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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 1.140 by root, Fri Jan 5 20:04:02 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 (Coro::PRIO_MAX); # 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	sub freeze_mainloop {
		227	return unless $TICK_WATCHER->is_active;
		228
		229	my $guard = Coro::guard { $TICK_WATCHER->start };
		230	$TICK_WATCHER->stop;
		231	$guard
		232	}
		233
		234	=item cf::async { BLOCK }
		235
		236	Currently the same as Coro::async_pool, meaning you cannot use
		237	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		238	thing you are allowed to do is call C<prio> on it.
		239
		240	=cut
		241
		242	BEGIN { *async = \&Coro::async_pool }
		243
		244	=item cf::sync_job { BLOCK }
		245
		246	The design of crossfire+ requires that the main coro ($Coro::main) is
		247	always able to handle events or runnable, as crossfire+ is only partly
		248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		249
		250	If it must be done, put the blocking parts into C<sync_job>. This will run
		251	the given BLOCK in another coroutine while waiting for the result. The
		252	server will be frozen during this time, so the block should either finish
		253	fast or be very important.
		254
		255	=cut
		256
		257	sub sync_job(&) {
		258	my ($job) = @_;
		259
		260	if ($Coro::current == $Coro::main) {
		261	# this is the main coro, too bad, we have to block
		262	# till the operation succeeds, freezing the server :/
		263
		264	# TODO: use suspend/resume instead
		265	# (but this is cancel-safe)
		266	my $freeze_guard = freeze_mainloop;
		267
		268	my $busy = 1;
		269	my @res;
		270
		271	(async {
		272	@res = eval { $job->() };
		273	warn $@ if $@;
		274	undef $busy;
		275	})->prio (Coro::PRIO_MAX);
		276
		277	while ($busy) {
		278	unless (Coro::cede) {
		279	Coro::nready ? Event::one_event 0 : Event::one_event;
		280	Coro::cede_notself unless Coro::cede;
		281	}
		282	}
		283
		284	wantarray ? @res : $res[0]
		285	} else {
		286	# we are in another coroutine, how wonderful, everything just works
		287
		288	$job->()
		289	}
		290	}
		291
		292	=item $coro = cf::async_ext { BLOCK }
		293
		294	Like async, but this coro is automcatially being canceled when the
		295	extension calling this is being unloaded.
		296
		297	=cut
		298
		299	sub async_ext(&) {
		300	my $cb = shift;
		301
		302	my $coro = &Coro::async ($cb);
		303
		304	$coro->on_destroy (sub {
		305	delete $EXT_CORO{$coro+0};
		306	});
		307	$EXT_CORO{$coro+0} = $coro;
		308
		309	$coro
		310	}
		311
		312	sub write_runtime {
		313	my $runtime = cf::localdir . "/runtime";
		314
		315	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		316	or return;
		317
		318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		320	and return;
		321
		322	aio_fsync $fh
		323	and return;
		324
		325	close $fh
		326	or return;
		327
		328	aio_rename "$runtime~", $runtime
		329	and return;
		330
		331	1
		332	}
		333
129	=back	334	=back
130		335
131	=cut	336	=cut
132		337
133	#############################################################################	338	#############################################################################
134		339
135	=head2 EVENTS AND OBJECT ATTACHMENTS	340	package cf::path;
		341
		342	sub new {
		343	my ($class, $path, $base) = @_;
		344
		345	$path = $path->as_string if ref $path;
		346
		347	my $self = bless { }, $class;
		348
		349	# {... are special paths that are not touched
		350	# ?xxx/... are special absolute paths
		351	# ?random/... random maps
		352	# /! non-realised random map exit
		353	# /... normal maps
		354	# ~/... per-player maps without a specific player (DO NOT USE)
		355	# ~user/... per-player map of a specific user
		356
		357	if ($path =~ /^{/) {
		358	# fine as it is
		359	} elsif ($path =~ s{^\?random/}{}) {
		360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		361	$self->{random} = cf::from_json $data;
		362	} else {
		363	if ($path =~ s{^~([^/]+)?}{}) {
		364	$self->{user_rel} = 1;
		365
		366	if (defined $1) {
		367	$self->{user} = $1;
		368	} elsif ($base =~ m{^~([^/]+)/}) {
		369	$self->{user} = $1;
		370	} else {
		371	warn "cannot resolve user-relative path without user <$path,$base>\n";
		372	}
		373	} elsif ($path =~ /^\//) {
		374	# already absolute
		375	} else {
		376	$base =~ s{[^/]+/?$}{};
		377	return $class->new ("$base/$path");
		378	}
		379
		380	for ($path) {
		381	redo if s{/\.?/}{/};
		382	redo if s{/[^/]+/\.\./}{/};
		383	}
		384	}
		385
		386	$self->{path} = $path;
		387
		388	$self
		389	}
		390
		391	# the name / primary key / in-game path
		392	sub as_string {
		393	my ($self) = @_;
		394
		395	$self->{user_rel} ? "~$self->{user}$self->{path}"
		396	: $self->{random} ? "?random/$self->{path}"
		397	: $self->{path}
		398	}
		399
		400	# the displayed name, this is a one way mapping
		401	sub visible_name {
		402	my ($self) = @_;
		403
		404	# if (my $rmp = $self->{random}) {
		405	# # todo: be more intelligent about this
		406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		407	# } else {
		408	$self->as_string
		409	# }
		410	}
		411
		412	# escape the /'s in the path
		413	sub _escaped_path {
		414	# ∕ is U+2215
		415	(my $path = $_[0]{path}) =~ s/\//∕/g;
		416	$path
		417	}
		418
		419	# the original (read-only) location
		420	sub load_path {
		421	my ($self) = @_;
		422
		423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		424	}
		425
		426	# the temporary/swap location
		427	sub save_path {
		428	my ($self) = @_;
		429
		430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		433	}
		434
		435	# the unique path, might be eq to save_path
		436	sub uniq_path {
		437	my ($self) = @_;
		438
		439	$self->{user_rel} || $self->{random}
		440	? undef
		441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		442	}
		443
		444	# return random map parameters, or undef
		445	sub random_map_params {
		446	my ($self) = @_;
		447
		448	$self->{random}
		449	}
		450
		451	# this is somewhat ugly, but style maps do need special treatment
		452	sub is_style_map {
		453	$_[0]{path} =~ m{^/styles/}
		454	}
		455
		456	package cf;
		457
		458	#############################################################################
		459
		460	=head2 ATTACHABLE OBJECTS
		461
		462	Many objects in crossfire are so-called attachable objects. That means you can
		463	attach callbacks/event handlers (a collection of which is called an "attachment")
		464	to it. All such attachable objects support the following methods.
		465
		466	In the following description, CLASS can be any of C<global>, C<object>
		467	C<player>, C<client> or C<map> (i.e. the attachable objects in
		468	crossfire+).
136		469
137	=over 4	470	=over 4
138		471
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...)	472	=item $attachable->attach ($attachment, key => $value...)
152		473
153	=item $map->detach ($attachment)	474	=item $attachable->detach ($attachment)
154		475
155	Attach/detach a pre-registered attachment to a map.	476	Attach/detach a pre-registered attachment to a specific object and give it
		477	the specified key/value pairs as arguments.
156		478
157	=item $bool = $object->attached ($name)	479	Example, attach a minesweeper attachment to the given object, making it a
		480	10x10 minesweeper game:
158		481
159	=item $bool = $player->attached ($name)	482	$obj->attach (minesweeper => width => 10, height => 10);
160		483
161	=item $bool = $map->attached ($name)	484	=item $bool = $attachable->attached ($name)
162		485
163	Checks wether the named attachment is currently attached to the object.	486	Checks wether the named attachment is currently attached to the object.
164		487
165	=item cf::attach_global ...	488	=item cf::CLASS->attach ...
166		489
167	Attach handlers for global events.	490	=item cf::CLASS->detach ...
168		491
169	This and all following C<attach_*>-functions expect any number of the	492	Define an anonymous attachment and attach it to all objects of the given
170	following handler/hook descriptions:	493	CLASS. See the next function for an explanation of its arguments.
		494
		495	You can attach to global events by using the C<cf::global> class.
		496
		497	Example, log all player logins:
		498
		499	cf::player->attach (
		500	on_login => sub {
		501	my ($pl) = @_;
		502	...
		503	},
		504	);
		505
		506	Example, attach to the jeweler skill:
		507
		508	cf::object->attach (
		509	type => cf::SKILL,
		510	subtype => cf::SK_JEWELER,
		511	on_use_skill => sub {
		512	my ($sk, $ob, $part, $dir, $msg) = @_;
		513	...
		514	},
		515	);
		516
		517	=item cf::CLASS::attachment $name, ...
		518
		519	Register an attachment by C<$name> through which attachable objects of the
		520	given CLASS can refer to this attachment.
		521
		522	Some classes such as crossfire maps and objects can specify attachments
		523	that are attached at load/instantiate time, thus the need for a name.
		524
		525	These calls expect any number of the following handler/hook descriptions:
171		526
172	=over 4	527	=over 4
173		528
174	=item prio => $number	529	=item prio => $number
175		530
…		…
177	by another C<prio> setting). Lower priority handlers get executed	532	by another C<prio> setting). Lower priority handlers get executed
178	earlier. The default priority is C<0>, and many built-in handlers are	533	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	534	registered at priority C<-1000>, so lower priorities should not be used
180	unless you know what you are doing.	535	unless you know what you are doing.
181		536
		537	=item type => $type
		538
		539	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		540	given type of objects only (the additional parameter C<subtype> can be
		541	used to further limit to the given subtype).
		542
182	=item on_I<event> => \&cb	543	=item on_I<event> => \&cb
183		544
184	Call the given code reference whenever the named event happens (event is	545	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	546	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	547	handlers are recognised generally depends on the type of object these
…		…
195	package and register them. Only handlers for eevents supported by the	556	package and register them. Only handlers for eevents supported by the
196	object/class are recognised.	557	object/class are recognised.
197		558
198	=back	559	=back
199		560
200	=item cf::attach_to_type $object_type, $subtype, ...	561	Example, define an attachment called "sockpuppet" that calls the given
		562	event handler when a monster attacks:
201		563
202	Attach handlers for a specific object type (e.g. TRANSPORT) and	564	cf::object::attachment sockpuppet =>
203	subtype. If C<$subtype> is zero or undef, matches all objects of the given	565	on_skill_attack => sub {
204	type.	566	my ($self, $victim) = @_;
205		567	...
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	}	568	}
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	569	}
427	}
428		570
429	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	571	=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		572
455	Just because you have a perl object does not mean that the corresponding	573	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	574	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	575	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	576	can be used to test for existence of the C object part without causing an
459	exception.	577	exception.
460		578
		579	=cut
		580
		581	# the following variables are defined in .xs and must not be re-created
		582	our @CB_GLOBAL = (); # registry for all global events
		583	our @CB_ATTACHABLE = (); # registry for all attachables
		584	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		585	our @CB_PLAYER = ();
		586	our @CB_CLIENT = ();
		587	our @CB_TYPE = (); # registry for type (cf-object class) based events
		588	our @CB_MAP = ();
		589
		590	my %attachment;
		591
		592	sub _attach_cb($$$$) {
		593	my ($registry, $event, $prio, $cb) = @_;
		594
		595	use sort 'stable';
		596
		597	$cb = [$prio, $cb];
		598
		599	@{$registry->[$event]} = sort
		600	{ $a->[0] cmp $b->[0] }
		601	@{$registry->[$event] || []}, $cb;
		602	}
		603
		604	# hack
		605	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		606
		607	# attach handles attaching event callbacks
		608	# the only thing the caller has to do is pass the correct
		609	# registry (== where the callback attaches to).
		610	sub _attach {
		611	my ($registry, $klass, @arg) = @_;
		612
		613	my $object_type;
		614	my $prio = 0;
		615	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		616
		617	#TODO: get rid of this hack
		618	if ($attachable_klass{$klass}) {
		619	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		620	}
		621
		622	while (@arg) {
		623	my $type = shift @arg;
		624
		625	if ($type eq "prio") {
		626	$prio = shift @arg;
		627
		628	} elsif ($type eq "type") {
		629	$object_type = shift @arg;
		630	$registry = $CB_TYPE[$object_type] ||= [];
		631
		632	} elsif ($type eq "subtype") {
		633	defined $object_type or Carp::croak "subtype specified without type";
		634	my $object_subtype = shift @arg;
		635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		636
		637	} elsif ($type eq "package") {
		638	my $pkg = shift @arg;
		639
		640	while (my ($name, $id) = each %cb_id) {
		641	if (my $cb = $pkg->can ($name)) {
		642	_attach_cb $registry, $id, $prio, $cb;
		643	}
		644	}
		645
		646	} elsif (exists $cb_id{$type}) {
		647	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		648
		649	} elsif (ref $type) {
		650	warn "attaching objects not supported, ignoring.\n";
		651
		652	} else {
		653	shift @arg;
		654	warn "attach argument '$type' not supported, ignoring.\n";
		655	}
		656	}
		657	}
		658
		659	sub _object_attach {
		660	my ($obj, $name, %arg) = @_;
		661
		662	return if exists $obj->{_attachment}{$name};
		663
		664	if (my $attach = $attachment{$name}) {
		665	my $registry = $obj->registry;
		666
		667	for (@$attach) {
		668	my ($klass, @attach) = @$_;
		669	_attach $registry, $klass, @attach;
		670	}
		671
		672	$obj->{$name} = \%arg;
		673	} else {
		674	warn "object uses attachment '$name' that is not available, postponing.\n";
		675	}
		676
		677	$obj->{_attachment}{$name} = undef;
		678	}
		679
		680	sub cf::attachable::attach {
		681	if (ref $_[0]) {
		682	_object_attach @_;
		683	} else {
		684	_attach shift->_attach_registry, @_;
		685	}
		686	};
		687
		688	# all those should be optimised
		689	sub cf::attachable::detach {
		690	my ($obj, $name) = @_;
		691
		692	if (ref $obj) {
		693	delete $obj->{_attachment}{$name};
		694	reattach ($obj);
		695	} else {
		696	Carp::croak "cannot, currently, detach class attachments";
		697	}
		698	};
		699
		700	sub cf::attachable::attached {
		701	my ($obj, $name) = @_;
		702
		703	exists $obj->{_attachment}{$name}
		704	}
		705
		706	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		707	eval "#line " . __LINE__ . " 'cf.pm'
		708	sub cf::\L$klass\E::_attach_registry {
		709	(\\\@CB_$klass, KLASS_$klass)
		710	}
		711
		712	sub cf::\L$klass\E::attachment {
		713	my \$name = shift;
		714
		715	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		716	}
		717	";
		718	die if $@;
		719	}
		720
		721	our $override;
		722	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		723
		724	sub override {
		725	$override = 1;
		726	@invoke_results = ();
		727	}
		728
		729	sub do_invoke {
		730	my $event = shift;
		731	my $callbacks = shift;
		732
		733	@invoke_results = ();
		734
		735	local $override;
		736
		737	for (@$callbacks) {
		738	eval { &{$_->[1]} };
		739
		740	if ($@) {
		741	warn "$@";
		742	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		743	override;
		744	}
		745
		746	return 1 if $override;
		747	}
		748
		749	0
		750	}
		751
		752	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		753
		754	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		755
		756	Generate an object-specific event with the given arguments.
		757
		758	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		759	removed in future versions), and there is no public API to access override
		760	results (if you must, access C<@cf::invoke_results> directly).
		761
461	=back	762	=back
462		763
463	=cut	764	=cut
464
465	*cf::object::valid =
466	*cf::player::valid =
467	*cf::map::valid = \&cf::_valid;
468		765
469	#############################################################################	766	#############################################################################
470	# object support	767	# object support
471		768
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 {	769	sub reattach {
		770	# basically do the same as instantiate, without calling instantiate
486	my ($obj) = @_;	771	my ($obj) = @_;
		772
487	my $registry = $obj->registry;	773	my $registry = $obj->registry;
488		774
489	@$registry = ();	775	@$registry = ();
490		776
491	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	777	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
492		778
493	for my $name (keys %{ $obj->{_attachment} || {} }) {	779	for my $name (keys %{ $obj->{_attachment} || {} }) {
494	if (my $attach = $attachment{$name}) {	780	if (my $attach = $attachment{$name}) {
495	for (@$attach) {	781	for (@$attach) {
496	my ($klass, @attach) = @$_;	782	my ($klass, @attach) = @$_;
497	_attach @$registry, $klass, @attach;	783	_attach $registry, $klass, @attach;
498	}	784	}
499	} else {	785	} else {
500	warn "object uses attachment '$name' that is not available, postponing.\n";	786	warn "object uses attachment '$name' that is not available, postponing.\n";
501	}	787	}
502	}	788	}
503	}	789	}
504		790
505	sub object_freezer_save {	791	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	$$rdata . Dumper $objs
542	}
543
544	sub object_thawer_load {
545	my ($filename) = @_;
546
547	local $/;
548
549	my $av;
550
551	#TODO: use sysread etc.
552	if (open my $data, "<:raw:perlio", $filename) {
553	$data = <$data>;
554	if (open my $pst, "<:raw:perlio", "$filename.pst") {
555	$av = eval { (Storable::thaw <$pst>)->{objs} };
556	}
557	return ($data, $av);
558	}
559
560	()
561	}
562
563	attach_to_objects
564	prio => -1000000,	792	prio => -1000000,
		793	on_instantiate => sub {
		794	my ($obj, $data) = @_;
		795
		796	$data = from_json $data;
		797
		798	for (@$data) {
		799	my ($name, $args) = @$_;
		800
		801	$obj->attach ($name, %{$args || {} });
		802	}
		803	},
		804	on_reattach => \&reattach,
565	on_clone => sub {	805	on_clone => sub {
566	my ($src, $dst) = @_;	806	my ($src, $dst) = @_;
567		807
568	@{$dst->registry} = @{$src->registry};	808	@{$dst->registry} = @{$src->registry};
569		809
570	%$dst = %$src;	810	%$dst = %$src;
571		811
572	%{$dst->{_attachment}} = %{$src->{_attachment}}	812	%{$dst->{_attachment}} = %{$src->{_attachment}}
573	if exists $src->{_attachment};	813	if exists $src->{_attachment};
574	},	814	},
575	;	815	);
		816
		817	sub object_freezer_save {
		818	my ($filename, $rdata, $objs) = @_;
		819
		820	sync_job {
		821	if (length $$rdata) {
		822	warn sprintf "saving %s (%d,%d)\n",
		823	$filename, length $$rdata, scalar @$objs;
		824
		825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		826	chmod SAVE_MODE, $fh;
		827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		828	aio_fsync $fh;
		829	close $fh;
		830
		831	if (@$objs) {
		832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		833	chmod SAVE_MODE, $fh;
		834	my $data = Storable::nfreeze { version => 1, objs => $objs };
		835	aio_write $fh, 0, (length $data), $data, 0;
		836	aio_fsync $fh;
		837	close $fh;
		838	aio_rename "$filename.pst~", "$filename.pst";
		839	}
		840	} else {
		841	aio_unlink "$filename.pst";
		842	}
		843
		844	aio_rename "$filename~", $filename;
		845	} else {
		846	warn "FATAL: $filename~: $!\n";
		847	}
		848	} else {
		849	aio_unlink $filename;
		850	aio_unlink "$filename.pst";
		851	}
		852	}
		853	}
		854
		855	sub object_freezer_as_string {
		856	my ($rdata, $objs) = @_;
		857
		858	use Data::Dumper;
		859
		860	$$rdata . Dumper $objs
		861	}
		862
		863	sub object_thawer_load {
		864	my ($filename) = @_;
		865
		866	my ($data, $av);
		867
		868	(aio_load $filename, $data) >= 0
		869	or return;
		870
		871	unless (aio_stat "$filename.pst") {
		872	(aio_load "$filename.pst", $av) >= 0
		873	or return;
		874	$av = eval { (Storable::thaw $av)->{objs} };
		875	}
		876
		877	warn sprintf "loading %s (%d)\n",
		878	$filename, length $data, scalar @{$av || []};#d#
		879	return ($data, $av);
		880	}
576		881
577	#############################################################################	882	#############################################################################
578	# command handling &c	883	# command handling &c
579		884
580	=item cf::register_command $name => \&callback($ob,$args);	885	=item cf::register_command $name => \&callback($ob,$args);
…		…
609	#warn "registering extcmd '$name' to '$caller'";	914	#warn "registering extcmd '$name' to '$caller'";
610		915
611	$EXTCMD{$name} = [$cb, $caller];	916	$EXTCMD{$name} = [$cb, $caller];
612	}	917	}
613		918
614	attach_to_players	919	cf::player->attach (
615	on_command => sub {	920	on_command => sub {
616	my ($pl, $name, $params) = @_;	921	my ($pl, $name, $params) = @_;
617		922
618	my $cb = $COMMAND{$name}	923	my $cb = $COMMAND{$name}
619	or return;	924	or return;
…		…
639	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
640	}	945	}
641		946
642	cf::override;	947	cf::override;
643	},	948	},
644	;	949	);
645		950
646	sub register {	951	sub register {
647	my ($base, $pkg) = @_;	952	my ($base, $pkg) = @_;
648		953
649	#TODO	954	#TODO
…		…
718		1023
719	Symbol::delete_package $pkg;	1024	Symbol::delete_package $pkg;
720	}	1025	}
721		1026
722	sub load_extensions {	1027	sub load_extensions {
723	my $LIBDIR = maps_directory "perl";
724
725	for my $ext (<$LIBDIR/*.ext>) {	1028	for my $ext (<$LIBDIR/*.ext>) {
726	next unless -r $ext;	1029	next unless -r $ext;
727	eval {	1030	eval {
728	load_extension $ext;	1031	load_extension $ext;
729	1	1032	1
…		…
741	defined $path or return;	1044	defined $path or return;
742		1045
743	unlink "$path.pst";	1046	unlink "$path.pst";
744	};	1047	};
745		1048
746	attach_to_maps prio => -10000, package => cf::mapsupport::;	1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
747		1050
748	#############################################################################	1051	#############################################################################
749	# load/save perl data associated with player->ob objects	1052	# load/save perl data associated with player->ob objects
750		1053
751	sub all_objects(@) {	1054	sub all_objects(@) {
752	@_, map all_objects ($_->inv), @_	1055	@_, map all_objects ($_->inv), @_
753	}	1056	}
754		1057
755	# TODO: compatibility cruft, remove when no longer needed	1058	# TODO: compatibility cruft, remove when no longer needed
756	attach_to_players	1059	cf::player->attach (
757	on_load => sub {	1060	on_load => sub {
758	my ($pl, $path) = @_;	1061	my ($pl, $path) = @_;
759		1062
760	for my $o (all_objects $pl->ob) {	1063	for my $o (all_objects $pl->ob) {
761	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
763		1066
764	%$o = %{ Storable::thaw pack "H*", $value };	1067	%$o = %{ Storable::thaw pack "H*", $value };
765	}	1068	}
766	}	1069	}
767	},	1070	},
768	;	1071	);
769		1072
770	#############################################################################	1073	#############################################################################
771		1074
772	=head2 CORE EXTENSIONS	1075	=head2 CORE EXTENSIONS
773		1076
774	Functions and methods that extend core crossfire objects.	1077	Functions and methods that extend core crossfire objects.
		1078
		1079	=head3 cf::player
775		1080
776	=over 4	1081	=over 4
777		1082
778	=item cf::player::exists $login	1083	=item cf::player::exists $login
779		1084
…		…
784	sub cf::player::exists($) {	1089	sub cf::player::exists($) {
785	cf::player::find $_[0]	1090	cf::player::find $_[0]
786	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
787	}	1092	}
788		1093
		1094	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1095
		1096	Sends an ext reply to the player.
		1097
		1098	=cut
		1099
		1100	sub cf::player::ext_reply($$$%) {
		1101	my ($self, $id, %msg) = @_;
		1102
		1103	$msg{msgid} = $id;
		1104
		1105	$self->send ("ext " . to_json \%msg);
		1106	}
		1107
		1108	=back
		1109
		1110
		1111	=head3 cf::map
		1112
		1113	=over 4
		1114
		1115	=cut
		1116
		1117	package cf::map;
		1118
		1119	use Fcntl;
		1120	use Coro::AIO;
		1121
		1122	our $MAX_RESET = 3600;
		1123	our $DEFAULT_RESET = 3000;
		1124
		1125	sub generate_random_map {
		1126	my ($path, $rmp) = @_;
		1127
		1128	# mit "rum" bekleckern, nicht
		1129	cf::map::_create_random_map
		1130	$path,
		1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1134	$rmp->{exit_on_final_map},
		1135	$rmp->{xsize}, $rmp->{ysize},
		1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1141	(cf::region::find $rmp->{region})
		1142	}
		1143
		1144	# and all this just because we cannot iterate over
		1145	# all maps in C++...
		1146	sub change_all_map_light {
		1147	my ($change) = @_;
		1148
		1149	$_->change_map_light ($change)
		1150	for grep $_->outdoor, values %cf::MAP;
		1151	}
		1152
		1153	sub try_load_header($) {
		1154	my ($path) = @_;
		1155
		1156	utf8::encode $path;
		1157	aio_open $path, O_RDONLY, 0
		1158	or return;
		1159
		1160	my $map = cf::map::new
		1161	or return;
		1162
		1163	# for better error messages only, will be overwritten
		1164	$map->path ($path);
		1165
		1166	$map->load_header ($path)
		1167	or return;
		1168
		1169	$map->{load_path} = $path;
		1170
		1171	$map
		1172	}
		1173
		1174	sub find;
		1175	sub find {
		1176	my ($path, $origin) = @_;
		1177
		1178	#warn "find<$path,$origin>\n";#d#
		1179
		1180	$path = new cf::path $path, $origin && $origin->path;
		1181	my $key = $path->as_string;
		1182
		1183	cf::lock_wait "map_find:$key";
		1184
		1185	$cf::MAP{$key} || do {
		1186	my $guard = cf::lock_acquire "map_find:$key";
		1187
		1188	# do it the slow way
		1189	my $map = try_load_header $path->save_path;
		1190
		1191	Coro::cede;
		1192
		1193	if ($map) {
		1194	$map->last_access ((delete $map->{last_access})
		1195	|| $cf::RUNTIME); #d#
		1196	# safety
		1197	$map->{instantiate_time} = $cf::RUNTIME
		1198	if $map->{instantiate_time} > $cf::RUNTIME;
		1199	} else {
		1200	if (my $rmp = $path->random_map_params) {
		1201	$map = generate_random_map $key, $rmp;
		1202	} else {
		1203	$map = try_load_header $path->load_path;
		1204	}
		1205
		1206	$map or return;
		1207
		1208	$map->{load_original} = 1;
		1209	$map->{instantiate_time} = $cf::RUNTIME;
		1210	$map->last_access ($cf::RUNTIME);
		1211	$map->instantiate;
		1212
		1213	# per-player maps become, after loading, normal maps
		1214	$map->per_player (0) if $path->{user_rel};
		1215	}
		1216
		1217	$map->path ($key);
		1218	$map->{path} = $path;
		1219	$map->{last_save} = $cf::RUNTIME;
		1220
		1221	Coro::cede;
		1222
		1223	if ($map->should_reset) {
		1224	$map->reset;
		1225	undef $guard;
		1226	$map = find $path
		1227	or return;
		1228	}
		1229
		1230	$cf::MAP{$key} = $map
		1231	}
		1232	}
		1233
		1234	sub load {
		1235	my ($self) = @_;
		1236
		1237	my $path = $self->{path};
		1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1239
		1240	return if $self->in_memory != cf::MAP_SWAPPED;
		1241
		1242	$self->in_memory (cf::MAP_LOADING);
		1243
		1244	$self->alloc;
		1245	$self->load_objects ($self->{load_path}, 1)
		1246	or return;
		1247
		1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1249	if delete $self->{load_original};
		1250
		1251	if (my $uniq = $path->uniq_path) {
		1252	utf8::encode $uniq;
		1253	if (aio_open $uniq, O_RDONLY, 0) {
		1254	$self->clear_unique_items;
		1255	$self->load_objects ($uniq, 0);
		1256	}
		1257	}
		1258
		1259	Coro::cede;
		1260
		1261	# now do the right thing for maps
		1262	$self->link_multipart_objects;
		1263
		1264	if ($self->{path}->is_style_map) {
		1265	$self->{deny_save} = 1;
		1266	$self->{deny_reset} = 1;
		1267	} else {
		1268	$self->fix_auto_apply;
		1269	$self->decay_objects;
		1270	$self->update_buttons;
		1271	$self->set_darkness_map;
		1272	$self->difficulty ($self->estimate_difficulty)
		1273	unless $self->difficulty;
		1274	$self->activate;
		1275	}
		1276
		1277	Coro::cede;
		1278
		1279	$self->in_memory (cf::MAP_IN_MEMORY);
		1280	}
		1281
		1282	sub find_sync {
		1283	my ($path, $origin) = @_;
		1284
		1285	cf::sync_job { cf::map::find $path, $origin }
		1286	}
		1287
		1288	sub do_load_sync {
		1289	my ($map) = @_;
		1290
		1291	cf::sync_job { $map->load };
		1292	}
		1293
		1294	sub save {
		1295	my ($self) = @_;
		1296
		1297	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1298
		1299	$self->{last_save} = $cf::RUNTIME;
		1300
		1301	return unless $self->dirty;
		1302
		1303	my $save = $self->{path}->save_path; utf8::encode $save;
		1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1305
		1306	$self->{load_path} = $save;
		1307
		1308	return if $self->{deny_save};
		1309
		1310	local $self->{last_access} = $self->last_access;#d#
		1311
		1312	if ($uniq) {
		1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1314	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1315	} else {
		1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1317	}
		1318	}
		1319
		1320	sub swap_out {
		1321	my ($self) = @_;
		1322
		1323	# save first because save cedes
		1324	$self->save;
		1325
		1326	my $lock = cf::lock_acquire "map_data:" . $self->path;
		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	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1380
		1381	return if $self->players;
		1382	return if $self->{path}{user_rel};#d#
		1383
		1384	warn "resetting map ", $self->path;#d#
		1385
		1386	delete $cf::MAP{$self->path};
		1387
		1388	$_->clear_links_to ($self) for values %cf::MAP;
		1389
		1390	$self->unlink_save;
		1391	$self->destroy;
		1392	}
		1393
		1394	my $nuke_counter = "aaaa";
		1395
		1396	sub nuke {
		1397	my ($self) = @_;
		1398
		1399	$self->{deny_save} = 1;
		1400	$self->reset_timeout (1);
		1401	$self->rename ("{nuke}/" . ($nuke_counter++));
		1402	$self->reset; # polite request, might not happen
		1403	}
		1404
		1405	sub customise_for {
		1406	my ($map, $ob) = @_;
		1407
		1408	if ($map->per_player) {
		1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1410	}
		1411
		1412	$map
		1413	}
		1414
		1415	sub emergency_save {
		1416	my $freeze_guard = cf::freeze_mainloop;
		1417
		1418	warn "enter emergency map save\n";
		1419
		1420	cf::sync_job {
		1421	warn "begin emergency map save\n";
		1422	$_->save for values %cf::MAP;
		1423	};
		1424
		1425	warn "end emergency map save\n";
		1426	}
		1427
		1428	package cf;
		1429
		1430	=back
		1431
		1432
		1433	=head3 cf::object::player
		1434
		1435	=over 4
		1436
789	=item $player_object->reply ($npc, $msg[, $flags])	1437	=item $player_object->reply ($npc, $msg[, $flags])
790		1438
791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1439	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	1440	can be C<undef>. Does the right thing when the player is currently in a
793	dialogue with the given NPC character.	1441	dialogue with the given NPC character.
794		1442
795	=cut	1443	=cut
796		1444
797	# rough implementation of a future "reply" method that works	1445	# rough implementation of a future "reply" method that works
798	# with dialog boxes.	1446	# with dialog boxes.
		1447	#TODO: the first argument must go, split into a $npc->reply_to ( method
799	sub cf::object::player::reply($$$;$) {	1448	sub cf::object::player::reply($$$;$) {
800	my ($self, $npc, $msg, $flags) = @_;	1449	my ($self, $npc, $msg, $flags) = @_;
801		1450
802	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
803		1452
…		…
807	$msg = $npc->name . " says: $msg" if $npc;	1456	$msg = $npc->name . " says: $msg" if $npc;
808	$self->message ($msg, $flags);	1457	$self->message ($msg, $flags);
809	}	1458	}
810	}	1459	}
811		1460
812	=item $player->ext_reply ($msgid, $msgtype, %msg)
813
814	Sends an ext reply to the player.
815
816	=cut
817
818	sub cf::player::ext_reply($$$%) {
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")	1461	=item $player_object->may ("access")
827		1462
828	Returns wether the given player is authorized to access resource "access"	1463	Returns wether the given player is authorized to access resource "access"
829	(e.g. "command_wizcast").	1464	(e.g. "command_wizcast").
830		1465
…		…
837	(ref $cf::CFG{"may_$access"}	1472	(ref $cf::CFG{"may_$access"}
838	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1473	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
839	: $cf::CFG{"may_$access"})	1474	: $cf::CFG{"may_$access"})
840	}	1475	}
841		1476
842	=cut	1477	=item $player_object->enter_link
843		1478
844	#############################################################################	1479	Freezes the player and moves him/her to a special map (C<{link}>).
		1480
		1481	The player should be reaosnably safe there for short amounts of time. You
		1482	I<MUST> call C<leave_link> as soon as possible, though.
		1483
		1484	=item $player_object->leave_link ($map, $x, $y)
		1485
		1486	Moves the player out of the specila link map onto the given map. If the
		1487	map is not valid (or omitted), the player will be moved back to the
		1488	location he/she was before the call to C<enter_link>, or, if that fails,
		1489	to the emergency map position.
		1490
		1491	Might block.
		1492
		1493	=cut
		1494
		1495	sub cf::object::player::enter_link {
		1496	my ($self) = @_;
		1497
		1498	$self->deactivate_recursive;
		1499
		1500	return if $self->map == $LINK_MAP;
		1501
		1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1503	if $self->map;
		1504
		1505	$self->enter_map ($LINK_MAP, 20, 20);
		1506	}
		1507
		1508	sub cf::object::player::leave_link {
		1509	my ($self, $map, $x, $y) = @_;
		1510
		1511	my $link_pos = delete $self->{_link_pos};
		1512
		1513	unless ($map) {
		1514	# restore original map position
		1515	($map, $x, $y) = @{ $link_pos || [] };
		1516	$map = cf::map::find $map;
		1517
		1518	unless ($map) {
		1519	($map, $x, $y) = @$EMERGENCY_POSITION;
		1520	$map = cf::map::find $map
		1521	or die "FATAL: cannot load emergency map\n";
		1522	}
		1523	}
		1524
		1525	($x, $y) = (-1, -1)
		1526	unless (defined $x) && (defined $y);
		1527
		1528	# use -1 or undef as default coordinates, not 0, 0
		1529	($x, $y) = ($map->enter_x, $map->enter_y)
		1530	if $x <=0 && $y <= 0;
		1531
		1532	$map->load;
		1533
		1534	$self->activate_recursive;
		1535	$self->enter_map ($map, $x, $y);
		1536	}
		1537
		1538	cf::player->attach (
		1539	on_logout => sub {
		1540	my ($pl) = @_;
		1541
		1542	# abort map switching before logout
		1543	if ($pl->ob->{_link_pos}) {
		1544	cf::sync_job {
		1545	$pl->ob->leave_link
		1546	};
		1547	}
		1548	},
		1549	on_login => sub {
		1550	my ($pl) = @_;
		1551
		1552	# try to abort aborted map switching on player login :)
		1553	# should happen only on crashes
		1554	if ($pl->ob->{_link_pos}) {
		1555
		1556	$pl->ob->enter_link;
		1557	(async {
		1558	# we need this sleep as the login has a concurrent enter_exit running
		1559	# and this sleep increases chances of the player not ending up in scorn
		1560	$pl->ob->reply (undef,
		1561	"There was an internal problem at your last logout, "
		1562	. "the server will try to bring you to your intended destination in a second.",
		1563	cf::NDI_RED);
		1564	Coro::Timer::sleep 1;
		1565	$pl->ob->leave_link;
		1566	})->prio (2);
		1567	}
		1568	},
		1569	);
		1570
		1571	=item $player_object->goto ($path, $x, $y)
		1572
		1573	=cut
		1574
		1575	sub cf::object::player::goto {
		1576	my ($self, $path, $x, $y) = @_;
		1577
		1578	$self->enter_link;
		1579
		1580	(async {
		1581	$path = new cf::path $path;
		1582
		1583	my $map = cf::map::find $path->as_string;
		1584	$map = $map->customise_for ($self) if $map;
		1585
		1586	# warn "entering ", $map->path, " at ($x, $y)\n"
		1587	# if $map;
		1588
		1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1590
		1591	$self->leave_link ($map, $x, $y);
		1592	})->prio (1);
		1593	}
		1594
		1595	=item $player_object->enter_exit ($exit_object)
		1596
		1597	=cut
		1598
		1599	sub parse_random_map_params {
		1600	my ($spec) = @_;
		1601
		1602	my $rmp = { # defaults
		1603	xsize => 10,
		1604	ysize => 10,
		1605	};
		1606
		1607	for (split /\n/, $spec) {
		1608	my ($k, $v) = split /\s+/, $_, 2;
		1609
		1610	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1611	}
		1612
		1613	$rmp
		1614	}
		1615
		1616	sub prepare_random_map {
		1617	my ($exit) = @_;
		1618
		1619	# all this does is basically replace the /! path by
		1620	# a new random map path (?random/...) with a seed
		1621	# that depends on the exit object
		1622
		1623	my $rmp = parse_random_map_params $exit->msg;
		1624
		1625	if ($exit->map) {
		1626	$rmp->{region} = $exit->map->region_name;
		1627	$rmp->{origin_map} = $exit->map->path;
		1628	$rmp->{origin_x} = $exit->x;
		1629	$rmp->{origin_y} = $exit->y;
		1630	}
		1631
		1632	$rmp->{random_seed} ||= $exit->random_seed;
		1633
		1634	my $data = cf::to_json $rmp;
		1635	my $md5 = Digest::MD5::md5_hex $data;
		1636
		1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1638	aio_write $fh, 0, (length $data), $data, 0;
		1639
		1640	$exit->slaying ("?random/$md5");
		1641	$exit->msg (undef);
		1642	}
		1643	}
		1644
		1645	sub cf::object::player::enter_exit {
		1646	my ($self, $exit) = @_;
		1647
		1648	return unless $self->type == cf::PLAYER;
		1649
		1650	$self->enter_link;
		1651
		1652	(async {
		1653	$self->deactivate_recursive; # just to be sure
		1654	unless (eval {
		1655	prepare_random_map $exit
		1656	if $exit->slaying eq "/!";
		1657
		1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1660
		1661	1;
		1662	}) {
		1663	$self->message ("Something went wrong deep within the crossfire server. "
		1664	. "I'll try to bring you back to the map you were before. "
		1665	. "Please report this to the dungeon master",
		1666	cf::NDI_UNIQUE | cf::NDI_RED);
		1667
		1668	warn "ERROR in enter_exit: $@";
		1669	$self->leave_link;
		1670	}
		1671	})->prio (1);
		1672	}
		1673
		1674	=head3 cf::client
		1675
		1676	=over 4
		1677
		1678	=item $client->send_drawinfo ($text, $flags)
		1679
		1680	Sends a drawinfo packet to the client. Circumvents output buffering so
		1681	should not be used under normal circumstances.
		1682
		1683	=cut
		1684
		1685	sub cf::client::send_drawinfo {
		1686	my ($self, $text, $flags) = @_;
		1687
		1688	utf8::encode $text;
		1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1690	}
		1691
		1692
		1693	=item $success = $client->query ($flags, "text", \&cb)
		1694
		1695	Queues a query to the client, calling the given callback with
		1696	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1697	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1698
		1699	Queries can fail, so check the return code. Or don't, as queries will become
		1700	reliable at some point in the future.
		1701
		1702	=cut
		1703
		1704	sub cf::client::query {
		1705	my ($self, $flags, $text, $cb) = @_;
		1706
		1707	return unless $self->state == ST_PLAYING
		1708	|| $self->state == ST_SETUP
		1709	|| $self->state == ST_CUSTOM;
		1710
		1711	$self->state (ST_CUSTOM);
		1712
		1713	utf8::encode $text;
		1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1715
		1716	$self->send_packet ($self->{query_queue}[0][0])
		1717	if @{ $self->{query_queue} } == 1;
		1718	}
		1719
		1720	cf::client->attach (
		1721	on_reply => sub {
		1722	my ($ns, $msg) = @_;
		1723
		1724	# this weird shuffling is so that direct followup queries
		1725	# get handled first
		1726	my $queue = delete $ns->{query_queue}
		1727	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1728
		1729	(shift @$queue)->[1]->($msg);
		1730
		1731	push @{ $ns->{query_queue} }, @$queue;
		1732
		1733	if (@{ $ns->{query_queue} } == @$queue) {
		1734	if (@$queue) {
		1735	$ns->send_packet ($ns->{query_queue}[0][0]);
		1736	} else {
		1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1738	}
		1739	}
		1740	},
		1741	);
		1742
		1743	=item $client->async (\&cb)
		1744
		1745	Create a new coroutine, running the specified callback. The coroutine will
		1746	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1747	or loss of connection).
		1748
		1749	=cut
		1750
		1751	sub cf::client::async {
		1752	my ($self, $cb) = @_;
		1753
		1754	my $coro = &Coro::async ($cb);
		1755
		1756	$coro->on_destroy (sub {
		1757	delete $self->{_coro}{$coro+0};
		1758	});
		1759
		1760	$self->{_coro}{$coro+0} = $coro;
		1761
		1762	$coro
		1763	}
		1764
		1765	cf::client->attach (
		1766	on_destroy => sub {
		1767	my ($ns) = @_;
		1768
		1769	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1770	},
		1771	);
		1772
		1773	=back
		1774
845		1775
846	=head2 SAFE SCRIPTING	1776	=head2 SAFE SCRIPTING
847		1777
848	Functions that provide a safe environment to compile and execute	1778	Functions that provide a safe environment to compile and execute
849	snippets of perl code without them endangering the safety of the server	1779	snippets of perl code without them endangering the safety of the server
…		…
864		1794
865	=pod	1795	=pod
866		1796
867	The following fucntions and emthods are available within a safe environment:	1797	The following fucntions and emthods are available within a safe environment:
868		1798
869	cf::object contr pay_amount pay_player	1799	cf::object contr pay_amount pay_player map
870	cf::object::player player	1800	cf::object::player player
871	cf::player peaceful	1801	cf::player peaceful
		1802	cf::map trigger
872		1803
873	=cut	1804	=cut
874		1805
875	for (	1806	for (
876	["cf::object" => qw(contr pay_amount pay_player)],	1807	["cf::object" => qw(contr pay_amount pay_player map)],
877	["cf::object::player" => qw(player)],	1808	["cf::object::player" => qw(player)],
878	["cf::player" => qw(peaceful)],	1809	["cf::player" => qw(peaceful)],
		1810	["cf::map" => qw(trigger)],
879	) {	1811	) {
880	no strict 'refs';	1812	no strict 'refs';
881	my ($pkg, @funs) = @$_;	1813	my ($pkg, @funs) = @$_;
882	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1814	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
883	for @funs;	1815	for @funs;
…		…
999		1931
1000	{	1932	{
1001	my $path = cf::localdir . "/database.pst";	1933	my $path = cf::localdir . "/database.pst";
1002		1934
1003	sub db_load() {	1935	sub db_load() {
1004	warn "loading database $path\n";#d# remove later
1005	$DB = stat $path ? Storable::retrieve $path : { };	1936	$DB = stat $path ? Storable::retrieve $path : { };
1006	}	1937	}
1007		1938
1008	my $pid;	1939	my $pid;
1009		1940
1010	sub db_save() {	1941	sub db_save() {
1011	warn "saving database $path\n";#d# remove later
1012	waitpid $pid, 0 if $pid;	1942	waitpid $pid, 0 if $pid;
1013	if (0 == ($pid = fork)) {	1943	if (0 == ($pid = fork)) {
1014	$DB->{_meta}{version} = 1;	1944	$DB->{_meta}{version} = 1;
1015	Storable::nstore $DB, "$path~";	1945	Storable::nstore $DB, "$path~";
1016	rename "$path~", $path;	1946	rename "$path~", $path;
…		…
1023	sub db_sync() {	1953	sub db_sync() {
1024	db_save if $dirty;	1954	db_save if $dirty;
1025	undef $dirty;	1955	undef $dirty;
1026	}	1956	}
1027		1957
1028	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1029	db_sync;	1959	db_sync;
1030	});	1960	});
1031		1961
1032	sub db_dirty() {	1962	sub db_dirty() {
1033	$dirty = 1;	1963	$dirty = 1;
…		…
1047	$DB->{$_[0]} = $_[1];	1977	$DB->{$_[0]} = $_[1];
1048	}	1978	}
1049	db_dirty;	1979	db_dirty;
1050	}	1980	}
1051		1981
1052	attach_global	1982	cf::global->attach (
1053	prio => 10000,	1983	prio => 10000,
1054	on_cleanup => sub {	1984	on_cleanup => sub {
1055	db_sync;	1985	db_sync;
1056	},	1986	},
1057	;	1987	);
1058	}	1988	}
1059		1989
1060	#############################################################################	1990	#############################################################################
1061	# the server's main()	1991	# the server's main()
1062		1992
…		…
1064	open my $fh, "<:utf8", cf::confdir . "/config"	1994	open my $fh, "<:utf8", cf::confdir . "/config"
1065	or return;	1995	or return;
1066		1996
1067	local $/;	1997	local $/;
1068	*CFG = YAML::Syck::Load <$fh>;	1998	*CFG = YAML::Syck::Load <$fh>;
		1999
		2000	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2001
		2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2004
		2005	if (exists $CFG{mlockall}) {
		2006	eval {
		2007	$CFG{mlockall} ? &mlockall : &munlockall
		2008	and die "WARNING: m(un)lockall failed: $!\n";
		2009	};
		2010	warn $@ if $@;
		2011	}
1069	}	2012	}
1070		2013
1071	sub main {	2014	sub main {
		2015	# we must not ever block the main coroutine
		2016	local $Coro::idle = sub {
		2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2018	async { Event::one_event };
		2019	};
		2020
1072	cfg_load;	2021	cfg_load;
1073	db_load;	2022	db_load;
1074	load_extensions;	2023	load_extensions;
1075	Event::loop;	2024	Event::loop;
1076	}	2025	}
1077		2026
1078	#############################################################################	2027	#############################################################################
1079	# initialisation	2028	# initialisation
1080		2029
1081	sub _perl_reload(&) {	2030	sub reload() {
1082	my ($msg) = @_;	2031	# can/must only be called in main
		2032	if ($Coro::current != $Coro::main) {
		2033	warn "can only reload from main coroutine\n";
		2034	return;
		2035	}
1083		2036
1084	$msg->("reloading...");	2037	warn "reloading...";
		2038
		2039	my $guard = freeze_mainloop;
		2040	cf::emergency_save;
1085		2041
1086	eval {	2042	eval {
		2043	# if anything goes wrong in here, we should simply crash as we already saved
		2044
1087	# cancel all watchers	2045	# cancel all watchers
1088	$_->cancel for Event::all_watchers;	2046	for (Event::all_watchers) {
		2047	$_->cancel if $_->data & WF_AUTOCANCEL;
		2048	}
		2049
		2050	# cancel all extension coros
		2051	$_->cancel for values %EXT_CORO;
		2052	%EXT_CORO = ();
1089		2053
1090	# unload all extensions	2054	# unload all extensions
1091	for (@exts) {	2055	for (@exts) {
1092	$msg->("unloading <$_>");	2056	warn "unloading <$_>";
1093	unload_extension $_;	2057	unload_extension $_;
1094	}	2058	}
1095		2059
1096	# unload all modules loaded from $LIBDIR	2060	# unload all modules loaded from $LIBDIR
1097	while (my ($k, $v) = each %INC) {	2061	while (my ($k, $v) = each %INC) {
1098	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1099		2063
1100	$msg->("removing <$k>");	2064	warn "removing <$k>";
1101	delete $INC{$k};	2065	delete $INC{$k};
1102		2066
1103	$k =~ s/\.pm$//;	2067	$k =~ s/\.pm$//;
1104	$k =~ s/\//::/g;	2068	$k =~ s/\//::/g;
1105		2069
…		…
1110	Symbol::delete_package $k;	2074	Symbol::delete_package $k;
1111	}	2075	}
1112		2076
1113	# sync database to disk	2077	# sync database to disk
1114	cf::db_sync;	2078	cf::db_sync;
		2079	IO::AIO::flush;
1115		2080
1116	# get rid of safe::, as good as possible	2081	# get rid of safe::, as good as possible
1117	Symbol::delete_package "safe::$_"	2082	Symbol::delete_package "safe::$_"
1118	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1119		2084
1120	# remove register_script_function callbacks	2085	# remove register_script_function callbacks
1121	# TODO	2086	# TODO
1122		2087
1123	# unload cf.pm "a bit"	2088	# unload cf.pm "a bit"
…		…
1126	# don't, removes xs symbols, too,	2091	# don't, removes xs symbols, too,
1127	# and global variables created in xs	2092	# and global variables created in xs
1128	#Symbol::delete_package __PACKAGE__;	2093	#Symbol::delete_package __PACKAGE__;
1129		2094
1130	# reload cf.pm	2095	# reload cf.pm
1131	$msg->("reloading cf.pm");	2096	warn "reloading cf.pm";
1132	require cf;	2097	require cf;
		2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1133		2099
1134	# load config and database again	2100	# load config and database again
1135	cf::cfg_load;	2101	cf::cfg_load;
1136	cf::db_load;	2102	cf::db_load;
1137		2103
1138	# load extensions	2104	# load extensions
1139	$msg->("load extensions");	2105	warn "load extensions";
1140	cf::load_extensions;	2106	cf::load_extensions;
1141		2107
1142	# reattach attachments to objects	2108	# reattach attachments to objects
1143	$msg->("reattach");	2109	warn "reattach";
1144	_global_reattach;	2110	_global_reattach;
1145	};	2111	};
1146	$msg->($@) if $@;
1147		2112
1148	$msg->("reloaded");	2113	if ($@) {
		2114	warn $@;
		2115	warn "error while reloading, exiting.";
		2116	exit 1;
		2117	}
		2118
		2119	warn "reloaded successfully";
1149	};	2120	};
1150		2121
1151	sub perl_reload() {	2122	#############################################################################
1152	_perl_reload {	2123
1153	warn $_[0];	2124	unless ($LINK_MAP) {
1154	print "$_[0]\n";	2125	$LINK_MAP = cf::map::new;
1155	};	2126
		2127	$LINK_MAP->width (41);
		2128	$LINK_MAP->height (41);
		2129	$LINK_MAP->alloc;
		2130	$LINK_MAP->path ("{link}");
		2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2133
		2134	# dirty hack because... archetypes are not yet loaded
		2135	Event->timer (
		2136	after => 2,
		2137	cb => sub {
		2138	$_[0]->w->cancel;
		2139
		2140	# provide some exits "home"
		2141	my $exit = cf::object::new "exit";
		2142
		2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2146
		2147	$LINK_MAP->insert ($exit->clone, 19, 19);
		2148	$LINK_MAP->insert ($exit->clone, 19, 20);
		2149	$LINK_MAP->insert ($exit->clone, 19, 21);
		2150	$LINK_MAP->insert ($exit->clone, 20, 19);
		2151	$LINK_MAP->insert ($exit->clone, 20, 21);
		2152	$LINK_MAP->insert ($exit->clone, 21, 19);
		2153	$LINK_MAP->insert ($exit->clone, 21, 20);
		2154	$LINK_MAP->insert ($exit->clone, 21, 21);
		2155
		2156	$exit->destroy;
		2157	});
		2158
		2159	$LINK_MAP->{deny_save} = 1;
		2160	$LINK_MAP->{deny_reset} = 1;
		2161
		2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1156	}	2163	}
1157		2164
1158	register "<global>", __PACKAGE__;	2165	register "<global>", __PACKAGE__;
1159		2166
1160	register_command "perl-reload" => sub {	2167	register_command "reload" => sub {
1161	my ($who, $arg) = @_;	2168	my ($who, $arg) = @_;
1162		2169
1163	if ($who->flag (FLAG_WIZ)) {	2170	if ($who->flag (FLAG_WIZ)) {
1164	_perl_reload {	2171	$who->message ("start of reload.");
1165	warn $_[0];	2172	reload;
1166	$who->message ($_[0]);	2173	$who->message ("end of reload.");
1167	};
1168	}	2174	}
1169	};	2175	};
1170		2176
1171	unshift @INC, $LIBDIR;	2177	unshift @INC, $LIBDIR;
1172		2178
1173	$TICK_WATCHER = Event->timer (	2179	$TICK_WATCHER = Event->timer (
		2180	reentrant => 0,
1174	prio => 1,	2181	prio => 0,
1175	async => 1,
1176	at => $NEXT_TICK || 1,	2182	at => $NEXT_TICK || $TICK,
		2183	data => WF_AUTOCANCEL,
1177	cb => sub {	2184	cb => sub {
1178	cf::server_tick; # one server iteration	2185	cf::server_tick; # one server iteration
1179		2186	$RUNTIME += $TICK;
1180	my $NOW = Event::time;
1181	$NEXT_TICK += $TICK;	2187	$NEXT_TICK += $TICK;
1182		2188
1183	# if we are delayed by four ticks or more, skip them all	2189	# if we are delayed by four ticks or more, skip them all
1184	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1185		2191
1186	$TICK_WATCHER->at ($NEXT_TICK);	2192	$TICK_WATCHER->at ($NEXT_TICK);
1187	$TICK_WATCHER->start;	2193	$TICK_WATCHER->start;
1188	},	2194	},
1189	);	2195	);
1190		2196
1191	IO::AIO::max_poll_time $TICK * 0.2;	2197	IO::AIO::max_poll_time $TICK * 0.2;
1192		2198
		2199	Event->io (
1193	Event->io (fd => IO::AIO::poll_fileno,	2200	fd => IO::AIO::poll_fileno,
1194	poll => 'r',	2201	poll => 'r',
1195	prio => 5,	2202	prio => 5,
		2203	data => WF_AUTOCANCEL,
1196	cb => \&IO::AIO::poll_cb);	2204	cb => \&IO::AIO::poll_cb,
		2205	);
		2206
		2207	Event->timer (
		2208	data => WF_AUTOCANCEL,
		2209	after => 0,
		2210	interval => 10,
		2211	cb => sub {
		2212	(Coro::unblock_sub {
		2213	write_runtime
		2214	or warn "ERROR: unable to write runtime file: $!";
		2215	})->();
		2216	},
		2217	);
		2218
		2219	END { cf::emergency_save }
1197		2220
1198	1	2221	1
1199		2222

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