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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.72 by root, Sun Oct 1 11:41:37 2006 UTC vs.
Revision 1.159 by root, Wed Jan 10 22:50:12 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;
		23	use IO::AIO 2.32 ();
10	use YAML::Syck ();	24	use YAML::Syck ();
11	use Time::HiRes;	25	use Time::HiRes;
12	use Event;	26
13	$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
14		30
15	# 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?
16	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
17		33
18	use strict;	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
19		35
20	_init_vars;
21
22	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
23	our @EVENT;	43	our @EVENT;
24	our $LIBDIR = maps_directory "perl";	44	our $LIBDIR = datadir . "/ext";
25		45
26	our $TICK = MAX_TIME * 1e-6;	46	our $TICK = MAX_TIME * 1e-6;
27	our $TICK_WATCHER;	47	our $TICK_WATCHER;
28	our $NEXT_TICK;	48	our $NEXT_TICK;
		49	our $NOW;
29		50
30	our %CFG;	51	our %CFG;
31		52
		53	our $UPTIME; $UPTIME ||= time;
		54	our $RUNTIME;
		55
		56	our %PLAYER; # all users
		57	our %MAP; # all maps
		58	our $LINK_MAP; # the special {link} map
		59	our $RANDOM_MAPS = cf::localdir . "/random";
		60
		61	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		62	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		63
		64	binmode STDOUT;
		65	binmode STDERR;
		66
		67	# read virtual server time, if available
		68	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		69	open my $fh, "<", cf::localdir . "/runtime"
		70	or die "unable to read runtime file: $!";
		71	$RUNTIME = <$fh> + 0.;
		72	}
		73
		74	mkdir cf::localdir;
		75	mkdir cf::localdir . "/" . cf::playerdir;
		76	mkdir cf::localdir . "/" . cf::tmpdir;
		77	mkdir cf::localdir . "/" . cf::uniquedir;
		78	mkdir $RANDOM_MAPS;
		79
		80	# a special map that is always available
		81	our $LINK_MAP;
		82	our $EMERGENCY_POSITION;
		83
32	#############################################################################	84	#############################################################################
33		85
34	=head2 GLOBAL VARIABLES	86	=head2 GLOBAL VARIABLES
35		87
36	=over 4	88	=over 4
		89
		90	=item $cf::UPTIME
		91
		92	The timestamp of the server start (so not actually an uptime).
		93
		94	=item $cf::RUNTIME
		95
		96	The time this server has run, starts at 0 and is increased by $cf::TICK on
		97	every server tick.
37		98
38	=item $cf::LIBDIR	99	=item $cf::LIBDIR
39		100
40	The perl library directory, where extensions and cf-specific modules can	101	The perl library directory, where extensions and cf-specific modules can
41	be found. It will be added to C<@INC> automatically.	102	be found. It will be added to C<@INC> automatically.
42		103
		104	=item $cf::NOW
		105
		106	The time of the last (current) server tick.
		107
43	=item $cf::TICK	108	=item $cf::TICK
44		109
45	The interval between server ticks, in seconds.	110	The interval between server ticks, in seconds.
46		111
47	=item %cf::CFG	112	=item %cf::CFG
48		113
49	Configuration for the server, loaded from C</etc/crossfire/config>, or	114	Configuration for the server, loaded from C</etc/crossfire/config>, or
50	from wherever your confdir points to.	115	from wherever your confdir points to.
		116
		117	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		118
		119	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		120	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		121	processing has been done. Call C<< ->wait >> on them to maximise the
		122	window of cpu time available, or simply to synchronise to the server tick.
51		123
52	=back	124	=back
53		125
54	=cut	126	=cut
55		127
56	BEGIN {	128	BEGIN {
57	*CORE::GLOBAL::warn = sub {	129	*CORE::GLOBAL::warn = sub {
58	my $msg = join "", @_;	130	my $msg = join "", @_;
		131	utf8::encode $msg;
		132
59	$msg .= "\n"	133	$msg .= "\n"
60	unless $msg =~ /\n$/;	134	unless $msg =~ /\n$/;
61		135
62	print STDERR "cfperl: $msg";
63	LOG llevError, "cfperl: $msg";	136	LOG llevError, $msg;
64	};	137	};
65	}	138	}
66		139
		140	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		141	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		142	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		143	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		144	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
67	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	145	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
68		146
69	# we bless all objects into (empty) derived classes to force a method lookup	147	# we bless all objects into (empty) derived classes to force a method lookup
70	# within the Safe compartment.	148	# within the Safe compartment.
71	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	149	for my $pkg (qw(
		150	cf::global cf::attachable
		151	cf::object cf::object::player
		152	cf::client cf::player
		153	cf::arch cf::living
		154	cf::map cf::party cf::region
		155	)) {
72	no strict 'refs';	156	no strict 'refs';
73	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	157	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
74	}	158	}
75		159
76	$Event::DIED = sub {	160	$Event::DIED = sub {
77	warn "error in event callback: @_";	161	warn "error in event callback: @_";
78	};	162	};
79		163
80	my %ext_pkg;
81	my @exts;
82	my @hook;
83	my %command;
84	my %extcmd;
85
86	=head2 UTILITY FUNCTIONS	164	=head2 UTILITY FUNCTIONS
87		165
88	=over 4	166	=over 4
89		167
		168	=item dumpval $ref
		169
90	=cut	170	=cut
		171
		172	sub dumpval {
		173	eval {
		174	local $SIG{__DIE__};
		175	my $d;
		176	if (1) {
		177	$d = new Data::Dumper([$_[0]], ["*var"]);
		178	$d->Terse(1);
		179	$d->Indent(2);
		180	$d->Quotekeys(0);
		181	$d->Useqq(1);
		182	#$d->Bless(...);
		183	$d->Seen($_[1]) if @_ > 1;
		184	$d = $d->Dump();
		185	}
		186	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		187	$d
		188	} || "[unable to dump $_[0]: '$@']";
		189	}
91		190
92	use JSON::Syck (); # TODO# replace by JSON::PC once working	191	use JSON::Syck (); # TODO# replace by JSON::PC once working
93		192
94	=item $ref = cf::from_json $json	193	=item $ref = cf::from_json $json
95		194
…		…
111	sub to_json($) {	210	sub to_json($) {
112	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	211	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
113	JSON::Syck::Dump $_[0]	212	JSON::Syck::Dump $_[0]
114	}	213	}
115		214
		215	=item cf::lock_wait $string
		216
		217	Wait until the given lock is available. See cf::lock_acquire.
		218
		219	=item my $lock = cf::lock_acquire $string
		220
		221	Wait until the given lock is available and then acquires it and returns
		222	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		223	for example when the coroutine gets canceled), the lock is automatically
		224	returned.
		225
		226	Lock names should begin with a unique identifier (for example, cf::map::find
		227	uses map_find and cf::map::load uses map_load).
		228
		229	=cut
		230
		231	our %LOCK;
		232
		233	sub lock_wait($) {
		234	my ($key) = @_;
		235
		236	# wait for lock, if any
		237	while ($LOCK{$key}) {
		238	push @{ $LOCK{$key} }, $Coro::current;
		239	Coro::schedule;
		240	}
		241	}
		242
		243	sub lock_acquire($) {
		244	my ($key) = @_;
		245
		246	# wait, to be sure we are not locked
		247	lock_wait $key;
		248
		249	$LOCK{$key} = [];
		250
		251	Coro::guard {
		252	# wake up all waiters, to be on the safe side
		253	$_->ready for @{ delete $LOCK{$key} };
		254	}
		255	}
		256
		257	sub freeze_mainloop {
		258	return unless $TICK_WATCHER->is_active;
		259
		260	my $guard = Coro::guard { $TICK_WATCHER->start };
		261	$TICK_WATCHER->stop;
		262	$guard
		263	}
		264
		265	=item cf::async { BLOCK }
		266
		267	Currently the same as Coro::async_pool, meaning you cannot use
		268	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		269	thing you are allowed to do is call C<prio> on it.
		270
		271	=cut
		272
		273	BEGIN { *async = \&Coro::async_pool }
		274
		275	=item cf::sync_job { BLOCK }
		276
		277	The design of crossfire+ requires that the main coro ($Coro::main) is
		278	always able to handle events or runnable, as crossfire+ is only partly
		279	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		280
		281	If it must be done, put the blocking parts into C<sync_job>. This will run
		282	the given BLOCK in another coroutine while waiting for the result. The
		283	server will be frozen during this time, so the block should either finish
		284	fast or be very important.
		285
		286	=cut
		287
		288	sub sync_job(&) {
		289	my ($job) = @_;
		290
		291	if ($Coro::current == $Coro::main) {
		292	# this is the main coro, too bad, we have to block
		293	# till the operation succeeds, freezing the server :/
		294
		295	# TODO: use suspend/resume instead
		296	# (but this is cancel-safe)
		297	my $freeze_guard = freeze_mainloop;
		298
		299	my $busy = 1;
		300	my @res;
		301
		302	(async {
		303	@res = eval { $job->() };
		304	warn $@ if $@;
		305	undef $busy;
		306	})->prio (Coro::PRIO_MAX);
		307
		308	while ($busy) {
		309	Coro::cede or Event::one_event;
		310	}
		311
		312	wantarray ? @res : $res[0]
		313	} else {
		314	# we are in another coroutine, how wonderful, everything just works
		315
		316	$job->()
		317	}
		318	}
		319
		320	=item $coro = cf::async_ext { BLOCK }
		321
		322	Like async, but this coro is automatically being canceled when the
		323	extension calling this is being unloaded.
		324
		325	=cut
		326
		327	sub async_ext(&) {
		328	my $cb = shift;
		329
		330	my $coro = &Coro::async ($cb);
		331
		332	$coro->on_destroy (sub {
		333	delete $EXT_CORO{$coro+0};
		334	});
		335	$EXT_CORO{$coro+0} = $coro;
		336
		337	$coro
		338	}
		339
		340	sub write_runtime {
		341	my $runtime = cf::localdir . "/runtime";
		342
		343	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		344	or return;
		345
		346	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		347	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		348	and return;
		349
		350	aio_fsync $fh
		351	and return;
		352
		353	close $fh
		354	or return;
		355
		356	aio_rename "$runtime~", $runtime
		357	and return;
		358
		359	1
		360	}
		361
116	=back	362	=back
117		363
118	=cut	364	=cut
119		365
120	#############################################################################	366	#############################################################################
121		367
122	=head2 EVENTS AND OBJECT ATTACHMENTS	368	package cf::path;
		369
		370	use overload
		371	'""' => \&as_string;
		372
		373	# used to convert map paths into valid unix filenames by repalcing / by ∕
		374	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		375
		376	sub new {
		377	my ($class, $path, $base) = @_;
		378
		379	$path = $path->as_string if ref $path;
		380
		381	my $self = bless { }, $class;
		382
		383	# {... are special paths that are not touched
		384	# ?xxx/... are special absolute paths
		385	# ?random/... random maps
		386	# /! non-realised random map exit
		387	# /... normal maps
		388	# ~/... per-player maps without a specific player (DO NOT USE)
		389	# ~user/... per-player map of a specific user
		390
		391	$path =~ s/$PATH_SEP/\//go;
		392
		393	if ($path =~ /^{/) {
		394	# fine as it is
		395	} elsif ($path =~ s{^\?random/}{}) {
		396	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		397	$self->{random} = cf::from_json $data;
		398	} else {
		399	if ($path =~ s{^~([^/]+)?}{}) {
		400	$self->{user_rel} = 1;
		401
		402	if (defined $1) {
		403	$self->{user} = $1;
		404	} elsif ($base =~ m{^~([^/]+)/}) {
		405	$self->{user} = $1;
		406	} else {
		407	warn "cannot resolve user-relative path without user <$path,$base>\n";
		408	}
		409	} elsif ($path =~ /^\//) {
		410	# already absolute
		411	} else {
		412	$base =~ s{[^/]+/?$}{};
		413	return $class->new ("$base/$path");
		414	}
		415
		416	for ($path) {
		417	redo if s{/\.?/}{/};
		418	redo if s{/[^/]+/\.\./}{/};
		419	}
		420	}
		421
		422	$self->{path} = $path;
		423
		424	$self
		425	}
		426
		427	# the name / primary key / in-game path
		428	sub as_string {
		429	my ($self) = @_;
		430
		431	$self->{user_rel} ? "~$self->{user}$self->{path}"
		432	: $self->{random} ? "?random/$self->{path}"
		433	: $self->{path}
		434	}
		435
		436	# the displayed name, this is a one way mapping
		437	sub visible_name {
		438	my ($self) = @_;
		439
		440	# if (my $rmp = $self->{random}) {
		441	# # todo: be more intelligent about this
		442	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		443	# } else {
		444	$self->as_string
		445	# }
		446	}
		447
		448	# escape the /'s in the path
		449	sub _escaped_path {
		450	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		451	$path
		452	}
		453
		454	# the original (read-only) location
		455	sub load_path {
		456	my ($self) = @_;
		457
		458	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		459	}
		460
		461	# the temporary/swap location
		462	sub save_path {
		463	my ($self) = @_;
		464
		465	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		466	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		467	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		468	}
		469
		470	# the unique path, might be eq to save_path
		471	sub uniq_path {
		472	my ($self) = @_;
		473
		474	$self->{user_rel} || $self->{random}
		475	? undef
		476	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		477	}
		478
		479	# return random map parameters, or undef
		480	sub random_map_params {
		481	my ($self) = @_;
		482
		483	$self->{random}
		484	}
		485
		486	# this is somewhat ugly, but style maps do need special treatment
		487	sub is_style_map {
		488	$_[0]{path} =~ m{^/styles/}
		489	}
		490
		491	package cf;
		492
		493	#############################################################################
		494
		495	=head2 ATTACHABLE OBJECTS
		496
		497	Many objects in crossfire are so-called attachable objects. That means you can
		498	attach callbacks/event handlers (a collection of which is called an "attachment")
		499	to it. All such attachable objects support the following methods.
		500
		501	In the following description, CLASS can be any of C<global>, C<object>
		502	C<player>, C<client> or C<map> (i.e. the attachable objects in
		503	crossfire+).
123		504
124	=over 4	505	=over 4
125		506
126	=item $object->attach ($attachment, key => $value...)
127
128	=item $object->detach ($attachment)
129
130	Attach/detach a pre-registered attachment to an object.
131
132	=item $player->attach ($attachment, key => $value...)
133
134	=item $player->detach ($attachment)
135
136	Attach/detach a pre-registered attachment to a player.
137
138	=item $map->attach ($attachment, key => $value...)	507	=item $attachable->attach ($attachment, key => $value...)
139		508
140	=item $map->detach ($attachment)	509	=item $attachable->detach ($attachment)
141		510
142	Attach/detach a pre-registered attachment to a map.	511	Attach/detach a pre-registered attachment to a specific object and give it
		512	the specified key/value pairs as arguments.
143		513
144	=item $bool = $object->attached ($name)	514	Example, attach a minesweeper attachment to the given object, making it a
		515	10x10 minesweeper game:
145		516
146	=item $bool = $player->attached ($name)	517	$obj->attach (minesweeper => width => 10, height => 10);
147		518
148	=item $bool = $map->attached ($name)	519	=item $bool = $attachable->attached ($name)
149		520
150	Checks wether the named attachment is currently attached to the object.	521	Checks wether the named attachment is currently attached to the object.
151		522
152	=item cf::attach_global ...	523	=item cf::CLASS->attach ...
153		524
154	Attach handlers for global events.	525	=item cf::CLASS->detach ...
155		526
156	This and all following C<attach_*>-functions expect any number of the	527	Define an anonymous attachment and attach it to all objects of the given
157	following handler/hook descriptions:	528	CLASS. See the next function for an explanation of its arguments.
		529
		530	You can attach to global events by using the C<cf::global> class.
		531
		532	Example, log all player logins:
		533
		534	cf::player->attach (
		535	on_login => sub {
		536	my ($pl) = @_;
		537	...
		538	},
		539	);
		540
		541	Example, attach to the jeweler skill:
		542
		543	cf::object->attach (
		544	type => cf::SKILL,
		545	subtype => cf::SK_JEWELER,
		546	on_use_skill => sub {
		547	my ($sk, $ob, $part, $dir, $msg) = @_;
		548	...
		549	},
		550	);
		551
		552	=item cf::CLASS::attachment $name, ...
		553
		554	Register an attachment by C<$name> through which attachable objects of the
		555	given CLASS can refer to this attachment.
		556
		557	Some classes such as crossfire maps and objects can specify attachments
		558	that are attached at load/instantiate time, thus the need for a name.
		559
		560	These calls expect any number of the following handler/hook descriptions:
158		561
159	=over 4	562	=over 4
160		563
161	=item prio => $number	564	=item prio => $number
162		565
…		…
164	by another C<prio> setting). Lower priority handlers get executed	567	by another C<prio> setting). Lower priority handlers get executed
165	earlier. The default priority is C<0>, and many built-in handlers are	568	earlier. The default priority is C<0>, and many built-in handlers are
166	registered at priority C<-1000>, so lower priorities should not be used	569	registered at priority C<-1000>, so lower priorities should not be used
167	unless you know what you are doing.	570	unless you know what you are doing.
168		571
		572	=item type => $type
		573
		574	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		575	given type of objects only (the additional parameter C<subtype> can be
		576	used to further limit to the given subtype).
		577
169	=item on_I<event> => \&cb	578	=item on_I<event> => \&cb
170		579
171	Call the given code reference whenever the named event happens (event is	580	Call the given code reference whenever the named event happens (event is
172	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	581	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
173	handlers are recognised generally depends on the type of object these	582	handlers are recognised generally depends on the type of object these
…		…
182	package and register them. Only handlers for eevents supported by the	591	package and register them. Only handlers for eevents supported by the
183	object/class are recognised.	592	object/class are recognised.
184		593
185	=back	594	=back
186		595
187	=item cf::attach_to_type $object_type, $subtype, ...	596	Example, define an attachment called "sockpuppet" that calls the given
		597	event handler when a monster attacks:
188		598
189	Attach handlers for a specific object type (e.g. TRANSPORT) and	599	cf::object::attachment sockpuppet =>
190	subtype. If C<$subtype> is zero or undef, matches all objects of the given	600	on_skill_attack => sub {
191	type.	601	my ($self, $victim) = @_;
192		602	...
193	=item cf::attach_to_objects ...
194
195	Attach handlers to all objects. Do not use this except for debugging or
196	very rare events, as handlers are (obviously) called for I<all> objects in
197	the game.
198
199	=item cf::attach_to_players ...
200
201	Attach handlers to all players.
202
203	=item cf::attach_to_maps ...
204
205	Attach handlers to all maps.
206
207	=item cf:register_attachment $name, ...
208
209	Register an attachment by name through which objects can refer to this
210	attachment.
211
212	=item cf:register_player_attachment $name, ...
213
214	Register an attachment by name through which players can refer to this
215	attachment.
216
217	=item cf:register_map_attachment $name, ...
218
219	Register an attachment by name through which maps can refer to this
220	attachment.
221
222	=cut
223
224	# the following variables are defined in .xs and must not be re-created
225	our @CB_GLOBAL = (); # registry for all global events
226	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
227	our @CB_PLAYER = ();
228	our @CB_TYPE = (); # registry for type (cf-object class) based events
229	our @CB_MAP = ();
230
231	my %attachment;
232
233	sub _attach_cb($\%$$$) {
234	my ($registry, $undo, $event, $prio, $cb) = @_;
235
236	use sort 'stable';
237
238	$cb = [$prio, $cb];
239
240	@{$registry->[$event]} = sort
241	{ $a->[0] cmp $b->[0] }
242	@{$registry->[$event] || []}, $cb;
243
244	push @{$undo->{cb}}, [$event, $cb];
245	}
246
247	# attach handles attaching event callbacks
248	# the only thing the caller has to do is pass the correct
249	# registry (== where the callback attaches to).
250	sub _attach(\@$@) {
251	my ($registry, $klass, @arg) = @_;
252
253	my $prio = 0;
254
255	my %undo = (
256	registry => $registry,
257	cb => [],
258	);
259
260	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
261
262	while (@arg) {
263	my $type = shift @arg;
264
265	if ($type eq "prio") {
266	$prio = shift @arg;
267
268	} elsif ($type eq "package") {
269	my $pkg = shift @arg;
270
271	while (my ($name, $id) = each %cb_id) {
272	if (my $cb = $pkg->can ($name)) {
273	_attach_cb $registry, %undo, $id, $prio, $cb;
274	}
275	}	603	}
276
277	} elsif (exists $cb_id{$type}) {
278	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
279
280	} elsif (ref $type) {
281	warn "attaching objects not supported, ignoring.\n";
282
283	} else {
284	shift @arg;
285	warn "attach argument '$type' not supported, ignoring.\n";
286	}
287	}
288
289	\%undo
290	}
291
292	sub _attach_attachment {
293	my ($obj, $name, %arg) = @_;
294
295	return if exists $obj->{_attachment}{$name};
296
297	my $res;
298
299	if (my $attach = $attachment{$name}) {
300	my $registry = $obj->registry;
301
302	for (@$attach) {
303	my ($klass, @attach) = @$_;
304	$res = _attach @$registry, $klass, @attach;
305	}
306
307	$obj->{$name} = \%arg;
308	} else {
309	warn "object uses attachment '$name' that is not available, postponing.\n";
310	}
311
312	$obj->{_attachment}{$name} = undef;
313
314	$res->{attachment} = $name;
315	$res
316	}
317
318	*cf::object::attach =
319	*cf::player::attach =
320	*cf::map::attach = sub {
321	my ($obj, $name, %arg) = @_;
322
323	_attach_attachment $obj, $name, %arg;
324	};
325
326	# all those should be optimised
327	*cf::object::detach =
328	*cf::player::detach =
329	*cf::map::detach = sub {
330	my ($obj, $name) = @_;
331
332	delete $obj->{_attachment}{$name};
333	reattach ($obj);
334	};
335
336	*cf::object::attached =
337	*cf::player::attached =
338	*cf::map::attached = sub {
339	my ($obj, $name) = @_;
340
341	exists $obj->{_attachment}{$name}
342	};
343
344	sub attach_global {
345	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
346	}
347
348	sub attach_to_type {
349	my $type = shift;
350	my $subtype = shift;
351
352	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
353	}
354
355	sub attach_to_objects {
356	_attach @CB_OBJECT, KLASS_OBJECT, @_
357	}
358
359	sub attach_to_players {
360	_attach @CB_PLAYER, KLASS_PLAYER, @_
361	}
362
363	sub attach_to_maps {
364	_attach @CB_MAP, KLASS_MAP, @_
365	}
366
367	sub register_attachment {
368	my $name = shift;
369
370	$attachment{$name} = [[KLASS_OBJECT, @_]];
371	}
372
373	sub register_player_attachment {
374	my $name = shift;
375
376	$attachment{$name} = [[KLASS_PLAYER, @_]];
377	}
378
379	sub register_map_attachment {
380	my $name = shift;
381
382	$attachment{$name} = [[KLASS_MAP, @_]];
383	}
384
385	our $override;
386	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
387
388	sub override {
389	$override = 1;
390	@invoke_results = ();
391	}
392
393	sub do_invoke {
394	my $event = shift;
395	my $callbacks = shift;
396
397	@invoke_results = ();
398
399	local $override;
400
401	for (@$callbacks) {
402	eval { &{$_->[1]} };
403
404	if ($@) {
405	warn "$@";
406	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
407	override;
408	}
409
410	return 1 if $override;
411	}
412
413	0	604	}
414	}
415		605
416	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	606	=item $attachable->valid
417
418	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
419
420	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
421
422	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
423
424	Generate a global/object/player/map-specific event with the given arguments.
425
426	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
427	removed in future versions), and there is no public API to access override
428	results (if you must, access C<@cf::invoke_results> directly).
429
430	=back
431
432	=cut
433
434	#############################################################################
435
436	=head2 METHODS VALID FOR ALL CORE OBJECTS
437
438	=over 4
439
440	=item $object->valid, $player->valid, $map->valid
441		607
442	Just because you have a perl object does not mean that the corresponding	608	Just because you have a perl object does not mean that the corresponding
443	C-level object still exists. If you try to access an object that has no	609	C-level object still exists. If you try to access an object that has no
444	valid C counterpart anymore you get an exception at runtime. This method	610	valid C counterpart anymore you get an exception at runtime. This method
445	can be used to test for existence of the C object part without causing an	611	can be used to test for existence of the C object part without causing an
446	exception.	612	exception.
447		613
		614	=cut
		615
		616	# the following variables are defined in .xs and must not be re-created
		617	our @CB_GLOBAL = (); # registry for all global events
		618	our @CB_ATTACHABLE = (); # registry for all attachables
		619	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		620	our @CB_PLAYER = ();
		621	our @CB_CLIENT = ();
		622	our @CB_TYPE = (); # registry for type (cf-object class) based events
		623	our @CB_MAP = ();
		624
		625	my %attachment;
		626
		627	sub _attach_cb($$$$) {
		628	my ($registry, $event, $prio, $cb) = @_;
		629
		630	use sort 'stable';
		631
		632	$cb = [$prio, $cb];
		633
		634	@{$registry->[$event]} = sort
		635	{ $a->[0] cmp $b->[0] }
		636	@{$registry->[$event] || []}, $cb;
		637	}
		638
		639	# hack
		640	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		641
		642	# attach handles attaching event callbacks
		643	# the only thing the caller has to do is pass the correct
		644	# registry (== where the callback attaches to).
		645	sub _attach {
		646	my ($registry, $klass, @arg) = @_;
		647
		648	my $object_type;
		649	my $prio = 0;
		650	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		651
		652	#TODO: get rid of this hack
		653	if ($attachable_klass{$klass}) {
		654	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		655	}
		656
		657	while (@arg) {
		658	my $type = shift @arg;
		659
		660	if ($type eq "prio") {
		661	$prio = shift @arg;
		662
		663	} elsif ($type eq "type") {
		664	$object_type = shift @arg;
		665	$registry = $CB_TYPE[$object_type] ||= [];
		666
		667	} elsif ($type eq "subtype") {
		668	defined $object_type or Carp::croak "subtype specified without type";
		669	my $object_subtype = shift @arg;
		670	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		671
		672	} elsif ($type eq "package") {
		673	my $pkg = shift @arg;
		674
		675	while (my ($name, $id) = each %cb_id) {
		676	if (my $cb = $pkg->can ($name)) {
		677	_attach_cb $registry, $id, $prio, $cb;
		678	}
		679	}
		680
		681	} elsif (exists $cb_id{$type}) {
		682	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		683
		684	} elsif (ref $type) {
		685	warn "attaching objects not supported, ignoring.\n";
		686
		687	} else {
		688	shift @arg;
		689	warn "attach argument '$type' not supported, ignoring.\n";
		690	}
		691	}
		692	}
		693
		694	sub _object_attach {
		695	my ($obj, $name, %arg) = @_;
		696
		697	return if exists $obj->{_attachment}{$name};
		698
		699	if (my $attach = $attachment{$name}) {
		700	my $registry = $obj->registry;
		701
		702	for (@$attach) {
		703	my ($klass, @attach) = @$_;
		704	_attach $registry, $klass, @attach;
		705	}
		706
		707	$obj->{$name} = \%arg;
		708	} else {
		709	warn "object uses attachment '$name' that is not available, postponing.\n";
		710	}
		711
		712	$obj->{_attachment}{$name} = undef;
		713	}
		714
		715	sub cf::attachable::attach {
		716	if (ref $_[0]) {
		717	_object_attach @_;
		718	} else {
		719	_attach shift->_attach_registry, @_;
		720	}
		721	};
		722
		723	# all those should be optimised
		724	sub cf::attachable::detach {
		725	my ($obj, $name) = @_;
		726
		727	if (ref $obj) {
		728	delete $obj->{_attachment}{$name};
		729	reattach ($obj);
		730	} else {
		731	Carp::croak "cannot, currently, detach class attachments";
		732	}
		733	};
		734
		735	sub cf::attachable::attached {
		736	my ($obj, $name) = @_;
		737
		738	exists $obj->{_attachment}{$name}
		739	}
		740
		741	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		742	eval "#line " . __LINE__ . " 'cf.pm'
		743	sub cf::\L$klass\E::_attach_registry {
		744	(\\\@CB_$klass, KLASS_$klass)
		745	}
		746
		747	sub cf::\L$klass\E::attachment {
		748	my \$name = shift;
		749
		750	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		751	}
		752	";
		753	die if $@;
		754	}
		755
		756	our $override;
		757	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		758
		759	sub override {
		760	$override = 1;
		761	@invoke_results = ();
		762	}
		763
		764	sub do_invoke {
		765	my $event = shift;
		766	my $callbacks = shift;
		767
		768	@invoke_results = ();
		769
		770	local $override;
		771
		772	for (@$callbacks) {
		773	eval { &{$_->[1]} };
		774
		775	if ($@) {
		776	warn "$@";
		777	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		778	override;
		779	}
		780
		781	return 1 if $override;
		782	}
		783
		784	0
		785	}
		786
		787	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		788
		789	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		790
		791	Generate an object-specific event with the given arguments.
		792
		793	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		794	removed in future versions), and there is no public API to access override
		795	results (if you must, access C<@cf::invoke_results> directly).
		796
448	=back	797	=back
449		798
450	=cut	799	=cut
451
452	*cf::object::valid =
453	*cf::player::valid =
454	*cf::map::valid = \&cf::_valid;
455		800
456	#############################################################################	801	#############################################################################
457	# object support	802	# object support
458		803
459	sub instantiate {
460	my ($obj, $data) = @_;
461
462	$data = from_json $data;
463
464	for (@$data) {
465	my ($name, $args) = @$_;
466
467	$obj->attach ($name, %{$args || {} });
468	}
469	}
470
471	# basically do the same as instantiate, without calling instantiate
472	sub reattach {	804	sub reattach {
		805	# basically do the same as instantiate, without calling instantiate
473	my ($obj) = @_;	806	my ($obj) = @_;
		807
474	my $registry = $obj->registry;	808	my $registry = $obj->registry;
475		809
476	@$registry = ();	810	@$registry = ();
477		811
478	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	812	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
479		813
480	for my $name (keys %{ $obj->{_attachment} || {} }) {	814	for my $name (keys %{ $obj->{_attachment} || {} }) {
481	if (my $attach = $attachment{$name}) {	815	if (my $attach = $attachment{$name}) {
482	for (@$attach) {	816	for (@$attach) {
483	my ($klass, @attach) = @$_;	817	my ($klass, @attach) = @$_;
484	_attach @$registry, $klass, @attach;	818	_attach $registry, $klass, @attach;
485	}	819	}
486	} else {	820	} else {
487	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' that is not available, postponing.\n";
488	}	822	}
489	}	823	}
490	}	824	}
491		825
492	sub object_freezer_save {	826	cf::attachable->attach (
493	my ($filename, $rdata, $objs) = @_;
494
495	if (length $$rdata) {
496	warn sprintf "saving %s (%d,%d)\n",
497	$filename, length $$rdata, scalar @$objs;
498
499	if (open my $fh, ">:raw", "$filename~") {
500	chmod SAVE_MODE, $fh;
501	syswrite $fh, $$rdata;
502	close $fh;
503
504	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
505	chmod SAVE_MODE, $fh;
506	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
507	close $fh;
508	rename "$filename.pst~", "$filename.pst";
509	} else {
510	unlink "$filename.pst";
511	}
512
513	rename "$filename~", $filename;
514	} else {
515	warn "FATAL: $filename~: $!\n";
516	}
517	} else {
518	unlink $filename;
519	unlink "$filename.pst";
520	}
521	}
522
523	sub object_thawer_load {
524	my ($filename) = @_;
525
526	local $/;
527
528	my $av;
529
530	#TODO: use sysread etc.
531	if (open my $data, "<:raw:perlio", $filename) {
532	$data = <$data>;
533	if (open my $pst, "<:raw:perlio", "$filename.pst") {
534	$av = eval { (Storable::thaw <$pst>)->{objs} };
535	}
536	return ($data, $av);
537	}
538
539	()
540	}
541
542	attach_to_objects
543	prio => -1000000,	827	prio => -1000000,
		828	on_instantiate => sub {
		829	my ($obj, $data) = @_;
		830
		831	$data = from_json $data;
		832
		833	for (@$data) {
		834	my ($name, $args) = @$_;
		835
		836	$obj->attach ($name, %{$args || {} });
		837	}
		838	},
		839	on_reattach => \&reattach,
544	on_clone => sub {	840	on_clone => sub {
545	my ($src, $dst) = @_;	841	my ($src, $dst) = @_;
546		842
547	@{$dst->registry} = @{$src->registry};	843	@{$dst->registry} = @{$src->registry};
548		844
549	%$dst = %$src;	845	%$dst = %$src;
550		846
551	%{$dst->{_attachment}} = %{$src->{_attachment}}	847	%{$dst->{_attachment}} = %{$src->{_attachment}}
552	if exists $src->{_attachment};	848	if exists $src->{_attachment};
553	},	849	},
554	;	850	);
		851
		852	sub object_freezer_save {
		853	my ($filename, $rdata, $objs) = @_;
		854
		855	sync_job {
		856	if (length $$rdata) {
		857	warn sprintf "saving %s (%d,%d)\n",
		858	$filename, length $$rdata, scalar @$objs;
		859
		860	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		861	chmod SAVE_MODE, $fh;
		862	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		863	aio_fsync $fh;
		864	close $fh;
		865
		866	if (@$objs) {
		867	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		868	chmod SAVE_MODE, $fh;
		869	my $data = Storable::nfreeze { version => 1, objs => $objs };
		870	aio_write $fh, 0, (length $data), $data, 0;
		871	aio_fsync $fh;
		872	close $fh;
		873	aio_rename "$filename.pst~", "$filename.pst";
		874	}
		875	} else {
		876	aio_unlink "$filename.pst";
		877	}
		878
		879	aio_rename "$filename~", $filename;
		880	} else {
		881	warn "FATAL: $filename~: $!\n";
		882	}
		883	} else {
		884	aio_unlink $filename;
		885	aio_unlink "$filename.pst";
		886	}
		887	}
		888	}
		889
		890	sub object_freezer_as_string {
		891	my ($rdata, $objs) = @_;
		892
		893	use Data::Dumper;
		894
		895	$$rdata . Dumper $objs
		896	}
		897
		898	sub object_thawer_load {
		899	my ($filename) = @_;
		900
		901	my ($data, $av);
		902
		903	(aio_load $filename, $data) >= 0
		904	or return;
		905
		906	unless (aio_stat "$filename.pst") {
		907	(aio_load "$filename.pst", $av) >= 0
		908	or return;
		909	$av = eval { (Storable::thaw $av)->{objs} };
		910	}
		911
		912	warn sprintf "loading %s (%d)\n",
		913	$filename, length $data, scalar @{$av || []};#d#
		914	return ($data, $av);
		915	}
555		916
556	#############################################################################	917	#############################################################################
557	# old plug-in events	918	# command handling &c
558		919
559	sub inject_event {	920	=item cf::register_command $name => \&callback($ob,$args);
560	my $extension = shift;
561	my $event_code = shift;
562		921
563	my $cb = $hook[$event_code]{$extension}	922	Register a callback for execution when the client sends the user command
564	or return;	923	$name.
565		924
566	&$cb	925	=cut
567	}
568
569	sub inject_global_event {
570	my $event = shift;
571
572	my $cb = $hook[$event]
573	or return;
574
575	List::Util::max map &$_, values %$cb
576	}
577
578	sub inject_command {
579	my ($name, $obj, $params) = @_;
580
581	for my $cmd (@{ $command{$name} }) {
582	$cmd->[1]->($obj, $params);
583	}
584
585	-1
586	}
587		926
588	sub register_command {	927	sub register_command {
589	my ($name, $time, $cb) = @_;	928	my ($name, $cb) = @_;
590		929
591	my $caller = caller;	930	my $caller = caller;
592	#warn "registering command '$name/$time' to '$caller'";	931	#warn "registering command '$name/$time' to '$caller'";
593		932
594	push @{ $command{$name} }, [$time, $cb, $caller];	933	push @{ $COMMAND{$name} }, [$caller, $cb];
595	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
596	}	934	}
		935
		936	=item cf::register_extcmd $name => \&callback($pl,$packet);
		937
		938	Register a callbackf ro execution when the client sends an extcmd packet.
		939
		940	If the callback returns something, it is sent back as if reply was being
		941	called.
		942
		943	=cut
597		944
598	sub register_extcmd {	945	sub register_extcmd {
599	my ($name, $cb) = @_;	946	my ($name, $cb) = @_;
600		947
601	my $caller = caller;	948	$EXTCMD{$name} = $cb;
602	#warn "registering extcmd '$name' to '$caller'";
603
604	$extcmd{$name} = [$cb, $caller];
605	}	949	}
606		950
607	sub register {	951	cf::player->attach (
608	my ($base, $pkg) = @_;	952	on_command => sub {
		953	my ($pl, $name, $params) = @_;
609		954
610	#TODO	955	my $cb = $COMMAND{$name}
611	}	956	or return;
		957
		958	for my $cmd (@$cb) {
		959	$cmd->[1]->($pl->ob, $params);
		960	}
		961
		962	cf::override;
		963	},
		964	on_extcmd => sub {
		965	my ($pl, $buf) = @_;
		966
		967	my $msg = eval { from_json $buf };
		968
		969	if (ref $msg) {
		970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		971	if (my %reply = $cb->($pl, $msg)) {
		972	$pl->ext_reply ($msg->{msgid}, %reply);
		973	}
		974	}
		975	} else {
		976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		977	}
		978
		979	cf::override;
		980	},
		981	);
612		982
613	sub load_extension {	983	sub load_extension {
614	my ($path) = @_;	984	my ($path) = @_;
615		985
616	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
…		…
629	. "#line 1 \"$path\"\n{\n"	999	. "#line 1 \"$path\"\n{\n"
630	. (do { local $/; <$fh> })	1000	. (do { local $/; <$fh> })
631	. "\n};\n1";	1001	. "\n};\n1";
632		1002
633	eval $source	1003	eval $source
634	or die "$path: $@";	1004	or die $@ ? "$path: $@\n"
		1005	: "extension disabled.\n";
635		1006
636	push @exts, $pkg;	1007	push @EXTS, $pkg;
637	$ext_pkg{$base} = $pkg;
638
639	# no strict 'refs';
640	# @{"$pkg\::ISA"} = ext::;
641
642	register $base, $pkg;
643	}
644
645	sub unload_extension {
646	my ($pkg) = @_;
647
648	warn "removing extension $pkg\n";
649
650	# remove hooks
651	#TODO
652	# for my $idx (0 .. $#PLUGIN_EVENT) {
653	# delete $hook[$idx]{$pkg};
654	# }
655
656	# remove commands
657	for my $name (keys %command) {
658	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
659
660	if (@cb) {
661	$command{$name} = \@cb;
662	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
663	} else {
664	delete $command{$name};
665	delete $COMMAND{"$name\000"};
666	}
667	}
668
669	# remove extcmds
670	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
671	delete $extcmd{$name};
672	}
673
674	if (my $cb = $pkg->can ("unload")) {
675	eval {
676	$cb->($pkg);
677	1
678	} or warn "$pkg unloaded, but with errors: $@";
679	}
680
681	Symbol::delete_package $pkg;
682	}	1008	}
683		1009
684	sub load_extensions {	1010	sub load_extensions {
685	my $LIBDIR = maps_directory "perl";
686
687	for my $ext (<$LIBDIR/*.ext>) {	1011	for my $ext (<$LIBDIR/*.ext>) {
688	next unless -r $ext;	1012	next unless -r $ext;
689	eval {	1013	eval {
690	load_extension $ext;	1014	load_extension $ext;
691	1	1015	1
692	} or warn "$ext not loaded: $@";	1016	} or warn "$ext not loaded: $@";
693	}	1017	}
694	}	1018	}
695		1019
696	#############################################################################	1020	#############################################################################
697	# extcmd framework, basically convert ext <msg>
698	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
699
700	attach_to_players
701	on_extcmd => sub {
702	my ($pl, $buf) = @_;
703
704	my $msg = eval { from_json $buf };
705
706	if (ref $msg) {
707	if (my $cb = $extcmd{$msg->{msgtype}}) {
708	if (my %reply = $cb->[0]->($pl, $msg)) {
709	$pl->ext_reply ($msg->{msgid}, %reply);
710	}
711	}
712	} else {
713	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
714	}
715
716	cf::override;
717	},
718	;
719
720	#############################################################################
721	# load/save/clean perl data associated with a map	1021	# load/save/clean perl data associated with a map
722		1022
723	*cf::mapsupport::on_clean = sub {	1023	*cf::mapsupport::on_clean = sub {
724	my ($map) = @_;	1024	my ($map) = @_;
725		1025
…		…
727	defined $path or return;	1027	defined $path or return;
728		1028
729	unlink "$path.pst";	1029	unlink "$path.pst";
730	};	1030	};
731		1031
732	attach_to_maps prio => -10000, package => cf::mapsupport::;	1032	cf::map->attach (prio => -10000, package => cf::mapsupport::);
733		1033
734	#############################################################################	1034	#############################################################################
735	# load/save perl data associated with player->ob objects
736		1035
737	sub all_objects(@) {	1036	=head2 CORE EXTENSIONS
738	@_, map all_objects ($_->inv), @_
739	}
740		1037
741	# TODO: compatibility cruft, remove when no longer needed	1038	Functions and methods that extend core crossfire objects.
742	attach_to_players	1039
743	on_load => sub {	1040	=cut
		1041
		1042	package cf::player;
		1043
		1044	use Coro::AIO;
		1045
		1046	=head3 cf::player
		1047
		1048	=over 4
		1049
		1050	=item cf::player::find $login
		1051
		1052	Returns the given player object, loading it if necessary (might block).
		1053
		1054	=cut
		1055
		1056	sub playerdir($) {
		1057	cf::localdir
		1058	. "/"
		1059	. cf::playerdir
		1060	. "/"
		1061	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1062	}
		1063
		1064	sub path($) {
		1065	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1066
		1067	(playerdir $login) . "/$login.pl"
		1068	}
		1069
		1070	sub find_active($) {
		1071	$cf::PLAYER{$_[0]}
		1072	and $cf::PLAYER{$_[0]}->active
		1073	and $cf::PLAYER{$_[0]}
		1074	}
		1075
		1076	sub exists($) {
		1077	my ($login) = @_;
		1078
		1079	$cf::PLAYER{$login}
		1080	or cf::sync_job { !aio_stat $login }
		1081	}
		1082
		1083	sub find($) {
		1084	return $cf::PLAYER{$_[0]} || do {
		1085	my $login = $_[0];
		1086
		1087	my $guard = cf::lock_acquire "user_find:$login";
		1088
		1089	$cf::PLAYER{$_[0]} || do {
		1090	my $pl = load_pl path $login
		1091	or return;
		1092	$cf::PLAYER{$login} = $pl
		1093	}
		1094	}
		1095	}
		1096
		1097	sub save($) {
		1098	my ($pl) = @_;
		1099
		1100	return if $pl->{deny_save};
		1101
		1102	my $path = path $pl;
		1103	my $guard = cf::lock_acquire "user_save:$path";
		1104
		1105	return if $pl->{deny_save};
		1106
		1107	aio_mkdir playerdir $pl, 0770;
		1108	$pl->{last_save} = $cf::RUNTIME;
		1109
		1110	$pl->save_pl ($path);
		1111	Coro::cede;
		1112	}
		1113
		1114	sub new($) {
		1115	my ($login) = @_;
		1116
		1117	my $self = create;
		1118
		1119	$self->ob->name ($login);
		1120	$self->{deny_save} = 1;
		1121
		1122	$cf::PLAYER{$login} = $self;
		1123
		1124	$self
		1125	}
		1126
		1127	=item $pl->quit_character
		1128
		1129	Nukes the player without looking back. If logged in, the connection will
		1130	be destroyed. May block for a long time.
		1131
		1132	=cut
		1133
		1134	sub quit_character {
		1135	my ($pl) = @_;
		1136
		1137	$pl->{deny_save} = 1;
		1138	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1139
		1140	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1141	$pl->deactivate;
		1142	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1143	$pl->ns->destroy if $pl->ns;
		1144
		1145	my $path = playerdir $pl;
		1146	my $temp = "$path~$cf::RUNTIME~deleting~";
		1147	aio_rename $path, $temp;
		1148	delete $cf::PLAYER{$pl->ob->name};
		1149	$pl->destroy;
		1150	IO::AIO::aio_rmtree $temp;
		1151	}
		1152
		1153	=item cf::player::list_logins
		1154
		1155	Returns am arrayref of all valid playernames in the system, can take a
		1156	while and may block, so not sync_job-capable, ever.
		1157
		1158	=cut
		1159
		1160	sub list_logins {
		1161	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1162	or return [];
		1163
		1164	my @logins;
		1165
		1166	for my $login (@$dirs) {
		1167	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1168	aio_read $fh, 0, 512, my $buf, 0 or next;
		1169	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1170
		1171	utf8::decode $login;
		1172	push @logins, $login;
		1173	}
		1174
		1175	\@logins
		1176	}
		1177
		1178	=item $player->maps
		1179
		1180	Returns an arrayref of cf::path's of all maps that are private for this
		1181	player. May block.
		1182
		1183	=cut
		1184
		1185	sub maps($) {
		1186	my ($pl) = @_;
		1187
		1188	my $files = aio_readdir playerdir $pl
		1189	or return;
		1190
		1191	my @paths;
		1192
		1193	for (@$files) {
		1194	utf8::decode $_;
		1195	next if /\.(?:pl|pst)$/;
		1196	next unless /^$PATH_SEP/o;
		1197
		1198	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
		1199	}
		1200
		1201	\@paths
		1202	}
		1203
		1204	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1205
		1206	Sends an ext reply to the player.
		1207
		1208	=cut
		1209
		1210	sub ext_reply($$$%) {
		1211	my ($self, $id, %msg) = @_;
		1212
		1213	$msg{msgid} = $id;
		1214
		1215	$self->send ("ext " . cf::to_json \%msg);
		1216	}
		1217
		1218	package cf;
		1219
		1220	=back
		1221
		1222
		1223	=head3 cf::map
		1224
		1225	=over 4
		1226
		1227	=cut
		1228
		1229	package cf::map;
		1230
		1231	use Fcntl;
		1232	use Coro::AIO;
		1233
		1234	our $MAX_RESET = 3600;
		1235	our $DEFAULT_RESET = 3000;
		1236
		1237	sub generate_random_map {
		1238	my ($path, $rmp) = @_;
		1239
		1240	# mit "rum" bekleckern, nicht
		1241	cf::map::_create_random_map
		1242	$path,
		1243	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1244	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1245	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1246	$rmp->{exit_on_final_map},
		1247	$rmp->{xsize}, $rmp->{ysize},
		1248	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1249	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1250	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1251	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1252	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1253	(cf::region::find $rmp->{region})
		1254	}
		1255
		1256	# and all this just because we cannot iterate over
		1257	# all maps in C++...
		1258	sub change_all_map_light {
		1259	my ($change) = @_;
		1260
		1261	$_->change_map_light ($change)
		1262	for grep $_->outdoor, values %cf::MAP;
		1263	}
		1264
		1265	sub try_load_header($) {
744	my ($pl, $path) = @_;	1266	my ($path) = @_;
745		1267
746	for my $o (all_objects $pl->ob) {	1268	utf8::encode $path;
747	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1269	aio_open $path, O_RDONLY, 0
748	$o->set_ob_key_value ("_perl_data");	1270	or return;
749		1271
750	%$o = %{ Storable::thaw pack "H*", $value };	1272	my $map = cf::map::new
		1273	or return;
		1274
		1275	# for better error messages only, will be overwritten
		1276	$map->path ($path);
		1277
		1278	$map->load_header ($path)
		1279	or return;
		1280
		1281	$map->{load_path} = $path;
		1282
		1283	$map
		1284	}
		1285
		1286	sub find;
		1287	sub find {
		1288	my ($path, $origin) = @_;
		1289
		1290	#warn "find<$path,$origin>\n";#d#
		1291
		1292	$path = new cf::path $path, $origin && $origin->path;
		1293	my $key = $path->as_string;
		1294
		1295	cf::lock_wait "map_find:$key";
		1296
		1297	$cf::MAP{$key} || do {
		1298	my $guard = cf::lock_acquire "map_find:$key";
		1299
		1300	# do it the slow way
		1301	my $map = try_load_header $path->save_path;
		1302
		1303	Coro::cede;
		1304
		1305	if ($map) {
		1306	$map->last_access ((delete $map->{last_access})
		1307	|| $cf::RUNTIME); #d#
		1308	# safety
		1309	$map->{instantiate_time} = $cf::RUNTIME
		1310	if $map->{instantiate_time} > $cf::RUNTIME;
		1311	} else {
		1312	if (my $rmp = $path->random_map_params) {
		1313	$map = generate_random_map $key, $rmp;
		1314	} else {
		1315	$map = try_load_header $path->load_path;
751	}	1316	}
		1317
		1318	$map or return;
		1319
		1320	$map->{load_original} = 1;
		1321	$map->{instantiate_time} = $cf::RUNTIME;
		1322	$map->last_access ($cf::RUNTIME);
		1323	$map->instantiate;
		1324
		1325	# per-player maps become, after loading, normal maps
		1326	$map->per_player (0) if $path->{user_rel};
752	}	1327	}
		1328
		1329	$map->path ($key);
		1330	$map->{path} = $path;
		1331	$map->{last_save} = $cf::RUNTIME;
		1332
		1333	Coro::cede;
		1334
		1335	if ($map->should_reset) {
		1336	$map->reset;
		1337	undef $guard;
		1338	$map = find $path
		1339	or return;
		1340	}
		1341
		1342	$cf::MAP{$key} = $map
753	},	1343	}
754	;	1344	}
755		1345
756	#############################################################################	1346	sub load {
		1347	my ($self) = @_;
757		1348
758	=head2 CORE EXTENSIONS	1349	my $path = $self->{path};
		1350	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
759		1351
760	Functions and methods that extend core crossfire objects.	1352	return if $self->in_memory != cf::MAP_SWAPPED;
		1353
		1354	$self->in_memory (cf::MAP_LOADING);
		1355
		1356	$self->alloc;
		1357	$self->load_objects ($self->{load_path}, 1)
		1358	or return;
		1359
		1360	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1361	if delete $self->{load_original};
		1362
		1363	if (my $uniq = $path->uniq_path) {
		1364	utf8::encode $uniq;
		1365	if (aio_open $uniq, O_RDONLY, 0) {
		1366	$self->clear_unique_items;
		1367	$self->load_objects ($uniq, 0);
		1368	}
		1369	}
		1370
		1371	Coro::cede;
		1372
		1373	# now do the right thing for maps
		1374	$self->link_multipart_objects;
		1375
		1376	if ($self->{path}->is_style_map) {
		1377	$self->{deny_save} = 1;
		1378	$self->{deny_reset} = 1;
		1379	} else {
		1380	$self->fix_auto_apply;
		1381	$self->decay_objects;
		1382	$self->update_buttons;
		1383	$self->set_darkness_map;
		1384	$self->difficulty ($self->estimate_difficulty)
		1385	unless $self->difficulty;
		1386	$self->activate;
		1387	}
		1388
		1389	Coro::cede;
		1390
		1391	$self->in_memory (cf::MAP_IN_MEMORY);
		1392	}
		1393
		1394	# find and load all maps in the 3x3 area around a map
		1395	sub load_diag {
		1396	my ($map) = @_;
		1397
		1398	my @diag; # diagonal neighbours
		1399
		1400	for (0 .. 3) {
		1401	my $neigh = $map->tile_path ($_)
		1402	or next;
		1403	$neigh = find $neigh, $map
		1404	or next;
		1405	$neigh->load;
		1406
		1407	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1408	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1409	}
		1410
		1411	for (@diag) {
		1412	my $neigh = find @$_
		1413	or next;
		1414	$neigh->load;
		1415	}
		1416	}
		1417
		1418	sub find_sync {
		1419	my ($path, $origin) = @_;
		1420
		1421	cf::sync_job { find $path, $origin }
		1422	}
		1423
		1424	sub do_load_sync {
		1425	my ($map) = @_;
		1426
		1427	cf::sync_job { $map->load };
		1428	}
		1429
		1430	our %MAP_PREFETCH;
		1431	our $MAP_PREFETCHER = Coro::async {
		1432	while () {
		1433	while (%MAP_PREFETCH) {
		1434	my $key = each %MAP_PREFETCH
		1435	or next;
		1436	my $path = delete $MAP_PREFETCH{$key};
		1437
		1438	my $map = find $path
		1439	or next;
		1440	$map->load;
		1441	}
		1442	Coro::schedule;
		1443	}
		1444	};
		1445
		1446	sub find_async {
		1447	my ($path, $origin) = @_;
		1448
		1449	$path = new cf::path $path, $origin && $origin->path;
		1450	my $key = $path->as_string;
		1451
		1452	if (my $map = $cf::MAP{$key}) {
		1453	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1454	}
		1455
		1456	$MAP_PREFETCH{$key} = $path;
		1457	$MAP_PREFETCHER->ready;
		1458
		1459	()
		1460	}
		1461
		1462	sub save {
		1463	my ($self) = @_;
		1464
		1465	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1466
		1467	$self->{last_save} = $cf::RUNTIME;
		1468
		1469	return unless $self->dirty;
		1470
		1471	my $save = $self->{path}->save_path; utf8::encode $save;
		1472	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1473
		1474	$self->{load_path} = $save;
		1475
		1476	return if $self->{deny_save};
		1477
		1478	local $self->{last_access} = $self->last_access;#d#
		1479
		1480	cf::async {
		1481	$_->contr->save for $self->players;
		1482	};
		1483
		1484	if ($uniq) {
		1485	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1486	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1487	} else {
		1488	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1489	}
		1490	}
		1491
		1492	sub swap_out {
		1493	my ($self) = @_;
		1494
		1495	# save first because save cedes
		1496	$self->save;
		1497
		1498	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1499
		1500	return if $self->players;
		1501	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1502	return if $self->{deny_save};
		1503
		1504	$self->clear;
		1505	$self->in_memory (cf::MAP_SWAPPED);
		1506	}
		1507
		1508	sub reset_at {
		1509	my ($self) = @_;
		1510
		1511	# TODO: safety, remove and allow resettable per-player maps
		1512	return 1e99 if $self->{path}{user_rel};
		1513	return 1e99 if $self->{deny_reset};
		1514
		1515	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1516	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1517
		1518	$time + $to
		1519	}
		1520
		1521	sub should_reset {
		1522	my ($self) = @_;
		1523
		1524	$self->reset_at <= $cf::RUNTIME
		1525	}
		1526
		1527	sub unlink_save {
		1528	my ($self) = @_;
		1529
		1530	utf8::encode (my $save = $self->{path}->save_path);
		1531	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1532	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1533	}
		1534
		1535	sub rename {
		1536	my ($self, $new_path) = @_;
		1537
		1538	$self->unlink_save;
		1539
		1540	delete $cf::MAP{$self->path};
		1541	$self->{path} = new cf::path $new_path;
		1542	$self->path ($self->{path}->as_string);
		1543	$cf::MAP{$self->path} = $self;
		1544
		1545	$self->save;
		1546	}
		1547
		1548	sub reset {
		1549	my ($self) = @_;
		1550
		1551	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1552
		1553	return if $self->players;
		1554	return if $self->{path}{user_rel};#d#
		1555
		1556	warn "resetting map ", $self->path;#d#
		1557
		1558	delete $cf::MAP{$self->path};
		1559
		1560	$_->clear_links_to ($self) for values %cf::MAP;
		1561
		1562	$self->unlink_save;
		1563	$self->destroy;
		1564	}
		1565
		1566	my $nuke_counter = "aaaa";
		1567
		1568	sub nuke {
		1569	my ($self) = @_;
		1570
		1571	$self->{deny_save} = 1;
		1572	$self->reset_timeout (1);
		1573	$self->rename ("{nuke}/" . ($nuke_counter++));
		1574	$self->reset; # polite request, might not happen
		1575	}
		1576
		1577	sub customise_for {
		1578	my ($map, $ob) = @_;
		1579
		1580	if ($map->per_player) {
		1581	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1582	}
		1583
		1584	$map
		1585	}
		1586
		1587	=item cf::map::unique_maps
		1588
		1589	Returns an arrayref of cf::path's of all shared maps that have
		1590	instantiated unique items. May block.
		1591
		1592	=cut
		1593
		1594	sub unique_maps() {
		1595	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1596	or return;
		1597
		1598	my @paths;
		1599
		1600	for (@$files) {
		1601	utf8::decode $_;
		1602	next if /\.pst$/;
		1603	next unless /^$PATH_SEP/o;
		1604
		1605	push @paths, new cf::path $_;
		1606	}
		1607
		1608	\@paths
		1609	}
		1610
		1611	package cf;
		1612
		1613	=back
		1614
		1615	=head3 cf::object
		1616
		1617	=cut
		1618
		1619	package cf::object;
761		1620
762	=over 4	1621	=over 4
763		1622
764	=item cf::player::exists $login	1623	=item $ob->inv_recursive
765		1624
766	Returns true when the given account exists.	1625	Returns the inventory of the object _and_ their inventories, recursively.
767		1626
768	=cut	1627	=cut
769		1628
770	sub cf::player::exists($) {	1629	sub inv_recursive_;
771	cf::player::find $_[0]	1630	sub inv_recursive_ {
772	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1631	map { $_, inv_recursive_ $_->inv } @_
773	}	1632	}
774		1633
		1634	sub inv_recursive {
		1635	inv_recursive_ inv $_[0]
		1636	}
		1637
		1638	package cf;
		1639
		1640	=back
		1641
		1642	=head3 cf::object::player
		1643
		1644	=over 4
		1645
775	=item $player->reply ($npc, $msg[, $flags])	1646	=item $player_object->reply ($npc, $msg[, $flags])
776		1647
777	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1648	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
778	can be C<undef>. Does the right thing when the player is currently in a	1649	can be C<undef>. Does the right thing when the player is currently in a
779	dialogue with the given NPC character.	1650	dialogue with the given NPC character.
780		1651
781	=cut	1652	=cut
782		1653
783	# rough implementation of a future "reply" method that works	1654	# rough implementation of a future "reply" method that works
784	# with dialog boxes.	1655	# with dialog boxes.
		1656	#TODO: the first argument must go, split into a $npc->reply_to ( method
785	sub cf::object::player::reply($$$;$) {	1657	sub cf::object::player::reply($$$;$) {
786	my ($self, $npc, $msg, $flags) = @_;	1658	my ($self, $npc, $msg, $flags) = @_;
787		1659
788	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1660	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
789		1661
…		…
793	$msg = $npc->name . " says: $msg" if $npc;	1665	$msg = $npc->name . " says: $msg" if $npc;
794	$self->message ($msg, $flags);	1666	$self->message ($msg, $flags);
795	}	1667	}
796	}	1668	}
797		1669
798	=item $player->ext_reply ($msgid, $msgtype, %msg)	1670	=item $player_object->may ("access")
799		1671
800	Sends an ext reply to the player.	1672	Returns wether the given player is authorized to access resource "access"
		1673	(e.g. "command_wizcast").
801		1674
802	=cut	1675	=cut
803		1676
804	sub cf::player::ext_reply($$$%) {	1677	sub cf::object::player::may {
		1678	my ($self, $access) = @_;
		1679
		1680	$self->flag (cf::FLAG_WIZ) ||
		1681	(ref $cf::CFG{"may_$access"}
		1682	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1683	: $cf::CFG{"may_$access"})
		1684	}
		1685
		1686	=item $player_object->enter_link
		1687
		1688	Freezes the player and moves him/her to a special map (C<{link}>).
		1689
		1690	The player should be reaosnably safe there for short amounts of time. You
		1691	I<MUST> call C<leave_link> as soon as possible, though.
		1692
		1693	=item $player_object->leave_link ($map, $x, $y)
		1694
		1695	Moves the player out of the specila link map onto the given map. If the
		1696	map is not valid (or omitted), the player will be moved back to the
		1697	location he/she was before the call to C<enter_link>, or, if that fails,
		1698	to the emergency map position.
		1699
		1700	Might block.
		1701
		1702	=cut
		1703
		1704	sub cf::object::player::enter_link {
		1705	my ($self) = @_;
		1706
		1707	$self->deactivate_recursive;
		1708
		1709	return if $self->map == $LINK_MAP;
		1710
		1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1712	if $self->map;
		1713
		1714	$self->enter_map ($LINK_MAP, 20, 20);
		1715	}
		1716
		1717	sub cf::object::player::leave_link {
		1718	my ($self, $map, $x, $y) = @_;
		1719
		1720	my $link_pos = delete $self->{_link_pos};
		1721
		1722	unless ($map) {
		1723	# restore original map position
		1724	($map, $x, $y) = @{ $link_pos || [] };
		1725	$map = cf::map::find $map;
		1726
		1727	unless ($map) {
		1728	($map, $x, $y) = @$EMERGENCY_POSITION;
		1729	$map = cf::map::find $map
		1730	or die "FATAL: cannot load emergency map\n";
		1731	}
		1732	}
		1733
		1734	($x, $y) = (-1, -1)
		1735	unless (defined $x) && (defined $y);
		1736
		1737	# use -1 or undef as default coordinates, not 0, 0
		1738	($x, $y) = ($map->enter_x, $map->enter_y)
		1739	if $x <=0 && $y <= 0;
		1740
		1741	$map->load;
		1742	$map->load_diag;
		1743
		1744	return unless $self->contr->active;
		1745	$self->activate_recursive;
		1746	$self->enter_map ($map, $x, $y);
		1747	}
		1748
		1749	cf::player->attach (
		1750	on_logout => sub {
		1751	my ($pl) = @_;
		1752
		1753	# abort map switching before logout
		1754	if ($pl->ob->{_link_pos}) {
		1755	cf::sync_job {
		1756	$pl->ob->leave_link
		1757	};
		1758	}
		1759	},
		1760	on_login => sub {
		1761	my ($pl) = @_;
		1762
		1763	# try to abort aborted map switching on player login :)
		1764	# should happen only on crashes
		1765	if ($pl->ob->{_link_pos}) {
		1766	$pl->ob->enter_link;
		1767	(async {
		1768	# we need this sleep as the login has a concurrent enter_exit running
		1769	# and this sleep increases chances of the player not ending up in scorn
		1770	$pl->ob->reply (undef,
		1771	"There was an internal problem at your last logout, "
		1772	. "the server will try to bring you to your intended destination in a second.",
		1773	cf::NDI_RED);
		1774	Coro::Timer::sleep 1;
		1775	$pl->ob->leave_link;
		1776	})->prio (2);
		1777	}
		1778	},
		1779	);
		1780
		1781	=item $player_object->goto ($path, $x, $y)
		1782
		1783	=cut
		1784
		1785	sub cf::object::player::goto {
		1786	my ($self, $path, $x, $y) = @_;
		1787
		1788	$path = new cf::path $path;
		1789
		1790	$self->enter_link;
		1791
		1792	(async {
		1793	my $map = cf::map::find $path->as_string;
		1794	$map = $map->customise_for ($self) if $map;
		1795
		1796	# warn "entering ", $map->path, " at ($x, $y)\n"
		1797	# if $map;
		1798
		1799	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1800
		1801	$self->leave_link ($map, $x, $y);
		1802	})->prio (1);
		1803	}
		1804
		1805	=item $player_object->enter_exit ($exit_object)
		1806
		1807	=cut
		1808
		1809	sub parse_random_map_params {
		1810	my ($spec) = @_;
		1811
		1812	my $rmp = { # defaults
		1813	xsize => 10,
		1814	ysize => 10,
		1815	};
		1816
		1817	for (split /\n/, $spec) {
		1818	my ($k, $v) = split /\s+/, $_, 2;
		1819
		1820	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1821	}
		1822
		1823	$rmp
		1824	}
		1825
		1826	sub prepare_random_map {
		1827	my ($exit) = @_;
		1828
		1829	# all this does is basically replace the /! path by
		1830	# a new random map path (?random/...) with a seed
		1831	# that depends on the exit object
		1832
		1833	my $rmp = parse_random_map_params $exit->msg;
		1834
		1835	if ($exit->map) {
		1836	$rmp->{region} = $exit->map->region_name;
		1837	$rmp->{origin_map} = $exit->map->path;
		1838	$rmp->{origin_x} = $exit->x;
		1839	$rmp->{origin_y} = $exit->y;
		1840	}
		1841
		1842	$rmp->{random_seed} ||= $exit->random_seed;
		1843
		1844	my $data = cf::to_json $rmp;
		1845	my $md5 = Digest::MD5::md5_hex $data;
		1846
		1847	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1848	aio_write $fh, 0, (length $data), $data, 0;
		1849
		1850	$exit->slaying ("?random/$md5");
		1851	$exit->msg (undef);
		1852	}
		1853	}
		1854
		1855	sub cf::object::player::enter_exit {
805	my ($self, $id, %msg) = @_;	1856	my ($self, $exit) = @_;
806		1857
807	$msg{msgid} = $id;	1858	return unless $self->type == cf::PLAYER;
808		1859
809	$self->send ("ext " . to_json \%msg);	1860	$self->enter_link;
		1861
		1862	(async {
		1863	$self->deactivate_recursive; # just to be sure
		1864	unless (eval {
		1865	prepare_random_map $exit
		1866	if $exit->slaying eq "/!";
		1867
		1868	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1869	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1870
		1871	1;
		1872	}) {
		1873	$self->message ("Something went wrong deep within the crossfire server. "
		1874	. "I'll try to bring you back to the map you were before. "
		1875	. "Please report this to the dungeon master!",
		1876	cf::NDI_UNIQUE | cf::NDI_RED);
		1877
		1878	warn "ERROR in enter_exit: $@";
		1879	$self->leave_link;
		1880	}
		1881	})->prio (1);
810	}	1882	}
		1883
		1884	=head3 cf::client
		1885
		1886	=over 4
		1887
		1888	=item $client->send_drawinfo ($text, $flags)
		1889
		1890	Sends a drawinfo packet to the client. Circumvents output buffering so
		1891	should not be used under normal circumstances.
		1892
		1893	=cut
		1894
		1895	sub cf::client::send_drawinfo {
		1896	my ($self, $text, $flags) = @_;
		1897
		1898	utf8::encode $text;
		1899	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1900	}
		1901
		1902
		1903	=item $success = $client->query ($flags, "text", \&cb)
		1904
		1905	Queues a query to the client, calling the given callback with
		1906	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1907	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1908
		1909	Queries can fail, so check the return code. Or don't, as queries will become
		1910	reliable at some point in the future.
		1911
		1912	=cut
		1913
		1914	sub cf::client::query {
		1915	my ($self, $flags, $text, $cb) = @_;
		1916
		1917	return unless $self->state == ST_PLAYING
		1918	|| $self->state == ST_SETUP
		1919	|| $self->state == ST_CUSTOM;
		1920
		1921	$self->state (ST_CUSTOM);
		1922
		1923	utf8::encode $text;
		1924	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1925
		1926	$self->send_packet ($self->{query_queue}[0][0])
		1927	if @{ $self->{query_queue} } == 1;
		1928	}
		1929
		1930	cf::client->attach (
		1931	on_reply => sub {
		1932	my ($ns, $msg) = @_;
		1933
		1934	# this weird shuffling is so that direct followup queries
		1935	# get handled first
		1936	my $queue = delete $ns->{query_queue}
		1937	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1938
		1939	(shift @$queue)->[1]->($msg);
		1940
		1941	push @{ $ns->{query_queue} }, @$queue;
		1942
		1943	if (@{ $ns->{query_queue} } == @$queue) {
		1944	if (@$queue) {
		1945	$ns->send_packet ($ns->{query_queue}[0][0]);
		1946	} else {
		1947	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1948	}
		1949	}
		1950	},
		1951	);
		1952
		1953	=item $client->async (\&cb)
		1954
		1955	Create a new coroutine, running the specified callback. The coroutine will
		1956	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1957	or loss of connection).
		1958
		1959	=cut
		1960
		1961	sub cf::client::async {
		1962	my ($self, $cb) = @_;
		1963
		1964	my $coro = &Coro::async ($cb);
		1965
		1966	$coro->on_destroy (sub {
		1967	delete $self->{_coro}{$coro+0};
		1968	});
		1969
		1970	$self->{_coro}{$coro+0} = $coro;
		1971
		1972	$coro
		1973	}
		1974
		1975	cf::client->attach (
		1976	on_destroy => sub {
		1977	my ($ns) = @_;
		1978
		1979	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1980	},
		1981	);
811		1982
812	=back	1983	=back
813		1984
814	=cut
815
816	#############################################################################
817		1985
818	=head2 SAFE SCRIPTING	1986	=head2 SAFE SCRIPTING
819		1987
820	Functions that provide a safe environment to compile and execute	1988	Functions that provide a safe environment to compile and execute
821	snippets of perl code without them endangering the safety of the server	1989	snippets of perl code without them endangering the safety of the server
822	itself. Looping constructs, I/O operators and other built-in functionality	1990	itself. Looping constructs, I/O operators and other built-in functionality
823	is not available in the safe scripting environment, and the number of	1991	is not available in the safe scripting environment, and the number of
824	functions and methods that cna be called is greatly reduced.	1992	functions and methods that can be called is greatly reduced.
825		1993
826	=cut	1994	=cut
827		1995
828	our $safe = new Safe "safe";	1996	our $safe = new Safe "safe";
829	our $safe_hole = new Safe::Hole;	1997	our $safe_hole = new Safe::Hole;
…		…
836		2004
837	=pod	2005	=pod
838		2006
839	The following fucntions and emthods are available within a safe environment:	2007	The following fucntions and emthods are available within a safe environment:
840		2008
841	cf::object contr pay_amount pay_player	2009	cf::object contr pay_amount pay_player map
842	cf::object::player player	2010	cf::object::player player
843	cf::player peaceful	2011	cf::player peaceful
		2012	cf::map trigger
844		2013
845	=cut	2014	=cut
846		2015
847	for (	2016	for (
848	["cf::object" => qw(contr pay_amount pay_player)],	2017	["cf::object" => qw(contr pay_amount pay_player map)],
849	["cf::object::player" => qw(player)],	2018	["cf::object::player" => qw(player)],
850	["cf::player" => qw(peaceful)],	2019	["cf::player" => qw(peaceful)],
		2020	["cf::map" => qw(trigger)],
851	) {	2021	) {
852	no strict 'refs';	2022	no strict 'refs';
853	my ($pkg, @funs) = @$_;	2023	my ($pkg, @funs) = @$_;
854	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	2024	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
855	for @funs;	2025	for @funs;
…		…
965		2135
966	Immediately write the database to disk I<if it is dirty>.	2136	Immediately write the database to disk I<if it is dirty>.
967		2137
968	=cut	2138	=cut
969		2139
		2140	our $DB;
		2141
970	{	2142	{
971	my $db;
972	my $path = cf::localdir . "/database.pst";	2143	my $path = cf::localdir . "/database.pst";
973		2144
974	sub db_load() {	2145	sub db_load() {
975	warn "loading database $path\n";#d# remove later
976	$db = stat $path ? Storable::retrieve $path : { };	2146	$DB = stat $path ? Storable::retrieve $path : { };
977	}	2147	}
978		2148
979	my $pid;	2149	my $pid;
980		2150
981	sub db_save() {	2151	sub db_save() {
982	warn "saving database $path\n";#d# remove later
983	waitpid $pid, 0 if $pid;	2152	waitpid $pid, 0 if $pid;
984	if (0 == ($pid = fork)) {	2153	if (0 == ($pid = fork)) {
985	$db->{_meta}{version} = 1;	2154	$DB->{_meta}{version} = 1;
986	Storable::nstore $db, "$path~";	2155	Storable::nstore $DB, "$path~";
987	rename "$path~", $path;	2156	rename "$path~", $path;
988	cf::_exit 0 if defined $pid;	2157	cf::_exit 0 if defined $pid;
989	}	2158	}
990	}	2159	}
991		2160
…		…
994	sub db_sync() {	2163	sub db_sync() {
995	db_save if $dirty;	2164	db_save if $dirty;
996	undef $dirty;	2165	undef $dirty;
997	}	2166	}
998		2167
999	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	2168	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1000	db_sync;	2169	db_sync;
1001	});	2170	});
1002		2171
1003	sub db_dirty() {	2172	sub db_dirty() {
1004	$dirty = 1;	2173	$dirty = 1;
1005	$idle->start;	2174	$idle->start;
1006	}	2175	}
1007		2176
1008	sub db_get($;$) {	2177	sub db_get($;$) {
1009	@_ >= 2	2178	@_ >= 2
1010	? $db->{$_[0]}{$_[1]}	2179	? $DB->{$_[0]}{$_[1]}
1011	: ($db->{$_[0]} ||= { })	2180	: ($DB->{$_[0]} ||= { })
1012	}	2181	}
1013		2182
1014	sub db_put($$;$) {	2183	sub db_put($$;$) {
1015	if (@_ >= 3) {	2184	if (@_ >= 3) {
1016	$db->{$_[0]}{$_[1]} = $_[2];	2185	$DB->{$_[0]}{$_[1]} = $_[2];
1017	} else {	2186	} else {
1018	$db->{$_[0]} = $_[1];	2187	$DB->{$_[0]} = $_[1];
1019	}	2188	}
1020	db_dirty;	2189	db_dirty;
1021	}	2190	}
1022		2191
1023	attach_global	2192	cf::global->attach (
1024	prio => 10000,	2193	prio => 10000,
1025	on_cleanup => sub {	2194	on_cleanup => sub {
1026	db_sync;	2195	db_sync;
1027	},	2196	},
1028	;	2197	);
1029	}	2198	}
1030		2199
1031	#############################################################################	2200	#############################################################################
1032	# the server's main()	2201	# the server's main()
1033		2202
1034	sub load_cfg {	2203	sub cfg_load {
1035	open my $fh, "<:utf8", cf::confdir . "/config"	2204	open my $fh, "<:utf8", cf::confdir . "/config"
1036	or return;	2205	or return;
1037		2206
1038	local $/;	2207	local $/;
1039	*CFG = YAML::Syck::Load <$fh>;	2208	*CFG = YAML::Syck::Load <$fh>;
1040		2209
1041	use Data::Dumper; warn Dumper \%CFG;	2210	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2211
		2212	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2213	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2214
		2215	if (exists $CFG{mlockall}) {
		2216	eval {
		2217	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2218	and die "WARNING: m(un)lockall failed: $!\n";
		2219	};
		2220	warn $@ if $@;
		2221	}
1042	}	2222	}
1043		2223
1044	sub main {	2224	sub main {
1045	load_cfg;	2225	# we must not ever block the main coroutine
		2226	local $Coro::idle = sub {
		2227	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2228	async { Event::one_event };
		2229	};
		2230
		2231	cfg_load;
1046	db_load;	2232	db_load;
1047	load_extensions;	2233	load_extensions;
1048	Event::loop;	2234	Event::loop;
1049	}	2235	}
1050		2236
1051	#############################################################################	2237	#############################################################################
1052	# initialisation	2238	# initialisation and cleanup
1053		2239
		2240	# install some emergency cleanup handlers
		2241	BEGIN {
		2242	for my $signal (qw(INT HUP TERM)) {
		2243	Event->signal (
		2244	data => WF_AUTOCANCEL,
		2245	signal => $signal,
		2246	cb => sub {
		2247	cf::cleanup "SIG$signal";
		2248	},
		2249	);
		2250	}
		2251	}
		2252
		2253	sub emergency_save() {
		2254	my $freeze_guard = cf::freeze_mainloop;
		2255
		2256	warn "enter emergency perl save\n";
		2257
		2258	cf::sync_job {
		2259	# use a peculiar iteration method to avoid tripping on perl
		2260	# refcount bugs in for. also avoids problems with players
		2261	# and maps saved/Destroyed asynchronously.
		2262	warn "begin emergency player save\n";
		2263	for my $login (keys %cf::PLAYER) {
		2264	my $pl = $cf::PLAYER{$login} or next;
		2265	$pl->valid or next;
		2266	$pl->save;
		2267	}
		2268	warn "end emergency player save\n";
		2269
		2270	warn "begin emergency map save\n";
		2271	for my $path (keys %cf::MAP) {
		2272	my $map = $cf::MAP{$path} or next;
		2273	$map->valid or next;
		2274	$map->save;
		2275	}
		2276	warn "end emergency map save\n";
		2277	};
		2278
		2279	warn "leave emergency perl save\n";
		2280	}
		2281
1054	sub _perl_reload(&) {	2282	sub reload() {
1055	my ($msg) = @_;	2283	# can/must only be called in main
		2284	if ($Coro::current != $Coro::main) {
		2285	warn "can only reload from main coroutine\n";
		2286	return;
		2287	}
1056		2288
1057	$msg->("reloading...");	2289	warn "reloading...";
		2290
		2291	warn "freezing server";
		2292	my $guard = freeze_mainloop;
		2293	cf::emergency_save;
		2294
		2295	warn "sync database to disk";
		2296	cf::db_sync;
		2297	IO::AIO::flush;
1058		2298
1059	eval {	2299	eval {
		2300	# if anything goes wrong in here, we should simply crash as we already saved
		2301
1060	# cancel all watchers	2302	warn "cancel all watchers";
1061	$_->cancel for Event::all_watchers;	2303	for (Event::all_watchers) {
		2304	$_->cancel if $_->data & WF_AUTOCANCEL;
		2305	}
1062		2306
		2307	warn "cancel all extension coros";
		2308	$_->cancel for values %EXT_CORO;
		2309	%EXT_CORO = ();
		2310
		2311	warn "remove commands";
		2312	%COMMAND = ();
		2313
		2314	warn "remove ext commands";
		2315	%EXTCMD = ();
		2316
1063	# unload all extensions	2317	warn "unload/nuke all extensions";
1064	for (@exts) {	2318	for my $pkg (@EXTS) {
1065	$msg->("unloading <$_>");	2319	warn "unloading <$pkg>";
1066	unload_extension $_;	2320
		2321	if (my $cb = $pkg->can ("unload")) {
		2322	eval {
		2323	$cb->($pkg);
		2324	1
		2325	} or warn "$pkg unloaded, but with errors: $@";
1067	}	2326	}
1068		2327
		2328	Symbol::delete_package $pkg;
		2329	}
		2330
1069	# unload all modules loaded from $LIBDIR	2331	warn "unload all perl modules loaded from $LIBDIR";
1070	while (my ($k, $v) = each %INC) {	2332	while (my ($k, $v) = each %INC) {
1071	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2333	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1072		2334
1073	$msg->("removing <$k>");	2335	warn "removing <$k>";
1074	delete $INC{$k};	2336	delete $INC{$k};
1075		2337
1076	$k =~ s/\.pm$//;	2338	$k =~ s/\.pm$//;
1077	$k =~ s/\//::/g;	2339	$k =~ s/\//::/g;
1078		2340
…		…
1081	}	2343	}
1082		2344
1083	Symbol::delete_package $k;	2345	Symbol::delete_package $k;
1084	}	2346	}
1085		2347
1086	# sync database to disk
1087	cf::db_sync;
1088
1089	# get rid of safe::, as good as possible	2348	warn "get rid of safe::, as good as possible";
1090	Symbol::delete_package "safe::$_"	2349	Symbol::delete_package "safe::$_"
1091	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2350	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1092		2351
1093	# remove register_script_function callbacks
1094	# TODO
1095
1096	# unload cf.pm "a bit"	2352	warn "unload cf.pm \"a bit\"";
1097	delete $INC{"cf.pm"};	2353	delete $INC{"cf.pm"};
1098		2354
1099	# don't, removes xs symbols, too,	2355	# don't, removes xs symbols, too,
1100	# and global variables created in xs	2356	# and global variables created in xs
1101	#Symbol::delete_package __PACKAGE__;	2357	#Symbol::delete_package __PACKAGE__;
1102		2358
1103	# reload cf.pm
1104	$msg->("reloading cf.pm");	2359	warn "reloading cf.pm";
1105	require cf;	2360	require cf;
		2361	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1106		2362
1107	# load database again	2363	warn "load config and database again";
		2364	cf::cfg_load;
1108	cf::db_load;	2365	cf::db_load;
1109		2366
1110	# load extensions	2367	warn "load extensions";
1111	$msg->("load extensions");
1112	cf::load_extensions;	2368	cf::load_extensions;
1113		2369
1114	# reattach attachments to objects	2370	warn "reattach attachments to objects/players";
1115	$msg->("reattach");
1116	_global_reattach;	2371	_global_reattach;
		2372	warn "reattach attachments to maps";
		2373	reattach $_ for values %MAP;
1117	};	2374	};
1118	$msg->($@) if $@;
1119		2375
1120	$msg->("reloaded");	2376	if ($@) {
		2377	warn $@;
		2378	warn "error while reloading, exiting.";
		2379	exit 1;
		2380	}
		2381
		2382	warn "reloaded";
1121	};	2383	};
1122		2384
1123	sub perl_reload() {	2385	#############################################################################
1124	_perl_reload {
1125	warn $_[0];
1126	print "$_[0]\n";
1127	};
1128	}
1129		2386
		2387	unless ($LINK_MAP) {
		2388	$LINK_MAP = cf::map::new;
		2389
		2390	$LINK_MAP->width (41);
		2391	$LINK_MAP->height (41);
		2392	$LINK_MAP->alloc;
		2393	$LINK_MAP->path ("{link}");
		2394	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2395	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2396
		2397	# dirty hack because... archetypes are not yet loaded
		2398	Event->timer (
		2399	after => 10,
		2400	cb => sub {
		2401	$_[0]->w->cancel;
		2402
		2403	# provide some exits "home"
		2404	my $exit = cf::object::new "exit";
		2405
		2406	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2407	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2408	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2409
		2410	$LINK_MAP->insert ($exit->clone, 19, 19);
		2411	$LINK_MAP->insert ($exit->clone, 19, 20);
		2412	$LINK_MAP->insert ($exit->clone, 19, 21);
		2413	$LINK_MAP->insert ($exit->clone, 20, 19);
		2414	$LINK_MAP->insert ($exit->clone, 20, 21);
		2415	$LINK_MAP->insert ($exit->clone, 21, 19);
		2416	$LINK_MAP->insert ($exit->clone, 21, 20);
		2417	$LINK_MAP->insert ($exit->clone, 21, 21);
		2418
		2419	$exit->destroy;
		2420	});
		2421
		2422	$LINK_MAP->{deny_save} = 1;
		2423	$LINK_MAP->{deny_reset} = 1;
		2424
		2425	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2426	}
		2427
1130	register_command "perl-reload", 0, sub {	2428	register_command "reload" => sub {
1131	my ($who, $arg) = @_;	2429	my ($who, $arg) = @_;
1132		2430
1133	if ($who->flag (FLAG_WIZ)) {	2431	if ($who->flag (FLAG_WIZ)) {
1134	_perl_reload {	2432	$who->message ("start of reload.");
1135	warn $_[0];	2433	reload;
1136	$who->message ($_[0]);	2434	$who->message ("end of reload.");
1137	};
1138	}	2435	}
1139	};	2436	};
1140		2437
1141	register "<global>", __PACKAGE__;
1142
1143	unshift @INC, $LIBDIR;	2438	unshift @INC, $LIBDIR;
1144		2439
1145	$TICK_WATCHER = Event->timer (	2440	$TICK_WATCHER = Event->timer (
		2441	reentrant => 0,
1146	prio => 1,	2442	prio => 0,
1147	at => $NEXT_TICK || 1,	2443	at => $NEXT_TICK || $TICK,
		2444	data => WF_AUTOCANCEL,
1148	cb => sub {	2445	cb => sub {
1149	cf::server_tick; # one server iteration	2446	cf::server_tick; # one server iteration
1150		2447	$RUNTIME += $TICK;
1151	my $NOW = Event::time;
1152	$NEXT_TICK += $TICK;	2448	$NEXT_TICK += $TICK;
1153		2449
		2450	$WAIT_FOR_TICK->broadcast;
		2451	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2452
1154	# if we are delayed by four ticks, skip them all	2453	# if we are delayed by four ticks or more, skip them all
1155	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2454	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1156		2455
1157	$TICK_WATCHER->at ($NEXT_TICK);	2456	$TICK_WATCHER->at ($NEXT_TICK);
1158	$TICK_WATCHER->start;	2457	$TICK_WATCHER->start;
1159	},	2458	},
1160	);	2459	);
1161		2460
		2461	IO::AIO::max_poll_time $TICK * 0.2;
		2462
		2463	Event->io (
		2464	fd => IO::AIO::poll_fileno,
		2465	poll => 'r',
		2466	prio => 5,
		2467	data => WF_AUTOCANCEL,
		2468	cb => \&IO::AIO::poll_cb,
		2469	);
		2470
		2471	Event->timer (
		2472	data => WF_AUTOCANCEL,
		2473	after => 0,
		2474	interval => 10,
		2475	cb => sub {
		2476	(Coro::unblock_sub {
		2477	write_runtime
		2478	or warn "ERROR: unable to write runtime file: $!";
		2479	})->();
		2480	},
		2481	);
		2482
		2483	END { cf::emergency_save }
		2484
1162	1	2485	1
1163		2486

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