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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.86 by root, Thu Dec 14 05:09:32 2006 UTC vs.
Revision 1.136 by root, Fri Jan 5 01:06:28 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
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
20		34
21	our %COMMAND = ();	35	our %COMMAND = ();
22	our %COMMAND_TIME = ();	36	our %COMMAND_TIME = ();
23	our %EXTCMD = ();	37	our %EXTCMD = ();
24		38
25	_init_vars;
26
27	our @EVENT;	39	our @EVENT;
28	our $LIBDIR = maps_directory "perl";	40	our $LIBDIR = datadir . "/ext";
29		41
30	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
31	our $TICK_WATCHER;	43	our $TICK_WATCHER;
32	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
33		46
34	our %CFG;	47	our %CFG;
35		48
36	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 $RANDOM_MAPS = cf::localdir . "/random";
		55	our %EXT_CORO;
		56
		57	binmode STDOUT;
		58	binmode STDERR;
		59
		60	# read virtual server time, if available
		61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		62	open my $fh, "<", cf::localdir . "/runtime"
		63	or die "unable to read runtime file: $!";
		64	$RUNTIME = <$fh> + 0.;
		65	}
		66
		67	mkdir cf::localdir;
		68	mkdir cf::localdir . "/" . cf::playerdir;
		69	mkdir cf::localdir . "/" . cf::tmpdir;
		70	mkdir cf::localdir . "/" . cf::uniquedir;
		71	mkdir $RANDOM_MAPS;
		72
		73	# a special map that is always available
		74	our $LINK_MAP;
		75	our $EMERGENCY_POSITION;
37		76
38	#############################################################################	77	#############################################################################
39		78
40	=head2 GLOBAL VARIABLES	79	=head2 GLOBAL VARIABLES
41		80
42	=over 4	81	=over 4
43		82
44	=item $cf::UPTIME	83	=item $cf::UPTIME
45		84
46	The timestamp of the server start (so not actually an uptime).	85	The timestamp of the server start (so not actually an uptime).
		86
		87	=item $cf::RUNTIME
		88
		89	The time this server has run, starts at 0 and is increased by $cf::TICK on
		90	every server tick.
47		91
48	=item $cf::LIBDIR	92	=item $cf::LIBDIR
49		93
50	The perl library directory, where extensions and cf-specific modules can	94	The perl library directory, where extensions and cf-specific modules can
51	be found. It will be added to C<@INC> automatically.	95	be found. It will be added to C<@INC> automatically.
		96
		97	=item $cf::NOW
		98
		99	The time of the last (current) server tick.
52		100
53	=item $cf::TICK	101	=item $cf::TICK
54		102
55	The interval between server ticks, in seconds.	103	The interval between server ticks, in seconds.
56		104
…		…
64	=cut	112	=cut
65		113
66	BEGIN {	114	BEGIN {
67	*CORE::GLOBAL::warn = sub {	115	*CORE::GLOBAL::warn = sub {
68	my $msg = join "", @_;	116	my $msg = join "", @_;
		117	utf8::encode $msg;
		118
69	$msg .= "\n"	119	$msg .= "\n"
70	unless $msg =~ /\n$/;	120	unless $msg =~ /\n$/;
71		121
72	print STDERR "cfperl: $msg";
73	LOG llevError, "cfperl: $msg";	122	LOG llevError, "cfperl: $msg";
74	};	123	};
75	}	124	}
76		125
		126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
77	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
78		132
79	# we bless all objects into (empty) derived classes to force a method lookup	133	# we bless all objects into (empty) derived classes to force a method lookup
80	# within the Safe compartment.	134	# within the Safe compartment.
81	for my $pkg (qw(	135	for my $pkg (qw(
		136	cf::global cf::attachable
82	cf::object cf::object::player	137	cf::object cf::object::player
83	cf::client_socket cf::player	138	cf::client cf::player
84	cf::arch cf::living	139	cf::arch cf::living
85	cf::map cf::party cf::region	140	cf::map cf::party cf::region
86	)) {	141	)) {
87	no strict 'refs';	142	no strict 'refs';
88	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
…		…
124	sub to_json($) {	179	sub to_json($) {
125	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
126	JSON::Syck::Dump $_[0]	181	JSON::Syck::Dump $_[0]
127	}	182	}
128		183
		184	=item cf::lock_wait $string
		185
		186	Wait until the given lock is available. See cf::lock_acquire.
		187
		188	=item my $lock = cf::lock_acquire $string
		189
		190	Wait until the given lock is available and then acquires it and returns
		191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		192	for example when the coroutine gets canceled), the lock is automatically
		193	returned.
		194
		195	Lock names should begin with a unique identifier (for example, cf::map::find
		196	uses map_find and cf::map::load uses map_load).
		197
		198	=cut
		199
		200	our %LOCK;
		201
		202	sub lock_wait($) {
		203	my ($key) = @_;
		204
		205	# wait for lock, if any
		206	while ($LOCK{$key}) {
		207	push @{ $LOCK{$key} }, $Coro::current;
		208	Coro::schedule;
		209	}
		210	}
		211
		212	sub lock_acquire($) {
		213	my ($key) = @_;
		214
		215	# wait, to be sure we are not locked
		216	lock_wait $key;
		217
		218	$LOCK{$key} = [];
		219
		220	Coro::guard {
		221	# wake up all waiters, to be on the safe side
		222	$_->ready for @{ delete $LOCK{$key} };
		223	}
		224	}
		225
		226	=item cf::async { BLOCK }
		227
		228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
		229	error instead of exiting the server in case of a problem.
		230
		231	=cut
		232
		233	sub async(&) {
		234	my ($cb) = @_;
		235
		236	Coro::async {
		237	eval { $cb->() };
		238	warn $@ if $@;
		239	}
		240	}
		241
		242	sub freeze_mainloop {
		243	return unless $TICK_WATCHER->is_active;
		244
		245	my $guard = Coro::guard { $TICK_WATCHER->start };
		246	$TICK_WATCHER->stop;
		247	$guard
		248	}
		249
		250	=item cf::sync_job { BLOCK }
		251
		252	The design of crossfire+ requires that the main coro ($Coro::main) is
		253	always able to handle events or runnable, as crossfire+ is only partly
		254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		255
		256	If it must be done, put the blocking parts into C<sync_job>. This will run
		257	the given BLOCK in another coroutine while waiting for the result. The
		258	server will be frozen during this time, so the block should either finish
		259	fast or be very important.
		260
		261	=cut
		262
		263	sub sync_job(&) {
		264	my ($job) = @_;
		265
		266	if ($Coro::current == $Coro::main) {
		267	# this is the main coro, too bad, we have to block
		268	# till the operation succeeds, freezing the server :/
		269
		270	# TODO: use suspend/resume instead
		271	# (but this is cancel-safe)
		272	my $freeze_guard = freeze_mainloop;
		273
		274	my $busy = 1;
		275	my @res;
		276
		277	(Coro::async {
		278	@res = eval { $job->() };
		279	warn $@ if $@;
		280	undef $busy;
		281	})->prio (Coro::PRIO_MAX);
		282
		283	while ($busy) {
		284	Coro::cede_notself;
		285	Event::one_event unless Coro::nready;
		286	}
		287
		288	wantarray ? @res : $res[0]
		289	} else {
		290	# we are in another coroutine, how wonderful, everything just works
		291
		292	$job->()
		293	}
		294	}
		295
		296	=item $coro = cf::coro { BLOCK }
		297
		298	Creates and returns a new coro. This coro is automcatially being canceled
		299	when the extension calling this is being unloaded.
		300
		301	=cut
		302
		303	sub coro(&) {
		304	my $cb = shift;
		305
		306	my $coro = &cf::async ($cb);
		307
		308	$coro->on_destroy (sub {
		309	delete $EXT_CORO{$coro+0};
		310	});
		311	$EXT_CORO{$coro+0} = $coro;
		312
		313	$coro
		314	}
		315
		316	sub write_runtime {
		317	my $runtime = cf::localdir . "/runtime";
		318
		319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		320	or return;
		321
		322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		324	and return;
		325
		326	aio_fsync $fh
		327	and return;
		328
		329	close $fh
		330	or return;
		331
		332	aio_rename "$runtime~", $runtime
		333	and return;
		334
		335	1
		336	}
		337
129	=back	338	=back
130		339
131	=cut	340	=cut
132		341
133	#############################################################################	342	#############################################################################
134		343
135	=head2 EVENTS AND OBJECT ATTACHMENTS	344	package cf::path;
		345
		346	sub new {
		347	my ($class, $path, $base) = @_;
		348
		349	$path = $path->as_string if ref $path;
		350
		351	my $self = bless { }, $class;
		352
		353	# {... are special paths that are not touched
		354	# ?xxx/... are special absolute paths
		355	# ?random/... random maps
		356	# /! non-realised random map exit
		357	# /... normal maps
		358	# ~/... per-player maps without a specific player (DO NOT USE)
		359	# ~user/... per-player map of a specific user
		360
		361	if ($path =~ /^{/) {
		362	# fine as it is
		363	} elsif ($path =~ s{^\?random/}{}) {
		364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		365	$self->{random} = cf::from_json $data;
		366	} else {
		367	if ($path =~ s{^~([^/]+)?}{}) {
		368	$self->{user_rel} = 1;
		369
		370	if (defined $1) {
		371	$self->{user} = $1;
		372	} elsif ($base =~ m{^~([^/]+)/}) {
		373	$self->{user} = $1;
		374	} else {
		375	warn "cannot resolve user-relative path without user <$path,$base>\n";
		376	}
		377	} elsif ($path =~ /^\//) {
		378	# already absolute
		379	} else {
		380	$base =~ s{[^/]+/?$}{};
		381	return $class->new ("$base/$path");
		382	}
		383
		384	for ($path) {
		385	redo if s{/\.?/}{/};
		386	redo if s{/[^/]+/\.\./}{/};
		387	}
		388	}
		389
		390	$self->{path} = $path;
		391
		392	$self
		393	}
		394
		395	# the name / primary key / in-game path
		396	sub as_string {
		397	my ($self) = @_;
		398
		399	$self->{user_rel} ? "~$self->{user}$self->{path}"
		400	: $self->{random} ? "?random/$self->{path}"
		401	: $self->{path}
		402	}
		403
		404	# the displayed name, this is a one way mapping
		405	sub visible_name {
		406	my ($self) = @_;
		407
		408	# if (my $rmp = $self->{random}) {
		409	# # todo: be more intelligent about this
		410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		411	# } else {
		412	$self->as_string
		413	# }
		414	}
		415
		416	# escape the /'s in the path
		417	sub _escaped_path {
		418	# ∕ is U+2215
		419	(my $path = $_[0]{path}) =~ s/\//∕/g;
		420	$path
		421	}
		422
		423	# the original (read-only) location
		424	sub load_path {
		425	my ($self) = @_;
		426
		427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		428	}
		429
		430	# the temporary/swap location
		431	sub save_path {
		432	my ($self) = @_;
		433
		434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		437	}
		438
		439	# the unique path, might be eq to save_path
		440	sub uniq_path {
		441	my ($self) = @_;
		442
		443	$self->{user_rel} || $self->{random}
		444	? undef
		445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		446	}
		447
		448	# return random map parameters, or undef
		449	sub random_map_params {
		450	my ($self) = @_;
		451
		452	$self->{random}
		453	}
		454
		455	# this is somewhat ugly, but style maps do need special treatment
		456	sub is_style_map {
		457	$_[0]{path} =~ m{^/styles/}
		458	}
		459
		460	package cf;
		461
		462	#############################################################################
		463
		464	=head2 ATTACHABLE OBJECTS
		465
		466	Many objects in crossfire are so-called attachable objects. That means you can
		467	attach callbacks/event handlers (a collection of which is called an "attachment")
		468	to it. All such attachable objects support the following methods.
		469
		470	In the following description, CLASS can be any of C<global>, C<object>
		471	C<player>, C<client> or C<map> (i.e. the attachable objects in
		472	crossfire+).
136		473
137	=over 4	474	=over 4
138		475
139	=item $object->attach ($attachment, key => $value...)
140
141	=item $object->detach ($attachment)
142
143	Attach/detach a pre-registered attachment to an object.
144
145	=item $player->attach ($attachment, key => $value...)
146
147	=item $player->detach ($attachment)
148
149	Attach/detach a pre-registered attachment to a player.
150
151	=item $map->attach ($attachment, key => $value...)	476	=item $attachable->attach ($attachment, key => $value...)
152		477
153	=item $map->detach ($attachment)	478	=item $attachable->detach ($attachment)
154		479
155	Attach/detach a pre-registered attachment to a map.	480	Attach/detach a pre-registered attachment to a specific object and give it
		481	the specified key/value pairs as arguments.
156		482
157	=item $bool = $object->attached ($name)	483	Example, attach a minesweeper attachment to the given object, making it a
		484	10x10 minesweeper game:
158		485
159	=item $bool = $player->attached ($name)	486	$obj->attach (minesweeper => width => 10, height => 10);
160		487
161	=item $bool = $map->attached ($name)	488	=item $bool = $attachable->attached ($name)
162		489
163	Checks wether the named attachment is currently attached to the object.	490	Checks wether the named attachment is currently attached to the object.
164		491
165	=item cf::attach_global ...	492	=item cf::CLASS->attach ...
166		493
167	Attach handlers for global events.	494	=item cf::CLASS->detach ...
168		495
169	This and all following C<attach_*>-functions expect any number of the	496	Define an anonymous attachment and attach it to all objects of the given
170	following handler/hook descriptions:	497	CLASS. See the next function for an explanation of its arguments.
		498
		499	You can attach to global events by using the C<cf::global> class.
		500
		501	Example, log all player logins:
		502
		503	cf::player->attach (
		504	on_login => sub {
		505	my ($pl) = @_;
		506	...
		507	},
		508	);
		509
		510	Example, attach to the jeweler skill:
		511
		512	cf::object->attach (
		513	type => cf::SKILL,
		514	subtype => cf::SK_JEWELER,
		515	on_use_skill => sub {
		516	my ($sk, $ob, $part, $dir, $msg) = @_;
		517	...
		518	},
		519	);
		520
		521	=item cf::CLASS::attachment $name, ...
		522
		523	Register an attachment by C<$name> through which attachable objects of the
		524	given CLASS can refer to this attachment.
		525
		526	Some classes such as crossfire maps and objects can specify attachments
		527	that are attached at load/instantiate time, thus the need for a name.
		528
		529	These calls expect any number of the following handler/hook descriptions:
171		530
172	=over 4	531	=over 4
173		532
174	=item prio => $number	533	=item prio => $number
175		534
…		…
177	by another C<prio> setting). Lower priority handlers get executed	536	by another C<prio> setting). Lower priority handlers get executed
178	earlier. The default priority is C<0>, and many built-in handlers are	537	earlier. The default priority is C<0>, and many built-in handlers are
179	registered at priority C<-1000>, so lower priorities should not be used	538	registered at priority C<-1000>, so lower priorities should not be used
180	unless you know what you are doing.	539	unless you know what you are doing.
181		540
		541	=item type => $type
		542
		543	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		544	given type of objects only (the additional parameter C<subtype> can be
		545	used to further limit to the given subtype).
		546
182	=item on_I<event> => \&cb	547	=item on_I<event> => \&cb
183		548
184	Call the given code reference whenever the named event happens (event is	549	Call the given code reference whenever the named event happens (event is
185	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	550	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
186	handlers are recognised generally depends on the type of object these	551	handlers are recognised generally depends on the type of object these
…		…
195	package and register them. Only handlers for eevents supported by the	560	package and register them. Only handlers for eevents supported by the
196	object/class are recognised.	561	object/class are recognised.
197		562
198	=back	563	=back
199		564
200	=item cf::attach_to_type $object_type, $subtype, ...	565	Example, define an attachment called "sockpuppet" that calls the given
		566	event handler when a monster attacks:
201		567
202	Attach handlers for a specific object type (e.g. TRANSPORT) and	568	cf::object::attachment sockpuppet =>
203	subtype. If C<$subtype> is zero or undef, matches all objects of the given	569	on_skill_attack => sub {
204	type.	570	my ($self, $victim) = @_;
205		571	...
206	=item cf::attach_to_objects ...
207
208	Attach handlers to all objects. Do not use this except for debugging or
209	very rare events, as handlers are (obviously) called for I<all> objects in
210	the game.
211
212	=item cf::attach_to_players ...
213
214	Attach handlers to all players.
215
216	=item cf::attach_to_maps ...
217
218	Attach handlers to all maps.
219
220	=item cf:register_attachment $name, ...
221
222	Register an attachment by name through which objects can refer to this
223	attachment.
224
225	=item cf:register_player_attachment $name, ...
226
227	Register an attachment by name through which players can refer to this
228	attachment.
229
230	=item cf:register_map_attachment $name, ...
231
232	Register an attachment by name through which maps can refer to this
233	attachment.
234
235	=cut
236
237	# the following variables are defined in .xs and must not be re-created
238	our @CB_GLOBAL = (); # registry for all global events
239	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
240	our @CB_PLAYER = ();
241	our @CB_TYPE = (); # registry for type (cf-object class) based events
242	our @CB_MAP = ();
243
244	my %attachment;
245
246	sub _attach_cb($\%$$$) {
247	my ($registry, $undo, $event, $prio, $cb) = @_;
248
249	use sort 'stable';
250
251	$cb = [$prio, $cb];
252
253	@{$registry->[$event]} = sort
254	{ $a->[0] cmp $b->[0] }
255	@{$registry->[$event] || []}, $cb;
256
257	push @{$undo->{cb}}, [$event, $cb];
258	}
259
260	# attach handles attaching event callbacks
261	# the only thing the caller has to do is pass the correct
262	# registry (== where the callback attaches to).
263	sub _attach(\@$@) {
264	my ($registry, $klass, @arg) = @_;
265
266	my $prio = 0;
267
268	my %undo = (
269	registry => $registry,
270	cb => [],
271	);
272
273	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
274
275	while (@arg) {
276	my $type = shift @arg;
277
278	if ($type eq "prio") {
279	$prio = shift @arg;
280
281	} elsif ($type eq "package") {
282	my $pkg = shift @arg;
283
284	while (my ($name, $id) = each %cb_id) {
285	if (my $cb = $pkg->can ($name)) {
286	_attach_cb $registry, %undo, $id, $prio, $cb;
287	}
288	}	572	}
289
290	} elsif (exists $cb_id{$type}) {
291	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
292
293	} elsif (ref $type) {
294	warn "attaching objects not supported, ignoring.\n";
295
296	} else {
297	shift @arg;
298	warn "attach argument '$type' not supported, ignoring.\n";
299	}
300	}
301
302	\%undo
303	}
304
305	sub _attach_attachment {
306	my ($obj, $name, %arg) = @_;
307
308	return if exists $obj->{_attachment}{$name};
309
310	my $res;
311
312	if (my $attach = $attachment{$name}) {
313	my $registry = $obj->registry;
314
315	for (@$attach) {
316	my ($klass, @attach) = @$_;
317	$res = _attach @$registry, $klass, @attach;
318	}
319
320	$obj->{$name} = \%arg;
321	} else {
322	warn "object uses attachment '$name' that is not available, postponing.\n";
323	}
324
325	$obj->{_attachment}{$name} = undef;
326
327	$res->{attachment} = $name;
328	$res
329	}
330
331	*cf::object::attach =
332	*cf::player::attach =
333	*cf::map::attach = sub {
334	my ($obj, $name, %arg) = @_;
335
336	_attach_attachment $obj, $name, %arg;
337	};
338
339	# all those should be optimised
340	*cf::object::detach =
341	*cf::player::detach =
342	*cf::map::detach = sub {
343	my ($obj, $name) = @_;
344
345	delete $obj->{_attachment}{$name};
346	reattach ($obj);
347	};
348
349	*cf::object::attached =
350	*cf::player::attached =
351	*cf::map::attached = sub {
352	my ($obj, $name) = @_;
353
354	exists $obj->{_attachment}{$name}
355	};
356
357	sub attach_global {
358	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
359	}
360
361	sub attach_to_type {
362	my $type = shift;
363	my $subtype = shift;
364
365	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
366	}
367
368	sub attach_to_objects {
369	_attach @CB_OBJECT, KLASS_OBJECT, @_
370	}
371
372	sub attach_to_players {
373	_attach @CB_PLAYER, KLASS_PLAYER, @_
374	}
375
376	sub attach_to_maps {
377	_attach @CB_MAP, KLASS_MAP, @_
378	}
379
380	sub register_attachment {
381	my $name = shift;
382
383	$attachment{$name} = [[KLASS_OBJECT, @_]];
384	}
385
386	sub register_player_attachment {
387	my $name = shift;
388
389	$attachment{$name} = [[KLASS_PLAYER, @_]];
390	}
391
392	sub register_map_attachment {
393	my $name = shift;
394
395	$attachment{$name} = [[KLASS_MAP, @_]];
396	}
397
398	our $override;
399	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
400
401	sub override {
402	$override = 1;
403	@invoke_results = ();
404	}
405
406	sub do_invoke {
407	my $event = shift;
408	my $callbacks = shift;
409
410	@invoke_results = ();
411
412	local $override;
413
414	for (@$callbacks) {
415	eval { &{$_->[1]} };
416
417	if ($@) {
418	warn "$@";
419	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
420	override;
421	}
422
423	return 1 if $override;
424	}
425
426	0	573	}
427	}
428		574
429	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	575	=item $attachable->valid
430
431	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
432
433	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
434
435	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
436
437	Generate a global/object/player/map-specific event with the given arguments.
438
439	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
440	removed in future versions), and there is no public API to access override
441	results (if you must, access C<@cf::invoke_results> directly).
442
443	=back
444
445	=cut
446
447	#############################################################################
448
449	=head2 METHODS VALID FOR ALL CORE OBJECTS
450
451	=over 4
452
453	=item $object->valid, $player->valid, $map->valid
454		576
455	Just because you have a perl object does not mean that the corresponding	577	Just because you have a perl object does not mean that the corresponding
456	C-level object still exists. If you try to access an object that has no	578	C-level object still exists. If you try to access an object that has no
457	valid C counterpart anymore you get an exception at runtime. This method	579	valid C counterpart anymore you get an exception at runtime. This method
458	can be used to test for existence of the C object part without causing an	580	can be used to test for existence of the C object part without causing an
459	exception.	581	exception.
460		582
		583	=cut
		584
		585	# the following variables are defined in .xs and must not be re-created
		586	our @CB_GLOBAL = (); # registry for all global events
		587	our @CB_ATTACHABLE = (); # registry for all attachables
		588	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		589	our @CB_PLAYER = ();
		590	our @CB_CLIENT = ();
		591	our @CB_TYPE = (); # registry for type (cf-object class) based events
		592	our @CB_MAP = ();
		593
		594	my %attachment;
		595
		596	sub _attach_cb($$$$) {
		597	my ($registry, $event, $prio, $cb) = @_;
		598
		599	use sort 'stable';
		600
		601	$cb = [$prio, $cb];
		602
		603	@{$registry->[$event]} = sort
		604	{ $a->[0] cmp $b->[0] }
		605	@{$registry->[$event] || []}, $cb;
		606	}
		607
		608	# hack
		609	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		610
		611	# attach handles attaching event callbacks
		612	# the only thing the caller has to do is pass the correct
		613	# registry (== where the callback attaches to).
		614	sub _attach {
		615	my ($registry, $klass, @arg) = @_;
		616
		617	my $object_type;
		618	my $prio = 0;
		619	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		620
		621	#TODO: get rid of this hack
		622	if ($attachable_klass{$klass}) {
		623	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		624	}
		625
		626	while (@arg) {
		627	my $type = shift @arg;
		628
		629	if ($type eq "prio") {
		630	$prio = shift @arg;
		631
		632	} elsif ($type eq "type") {
		633	$object_type = shift @arg;
		634	$registry = $CB_TYPE[$object_type] ||= [];
		635
		636	} elsif ($type eq "subtype") {
		637	defined $object_type or Carp::croak "subtype specified without type";
		638	my $object_subtype = shift @arg;
		639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		640
		641	} elsif ($type eq "package") {
		642	my $pkg = shift @arg;
		643
		644	while (my ($name, $id) = each %cb_id) {
		645	if (my $cb = $pkg->can ($name)) {
		646	_attach_cb $registry, $id, $prio, $cb;
		647	}
		648	}
		649
		650	} elsif (exists $cb_id{$type}) {
		651	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		652
		653	} elsif (ref $type) {
		654	warn "attaching objects not supported, ignoring.\n";
		655
		656	} else {
		657	shift @arg;
		658	warn "attach argument '$type' not supported, ignoring.\n";
		659	}
		660	}
		661	}
		662
		663	sub _object_attach {
		664	my ($obj, $name, %arg) = @_;
		665
		666	return if exists $obj->{_attachment}{$name};
		667
		668	if (my $attach = $attachment{$name}) {
		669	my $registry = $obj->registry;
		670
		671	for (@$attach) {
		672	my ($klass, @attach) = @$_;
		673	_attach $registry, $klass, @attach;
		674	}
		675
		676	$obj->{$name} = \%arg;
		677	} else {
		678	warn "object uses attachment '$name' that is not available, postponing.\n";
		679	}
		680
		681	$obj->{_attachment}{$name} = undef;
		682	}
		683
		684	sub cf::attachable::attach {
		685	if (ref $_[0]) {
		686	_object_attach @_;
		687	} else {
		688	_attach shift->_attach_registry, @_;
		689	}
		690	};
		691
		692	# all those should be optimised
		693	sub cf::attachable::detach {
		694	my ($obj, $name) = @_;
		695
		696	if (ref $obj) {
		697	delete $obj->{_attachment}{$name};
		698	reattach ($obj);
		699	} else {
		700	Carp::croak "cannot, currently, detach class attachments";
		701	}
		702	};
		703
		704	sub cf::attachable::attached {
		705	my ($obj, $name) = @_;
		706
		707	exists $obj->{_attachment}{$name}
		708	}
		709
		710	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		711	eval "#line " . __LINE__ . " 'cf.pm'
		712	sub cf::\L$klass\E::_attach_registry {
		713	(\\\@CB_$klass, KLASS_$klass)
		714	}
		715
		716	sub cf::\L$klass\E::attachment {
		717	my \$name = shift;
		718
		719	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		720	}
		721	";
		722	die if $@;
		723	}
		724
		725	our $override;
		726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		727
		728	sub override {
		729	$override = 1;
		730	@invoke_results = ();
		731	}
		732
		733	sub do_invoke {
		734	my $event = shift;
		735	my $callbacks = shift;
		736
		737	@invoke_results = ();
		738
		739	local $override;
		740
		741	for (@$callbacks) {
		742	eval { &{$_->[1]} };
		743
		744	if ($@) {
		745	warn "$@";
		746	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		747	override;
		748	}
		749
		750	return 1 if $override;
		751	}
		752
		753	0
		754	}
		755
		756	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		757
		758	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		759
		760	Generate an object-specific event with the given arguments.
		761
		762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		763	removed in future versions), and there is no public API to access override
		764	results (if you must, access C<@cf::invoke_results> directly).
		765
461	=back	766	=back
462		767
463	=cut	768	=cut
464
465	*cf::object::valid =
466	*cf::player::valid =
467	*cf::map::valid = \&cf::_valid;
468		769
469	#############################################################################	770	#############################################################################
470	# object support	771	# object support
471		772
472	sub instantiate {
473	my ($obj, $data) = @_;
474
475	$data = from_json $data;
476
477	for (@$data) {
478	my ($name, $args) = @$_;
479
480	$obj->attach ($name, %{$args || {} });
481	}
482	}
483
484	# basically do the same as instantiate, without calling instantiate
485	sub reattach {	773	sub reattach {
		774	# basically do the same as instantiate, without calling instantiate
486	my ($obj) = @_;	775	my ($obj) = @_;
		776
487	my $registry = $obj->registry;	777	my $registry = $obj->registry;
488		778
489	@$registry = ();	779	@$registry = ();
490		780
491	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	781	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
492		782
493	for my $name (keys %{ $obj->{_attachment} || {} }) {	783	for my $name (keys %{ $obj->{_attachment} || {} }) {
494	if (my $attach = $attachment{$name}) {	784	if (my $attach = $attachment{$name}) {
495	for (@$attach) {	785	for (@$attach) {
496	my ($klass, @attach) = @$_;	786	my ($klass, @attach) = @$_;
497	_attach @$registry, $klass, @attach;	787	_attach $registry, $klass, @attach;
498	}	788	}
499	} else {	789	} else {
500	warn "object uses attachment '$name' that is not available, postponing.\n";	790	warn "object uses attachment '$name' that is not available, postponing.\n";
501	}	791	}
502	}	792	}
503	}	793	}
504		794
505	sub object_freezer_save {	795	cf::attachable->attach (
506	my ($filename, $rdata, $objs) = @_;
507
508	if (length $$rdata) {
509	warn sprintf "saving %s (%d,%d)\n",
510	$filename, length $$rdata, scalar @$objs;
511
512	if (open my $fh, ">:raw", "$filename~") {
513	chmod SAVE_MODE, $fh;
514	syswrite $fh, $$rdata;
515	close $fh;
516
517	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
518	chmod SAVE_MODE, $fh;
519	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
520	close $fh;
521	rename "$filename.pst~", "$filename.pst";
522	} else {
523	unlink "$filename.pst";
524	}
525
526	rename "$filename~", $filename;
527	} else {
528	warn "FATAL: $filename~: $!\n";
529	}
530	} else {
531	unlink $filename;
532	unlink "$filename.pst";
533	}
534	}
535
536	sub object_freezer_as_string {
537	my ($rdata, $objs) = @_;
538
539	use Data::Dumper;
540
541	$$rdata . Dumper $objs
542	}
543
544	sub object_thawer_load {
545	my ($filename) = @_;
546
547	local $/;
548
549	my $av;
550
551	#TODO: use sysread etc.
552	if (open my $data, "<:raw:perlio", $filename) {
553	$data = <$data>;
554	if (open my $pst, "<:raw:perlio", "$filename.pst") {
555	$av = eval { (Storable::thaw <$pst>)->{objs} };
556	}
557	return ($data, $av);
558	}
559
560	()
561	}
562
563	attach_to_objects
564	prio => -1000000,	796	prio => -1000000,
		797	on_instantiate => sub {
		798	my ($obj, $data) = @_;
		799
		800	$data = from_json $data;
		801
		802	for (@$data) {
		803	my ($name, $args) = @$_;
		804
		805	$obj->attach ($name, %{$args || {} });
		806	}
		807	},
		808	on_reattach => \&reattach,
565	on_clone => sub {	809	on_clone => sub {
566	my ($src, $dst) = @_;	810	my ($src, $dst) = @_;
567		811
568	@{$dst->registry} = @{$src->registry};	812	@{$dst->registry} = @{$src->registry};
569		813
570	%$dst = %$src;	814	%$dst = %$src;
571		815
572	%{$dst->{_attachment}} = %{$src->{_attachment}}	816	%{$dst->{_attachment}} = %{$src->{_attachment}}
573	if exists $src->{_attachment};	817	if exists $src->{_attachment};
574	},	818	},
575	;	819	);
		820
		821	sub object_freezer_save {
		822	my ($filename, $rdata, $objs) = @_;
		823
		824	sync_job {
		825	if (length $$rdata) {
		826	warn sprintf "saving %s (%d,%d)\n",
		827	$filename, length $$rdata, scalar @$objs;
		828
		829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		830	chmod SAVE_MODE, $fh;
		831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		832	aio_fsync $fh;
		833	close $fh;
		834
		835	if (@$objs) {
		836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		837	chmod SAVE_MODE, $fh;
		838	my $data = Storable::nfreeze { version => 1, objs => $objs };
		839	aio_write $fh, 0, (length $data), $data, 0;
		840	aio_fsync $fh;
		841	close $fh;
		842	aio_rename "$filename.pst~", "$filename.pst";
		843	}
		844	} else {
		845	aio_unlink "$filename.pst";
		846	}
		847
		848	aio_rename "$filename~", $filename;
		849	} else {
		850	warn "FATAL: $filename~: $!\n";
		851	}
		852	} else {
		853	aio_unlink $filename;
		854	aio_unlink "$filename.pst";
		855	}
		856	}
		857	}
		858
		859	sub object_freezer_as_string {
		860	my ($rdata, $objs) = @_;
		861
		862	use Data::Dumper;
		863
		864	$$rdata . Dumper $objs
		865	}
		866
		867	sub object_thawer_load {
		868	my ($filename) = @_;
		869
		870	my ($data, $av);
		871
		872	(aio_load $filename, $data) >= 0
		873	or return;
		874
		875	unless (aio_stat "$filename.pst") {
		876	(aio_load "$filename.pst", $av) >= 0
		877	or return;
		878	$av = eval { (Storable::thaw $av)->{objs} };
		879	}
		880
		881	warn sprintf "loading %s (%d)\n",
		882	$filename, length $data, scalar @{$av || []};#d#
		883	return ($data, $av);
		884	}
576		885
577	#############################################################################	886	#############################################################################
578	# command handling &c	887	# command handling &c
579		888
580	=item cf::register_command $name => \&callback($ob,$args);	889	=item cf::register_command $name => \&callback($ob,$args);
…		…
609	#warn "registering extcmd '$name' to '$caller'";	918	#warn "registering extcmd '$name' to '$caller'";
610		919
611	$EXTCMD{$name} = [$cb, $caller];	920	$EXTCMD{$name} = [$cb, $caller];
612	}	921	}
613		922
614	attach_to_players	923	cf::player->attach (
615	on_command => sub {	924	on_command => sub {
616	my ($pl, $name, $params) = @_;	925	my ($pl, $name, $params) = @_;
617		926
618	my $cb = $COMMAND{$name}	927	my $cb = $COMMAND{$name}
619	or return;	928	or return;
…		…
639	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
640	}	949	}
641		950
642	cf::override;	951	cf::override;
643	},	952	},
644	;	953	);
645		954
646	sub register {	955	sub register {
647	my ($base, $pkg) = @_;	956	my ($base, $pkg) = @_;
648		957
649	#TODO	958	#TODO
…		…
718		1027
719	Symbol::delete_package $pkg;	1028	Symbol::delete_package $pkg;
720	}	1029	}
721		1030
722	sub load_extensions {	1031	sub load_extensions {
723	my $LIBDIR = maps_directory "perl";
724
725	for my $ext (<$LIBDIR/*.ext>) {	1032	for my $ext (<$LIBDIR/*.ext>) {
726	next unless -r $ext;	1033	next unless -r $ext;
727	eval {	1034	eval {
728	load_extension $ext;	1035	load_extension $ext;
729	1	1036	1
…		…
741	defined $path or return;	1048	defined $path or return;
742		1049
743	unlink "$path.pst";	1050	unlink "$path.pst";
744	};	1051	};
745		1052
746	attach_to_maps prio => -10000, package => cf::mapsupport::;	1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
747		1054
748	#############################################################################	1055	#############################################################################
749	# load/save perl data associated with player->ob objects	1056	# load/save perl data associated with player->ob objects
750		1057
751	sub all_objects(@) {	1058	sub all_objects(@) {
752	@_, map all_objects ($_->inv), @_	1059	@_, map all_objects ($_->inv), @_
753	}	1060	}
754		1061
755	# TODO: compatibility cruft, remove when no longer needed	1062	# TODO: compatibility cruft, remove when no longer needed
756	attach_to_players	1063	cf::player->attach (
757	on_load => sub {	1064	on_load => sub {
758	my ($pl, $path) = @_;	1065	my ($pl, $path) = @_;
759		1066
760	for my $o (all_objects $pl->ob) {	1067	for my $o (all_objects $pl->ob) {
761	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
763		1070
764	%$o = %{ Storable::thaw pack "H*", $value };	1071	%$o = %{ Storable::thaw pack "H*", $value };
765	}	1072	}
766	}	1073	}
767	},	1074	},
768	;	1075	);
769		1076
770	#############################################################################	1077	#############################################################################
771		1078
772	=head2 CORE EXTENSIONS	1079	=head2 CORE EXTENSIONS
773		1080
774	Functions and methods that extend core crossfire objects.	1081	Functions and methods that extend core crossfire objects.
		1082
		1083	=head3 cf::player
775		1084
776	=over 4	1085	=over 4
777		1086
778	=item cf::player::exists $login	1087	=item cf::player::exists $login
779		1088
…		…
784	sub cf::player::exists($) {	1093	sub cf::player::exists($) {
785	cf::player::find $_[0]	1094	cf::player::find $_[0]
786	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
787	}	1096	}
788		1097
		1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1099
		1100	Sends an ext reply to the player.
		1101
		1102	=cut
		1103
		1104	sub cf::player::ext_reply($$$%) {
		1105	my ($self, $id, %msg) = @_;
		1106
		1107	$msg{msgid} = $id;
		1108
		1109	$self->send ("ext " . to_json \%msg);
		1110	}
		1111
		1112	=back
		1113
		1114
		1115	=head3 cf::map
		1116
		1117	=over 4
		1118
		1119	=cut
		1120
		1121	package cf::map;
		1122
		1123	use Fcntl;
		1124	use Coro::AIO;
		1125
		1126	our $MAX_RESET = 3600;
		1127	our $DEFAULT_RESET = 3000;
		1128
		1129	sub generate_random_map {
		1130	my ($path, $rmp) = @_;
		1131
		1132	# mit "rum" bekleckern, nicht
		1133	cf::map::_create_random_map
		1134	$path,
		1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1138	$rmp->{exit_on_final_map},
		1139	$rmp->{xsize}, $rmp->{ysize},
		1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1145	(cf::region::find $rmp->{region})
		1146	}
		1147
		1148	# and all this just because we cannot iterate over
		1149	# all maps in C++...
		1150	sub change_all_map_light {
		1151	my ($change) = @_;
		1152
		1153	$_->change_map_light ($change)
		1154	for grep $_->outdoor, values %cf::MAP;
		1155	}
		1156
		1157	sub try_load_header($) {
		1158	my ($path) = @_;
		1159
		1160	utf8::encode $path;
		1161	aio_open $path, O_RDONLY, 0
		1162	or return;
		1163
		1164	my $map = cf::map::new
		1165	or return;
		1166
		1167	# for better error messages only, will be overwritten
		1168	$map->path ($path);
		1169
		1170	$map->load_header ($path)
		1171	or return;
		1172
		1173	$map->{load_path} = $path;
		1174
		1175	$map
		1176	}
		1177
		1178	sub find;
		1179	sub find {
		1180	my ($path, $origin) = @_;
		1181
		1182	#warn "find<$path,$origin>\n";#d#
		1183
		1184	$path = new cf::path $path, $origin && $origin->path;
		1185	my $key = $path->as_string;
		1186
		1187	cf::lock_wait "map_find:$key";
		1188
		1189	$cf::MAP{$key} || do {
		1190	my $guard = cf::lock_acquire "map_find:$key";
		1191
		1192	# do it the slow way
		1193	my $map = try_load_header $path->save_path;
		1194
		1195	Coro::cede;
		1196
		1197	if ($map) {
		1198	$map->last_access ((delete $map->{last_access})
		1199	|| $cf::RUNTIME); #d#
		1200	# safety
		1201	$map->{instantiate_time} = $cf::RUNTIME
		1202	if $map->{instantiate_time} > $cf::RUNTIME;
		1203	} else {
		1204	if (my $rmp = $path->random_map_params) {
		1205	$map = generate_random_map $key, $rmp;
		1206	} else {
		1207	$map = try_load_header $path->load_path;
		1208	}
		1209
		1210	$map or return;
		1211
		1212	$map->{load_original} = 1;
		1213	$map->{instantiate_time} = $cf::RUNTIME;
		1214	$map->last_access ($cf::RUNTIME);
		1215	$map->instantiate;
		1216
		1217	# per-player maps become, after loading, normal maps
		1218	$map->per_player (0) if $path->{user_rel};
		1219	}
		1220
		1221	$map->path ($key);
		1222	$map->{path} = $path;
		1223	$map->{last_save} = $cf::RUNTIME;
		1224
		1225	Coro::cede;
		1226
		1227	if ($map->should_reset) {
		1228	$map->reset;
		1229	undef $guard;
		1230	$map = find $path
		1231	or return;
		1232	}
		1233
		1234	$cf::MAP{$key} = $map
		1235	}
		1236	}
		1237
		1238	sub load {
		1239	my ($self) = @_;
		1240
		1241	my $path = $self->{path};
		1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1243
		1244	return if $self->in_memory != cf::MAP_SWAPPED;
		1245
		1246	$self->in_memory (cf::MAP_LOADING);
		1247
		1248	$self->alloc;
		1249	$self->load_objects ($self->{load_path}, 1)
		1250	or return;
		1251
		1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1253	if delete $self->{load_original};
		1254
		1255	if (my $uniq = $path->uniq_path) {
		1256	utf8::encode $uniq;
		1257	if (aio_open $uniq, O_RDONLY, 0) {
		1258	$self->clear_unique_items;
		1259	$self->load_objects ($uniq, 0);
		1260	}
		1261	}
		1262
		1263	Coro::cede;
		1264
		1265	# now do the right thing for maps
		1266	$self->link_multipart_objects;
		1267
		1268	if ($self->{path}->is_style_map) {
		1269	$self->{deny_save} = 1;
		1270	$self->{deny_reset} = 1;
		1271	} else {
		1272	$self->fix_auto_apply;
		1273	$self->decay_objects;
		1274	$self->update_buttons;
		1275	$self->set_darkness_map;
		1276	$self->difficulty ($self->estimate_difficulty)
		1277	unless $self->difficulty;
		1278	$self->activate;
		1279	}
		1280
		1281	Coro::cede;
		1282
		1283	$self->in_memory (cf::MAP_IN_MEMORY);
		1284	}
		1285
		1286	sub find_sync {
		1287	my ($path, $origin) = @_;
		1288
		1289	cf::sync_job { cf::map::find $path, $origin }
		1290	}
		1291
		1292	sub do_load_sync {
		1293	my ($map) = @_;
		1294
		1295	cf::sync_job { $map->load };
		1296	}
		1297
		1298	sub save {
		1299	my ($self) = @_;
		1300
		1301	$self->{last_save} = $cf::RUNTIME;
		1302
		1303	return unless $self->dirty;
		1304
		1305	my $save = $self->{path}->save_path; utf8::encode $save;
		1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1307
		1308	$self->{load_path} = $save;
		1309
		1310	return if $self->{deny_save};
		1311
		1312	local $self->{last_access} = $self->last_access;#d#
		1313
		1314	if ($uniq) {
		1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1316	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1317	} else {
		1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1319	}
		1320	}
		1321
		1322	sub swap_out {
		1323	my ($self) = @_;
		1324
		1325	# save first because save cedes
		1326	$self->save;
		1327
		1328	return if $self->players;
		1329	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1330	return if $self->{deny_save};
		1331
		1332	$self->clear;
		1333	$self->in_memory (cf::MAP_SWAPPED);
		1334	}
		1335
		1336	sub reset_at {
		1337	my ($self) = @_;
		1338
		1339	# TODO: safety, remove and allow resettable per-player maps
		1340	return 1e99 if $self->{path}{user_rel};
		1341	return 1e99 if $self->{deny_reset};
		1342
		1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1345
		1346	$time + $to
		1347	}
		1348
		1349	sub should_reset {
		1350	my ($self) = @_;
		1351
		1352	$self->reset_at <= $cf::RUNTIME
		1353	}
		1354
		1355	sub unlink_save {
		1356	my ($self) = @_;
		1357
		1358	utf8::encode (my $save = $self->{path}->save_path);
		1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1361	}
		1362
		1363	sub rename {
		1364	my ($self, $new_path) = @_;
		1365
		1366	$self->unlink_save;
		1367
		1368	delete $cf::MAP{$self->path};
		1369	$self->{path} = new cf::path $new_path;
		1370	$self->path ($self->{path}->as_string);
		1371	$cf::MAP{$self->path} = $self;
		1372
		1373	$self->save;
		1374	}
		1375
		1376	sub reset {
		1377	my ($self) = @_;
		1378
		1379	return if $self->players;
		1380	return if $self->{path}{user_rel};#d#
		1381
		1382	warn "resetting map ", $self->path;#d#
		1383
		1384	delete $cf::MAP{$self->path};
		1385
		1386	$_->clear_links_to ($self) for values %cf::MAP;
		1387
		1388	$self->unlink_save;
		1389	$self->destroy;
		1390	}
		1391
		1392	my $nuke_counter = "aaaa";
		1393
		1394	sub nuke {
		1395	my ($self) = @_;
		1396
		1397	$self->{deny_save} = 1;
		1398	$self->reset_timeout (1);
		1399	$self->rename ("{nuke}/" . ($nuke_counter++));
		1400	$self->reset; # polite request, might not happen
		1401	}
		1402
		1403	sub customise_for {
		1404	my ($map, $ob) = @_;
		1405
		1406	if ($map->per_player) {
		1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1408	}
		1409
		1410	$map
		1411	}
		1412
		1413	sub emergency_save {
		1414	my $freeze_guard = cf::freeze_mainloop;
		1415
		1416	warn "enter emergency map save\n";
		1417
		1418	cf::sync_job {
		1419	warn "begin emergency map save\n";
		1420	$_->save for values %cf::MAP;
		1421	};
		1422
		1423	warn "end emergency map save\n";
		1424	}
		1425
		1426	package cf;
		1427
		1428	=back
		1429
		1430
		1431	=head3 cf::object::player
		1432
		1433	=over 4
		1434
789	=item $player_object->reply ($npc, $msg[, $flags])	1435	=item $player_object->reply ($npc, $msg[, $flags])
790		1436
791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1437	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	1438	can be C<undef>. Does the right thing when the player is currently in a
793	dialogue with the given NPC character.	1439	dialogue with the given NPC character.
794		1440
795	=cut	1441	=cut
796		1442
797	# rough implementation of a future "reply" method that works	1443	# rough implementation of a future "reply" method that works
798	# with dialog boxes.	1444	# with dialog boxes.
		1445	#TODO: the first argument must go, split into a $npc->reply_to ( method
799	sub cf::object::player::reply($$$;$) {	1446	sub cf::object::player::reply($$$;$) {
800	my ($self, $npc, $msg, $flags) = @_;	1447	my ($self, $npc, $msg, $flags) = @_;
801		1448
802	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
803		1450
…		…
807	$msg = $npc->name . " says: $msg" if $npc;	1454	$msg = $npc->name . " says: $msg" if $npc;
808	$self->message ($msg, $flags);	1455	$self->message ($msg, $flags);
809	}	1456	}
810	}	1457	}
811		1458
812	=item $player->ext_reply ($msgid, $msgtype, %msg)
813
814	Sends an ext reply to the player.
815
816	=cut
817
818	sub cf::player::ext_reply($$$%) {
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")	1459	=item $player_object->may ("access")
827		1460
828	Returns wether the given player is authorized to access resource "access"	1461	Returns wether the given player is authorized to access resource "access"
829	(e.g. "command_wizcast").	1462	(e.g. "command_wizcast").
830		1463
…		…
837	(ref $cf::CFG{"may_$access"}	1470	(ref $cf::CFG{"may_$access"}
838	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1471	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
839	: $cf::CFG{"may_$access"})	1472	: $cf::CFG{"may_$access"})
840	}	1473	}
841		1474
842	=cut	1475	=item $player_object->enter_link
843		1476
844	#############################################################################	1477	Freezes the player and moves him/her to a special map (C<{link}>).
		1478
		1479	The player should be reaosnably safe there for short amounts of time. You
		1480	I<MUST> call C<leave_link> as soon as possible, though.
		1481
		1482	=item $player_object->leave_link ($map, $x, $y)
		1483
		1484	Moves the player out of the specila link map onto the given map. If the
		1485	map is not valid (or omitted), the player will be moved back to the
		1486	location he/she was before the call to C<enter_link>, or, if that fails,
		1487	to the emergency map position.
		1488
		1489	Might block.
		1490
		1491	=cut
		1492
		1493	sub cf::object::player::enter_link {
		1494	my ($self) = @_;
		1495
		1496	$self->deactivate_recursive;
		1497
		1498	return if $self->map == $LINK_MAP;
		1499
		1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1501	if $self->map;
		1502
		1503	$self->enter_map ($LINK_MAP, 20, 20);
		1504	}
		1505
		1506	sub cf::object::player::leave_link {
		1507	my ($self, $map, $x, $y) = @_;
		1508
		1509	my $link_pos = delete $self->{_link_pos};
		1510
		1511	unless ($map) {
		1512	# restore original map position
		1513	($map, $x, $y) = @{ $link_pos || [] };
		1514	$map = cf::map::find $map;
		1515
		1516	unless ($map) {
		1517	($map, $x, $y) = @$EMERGENCY_POSITION;
		1518	$map = cf::map::find $map
		1519	or die "FATAL: cannot load emergency map\n";
		1520	}
		1521	}
		1522
		1523	($x, $y) = (-1, -1)
		1524	unless (defined $x) && (defined $y);
		1525
		1526	# use -1 or undef as default coordinates, not 0, 0
		1527	($x, $y) = ($map->enter_x, $map->enter_y)
		1528	if $x <=0 && $y <= 0;
		1529
		1530	$map->load;
		1531
		1532	$self->activate_recursive;
		1533	$self->enter_map ($map, $x, $y);
		1534	}
		1535
		1536	cf::player->attach (
		1537	on_logout => sub {
		1538	my ($pl) = @_;
		1539
		1540	# abort map switching before logout
		1541	if ($pl->ob->{_link_pos}) {
		1542	cf::sync_job {
		1543	$pl->ob->leave_link
		1544	};
		1545	}
		1546	},
		1547	on_login => sub {
		1548	my ($pl) = @_;
		1549
		1550	# try to abort aborted map switching on player login :)
		1551	# should happen only on crashes
		1552	if ($pl->ob->{_link_pos}) {
		1553	$pl->ob->enter_link;
		1554	cf::async {
		1555	# we need this sleep as the login has a concurrent enter_exit running
		1556	# and this sleep increases chances of the player not ending up in scorn
		1557	Coro::Timer::sleep 1;
		1558	$pl->ob->leave_link;
		1559	};
		1560	}
		1561	},
		1562	);
		1563
		1564	=item $player_object->goto ($path, $x, $y)
		1565
		1566	=cut
		1567
		1568	sub cf::object::player::goto {
		1569	my ($self, $path, $x, $y) = @_;
		1570
		1571	$self->enter_link;
		1572
		1573	(cf::async {
		1574	$path = new cf::path $path;
		1575
		1576	my $map = cf::map::find $path->as_string;
		1577	$map = $map->customise_for ($self) if $map;
		1578
		1579	# warn "entering ", $map->path, " at ($x, $y)\n"
		1580	# if $map;
		1581
		1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1583
		1584	$self->leave_link ($map, $x, $y);
		1585	})->prio (1);
		1586	}
		1587
		1588	=item $player_object->enter_exit ($exit_object)
		1589
		1590	=cut
		1591
		1592	sub parse_random_map_params {
		1593	my ($spec) = @_;
		1594
		1595	my $rmp = { # defaults
		1596	xsize => 10,
		1597	ysize => 10,
		1598	};
		1599
		1600	for (split /\n/, $spec) {
		1601	my ($k, $v) = split /\s+/, $_, 2;
		1602
		1603	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1604	}
		1605
		1606	$rmp
		1607	}
		1608
		1609	sub prepare_random_map {
		1610	my ($exit) = @_;
		1611
		1612	# all this does is basically replace the /! path by
		1613	# a new random map path (?random/...) with a seed
		1614	# that depends on the exit object
		1615
		1616	my $rmp = parse_random_map_params $exit->msg;
		1617
		1618	if ($exit->map) {
		1619	$rmp->{region} = $exit->map->region_name;
		1620	$rmp->{origin_map} = $exit->map->path;
		1621	$rmp->{origin_x} = $exit->x;
		1622	$rmp->{origin_y} = $exit->y;
		1623	}
		1624
		1625	$rmp->{random_seed} ||= $exit->random_seed;
		1626
		1627	my $data = cf::to_json $rmp;
		1628	my $md5 = Digest::MD5::md5_hex $data;
		1629
		1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1631	aio_write $fh, 0, (length $data), $data, 0;
		1632
		1633	$exit->slaying ("?random/$md5");
		1634	$exit->msg (undef);
		1635	}
		1636	}
		1637
		1638	sub cf::object::player::enter_exit {
		1639	my ($self, $exit) = @_;
		1640
		1641	return unless $self->type == cf::PLAYER;
		1642
		1643	$self->enter_link;
		1644
		1645	(cf::async {
		1646	$self->deactivate_recursive; # just to be sure
		1647	unless (eval {
		1648	prepare_random_map $exit
		1649	if $exit->slaying eq "/!";
		1650
		1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1652	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1653
		1654	1;
		1655	}) {
		1656	$self->message ("Something went wrong deep within the crossfire server. "
		1657	. "I'll try to bring you back to the map you were before. "
		1658	. "Please report this to the dungeon master",
		1659	cf::NDI_UNIQUE | cf::NDI_RED);
		1660
		1661	warn "ERROR in enter_exit: $@";
		1662	$self->leave_link;
		1663	}
		1664	})->prio (1);
		1665	}
		1666
		1667	=head3 cf::client
		1668
		1669	=over 4
		1670
		1671	=item $client->send_drawinfo ($text, $flags)
		1672
		1673	Sends a drawinfo packet to the client. Circumvents output buffering so
		1674	should not be used under normal circumstances.
		1675
		1676	=cut
		1677
		1678	sub cf::client::send_drawinfo {
		1679	my ($self, $text, $flags) = @_;
		1680
		1681	utf8::encode $text;
		1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1683	}
		1684
		1685
		1686	=item $success = $client->query ($flags, "text", \&cb)
		1687
		1688	Queues a query to the client, calling the given callback with
		1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1691
		1692	Queries can fail, so check the return code. Or don't, as queries will become
		1693	reliable at some point in the future.
		1694
		1695	=cut
		1696
		1697	sub cf::client::query {
		1698	my ($self, $flags, $text, $cb) = @_;
		1699
		1700	return unless $self->state == ST_PLAYING
		1701	|| $self->state == ST_SETUP
		1702	|| $self->state == ST_CUSTOM;
		1703
		1704	$self->state (ST_CUSTOM);
		1705
		1706	utf8::encode $text;
		1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1708
		1709	$self->send_packet ($self->{query_queue}[0][0])
		1710	if @{ $self->{query_queue} } == 1;
		1711	}
		1712
		1713	cf::client->attach (
		1714	on_reply => sub {
		1715	my ($ns, $msg) = @_;
		1716
		1717	# this weird shuffling is so that direct followup queries
		1718	# get handled first
		1719	my $queue = delete $ns->{query_queue}
		1720	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1721
		1722	(shift @$queue)->[1]->($msg);
		1723
		1724	push @{ $ns->{query_queue} }, @$queue;
		1725
		1726	if (@{ $ns->{query_queue} } == @$queue) {
		1727	if (@$queue) {
		1728	$ns->send_packet ($ns->{query_queue}[0][0]);
		1729	} else {
		1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1731	}
		1732	}
		1733	},
		1734	);
		1735
		1736	=item $client->coro (\&cb)
		1737
		1738	Create a new coroutine, running the specified callback. The coroutine will
		1739	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1740	or loss of connection).
		1741
		1742	=cut
		1743
		1744	sub cf::client::coro {
		1745	my ($self, $cb) = @_;
		1746
		1747	my $coro = &cf::async ($cb);
		1748
		1749	$coro->on_destroy (sub {
		1750	delete $self->{_coro}{$coro+0};
		1751	});
		1752
		1753	$self->{_coro}{$coro+0} = $coro;
		1754
		1755	$coro
		1756	}
		1757
		1758	cf::client->attach (
		1759	on_destroy => sub {
		1760	my ($ns) = @_;
		1761
		1762	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1763	},
		1764	);
		1765
		1766	=back
		1767
845		1768
846	=head2 SAFE SCRIPTING	1769	=head2 SAFE SCRIPTING
847		1770
848	Functions that provide a safe environment to compile and execute	1771	Functions that provide a safe environment to compile and execute
849	snippets of perl code without them endangering the safety of the server	1772	snippets of perl code without them endangering the safety of the server
…		…
864		1787
865	=pod	1788	=pod
866		1789
867	The following fucntions and emthods are available within a safe environment:	1790	The following fucntions and emthods are available within a safe environment:
868		1791
869	cf::object contr pay_amount pay_player	1792	cf::object contr pay_amount pay_player map
870	cf::object::player player	1793	cf::object::player player
871	cf::player peaceful	1794	cf::player peaceful
		1795	cf::map trigger
872		1796
873	=cut	1797	=cut
874		1798
875	for (	1799	for (
876	["cf::object" => qw(contr pay_amount pay_player)],	1800	["cf::object" => qw(contr pay_amount pay_player map)],
877	["cf::object::player" => qw(player)],	1801	["cf::object::player" => qw(player)],
878	["cf::player" => qw(peaceful)],	1802	["cf::player" => qw(peaceful)],
		1803	["cf::map" => qw(trigger)],
879	) {	1804	) {
880	no strict 'refs';	1805	no strict 'refs';
881	my ($pkg, @funs) = @$_;	1806	my ($pkg, @funs) = @$_;
882	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1807	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
883	for @funs;	1808	for @funs;
…		…
999		1924
1000	{	1925	{
1001	my $path = cf::localdir . "/database.pst";	1926	my $path = cf::localdir . "/database.pst";
1002		1927
1003	sub db_load() {	1928	sub db_load() {
1004	warn "loading database $path\n";#d# remove later
1005	$DB = stat $path ? Storable::retrieve $path : { };	1929	$DB = stat $path ? Storable::retrieve $path : { };
1006	}	1930	}
1007		1931
1008	my $pid;	1932	my $pid;
1009		1933
1010	sub db_save() {	1934	sub db_save() {
1011	warn "saving database $path\n";#d# remove later
1012	waitpid $pid, 0 if $pid;	1935	waitpid $pid, 0 if $pid;
1013	if (0 == ($pid = fork)) {	1936	if (0 == ($pid = fork)) {
1014	$DB->{_meta}{version} = 1;	1937	$DB->{_meta}{version} = 1;
1015	Storable::nstore $DB, "$path~";	1938	Storable::nstore $DB, "$path~";
1016	rename "$path~", $path;	1939	rename "$path~", $path;
…		…
1023	sub db_sync() {	1946	sub db_sync() {
1024	db_save if $dirty;	1947	db_save if $dirty;
1025	undef $dirty;	1948	undef $dirty;
1026	}	1949	}
1027		1950
1028	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1029	db_sync;	1952	db_sync;
1030	});	1953	});
1031		1954
1032	sub db_dirty() {	1955	sub db_dirty() {
1033	$dirty = 1;	1956	$dirty = 1;
…		…
1047	$DB->{$_[0]} = $_[1];	1970	$DB->{$_[0]} = $_[1];
1048	}	1971	}
1049	db_dirty;	1972	db_dirty;
1050	}	1973	}
1051		1974
1052	attach_global	1975	cf::global->attach (
1053	prio => 10000,	1976	prio => 10000,
1054	on_cleanup => sub {	1977	on_cleanup => sub {
1055	db_sync;	1978	db_sync;
1056	},	1979	},
1057	;	1980	);
1058	}	1981	}
1059		1982
1060	#############################################################################	1983	#############################################################################
1061	# the server's main()	1984	# the server's main()
1062		1985
…		…
1064	open my $fh, "<:utf8", cf::confdir . "/config"	1987	open my $fh, "<:utf8", cf::confdir . "/config"
1065	or return;	1988	or return;
1066		1989
1067	local $/;	1990	local $/;
1068	*CFG = YAML::Syck::Load <$fh>;	1991	*CFG = YAML::Syck::Load <$fh>;
		1992
		1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		1994
		1995	if (exists $CFG{mlockall}) {
		1996	eval {
		1997	$CFG{mlockall} ? &mlockall : &munlockall
		1998	and die "WARNING: m(un)lockall failed: $!\n";
		1999	};
		2000	warn $@ if $@;
		2001	}
1069	}	2002	}
1070		2003
1071	sub main {	2004	sub main {
		2005	# we must not ever block the main coroutine
		2006	local $Coro::idle = sub {
		2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2008	(Coro::unblock_sub {
		2009	Event::one_event;
		2010	})->();
		2011	};
		2012
1072	cfg_load;	2013	cfg_load;
1073	db_load;	2014	db_load;
1074	load_extensions;	2015	load_extensions;
1075	Event::loop;	2016	Event::loop;
1076	}	2017	}
1077		2018
1078	#############################################################################	2019	#############################################################################
1079	# initialisation	2020	# initialisation
1080		2021
1081	sub _perl_reload(&) {	2022	sub reload() {
1082	my ($msg) = @_;	2023	# can/must only be called in main
		2024	if ($Coro::current != $Coro::main) {
		2025	warn "can only reload from main coroutine\n";
		2026	return;
		2027	}
1083		2028
1084	$msg->("reloading...");	2029	warn "reloading...";
		2030
		2031	my $guard = freeze_mainloop;
		2032	cf::emergency_save;
1085		2033
1086	eval {	2034	eval {
		2035	# if anything goes wrong in here, we should simply crash as we already saved
		2036
1087	# cancel all watchers	2037	# cancel all watchers
1088	$_->cancel for Event::all_watchers;	2038	for (Event::all_watchers) {
		2039	$_->cancel if $_->data & WF_AUTOCANCEL;
		2040	}
		2041
		2042	# cancel all extension coros
		2043	$_->cancel for values %EXT_CORO;
		2044	%EXT_CORO = ();
1089		2045
1090	# unload all extensions	2046	# unload all extensions
1091	for (@exts) {	2047	for (@exts) {
1092	$msg->("unloading <$_>");	2048	warn "unloading <$_>";
1093	unload_extension $_;	2049	unload_extension $_;
1094	}	2050	}
1095		2051
1096	# unload all modules loaded from $LIBDIR	2052	# unload all modules loaded from $LIBDIR
1097	while (my ($k, $v) = each %INC) {	2053	while (my ($k, $v) = each %INC) {
1098	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1099		2055
1100	$msg->("removing <$k>");	2056	warn "removing <$k>";
1101	delete $INC{$k};	2057	delete $INC{$k};
1102		2058
1103	$k =~ s/\.pm$//;	2059	$k =~ s/\.pm$//;
1104	$k =~ s/\//::/g;	2060	$k =~ s/\//::/g;
1105		2061
…		…
1110	Symbol::delete_package $k;	2066	Symbol::delete_package $k;
1111	}	2067	}
1112		2068
1113	# sync database to disk	2069	# sync database to disk
1114	cf::db_sync;	2070	cf::db_sync;
		2071	IO::AIO::flush;
1115		2072
1116	# get rid of safe::, as good as possible	2073	# get rid of safe::, as good as possible
1117	Symbol::delete_package "safe::$_"	2074	Symbol::delete_package "safe::$_"
1118	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1119		2076
1120	# remove register_script_function callbacks	2077	# remove register_script_function callbacks
1121	# TODO	2078	# TODO
1122		2079
1123	# unload cf.pm "a bit"	2080	# unload cf.pm "a bit"
…		…
1126	# don't, removes xs symbols, too,	2083	# don't, removes xs symbols, too,
1127	# and global variables created in xs	2084	# and global variables created in xs
1128	#Symbol::delete_package __PACKAGE__;	2085	#Symbol::delete_package __PACKAGE__;
1129		2086
1130	# reload cf.pm	2087	# reload cf.pm
1131	$msg->("reloading cf.pm");	2088	warn "reloading cf.pm";
1132	require cf;	2089	require cf;
		2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1133		2091
1134	# load config and database again	2092	# load config and database again
1135	cf::cfg_load;	2093	cf::cfg_load;
1136	cf::db_load;	2094	cf::db_load;
1137		2095
1138	# load extensions	2096	# load extensions
1139	$msg->("load extensions");	2097	warn "load extensions";
1140	cf::load_extensions;	2098	cf::load_extensions;
1141		2099
1142	# reattach attachments to objects	2100	# reattach attachments to objects
1143	$msg->("reattach");	2101	warn "reattach";
1144	_global_reattach;	2102	_global_reattach;
1145	};	2103	};
1146	$msg->($@) if $@;
1147		2104
1148	$msg->("reloaded");	2105	if ($@) {
		2106	warn $@;
		2107	warn "error while reloading, exiting.";
		2108	exit 1;
		2109	}
		2110
		2111	warn "reloaded successfully";
1149	};	2112	};
1150		2113
1151	sub perl_reload() {	2114	#############################################################################
1152	_perl_reload {	2115
1153	warn $_[0];	2116	unless ($LINK_MAP) {
1154	print "$_[0]\n";	2117	$LINK_MAP = cf::map::new;
1155	};	2118
		2119	$LINK_MAP->width (41);
		2120	$LINK_MAP->height (41);
		2121	$LINK_MAP->alloc;
		2122	$LINK_MAP->path ("{link}");
		2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2125
		2126	# dirty hack because... archetypes are not yet loaded
		2127	Event->timer (
		2128	after => 2,
		2129	cb => sub {
		2130	$_[0]->w->cancel;
		2131
		2132	# provide some exits "home"
		2133	my $exit = cf::object::new "exit";
		2134
		2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2138
		2139	$LINK_MAP->insert ($exit->clone, 19, 19);
		2140	$LINK_MAP->insert ($exit->clone, 19, 20);
		2141	$LINK_MAP->insert ($exit->clone, 19, 21);
		2142	$LINK_MAP->insert ($exit->clone, 20, 19);
		2143	$LINK_MAP->insert ($exit->clone, 20, 21);
		2144	$LINK_MAP->insert ($exit->clone, 21, 19);
		2145	$LINK_MAP->insert ($exit->clone, 21, 20);
		2146	$LINK_MAP->insert ($exit->clone, 21, 21);
		2147
		2148	$exit->destroy;
		2149	});
		2150
		2151	$LINK_MAP->{deny_save} = 1;
		2152	$LINK_MAP->{deny_reset} = 1;
		2153
		2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1156	}	2155	}
1157		2156
1158	register "<global>", __PACKAGE__;	2157	register "<global>", __PACKAGE__;
1159		2158
1160	register_command "perl-reload" => sub {	2159	register_command "reload" => sub {
1161	my ($who, $arg) = @_;	2160	my ($who, $arg) = @_;
1162		2161
1163	if ($who->flag (FLAG_WIZ)) {	2162	if ($who->flag (FLAG_WIZ)) {
1164	_perl_reload {	2163	$who->message ("start of reload.");
1165	warn $_[0];	2164	reload;
1166	$who->message ($_[0]);	2165	$who->message ("end of reload.");
1167	};
1168	}	2166	}
1169	};	2167	};
1170		2168
1171	unshift @INC, $LIBDIR;	2169	unshift @INC, $LIBDIR;
1172		2170
1173	$TICK_WATCHER = Event->timer (	2171	$TICK_WATCHER = Event->timer (
		2172	reentrant => 0,
1174	prio => 1,	2173	prio => 0,
1175	async => 1,
1176	at => $NEXT_TICK || 1,	2174	at => $NEXT_TICK || $TICK,
		2175	data => WF_AUTOCANCEL,
1177	cb => sub {	2176	cb => sub {
1178	cf::server_tick; # one server iteration	2177	cf::server_tick; # one server iteration
1179		2178	$RUNTIME += $TICK;
1180	my $NOW = Event::time;
1181	$NEXT_TICK += $TICK;	2179	$NEXT_TICK += $TICK;
1182		2180
1183	# if we are delayed by four ticks or more, skip them all	2181	# if we are delayed by four ticks or more, skip them all
1184	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1185		2183
1186	$TICK_WATCHER->at ($NEXT_TICK);	2184	$TICK_WATCHER->at ($NEXT_TICK);
1187	$TICK_WATCHER->start;	2185	$TICK_WATCHER->start;
1188	},	2186	},
1189	);	2187	);
1190		2188
1191	IO::AIO::max_poll_time $TICK * 0.2;	2189	IO::AIO::max_poll_time $TICK * 0.2;
1192		2190
		2191	Event->io (
1193	Event->io (fd => IO::AIO::poll_fileno,	2192	fd => IO::AIO::poll_fileno,
1194	poll => 'r',	2193	poll => 'r',
1195	prio => 5,	2194	prio => 5,
		2195	data => WF_AUTOCANCEL,
1196	cb => \&IO::AIO::poll_cb);	2196	cb => \&IO::AIO::poll_cb,
		2197	);
		2198
		2199	Event->timer (
		2200	data => WF_AUTOCANCEL,
		2201	after => 0,
		2202	interval => 10,
		2203	cb => sub {
		2204	(Coro::unblock_sub {
		2205	write_runtime
		2206	or warn "ERROR: unable to write runtime file: $!";
		2207	})->();
		2208	},
		2209	);
		2210
		2211	END { cf::emergency_save }
1197		2212
1198	1	2213	1
1199		2214

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