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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.88 by root, Fri Dec 15 19:29:18 2006 UTC vs.
Revision 1.114 by root, Mon Jan 1 16:00:10 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Digest::MD5;
		21	use Fcntl;
10	use IO::AIO ();	22	use IO::AIO 2.31 ();
11	use YAML::Syck ();	23	use YAML::Syck ();
12	use Time::HiRes;	24	use Time::HiRes;
13	use Event;	25
14	$Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
15		27
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	29	$YAML::Syck::ImplicitUnicode = 1;
18		30
19	use strict;	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
20		32
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		34
23	our %COMMAND = ();	35	our %COMMAND = ();
24	our %COMMAND_TIME = ();	36	our %COMMAND_TIME = ();
25	our %EXTCMD = ();	37	our %EXTCMD = ();
26		38
27	_init_vars;
28
29	our @EVENT;	39	our @EVENT;
30	our $LIBDIR = datadir . "/ext";	40	our $LIBDIR = datadir . "/ext";
31		41
32	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
33	our $TICK_WATCHER;	43	our $TICK_WATCHER;
34	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
35		46
36	our %CFG;	47	our %CFG;
37		48
38	our $UPTIME; $UPTIME ||= time;	49	our $UPTIME; $UPTIME ||= time;
		50	our $RUNTIME;
		51
		52	our %MAP; # all maps
		53	our $LINK_MAP; # the special {link} map
		54	our $FREEZE;
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO;
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		63	open my $fh, "<", cf::localdir . "/runtime"
		64	or die "unable to read runtime file: $!";
		65	$RUNTIME = <$fh> + 0.;
		66	}
		67
		68	mkdir cf::localdir;
		69	mkdir cf::localdir . "/" . cf::playerdir;
		70	mkdir cf::localdir . "/" . cf::tmpdir;
		71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
		73
		74	# a special map that is always available
		75	our $LINK_MAP;
		76
		77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
39		78
40	#############################################################################	79	#############################################################################
41		80
42	=head2 GLOBAL VARIABLES	81	=head2 GLOBAL VARIABLES
43		82
44	=over 4	83	=over 4
45		84
46	=item $cf::UPTIME	85	=item $cf::UPTIME
47		86
48	The timestamp of the server start (so not actually an uptime).	87	The timestamp of the server start (so not actually an uptime).
		88
		89	=item $cf::RUNTIME
		90
		91	The time this server has run, starts at 0 and is increased by $cf::TICK on
		92	every server tick.
49		93
50	=item $cf::LIBDIR	94	=item $cf::LIBDIR
51		95
52	The perl library directory, where extensions and cf-specific modules can	96	The perl library directory, where extensions and cf-specific modules can
53	be found. It will be added to C<@INC> automatically.	97	be found. It will be added to C<@INC> automatically.
		98
		99	=item $cf::NOW
		100
		101	The time of the last (current) server tick.
54		102
55	=item $cf::TICK	103	=item $cf::TICK
56		104
57	The interval between server ticks, in seconds.	105	The interval between server ticks, in seconds.
58		106
…		…
66	=cut	114	=cut
67		115
68	BEGIN {	116	BEGIN {
69	*CORE::GLOBAL::warn = sub {	117	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	118	my $msg = join "", @_;
		119	utf8::encode $msg;
		120
71	$msg .= "\n"	121	$msg .= "\n"
72	unless $msg =~ /\n$/;	122	unless $msg =~ /\n$/;
73		123
74	print STDERR "cfperl: $msg";
75	LOG llevError, "cfperl: $msg";	124	LOG llevError, "cfperl: $msg";
76	};	125	};
77	}	126	}
78		127
		128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
79	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
80		134
81	# we bless all objects into (empty) derived classes to force a method lookup	135	# we bless all objects into (empty) derived classes to force a method lookup
82	# within the Safe compartment.	136	# within the Safe compartment.
83	for my $pkg (qw(	137	for my $pkg (qw(
		138	cf::global cf::attachable
84	cf::object cf::object::player	139	cf::object cf::object::player
85	cf::client_socket cf::player	140	cf::client cf::player
86	cf::arch cf::living	141	cf::arch cf::living
87	cf::map cf::party cf::region	142	cf::map cf::party cf::region
88	)) {	143	)) {
89	no strict 'refs';	144	no strict 'refs';
90	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
…		…
126	sub to_json($) {	181	sub to_json($) {
127	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
128	JSON::Syck::Dump $_[0]	183	JSON::Syck::Dump $_[0]
129	}	184	}
130		185
		186	=item cf::sync_job { BLOCK }
		187
		188	The design of crossfire+ requires that the main coro ($Coro::main) is
		189	always able to handle events or runnable, as crossfire+ is only partly
		190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		191
		192	If it must be done, put the blocking parts into C<sync_job>. This will run
		193	the given BLOCK in another coroutine while waiting for the result. The
		194	server will be frozen during this time, so the block should either finish
		195	fast or be very important.
		196
		197	=cut
		198
		199	sub sync_job(&) {
		200	my ($job) = @_;
		201
		202	if ($Coro::current == $Coro::main) {
		203	# this is the main coro, too bad, we have to block
		204	# till the operation succeeds, freezing the server :/
		205
		206	# TODO: use suspend/resume instead
		207	# (but this is cancel-safe)
		208	local $FREEZE = 1;
		209
		210	my $busy = 1;
		211	my @res;
		212
		213	(Coro::async {
		214	@res = eval { $job->() };
		215	warn $@ if $@;
		216	undef $busy;
		217	})->prio (Coro::PRIO_MAX);
		218
		219	while ($busy) {
		220	Coro::cede_notself;
		221	Event::one_event unless Coro::nready;
		222	}
		223
		224	wantarray ? @res : $res[0]
		225	} else {
		226	# we are in another coroutine, how wonderful, everything just works
		227
		228	$job->()
		229	}
		230	}
		231
		232	=item $coro = cf::coro { BLOCK }
		233
		234	Creates and returns a new coro. This coro is automcatially being canceled
		235	when the extension calling this is being unloaded.
		236
		237	=cut
		238
		239	sub coro(&) {
		240	my $cb = shift;
		241
		242	my $coro; $coro = async {
		243	eval {
		244	$cb->();
		245	};
		246	warn $@ if $@;
		247	};
		248
		249	$coro->on_destroy (sub {
		250	delete $EXT_CORO{$coro+0};
		251	});
		252	$EXT_CORO{$coro+0} = $coro;
		253
		254	$coro
		255	}
		256
		257	sub write_runtime {
		258	my $runtime = cf::localdir . "/runtime";
		259
		260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		261	or return;
		262
		263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		265	and return;
		266
		267	aio_fsync $fh
		268	and return;
		269
		270	close $fh
		271	or return;
		272
		273	aio_rename "$runtime~", $runtime
		274	and return;
		275
		276	1
		277	}
		278
131	=back	279	=back
132		280
133	=cut	281	=cut
134		282
135	#############################################################################	283	#############################################################################
136		284
137	=head2 EVENTS AND OBJECT ATTACHMENTS	285	package cf::path;
		286
		287	sub new {
		288	my ($class, $path, $base) = @_;
		289
		290	$path = $path->as_string if ref $path;
		291
		292	my $self = bless { }, $class;
		293
		294	# {... are special paths that are not touched
		295	# ?xxx/... are special absolute paths
		296	# ?random/... random maps
		297	# /! non-realised random map exit
		298	# /... normal maps
		299	# ~/... per-player maps without a specific player (DO NOT USE)
		300	# ~user/... per-player map of a specific user
		301
		302	if ($path =~ /^{/) {
		303	# fine as it is
		304	} elsif ($path =~ s{^\?random/}{}) {
		305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		306	$self->{random} = cf::from_json $data;
		307	} else {
		308	if ($path =~ s{^~([^/]+)?}{}) {
		309	$self->{user_rel} = 1;
		310
		311	if (defined $1) {
		312	$self->{user} = $1;
		313	} elsif ($base =~ m{^~([^/]+)/}) {
		314	$self->{user} = $1;
		315	} else {
		316	warn "cannot resolve user-relative path without user <$path,$base>\n";
		317	}
		318	} elsif ($path =~ /^\//) {
		319	# already absolute
		320	} else {
		321	$base =~ s{[^/]+/?$}{};
		322	return $class->new ("$base/$path");
		323	}
		324
		325	for ($path) {
		326	redo if s{/\.?/}{/};
		327	redo if s{/[^/]+/\.\./}{/};
		328	}
		329	}
		330
		331	$self->{path} = $path;
		332
		333	$self
		334	}
		335
		336	# the name / primary key / in-game path
		337	sub as_string {
		338	my ($self) = @_;
		339
		340	$self->{user_rel} ? "~$self->{user}$self->{path}"
		341	: $self->{random} ? "?random/$self->{path}"
		342	: $self->{path}
		343	}
		344
		345	# the displayed name, this is a one way mapping
		346	sub visible_name {
		347	my ($self) = @_;
		348
		349	# if (my $rmp = $self->{random}) {
		350	# # todo: be more intelligent about this
		351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		352	# } else {
		353	$self->as_string
		354	# }
		355	}
		356
		357	# escape the /'s in the path
		358	sub _escaped_path {
		359	# ∕ is U+2215
		360	(my $path = $_[0]{path}) =~ s/\//∕/g;
		361	$path
		362	}
		363
		364	# the original (read-only) location
		365	sub load_path {
		366	my ($self) = @_;
		367
		368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		369	}
		370
		371	# the temporary/swap location
		372	sub save_path {
		373	my ($self) = @_;
		374
		375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		378	}
		379
		380	# the unique path, might be eq to save_path
		381	sub uniq_path {
		382	my ($self) = @_;
		383
		384	$self->{user_rel} || $self->{random}
		385	? undef
		386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		387	}
		388
		389	# return random map parameters, or undef
		390	sub random_map_params {
		391	my ($self) = @_;
		392
		393	$self->{random}
		394	}
		395
		396	# this is somewhat ugly, but style maps do need special treatment
		397	sub is_style_map {
		398	$_[0]{path} =~ m{^/styles/}
		399	}
		400
		401	package cf;
		402
		403	#############################################################################
		404
		405	=head2 ATTACHABLE OBJECTS
		406
		407	Many objects in crossfire are so-called attachable objects. That means you can
		408	attach callbacks/event handlers (a collection of which is called an "attachment")
		409	to it. All such attachable objects support the following methods.
		410
		411	In the following description, CLASS can be any of C<global>, C<object>
		412	C<player>, C<client> or C<map> (i.e. the attachable objects in
		413	crossfire+).
138		414
139	=over 4	415	=over 4
140		416
141	=item $object->attach ($attachment, key => $value...)
142
143	=item $object->detach ($attachment)
144
145	Attach/detach a pre-registered attachment to an object.
146
147	=item $player->attach ($attachment, key => $value...)
148
149	=item $player->detach ($attachment)
150
151	Attach/detach a pre-registered attachment to a player.
152
153	=item $map->attach ($attachment, key => $value...)	417	=item $attachable->attach ($attachment, key => $value...)
154		418
155	=item $map->detach ($attachment)	419	=item $attachable->detach ($attachment)
156		420
157	Attach/detach a pre-registered attachment to a map.	421	Attach/detach a pre-registered attachment to a specific object and give it
		422	the specified key/value pairs as arguments.
158		423
159	=item $bool = $object->attached ($name)	424	Example, attach a minesweeper attachment to the given object, making it a
		425	10x10 minesweeper game:
160		426
161	=item $bool = $player->attached ($name)	427	$obj->attach (minesweeper => width => 10, height => 10);
162		428
163	=item $bool = $map->attached ($name)	429	=item $bool = $attachable->attached ($name)
164		430
165	Checks wether the named attachment is currently attached to the object.	431	Checks wether the named attachment is currently attached to the object.
166		432
167	=item cf::attach_global ...	433	=item cf::CLASS->attach ...
168		434
169	Attach handlers for global events.	435	=item cf::CLASS->detach ...
170		436
171	This and all following C<attach_*>-functions expect any number of the	437	Define an anonymous attachment and attach it to all objects of the given
172	following handler/hook descriptions:	438	CLASS. See the next function for an explanation of its arguments.
		439
		440	You can attach to global events by using the C<cf::global> class.
		441
		442	Example, log all player logins:
		443
		444	cf::player->attach (
		445	on_login => sub {
		446	my ($pl) = @_;
		447	...
		448	},
		449	);
		450
		451	Example, attach to the jeweler skill:
		452
		453	cf::object->attach (
		454	type => cf::SKILL,
		455	subtype => cf::SK_JEWELER,
		456	on_use_skill => sub {
		457	my ($sk, $ob, $part, $dir, $msg) = @_;
		458	...
		459	},
		460	);
		461
		462	=item cf::CLASS::attachment $name, ...
		463
		464	Register an attachment by C<$name> through which attachable objects of the
		465	given CLASS can refer to this attachment.
		466
		467	Some classes such as crossfire maps and objects can specify attachments
		468	that are attached at load/instantiate time, thus the need for a name.
		469
		470	These calls expect any number of the following handler/hook descriptions:
173		471
174	=over 4	472	=over 4
175		473
176	=item prio => $number	474	=item prio => $number
177		475
…		…
179	by another C<prio> setting). Lower priority handlers get executed	477	by another C<prio> setting). Lower priority handlers get executed
180	earlier. The default priority is C<0>, and many built-in handlers are	478	earlier. The default priority is C<0>, and many built-in handlers are
181	registered at priority C<-1000>, so lower priorities should not be used	479	registered at priority C<-1000>, so lower priorities should not be used
182	unless you know what you are doing.	480	unless you know what you are doing.
183		481
		482	=item type => $type
		483
		484	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		485	given type of objects only (the additional parameter C<subtype> can be
		486	used to further limit to the given subtype).
		487
184	=item on_I<event> => \&cb	488	=item on_I<event> => \&cb
185		489
186	Call the given code reference whenever the named event happens (event is	490	Call the given code reference whenever the named event happens (event is
187	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	491	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
188	handlers are recognised generally depends on the type of object these	492	handlers are recognised generally depends on the type of object these
…		…
197	package and register them. Only handlers for eevents supported by the	501	package and register them. Only handlers for eevents supported by the
198	object/class are recognised.	502	object/class are recognised.
199		503
200	=back	504	=back
201		505
202	=item cf::attach_to_type $object_type, $subtype, ...	506	Example, define an attachment called "sockpuppet" that calls the given
		507	event handler when a monster attacks:
203		508
204	Attach handlers for a specific object type (e.g. TRANSPORT) and	509	cf::object::attachment sockpuppet =>
205	subtype. If C<$subtype> is zero or undef, matches all objects of the given	510	on_skill_attack => sub {
206	type.	511	my ($self, $victim) = @_;
207		512	...
208	=item cf::attach_to_objects ...
209
210	Attach handlers to all objects. Do not use this except for debugging or
211	very rare events, as handlers are (obviously) called for I<all> objects in
212	the game.
213
214	=item cf::attach_to_players ...
215
216	Attach handlers to all players.
217
218	=item cf::attach_to_maps ...
219
220	Attach handlers to all maps.
221
222	=item cf:register_attachment $name, ...
223
224	Register an attachment by name through which objects can refer to this
225	attachment.
226
227	=item cf:register_player_attachment $name, ...
228
229	Register an attachment by name through which players can refer to this
230	attachment.
231
232	=item cf:register_map_attachment $name, ...
233
234	Register an attachment by name through which maps can refer to this
235	attachment.
236
237	=cut
238
239	# the following variables are defined in .xs and must not be re-created
240	our @CB_GLOBAL = (); # registry for all global events
241	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
242	our @CB_PLAYER = ();
243	our @CB_TYPE = (); # registry for type (cf-object class) based events
244	our @CB_MAP = ();
245
246	my %attachment;
247
248	sub _attach_cb($\%$$$) {
249	my ($registry, $undo, $event, $prio, $cb) = @_;
250
251	use sort 'stable';
252
253	$cb = [$prio, $cb];
254
255	@{$registry->[$event]} = sort
256	{ $a->[0] cmp $b->[0] }
257	@{$registry->[$event] || []}, $cb;
258
259	push @{$undo->{cb}}, [$event, $cb];
260	}
261
262	# attach handles attaching event callbacks
263	# the only thing the caller has to do is pass the correct
264	# registry (== where the callback attaches to).
265	sub _attach(\@$@) {
266	my ($registry, $klass, @arg) = @_;
267
268	my $prio = 0;
269
270	my %undo = (
271	registry => $registry,
272	cb => [],
273	);
274
275	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
276
277	while (@arg) {
278	my $type = shift @arg;
279
280	if ($type eq "prio") {
281	$prio = shift @arg;
282
283	} elsif ($type eq "package") {
284	my $pkg = shift @arg;
285
286	while (my ($name, $id) = each %cb_id) {
287	if (my $cb = $pkg->can ($name)) {
288	_attach_cb $registry, %undo, $id, $prio, $cb;
289	}
290	}	513	}
291
292	} elsif (exists $cb_id{$type}) {
293	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
294
295	} elsif (ref $type) {
296	warn "attaching objects not supported, ignoring.\n";
297
298	} else {
299	shift @arg;
300	warn "attach argument '$type' not supported, ignoring.\n";
301	}
302	}
303
304	\%undo
305	}
306
307	sub _attach_attachment {
308	my ($obj, $name, %arg) = @_;
309
310	return if exists $obj->{_attachment}{$name};
311
312	my $res;
313
314	if (my $attach = $attachment{$name}) {
315	my $registry = $obj->registry;
316
317	for (@$attach) {
318	my ($klass, @attach) = @$_;
319	$res = _attach @$registry, $klass, @attach;
320	}
321
322	$obj->{$name} = \%arg;
323	} else {
324	warn "object uses attachment '$name' that is not available, postponing.\n";
325	}
326
327	$obj->{_attachment}{$name} = undef;
328
329	$res->{attachment} = $name;
330	$res
331	}
332
333	*cf::object::attach =
334	*cf::player::attach =
335	*cf::map::attach = sub {
336	my ($obj, $name, %arg) = @_;
337
338	_attach_attachment $obj, $name, %arg;
339	};
340
341	# all those should be optimised
342	*cf::object::detach =
343	*cf::player::detach =
344	*cf::map::detach = sub {
345	my ($obj, $name) = @_;
346
347	delete $obj->{_attachment}{$name};
348	reattach ($obj);
349	};
350
351	*cf::object::attached =
352	*cf::player::attached =
353	*cf::map::attached = sub {
354	my ($obj, $name) = @_;
355
356	exists $obj->{_attachment}{$name}
357	};
358
359	sub attach_global {
360	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
361	}
362
363	sub attach_to_type {
364	my $type = shift;
365	my $subtype = shift;
366
367	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
368	}
369
370	sub attach_to_objects {
371	_attach @CB_OBJECT, KLASS_OBJECT, @_
372	}
373
374	sub attach_to_players {
375	_attach @CB_PLAYER, KLASS_PLAYER, @_
376	}
377
378	sub attach_to_maps {
379	_attach @CB_MAP, KLASS_MAP, @_
380	}
381
382	sub register_attachment {
383	my $name = shift;
384
385	$attachment{$name} = [[KLASS_OBJECT, @_]];
386	}
387
388	sub register_player_attachment {
389	my $name = shift;
390
391	$attachment{$name} = [[KLASS_PLAYER, @_]];
392	}
393
394	sub register_map_attachment {
395	my $name = shift;
396
397	$attachment{$name} = [[KLASS_MAP, @_]];
398	}
399
400	our $override;
401	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
402
403	sub override {
404	$override = 1;
405	@invoke_results = ();
406	}
407
408	sub do_invoke {
409	my $event = shift;
410	my $callbacks = shift;
411
412	@invoke_results = ();
413
414	local $override;
415
416	for (@$callbacks) {
417	eval { &{$_->[1]} };
418
419	if ($@) {
420	warn "$@";
421	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
422	override;
423	}
424
425	return 1 if $override;
426	}
427
428	0	514	}
429	}
430		515
431	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	516	=item $attachable->valid
432
433	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
434
435	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
436
437	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
438
439	Generate a global/object/player/map-specific event with the given arguments.
440
441	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
442	removed in future versions), and there is no public API to access override
443	results (if you must, access C<@cf::invoke_results> directly).
444
445	=back
446
447	=cut
448
449	#############################################################################
450
451	=head2 METHODS VALID FOR ALL CORE OBJECTS
452
453	=over 4
454
455	=item $object->valid, $player->valid, $map->valid
456		517
457	Just because you have a perl object does not mean that the corresponding	518	Just because you have a perl object does not mean that the corresponding
458	C-level object still exists. If you try to access an object that has no	519	C-level object still exists. If you try to access an object that has no
459	valid C counterpart anymore you get an exception at runtime. This method	520	valid C counterpart anymore you get an exception at runtime. This method
460	can be used to test for existence of the C object part without causing an	521	can be used to test for existence of the C object part without causing an
461	exception.	522	exception.
462		523
		524	=cut
		525
		526	# the following variables are defined in .xs and must not be re-created
		527	our @CB_GLOBAL = (); # registry for all global events
		528	our @CB_ATTACHABLE = (); # registry for all attachables
		529	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		530	our @CB_PLAYER = ();
		531	our @CB_CLIENT = ();
		532	our @CB_TYPE = (); # registry for type (cf-object class) based events
		533	our @CB_MAP = ();
		534
		535	my %attachment;
		536
		537	sub _attach_cb($$$$) {
		538	my ($registry, $event, $prio, $cb) = @_;
		539
		540	use sort 'stable';
		541
		542	$cb = [$prio, $cb];
		543
		544	@{$registry->[$event]} = sort
		545	{ $a->[0] cmp $b->[0] }
		546	@{$registry->[$event] || []}, $cb;
		547	}
		548
		549	# hack
		550	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		551
		552	# attach handles attaching event callbacks
		553	# the only thing the caller has to do is pass the correct
		554	# registry (== where the callback attaches to).
		555	sub _attach {
		556	my ($registry, $klass, @arg) = @_;
		557
		558	my $object_type;
		559	my $prio = 0;
		560	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		561
		562	#TODO: get rid of this hack
		563	if ($attachable_klass{$klass}) {
		564	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		565	}
		566
		567	while (@arg) {
		568	my $type = shift @arg;
		569
		570	if ($type eq "prio") {
		571	$prio = shift @arg;
		572
		573	} elsif ($type eq "type") {
		574	$object_type = shift @arg;
		575	$registry = $CB_TYPE[$object_type] ||= [];
		576
		577	} elsif ($type eq "subtype") {
		578	defined $object_type or Carp::croak "subtype specified without type";
		579	my $object_subtype = shift @arg;
		580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		581
		582	} elsif ($type eq "package") {
		583	my $pkg = shift @arg;
		584
		585	while (my ($name, $id) = each %cb_id) {
		586	if (my $cb = $pkg->can ($name)) {
		587	_attach_cb $registry, $id, $prio, $cb;
		588	}
		589	}
		590
		591	} elsif (exists $cb_id{$type}) {
		592	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		593
		594	} elsif (ref $type) {
		595	warn "attaching objects not supported, ignoring.\n";
		596
		597	} else {
		598	shift @arg;
		599	warn "attach argument '$type' not supported, ignoring.\n";
		600	}
		601	}
		602	}
		603
		604	sub _object_attach {
		605	my ($obj, $name, %arg) = @_;
		606
		607	return if exists $obj->{_attachment}{$name};
		608
		609	if (my $attach = $attachment{$name}) {
		610	my $registry = $obj->registry;
		611
		612	for (@$attach) {
		613	my ($klass, @attach) = @$_;
		614	_attach $registry, $klass, @attach;
		615	}
		616
		617	$obj->{$name} = \%arg;
		618	} else {
		619	warn "object uses attachment '$name' that is not available, postponing.\n";
		620	}
		621
		622	$obj->{_attachment}{$name} = undef;
		623	}
		624
		625	sub cf::attachable::attach {
		626	if (ref $_[0]) {
		627	_object_attach @_;
		628	} else {
		629	_attach shift->_attach_registry, @_;
		630	}
		631	};
		632
		633	# all those should be optimised
		634	sub cf::attachable::detach {
		635	my ($obj, $name) = @_;
		636
		637	if (ref $obj) {
		638	delete $obj->{_attachment}{$name};
		639	reattach ($obj);
		640	} else {
		641	Carp::croak "cannot, currently, detach class attachments";
		642	}
		643	};
		644
		645	sub cf::attachable::attached {
		646	my ($obj, $name) = @_;
		647
		648	exists $obj->{_attachment}{$name}
		649	}
		650
		651	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		652	eval "#line " . __LINE__ . " 'cf.pm'
		653	sub cf::\L$klass\E::_attach_registry {
		654	(\\\@CB_$klass, KLASS_$klass)
		655	}
		656
		657	sub cf::\L$klass\E::attachment {
		658	my \$name = shift;
		659
		660	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		661	}
		662	";
		663	die if $@;
		664	}
		665
		666	our $override;
		667	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		668
		669	sub override {
		670	$override = 1;
		671	@invoke_results = ();
		672	}
		673
		674	sub do_invoke {
		675	my $event = shift;
		676	my $callbacks = shift;
		677
		678	@invoke_results = ();
		679
		680	local $override;
		681
		682	for (@$callbacks) {
		683	eval { &{$_->[1]} };
		684
		685	if ($@) {
		686	warn "$@";
		687	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		688	override;
		689	}
		690
		691	return 1 if $override;
		692	}
		693
		694	0
		695	}
		696
		697	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		698
		699	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		700
		701	Generate an object-specific event with the given arguments.
		702
		703	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		704	removed in future versions), and there is no public API to access override
		705	results (if you must, access C<@cf::invoke_results> directly).
		706
463	=back	707	=back
464		708
465	=cut	709	=cut
466
467	*cf::object::valid =
468	*cf::player::valid =
469	*cf::map::valid = \&cf::_valid;
470		710
471	#############################################################################	711	#############################################################################
472	# object support	712	# object support
473		713
474	sub instantiate {
475	my ($obj, $data) = @_;
476
477	$data = from_json $data;
478
479	for (@$data) {
480	my ($name, $args) = @$_;
481
482	$obj->attach ($name, %{$args || {} });
483	}
484	}
485
486	# basically do the same as instantiate, without calling instantiate
487	sub reattach {	714	sub reattach {
		715	# basically do the same as instantiate, without calling instantiate
488	my ($obj) = @_;	716	my ($obj) = @_;
		717
489	my $registry = $obj->registry;	718	my $registry = $obj->registry;
490		719
491	@$registry = ();	720	@$registry = ();
492		721
493	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	722	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
494		723
495	for my $name (keys %{ $obj->{_attachment} || {} }) {	724	for my $name (keys %{ $obj->{_attachment} || {} }) {
496	if (my $attach = $attachment{$name}) {	725	if (my $attach = $attachment{$name}) {
497	for (@$attach) {	726	for (@$attach) {
498	my ($klass, @attach) = @$_;	727	my ($klass, @attach) = @$_;
499	_attach @$registry, $klass, @attach;	728	_attach $registry, $klass, @attach;
500	}	729	}
501	} else {	730	} else {
502	warn "object uses attachment '$name' that is not available, postponing.\n";	731	warn "object uses attachment '$name' that is not available, postponing.\n";
503	}	732	}
504	}	733	}
505	}	734	}
506		735
507	sub object_freezer_save {	736	cf::attachable->attach (
508	my ($filename, $rdata, $objs) = @_;
509
510	if (length $$rdata) {
511	warn sprintf "saving %s (%d,%d)\n",
512	$filename, length $$rdata, scalar @$objs;
513
514	if (open my $fh, ">:raw", "$filename~") {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, $$rdata;
517	close $fh;
518
519	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
520	chmod SAVE_MODE, $fh;
521	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
522	close $fh;
523	rename "$filename.pst~", "$filename.pst";
524	} else {
525	unlink "$filename.pst";
526	}
527
528	rename "$filename~", $filename;
529	} else {
530	warn "FATAL: $filename~: $!\n";
531	}
532	} else {
533	unlink $filename;
534	unlink "$filename.pst";
535	}
536	}
537
538	sub object_freezer_as_string {
539	my ($rdata, $objs) = @_;
540
541	use Data::Dumper;
542
543	$$rdata . Dumper $objs
544	}
545
546	sub object_thawer_load {
547	my ($filename) = @_;
548
549	local $/;
550
551	my $av;
552
553	#TODO: use sysread etc.
554	if (open my $data, "<:raw:perlio", $filename) {
555	$data = <$data>;
556	if (open my $pst, "<:raw:perlio", "$filename.pst") {
557	$av = eval { (Storable::thaw <$pst>)->{objs} };
558	}
559	return ($data, $av);
560	}
561
562	()
563	}
564
565	attach_to_objects
566	prio => -1000000,	737	prio => -1000000,
		738	on_instantiate => sub {
		739	my ($obj, $data) = @_;
		740
		741	$data = from_json $data;
		742
		743	for (@$data) {
		744	my ($name, $args) = @$_;
		745
		746	$obj->attach ($name, %{$args || {} });
		747	}
		748	},
		749	on_reattach => \&reattach,
567	on_clone => sub {	750	on_clone => sub {
568	my ($src, $dst) = @_;	751	my ($src, $dst) = @_;
569		752
570	@{$dst->registry} = @{$src->registry};	753	@{$dst->registry} = @{$src->registry};
571		754
572	%$dst = %$src;	755	%$dst = %$src;
573		756
574	%{$dst->{_attachment}} = %{$src->{_attachment}}	757	%{$dst->{_attachment}} = %{$src->{_attachment}}
575	if exists $src->{_attachment};	758	if exists $src->{_attachment};
576	},	759	},
577	;	760	);
		761
		762	sub object_freezer_save {
		763	my ($filename, $rdata, $objs) = @_;
		764
		765	sync_job {
		766	if (length $$rdata) {
		767	warn sprintf "saving %s (%d,%d)\n",
		768	$filename, length $$rdata, scalar @$objs;
		769
		770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		771	chmod SAVE_MODE, $fh;
		772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		773	aio_fsync $fh;
		774	close $fh;
		775
		776	if (@$objs) {
		777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		778	chmod SAVE_MODE, $fh;
		779	my $data = Storable::nfreeze { version => 1, objs => $objs };
		780	aio_write $fh, 0, (length $data), $data, 0;
		781	aio_fsync $fh;
		782	close $fh;
		783	aio_rename "$filename.pst~", "$filename.pst";
		784	}
		785	} else {
		786	aio_unlink "$filename.pst";
		787	}
		788
		789	aio_rename "$filename~", $filename;
		790	} else {
		791	warn "FATAL: $filename~: $!\n";
		792	}
		793	} else {
		794	aio_unlink $filename;
		795	aio_unlink "$filename.pst";
		796	}
		797	}
		798	}
		799
		800	sub object_freezer_as_string {
		801	my ($rdata, $objs) = @_;
		802
		803	use Data::Dumper;
		804
		805	$$rdata . Dumper $objs
		806	}
		807
		808	sub object_thawer_load {
		809	my ($filename) = @_;
		810
		811	my ($data, $av);
		812
		813	(aio_load $filename, $data) >= 0
		814	or return;
		815
		816	unless (aio_stat "$filename.pst") {
		817	(aio_load "$filename.pst", $av) >= 0
		818	or return;
		819	$av = eval { (Storable::thaw $av)->{objs} };
		820	}
		821
		822	return ($data, $av);
		823	}
578		824
579	#############################################################################	825	#############################################################################
580	# command handling &c	826	# command handling &c
581		827
582	=item cf::register_command $name => \&callback($ob,$args);	828	=item cf::register_command $name => \&callback($ob,$args);
…		…
611	#warn "registering extcmd '$name' to '$caller'";	857	#warn "registering extcmd '$name' to '$caller'";
612		858
613	$EXTCMD{$name} = [$cb, $caller];	859	$EXTCMD{$name} = [$cb, $caller];
614	}	860	}
615		861
616	attach_to_players	862	cf::player->attach (
617	on_command => sub {	863	on_command => sub {
618	my ($pl, $name, $params) = @_;	864	my ($pl, $name, $params) = @_;
619		865
620	my $cb = $COMMAND{$name}	866	my $cb = $COMMAND{$name}
621	or return;	867	or return;
…		…
641	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
642	}	888	}
643		889
644	cf::override;	890	cf::override;
645	},	891	},
646	;	892	);
647		893
648	sub register {	894	sub register {
649	my ($base, $pkg) = @_;	895	my ($base, $pkg) = @_;
650		896
651	#TODO	897	#TODO
…		…
741	defined $path or return;	987	defined $path or return;
742		988
743	unlink "$path.pst";	989	unlink "$path.pst";
744	};	990	};
745		991
746	attach_to_maps prio => -10000, package => cf::mapsupport::;	992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
747		993
748	#############################################################################	994	#############################################################################
749	# load/save perl data associated with player->ob objects	995	# load/save perl data associated with player->ob objects
750		996
751	sub all_objects(@) {	997	sub all_objects(@) {
752	@_, map all_objects ($_->inv), @_	998	@_, map all_objects ($_->inv), @_
753	}	999	}
754		1000
755	# TODO: compatibility cruft, remove when no longer needed	1001	# TODO: compatibility cruft, remove when no longer needed
756	attach_to_players	1002	cf::player->attach (
757	on_load => sub {	1003	on_load => sub {
758	my ($pl, $path) = @_;	1004	my ($pl, $path) = @_;
759		1005
760	for my $o (all_objects $pl->ob) {	1006	for my $o (all_objects $pl->ob) {
761	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
763		1009
764	%$o = %{ Storable::thaw pack "H*", $value };	1010	%$o = %{ Storable::thaw pack "H*", $value };
765	}	1011	}
766	}	1012	}
767	},	1013	},
768	;	1014	);
769		1015
770	#############################################################################	1016	#############################################################################
771		1017
772	=head2 CORE EXTENSIONS	1018	=head2 CORE EXTENSIONS
773		1019
774	Functions and methods that extend core crossfire objects.	1020	Functions and methods that extend core crossfire objects.
		1021
		1022	=head3 cf::player
775		1023
776	=over 4	1024	=over 4
777		1025
778	=item cf::player::exists $login	1026	=item cf::player::exists $login
779		1027
…		…
784	sub cf::player::exists($) {	1032	sub cf::player::exists($) {
785	cf::player::find $_[0]	1033	cf::player::find $_[0]
786	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1034	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
787	}	1035	}
788		1036
		1037	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1038
		1039	Sends an ext reply to the player.
		1040
		1041	=cut
		1042
		1043	sub cf::player::ext_reply($$$%) {
		1044	my ($self, $id, %msg) = @_;
		1045
		1046	$msg{msgid} = $id;
		1047
		1048	$self->send ("ext " . to_json \%msg);
		1049	}
		1050
		1051	=back
		1052
		1053
		1054	=head3 cf::map
		1055
		1056	=over 4
		1057
		1058	=cut
		1059
		1060	package cf::map;
		1061
		1062	use Fcntl;
		1063	use Coro::AIO;
		1064
		1065	our $MAX_RESET = 7200;
		1066	our $DEFAULT_RESET = 3600;
		1067
		1068	sub generate_random_map {
		1069	my ($path, $rmp) = @_;
		1070
		1071	# mit "rum" bekleckern, nicht
		1072	cf::map::_create_random_map
		1073	$path,
		1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1077	$rmp->{exit_on_final_map},
		1078	$rmp->{xsize}, $rmp->{ysize},
		1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1082	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1084	(cf::region::find $rmp->{region})
		1085	}
		1086
		1087	# and all this just because we cannot iterate over
		1088	# all maps in C++...
		1089	sub change_all_map_light {
		1090	my ($change) = @_;
		1091
		1092	$_->change_map_light ($change) for values %cf::MAP;
		1093	}
		1094
		1095	sub try_load_header($) {
		1096	my ($path) = @_;
		1097
		1098	utf8::encode $path;
		1099	aio_open $path, O_RDONLY, 0
		1100	or return;
		1101
		1102	my $map = cf::map::new
		1103	or return;
		1104
		1105	$map->load_header ($path)
		1106	or return;
		1107
		1108	$map->{load_path} = $path;
		1109
		1110	$map
		1111	}
		1112
		1113	sub find_map {
		1114	my ($path, $origin) = @_;
		1115
		1116	#warn "find_map<$path,$origin>\n";#d#
		1117
		1118	$path = new cf::path $path, $origin && $origin->path;
		1119	my $key = $path->as_string;
		1120
		1121	$cf::MAP{$key} || do {
		1122	# do it the slow way
		1123	my $map = try_load_header $path->save_path;
		1124
		1125	if ($map) {
		1126	# safety
		1127	$map->{instantiate_time} = $cf::RUNTIME
		1128	if $map->{instantiate_time} > $cf::RUNTIME;
		1129	} else {
		1130	if (my $rmp = $path->random_map_params) {
		1131	$map = generate_random_map $key, $rmp;
		1132	} else {
		1133	$map = try_load_header $path->load_path;
		1134	}
		1135
		1136	$map or return;
		1137
		1138	$map->{load_original} = 1;
		1139	$map->{instantiate_time} = $cf::RUNTIME;
		1140	$map->instantiate;
		1141
		1142	# per-player maps become, after loading, normal maps
		1143	$map->per_player (0) if $path->{user_rel};
		1144	}
		1145
		1146	$map->path ($key);
		1147	$map->{path} = $path;
		1148	$map->last_access ($cf::RUNTIME);
		1149
		1150	if ($map->should_reset) {
		1151	$map->reset;
		1152	$map = find_map $path;
		1153	}
		1154
		1155	$cf::MAP{$key} = $map
		1156	}
		1157	}
		1158
		1159	sub load {
		1160	my ($self) = @_;
		1161
		1162	return if $self->in_memory != cf::MAP_SWAPPED;
		1163
		1164	$self->in_memory (cf::MAP_LOADING);
		1165
		1166	my $path = $self->{path};
		1167
		1168	$self->alloc;
		1169	$self->load_objects ($self->{load_path}, 1)
		1170	or return;
		1171
		1172	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1173	if delete $self->{load_original};
		1174
		1175	if (my $uniq = $path->uniq_path) {
		1176	utf8::encode $uniq;
		1177	if (aio_open $uniq, O_RDONLY, 0) {
		1178	$self->clear_unique_items;
		1179	$self->load_objects ($uniq, 0);
		1180	}
		1181	}
		1182
		1183	# now do the right thing for maps
		1184	$self->link_multipart_objects;
		1185
		1186	if ($self->{path}->is_style_map) {
		1187	$self->{deny_save} = 1;
		1188	$self->{deny_reset} = 1;
		1189	} else {
		1190	$self->fix_auto_apply;
		1191	$self->decay_objects;
		1192	$self->update_buttons;
		1193	$self->set_darkness_map;
		1194	$self->difficulty ($self->estimate_difficulty)
		1195	unless $self->difficulty;
		1196	$self->activate;
		1197	}
		1198
		1199	$self->in_memory (cf::MAP_IN_MEMORY);
		1200	}
		1201
		1202	sub load_map_sync {
		1203	my ($path, $origin) = @_;
		1204
		1205	#warn "load_map_sync<$path, $origin>\n";#d#
		1206
		1207	cf::sync_job {
		1208	my $map = cf::map::find_map $path, $origin
		1209	or return;
		1210	$map->load;
		1211	$map
		1212	}
		1213	}
		1214
		1215	sub save {
		1216	my ($self) = @_;
		1217
		1218	my $save = $self->{path}->save_path; utf8::encode $save;
		1219	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1220
		1221	$self->{last_save} = $cf::RUNTIME;
		1222
		1223	return unless $self->dirty;
		1224
		1225	$self->{load_path} = $save;
		1226
		1227	return if $self->{deny_save};
		1228
		1229	if ($uniq) {
		1230	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1231	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1232	} else {
		1233	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1234	}
		1235	}
		1236
		1237	sub swap_out {
		1238	my ($self) = @_;
		1239
		1240	return if $self->players;
		1241	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1242	return if $self->{deny_save};
		1243
		1244	$self->save;
		1245	$self->clear;
		1246	$self->in_memory (cf::MAP_SWAPPED);
		1247	}
		1248
		1249	sub reset_at {
		1250	my ($self) = @_;
		1251
		1252	# TODO: safety, remove and allow resettable per-player maps
		1253	return 1e99 if $self->{path}{user_rel};
		1254	return 1e99 if $self->{deny_reset};
		1255
		1256	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1257	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1258
		1259	$time + $to
		1260	}
		1261
		1262	sub should_reset {
		1263	my ($self) = @_;
		1264
		1265	$self->reset_at <= $cf::RUNTIME
		1266	}
		1267
		1268	sub unlink_save {
		1269	my ($self) = @_;
		1270
		1271	utf8::encode (my $save = $self->{path}->save_path);
		1272	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1273	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1274	}
		1275
		1276	sub rename {
		1277	my ($self, $new_path) = @_;
		1278
		1279	$self->unlink_save;
		1280
		1281	delete $cf::MAP{$self->path};
		1282	$self->{path} = new cf::path $new_path;
		1283	$self->path ($self->{path}->as_string);
		1284	$cf::MAP{$self->path} = $self;
		1285
		1286	$self->save;
		1287	}
		1288
		1289	sub reset {
		1290	my ($self) = @_;
		1291
		1292	return if $self->players;
		1293	return if $self->{path}{user_rel};#d#
		1294
		1295	warn "resetting map ", $self->path;#d#
		1296
		1297	delete $cf::MAP{$self->path};
		1298
		1299	$_->clear_links_to ($self) for values %cf::MAP;
		1300
		1301	$self->unlink_save;
		1302	$self->destroy;
		1303	}
		1304
		1305	my $nuke_counter = "aaaa";
		1306
		1307	sub nuke {
		1308	my ($self) = @_;
		1309
		1310	$self->{deny_save} = 1;
		1311	$self->reset_timeout (1);
		1312	$self->rename ("{nuke}/" . ($nuke_counter++));
		1313	$self->reset; # polite request, might not happen
		1314	}
		1315
		1316	sub customise_for {
		1317	my ($map, $ob) = @_;
		1318
		1319	if ($map->per_player) {
		1320	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1321	}
		1322
		1323	$map
		1324	}
		1325
		1326	sub emergency_save {
		1327	local $cf::FREEZE = 1;
		1328
		1329	warn "enter emergency map save\n";
		1330
		1331	cf::sync_job {
		1332	warn "begin emergency map save\n";
		1333	$_->save for values %cf::MAP;
		1334	};
		1335
		1336	warn "end emergency map save\n";
		1337	}
		1338
		1339	package cf;
		1340
		1341	=back
		1342
		1343
		1344	=head3 cf::object::player
		1345
		1346	=over 4
		1347
789	=item $player_object->reply ($npc, $msg[, $flags])	1348	=item $player_object->reply ($npc, $msg[, $flags])
790		1349
791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1350	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
792	can be C<undef>. Does the right thing when the player is currently in a	1351	can be C<undef>. Does the right thing when the player is currently in a
793	dialogue with the given NPC character.	1352	dialogue with the given NPC character.
794		1353
795	=cut	1354	=cut
796		1355
797	# rough implementation of a future "reply" method that works	1356	# rough implementation of a future "reply" method that works
798	# with dialog boxes.	1357	# with dialog boxes.
		1358	#TODO: the first argument must go, split into a $npc->reply_to ( method
799	sub cf::object::player::reply($$$;$) {	1359	sub cf::object::player::reply($$$;$) {
800	my ($self, $npc, $msg, $flags) = @_;	1360	my ($self, $npc, $msg, $flags) = @_;
801		1361
802	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1362	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
803		1363
…		…
807	$msg = $npc->name . " says: $msg" if $npc;	1367	$msg = $npc->name . " says: $msg" if $npc;
808	$self->message ($msg, $flags);	1368	$self->message ($msg, $flags);
809	}	1369	}
810	}	1370	}
811		1371
812	=item $player->ext_reply ($msgid, $msgtype, %msg)
813
814	Sends an ext reply to the player.
815
816	=cut
817
818	sub cf::player::ext_reply($$$%) {
819	my ($self, $id, %msg) = @_;
820
821	$msg{msgid} = $id;
822
823	$self->send ("ext " . to_json \%msg);
824	}
825
826	=item $player_object->may ("access")	1372	=item $player_object->may ("access")
827		1373
828	Returns wether the given player is authorized to access resource "access"	1374	Returns wether the given player is authorized to access resource "access"
829	(e.g. "command_wizcast").	1375	(e.g. "command_wizcast").
830		1376
…		…
837	(ref $cf::CFG{"may_$access"}	1383	(ref $cf::CFG{"may_$access"}
838	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1384	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
839	: $cf::CFG{"may_$access"})	1385	: $cf::CFG{"may_$access"})
840	}	1386	}
841		1387
842	=cut	1388	sub cf::object::player::enter_link {
		1389	my ($self) = @_;
843		1390
844	#############################################################################	1391	return if $self->map == $LINK_MAP;
		1392
		1393	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1394	if $self->map;
		1395
		1396	$self->enter_map ($LINK_MAP, 20, 20);
		1397	$self->deactivate_recursive;
		1398	}
		1399
		1400	sub cf::object::player::leave_link {
		1401	my ($self, $map, $x, $y) = @_;
		1402
		1403	my $link_pos = delete $self->{_link_pos};
		1404
		1405	unless ($map) {
		1406	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1407
		1408	# restore original map position
		1409	($map, $x, $y) = @{ $link_pos || [] };
		1410	$map = cf::map::find_map $map;
		1411
		1412	unless ($map) {
		1413	($map, $x, $y) = @$EMERGENCY_POSITION;
		1414	$map = cf::map::find_map $map
		1415	or die "FATAL: cannot load emergency map\n";
		1416	}
		1417	}
		1418
		1419	($x, $y) = (-1, -1)
		1420	unless (defined $x) && (defined $y);
		1421
		1422	# use -1 or undef as default coordinates, not 0, 0
		1423	($x, $y) = ($map->enter_x, $map->enter_y)
		1424	if $x <=0 && $y <= 0;
		1425
		1426	$map->load;
		1427
		1428	$self->activate_recursive;
		1429	$self->enter_map ($map, $x, $y);
		1430	}
		1431
		1432	=item $player_object->goto_map ($map, $x, $y)
		1433
		1434	=cut
		1435
		1436	sub cf::object::player::goto_map {
		1437	my ($self, $path, $x, $y) = @_;
		1438
		1439	$self->enter_link;
		1440
		1441	(Coro::async {
		1442	$path = new cf::path $path;
		1443
		1444	my $map = cf::map::find_map $path->as_string;
		1445	$map = $map->customise_for ($self) if $map;
		1446
		1447	warn "entering ", $map->path, " at ($x, $y)\n"
		1448	if $map;
		1449
		1450	$self->leave_link ($map, $x, $y);
		1451	})->prio (1);
		1452	}
		1453
		1454	=item $player_object->enter_exit ($exit_object)
		1455
		1456	=cut
		1457
		1458	sub parse_random_map_params {
		1459	my ($spec) = @_;
		1460
		1461	my $rmp = { # defaults
		1462	xsize => 10,
		1463	ysize => 10,
		1464	};
		1465
		1466	for (split /\n/, $spec) {
		1467	my ($k, $v) = split /\s+/, $_, 2;
		1468
		1469	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1470	}
		1471
		1472	$rmp
		1473	}
		1474
		1475	sub prepare_random_map {
		1476	my ($exit) = @_;
		1477
		1478	# all this does is basically replace the /! path by
		1479	# a new random map path (?random/...) with a seed
		1480	# that depends on the exit object
		1481
		1482	my $rmp = parse_random_map_params $exit->msg;
		1483
		1484	if ($exit->map) {
		1485	$rmp->{region} = $exit->map->region_name;
		1486	$rmp->{origin_map} = $exit->map->path;
		1487	$rmp->{origin_x} = $exit->x;
		1488	$rmp->{origin_y} = $exit->y;
		1489	}
		1490
		1491	$rmp->{random_seed} ||= $exit->random_seed;
		1492
		1493	my $data = cf::to_json $rmp;
		1494	my $md5 = Digest::MD5::md5_hex $data;
		1495
		1496	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1497	aio_write $fh, 0, (length $data), $data, 0;
		1498
		1499	$exit->slaying ("?random/$md5");
		1500	$exit->msg (undef);
		1501	}
		1502	}
		1503
		1504	sub cf::object::player::enter_exit {
		1505	my ($self, $exit) = @_;
		1506
		1507	return unless $self->type == cf::PLAYER;
		1508
		1509	$self->enter_link;
		1510
		1511	(Coro::async {
		1512	unless (eval {
		1513
		1514	prepare_random_map $exit
		1515	if $exit->slaying eq "/!";
		1516
		1517	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1518	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1519
		1520	1;
		1521	}) {
		1522	$self->message ("Something went wrong deep within the crossfire server. "
		1523	. "I'll try to bring you back to the map you were before. "
		1524	. "Please report this to the dungeon master",
		1525	cf::NDI_UNIQUE | cf::NDI_RED);
		1526
		1527	warn "ERROR in enter_exit: $@";
		1528	$self->leave_link;
		1529	}
		1530	})->prio (1);
		1531	}
		1532
		1533	=head3 cf::client
		1534
		1535	=over 4
		1536
		1537	=item $client->send_drawinfo ($text, $flags)
		1538
		1539	Sends a drawinfo packet to the client. Circumvents output buffering so
		1540	should not be used under normal circumstances.
		1541
		1542	=cut
		1543
		1544	sub cf::client::send_drawinfo {
		1545	my ($self, $text, $flags) = @_;
		1546
		1547	utf8::encode $text;
		1548	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1549	}
		1550
		1551
		1552	=item $success = $client->query ($flags, "text", \&cb)
		1553
		1554	Queues a query to the client, calling the given callback with
		1555	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1556	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1557
		1558	Queries can fail, so check the return code. Or don't, as queries will become
		1559	reliable at some point in the future.
		1560
		1561	=cut
		1562
		1563	sub cf::client::query {
		1564	my ($self, $flags, $text, $cb) = @_;
		1565
		1566	return unless $self->state == ST_PLAYING
		1567	|| $self->state == ST_SETUP
		1568	|| $self->state == ST_CUSTOM;
		1569
		1570	$self->state (ST_CUSTOM);
		1571
		1572	utf8::encode $text;
		1573	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1574
		1575	$self->send_packet ($self->{query_queue}[0][0])
		1576	if @{ $self->{query_queue} } == 1;
		1577	}
		1578
		1579	cf::client->attach (
		1580	on_reply => sub {
		1581	my ($ns, $msg) = @_;
		1582
		1583	# this weird shuffling is so that direct followup queries
		1584	# get handled first
		1585	my $queue = delete $ns->{query_queue};
		1586
		1587	(shift @$queue)->[1]->($msg);
		1588
		1589	push @{ $ns->{query_queue} }, @$queue;
		1590
		1591	if (@{ $ns->{query_queue} } == @$queue) {
		1592	if (@$queue) {
		1593	$ns->send_packet ($ns->{query_queue}[0][0]);
		1594	} else {
		1595	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1596	}
		1597	}
		1598	},
		1599	);
		1600
		1601	=item $client->coro (\&cb)
		1602
		1603	Create a new coroutine, running the specified callback. The coroutine will
		1604	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1605	or loss of connection).
		1606
		1607	=cut
		1608
		1609	sub cf::client::coro {
		1610	my ($self, $cb) = @_;
		1611
		1612	my $coro; $coro = async {
		1613	eval {
		1614	$cb->();
		1615	};
		1616	warn $@ if $@;
		1617	};
		1618
		1619	$coro->on_destroy (sub {
		1620	delete $self->{_coro}{$coro+0};
		1621	});
		1622
		1623	$self->{_coro}{$coro+0} = $coro;
		1624
		1625	$coro
		1626	}
		1627
		1628	cf::client->attach (
		1629	on_destroy => sub {
		1630	my ($ns) = @_;
		1631
		1632	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1633	},
		1634	);
		1635
		1636	=back
		1637
845		1638
846	=head2 SAFE SCRIPTING	1639	=head2 SAFE SCRIPTING
847		1640
848	Functions that provide a safe environment to compile and execute	1641	Functions that provide a safe environment to compile and execute
849	snippets of perl code without them endangering the safety of the server	1642	snippets of perl code without them endangering the safety of the server
…		…
864		1657
865	=pod	1658	=pod
866		1659
867	The following fucntions and emthods are available within a safe environment:	1660	The following fucntions and emthods are available within a safe environment:
868		1661
869	cf::object contr pay_amount pay_player	1662	cf::object contr pay_amount pay_player map
870	cf::object::player player	1663	cf::object::player player
871	cf::player peaceful	1664	cf::player peaceful
		1665	cf::map trigger
872		1666
873	=cut	1667	=cut
874		1668
875	for (	1669	for (
876	["cf::object" => qw(contr pay_amount pay_player)],	1670	["cf::object" => qw(contr pay_amount pay_player map)],
877	["cf::object::player" => qw(player)],	1671	["cf::object::player" => qw(player)],
878	["cf::player" => qw(peaceful)],	1672	["cf::player" => qw(peaceful)],
		1673	["cf::map" => qw(trigger)],
879	) {	1674	) {
880	no strict 'refs';	1675	no strict 'refs';
881	my ($pkg, @funs) = @$_;	1676	my ($pkg, @funs) = @$_;
882	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1677	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
883	for @funs;	1678	for @funs;
…		…
1047	$DB->{$_[0]} = $_[1];	1842	$DB->{$_[0]} = $_[1];
1048	}	1843	}
1049	db_dirty;	1844	db_dirty;
1050	}	1845	}
1051		1846
1052	attach_global	1847	cf::global->attach (
1053	prio => 10000,	1848	prio => 10000,
1054	on_cleanup => sub {	1849	on_cleanup => sub {
1055	db_sync;	1850	db_sync;
1056	},	1851	},
1057	;	1852	);
1058	}	1853	}
1059		1854
1060	#############################################################################	1855	#############################################################################
1061	# the server's main()	1856	# the server's main()
1062		1857
…		…
1067	local $/;	1862	local $/;
1068	*CFG = YAML::Syck::Load <$fh>;	1863	*CFG = YAML::Syck::Load <$fh>;
1069	}	1864	}
1070		1865
1071	sub main {	1866	sub main {
		1867	# we must not ever block the main coroutine
		1868	local $Coro::idle = sub {
		1869	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1870	(Coro::unblock_sub {
		1871	Event::one_event;
		1872	})->();
		1873	};
		1874
1072	cfg_load;	1875	cfg_load;
1073	db_load;	1876	db_load;
1074	load_extensions;	1877	load_extensions;
1075	Event::loop;	1878	Event::loop;
1076	}	1879	}
1077		1880
1078	#############################################################################	1881	#############################################################################
1079	# initialisation	1882	# initialisation
1080		1883
1081	sub _perl_reload(&) {	1884	sub reload() {
1082	my ($msg) = @_;	1885	# can/must only be called in main
		1886	if ($Coro::current != $Coro::main) {
		1887	warn "can only reload from main coroutine\n";
		1888	return;
		1889	}
1083		1890
1084	$msg->("reloading...");	1891	warn "reloading...";
		1892
		1893	local $FREEZE = 1;
		1894	cf::emergency_save;
1085		1895
1086	eval {	1896	eval {
		1897	# if anything goes wrong in here, we should simply crash as we already saved
		1898
1087	# cancel all watchers	1899	# cancel all watchers
1088	for (Event::all_watchers) {	1900	for (Event::all_watchers) {
1089	$_->cancel if $_->data & WF_AUTOCANCEL;	1901	$_->cancel if $_->data & WF_AUTOCANCEL;
1090	}	1902	}
1091		1903
		1904	# cancel all extension coros
		1905	$_->cancel for values %EXT_CORO;
		1906	%EXT_CORO = ();
		1907
1092	# unload all extensions	1908	# unload all extensions
1093	for (@exts) {	1909	for (@exts) {
1094	$msg->("unloading <$_>");	1910	warn "unloading <$_>";
1095	unload_extension $_;	1911	unload_extension $_;
1096	}	1912	}
1097		1913
1098	# unload all modules loaded from $LIBDIR	1914	# unload all modules loaded from $LIBDIR
1099	while (my ($k, $v) = each %INC) {	1915	while (my ($k, $v) = each %INC) {
1100	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1916	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1101		1917
1102	$msg->("removing <$k>");	1918	warn "removing <$k>";
1103	delete $INC{$k};	1919	delete $INC{$k};
1104		1920
1105	$k =~ s/\.pm$//;	1921	$k =~ s/\.pm$//;
1106	$k =~ s/\//::/g;	1922	$k =~ s/\//::/g;
1107		1923
…		…
1112	Symbol::delete_package $k;	1928	Symbol::delete_package $k;
1113	}	1929	}
1114		1930
1115	# sync database to disk	1931	# sync database to disk
1116	cf::db_sync;	1932	cf::db_sync;
		1933	IO::AIO::flush;
1117		1934
1118	# get rid of safe::, as good as possible	1935	# get rid of safe::, as good as possible
1119	Symbol::delete_package "safe::$_"	1936	Symbol::delete_package "safe::$_"
1120	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1937	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1121		1938
1122	# remove register_script_function callbacks	1939	# remove register_script_function callbacks
1123	# TODO	1940	# TODO
1124		1941
1125	# unload cf.pm "a bit"	1942	# unload cf.pm "a bit"
…		…
1128	# don't, removes xs symbols, too,	1945	# don't, removes xs symbols, too,
1129	# and global variables created in xs	1946	# and global variables created in xs
1130	#Symbol::delete_package __PACKAGE__;	1947	#Symbol::delete_package __PACKAGE__;
1131		1948
1132	# reload cf.pm	1949	# reload cf.pm
1133	$msg->("reloading cf.pm");	1950	warn "reloading cf.pm";
1134	require cf;	1951	require cf;
		1952	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1135		1953
1136	# load config and database again	1954	# load config and database again
1137	cf::cfg_load;	1955	cf::cfg_load;
1138	cf::db_load;	1956	cf::db_load;
1139		1957
1140	# load extensions	1958	# load extensions
1141	$msg->("load extensions");	1959	warn "load extensions";
1142	cf::load_extensions;	1960	cf::load_extensions;
1143		1961
1144	# reattach attachments to objects	1962	# reattach attachments to objects
1145	$msg->("reattach");	1963	warn "reattach";
1146	_global_reattach;	1964	_global_reattach;
1147	};	1965	};
1148	$msg->($@) if $@;
1149		1966
1150	$msg->("reloaded");	1967	if ($@) {
		1968	warn $@;
		1969	warn "error while reloading, exiting.";
		1970	exit 1;
		1971	}
		1972
		1973	warn "reloaded successfully";
1151	};	1974	};
1152		1975
1153	sub perl_reload() {	1976	#############################################################################
1154	_perl_reload {	1977
1155	warn $_[0];	1978	unless ($LINK_MAP) {
1156	print "$_[0]\n";	1979	$LINK_MAP = cf::map::new;
1157	};	1980
		1981	$LINK_MAP->width (41);
		1982	$LINK_MAP->height (41);
		1983	$LINK_MAP->alloc;
		1984	$LINK_MAP->path ("{link}");
		1985	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		1986	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		1987
		1988	# dirty hack because... archetypes are not yet loaded
		1989	Event->timer (
		1990	after => 2,
		1991	cb => sub {
		1992	$_[0]->w->cancel;
		1993
		1994	# provide some exits "home"
		1995	my $exit = cf::object::new "exit";
		1996
		1997	$exit->slaying ($EMERGENCY_POSITION->[0]);
		1998	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		1999	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2000
		2001	$LINK_MAP->insert ($exit->clone, 19, 19);
		2002	$LINK_MAP->insert ($exit->clone, 19, 20);
		2003	$LINK_MAP->insert ($exit->clone, 19, 21);
		2004	$LINK_MAP->insert ($exit->clone, 20, 19);
		2005	$LINK_MAP->insert ($exit->clone, 20, 21);
		2006	$LINK_MAP->insert ($exit->clone, 21, 19);
		2007	$LINK_MAP->insert ($exit->clone, 21, 20);
		2008	$LINK_MAP->insert ($exit->clone, 21, 21);
		2009
		2010	$exit->destroy;
		2011	});
		2012
		2013	$LINK_MAP->{deny_save} = 1;
		2014	$LINK_MAP->{deny_reset} = 1;
		2015
		2016	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1158	}	2017	}
1159		2018
1160	register "<global>", __PACKAGE__;	2019	register "<global>", __PACKAGE__;
1161		2020
1162	register_command "perl-reload" => sub {	2021	register_command "reload" => sub {
1163	my ($who, $arg) = @_;	2022	my ($who, $arg) = @_;
1164		2023
1165	if ($who->flag (FLAG_WIZ)) {	2024	if ($who->flag (FLAG_WIZ)) {
1166	_perl_reload {	2025	$who->message ("start of reload.");
1167	warn $_[0];	2026	reload;
1168	$who->message ($_[0]);	2027	$who->message ("end of reload.");
1169	};
1170	}	2028	}
1171	};	2029	};
1172		2030
1173	unshift @INC, $LIBDIR;	2031	unshift @INC, $LIBDIR;
1174		2032
1175	$TICK_WATCHER = Event->timer (	2033	$TICK_WATCHER = Event->timer (
		2034	reentrant => 0,
1176	prio => 1,	2035	prio => 0,
1177	async => 1,
1178	at => $NEXT_TICK || 1,	2036	at => $NEXT_TICK || $TICK,
1179	data => WF_AUTOCANCEL,	2037	data => WF_AUTOCANCEL,
1180	cb => sub {	2038	cb => sub {
		2039	unless ($FREEZE) {
1181	cf::server_tick; # one server iteration	2040	cf::server_tick; # one server iteration
		2041	$RUNTIME += $TICK;
		2042	}
1182		2043
1183	my $NOW = Event::time;
1184	$NEXT_TICK += $TICK;	2044	$NEXT_TICK += $TICK;
1185		2045
1186	# if we are delayed by four ticks or more, skip them all	2046	# if we are delayed by four ticks or more, skip them all
1187	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2047	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1188		2048
1189	$TICK_WATCHER->at ($NEXT_TICK);	2049	$TICK_WATCHER->at ($NEXT_TICK);
1190	$TICK_WATCHER->start;	2050	$TICK_WATCHER->start;
1191	},	2051	},
1192	);	2052	);
1193		2053
1194	IO::AIO::max_poll_time $TICK * 0.2;	2054	IO::AIO::max_poll_time $TICK * 0.2;
1195		2055
		2056	Event->io (
1196	Event->io (fd => IO::AIO::poll_fileno,	2057	fd => IO::AIO::poll_fileno,
1197	poll => 'r',	2058	poll => 'r',
1198	prio => 5,	2059	prio => 5,
1199	data => WF_AUTOCANCEL,	2060	data => WF_AUTOCANCEL,
1200	cb => \&IO::AIO::poll_cb);	2061	cb => \&IO::AIO::poll_cb,
		2062	);
		2063
		2064	Event->timer (
		2065	data => WF_AUTOCANCEL,
		2066	after => 0,
		2067	interval => 10,
		2068	cb => sub {
		2069	(Coro::unblock_sub {
		2070	write_runtime
		2071	or warn "ERROR: unable to write runtime file: $!";
		2072	})->();
		2073	},
		2074	);
1201		2075
1202	1	2076	1
1203		2077

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