
		2333	warn "cancel all extension coros";
		2334	$_->cancel for values %EXT_CORO;
		2335	%EXT_CORO = ();
		2336
		2337	warn "remove commands";
		2338	%COMMAND = ();
		2339
		2340	warn "remove ext commands";
		2341	%EXTCMD = ();
		2342
1095	# unload all extensions	2343	warn "unload/nuke all extensions";
1096	for (@exts) {	2344	for my $pkg (@EXTS) {
1097	$msg->("unloading <$_>");	2345	warn "... unloading $pkg";
1098	unload_extension $_;	2346
		2347	if (my $cb = $pkg->can ("unload")) {
		2348	eval {
		2349	$cb->($pkg);
		2350	1
		2351	} or warn "$pkg unloaded, but with errors: $@";
1099	}	2352	}
1100		2353
		2354	warn "... nuking $pkg";
		2355	Symbol::delete_package $pkg;
		2356	}
		2357
1101	# unload all modules loaded from $LIBDIR	2358	warn "unload all perl modules loaded from $LIBDIR";
1102	while (my ($k, $v) = each %INC) {	2359	while (my ($k, $v) = each %INC) {
1103	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1104		2361
1105	$msg->("removing <$k>");	2362	warn "removing <$k>";
1106	delete $INC{$k};	2363	delete $INC{$k};
1107		2364
1108	$k =~ s/\.pm$//;	2365	$k =~ s/\.pm$//;
1109	$k =~ s/\//::/g;	2366	$k =~ s/\//::/g;
1110		2367
…		…
1113	}	2370	}
1114		2371
1115	Symbol::delete_package $k;	2372	Symbol::delete_package $k;
1116	}	2373	}
1117		2374
1118	# sync database to disk
1119	cf::db_sync;
1120
1121	# get rid of safe::, as good as possible	2375	warn "get rid of safe::, as good as possible";
1122	Symbol::delete_package "safe::$_"	2376	Symbol::delete_package "safe::$_"
1123	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1124		2378
1125	# remove register_script_function callbacks
1126	# TODO
1127
1128	# unload cf.pm "a bit"	2379	warn "unload cf.pm \"a bit\"";
1129	delete $INC{"cf.pm"};	2380	delete $INC{"cf.pm"};
1130		2381
1131	# don't, removes xs symbols, too,	2382	# don't, removes xs symbols, too,
1132	# and global variables created in xs	2383	# and global variables created in xs
1133	#Symbol::delete_package __PACKAGE__;	2384	#Symbol::delete_package __PACKAGE__;
1134		2385
1135	# reload cf.pm
1136	$msg->("reloading cf.pm");	2386	warn "reloading cf.pm";
1137	require cf;	2387	require cf;
		2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1138		2389
1139	# load config and database again	2390	warn "load config and database again";
1140	cf::cfg_load;	2391	cf::cfg_load;
1141	cf::db_load;	2392	cf::db_load;
1142		2393
1143	# load extensions	2394	warn "load extensions";
1144	$msg->("load extensions");
1145	cf::load_extensions;	2395	cf::load_extensions;
1146		2396
1147	# reattach attachments to objects	2397	warn "reattach attachments to objects/players";
1148	$msg->("reattach");
1149	_global_reattach;	2398	_global_reattach;
		2399	warn "reattach attachments to maps";
		2400	reattach $_ for values %MAP;
1150	};	2401	};
1151	$msg->($@) if $@;
1152		2402
1153	$msg->("reloaded");	2403	if ($@) {
		2404	warn $@;
		2405	warn "error while reloading, exiting.";
		2406	exit 1;
		2407	}
		2408
		2409	warn "reloaded";
1154	};	2410	};
1155		2411
1156	sub perl_reload() {	2412	#############################################################################
1157	_perl_reload {
1158	warn $_[0];
1159	print "$_[0]\n";
1160	};
1161	}
1162		2413
		2414	unless ($LINK_MAP) {
		2415	$LINK_MAP = cf::map::new;
		2416
		2417	$LINK_MAP->width (41);
		2418	$LINK_MAP->height (41);
		2419	$LINK_MAP->alloc;
		2420	$LINK_MAP->path ("{link}");
		2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2423
		2424	# dirty hack because... archetypes are not yet loaded
		2425	Event->timer (
		2426	after => 10,
		2427	cb => sub {
		2428	$_[0]->w->cancel;
		2429
		2430	# provide some exits "home"
		2431	my $exit = cf::object::new "exit";
		2432
		2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2436
		2437	$LINK_MAP->insert ($exit->clone, 19, 19);
		2438	$LINK_MAP->insert ($exit->clone, 19, 20);
		2439	$LINK_MAP->insert ($exit->clone, 19, 21);
		2440	$LINK_MAP->insert ($exit->clone, 20, 19);
		2441	$LINK_MAP->insert ($exit->clone, 20, 21);
		2442	$LINK_MAP->insert ($exit->clone, 21, 19);
		2443	$LINK_MAP->insert ($exit->clone, 21, 20);
		2444	$LINK_MAP->insert ($exit->clone, 21, 21);
		2445
		2446	$exit->destroy;
		2447	});
		2448
		2449	$LINK_MAP->{deny_save} = 1;
		2450	$LINK_MAP->{deny_reset} = 1;
		2451
		2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2453	}
		2454
1163	register_command "perl-reload", 0, sub {	2455	register_command "reload" => sub {
1164	my ($who, $arg) = @_;	2456	my ($who, $arg) = @_;
1165		2457
1166	if ($who->flag (FLAG_WIZ)) {	2458	if ($who->flag (FLAG_WIZ)) {
1167	_perl_reload {	2459	$who->message ("start of reload.");
1168	warn $_[0];	2460	reload;
1169	$who->message ($_[0]);	2461	$who->message ("end of reload.");
1170	};
1171	}	2462	}
1172	};	2463	};
1173		2464
1174	register "<global>", __PACKAGE__;
1175
1176	unshift @INC, $LIBDIR;	2465	unshift @INC, $LIBDIR;
1177		2466
1178	$TICK_WATCHER = Event->timer (	2467	$TICK_WATCHER = Event->timer (
		2468	reentrant => 0,
1179	prio => 1,	2469	prio => 0,
1180	async => 1,
1181	at => $NEXT_TICK || 1,	2470	at => $NEXT_TICK || $TICK,
		2471	data => WF_AUTOCANCEL,
1182	cb => sub {	2472	cb => sub {
		2473	$NOW = Event::time;
		2474
1183	cf::server_tick; # one server iteration	2475	cf::server_tick; # one server iteration
1184		2476	$RUNTIME += $TICK;
1185	my $NOW = Event::time;
1186	$NEXT_TICK += $TICK;	2477	$NEXT_TICK += $TICK;
1187		2478
		2479	$WAIT_FOR_TICK->broadcast;
		2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2481
1188	# if we are delayed by four ticks or more, skip them all	2482	# if we are delayed by four ticks or more, skip them all
1189	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1190		2484
1191	$TICK_WATCHER->at ($NEXT_TICK);	2485	$TICK_WATCHER->at ($NEXT_TICK);
1192	$TICK_WATCHER->start;	2486	$TICK_WATCHER->start;
1193	},	2487	},
1194	);	2488	);
1195		2489
1196	IO::AIO::max_poll_time $TICK * 0.2;	2490	IO::AIO::max_poll_time $TICK * 0.2;
1197		2491
		2492	Event->io (
1198	Event->io (fd => IO::AIO::poll_fileno,	2493	fd => IO::AIO::poll_fileno,
1199	poll => 'r',	2494	poll => 'r',
1200	prio => 5,	2495	prio => 5,
		2496	data => WF_AUTOCANCEL,
1201	cb => \&IO::AIO::poll_cb);	2497	cb => \&IO::AIO::poll_cb,
		2498	);
		2499
		2500	Event->timer (
		2501	data => WF_AUTOCANCEL,
		2502	after => 0,
		2503	interval => 10,
		2504	cb => sub {
		2505	(Coro::unblock_sub {
		2506	write_runtime
		2507	or warn "ERROR: unable to write runtime file: $!";
		2508	})->();
		2509	},
		2510	);
		2511
		2512	END { cf::emergency_save }
1202		2513
1203	1	2514	1
1204		2515

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