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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 1.151 by root, Mon Jan 8 20:59:15 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 2.32 ();
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 %PLAYER; # all users
		53	our %MAP; # all maps
		54	our $LINK_MAP; # the special {link} map
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO; # coroutines bound to extensions
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		63	open my $fh, "<", cf::localdir . "/runtime"
		64	or die "unable to read runtime file: $!";
		65	$RUNTIME = <$fh> + 0.;
		66	}
		67
		68	mkdir cf::localdir;
		69	mkdir cf::localdir . "/" . cf::playerdir;
		70	mkdir cf::localdir . "/" . cf::tmpdir;
		71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
		73
		74	# a special map that is always available
		75	our $LINK_MAP;
		76	our $EMERGENCY_POSITION;
37		77
38	#############################################################################	78	#############################################################################
39		79
40	=head2 GLOBAL VARIABLES	80	=head2 GLOBAL VARIABLES
41		81
42	=over 4	82	=over 4
43		83
44	=item $cf::UPTIME	84	=item $cf::UPTIME
45		85
46	The timestamp of the server start (so not actually an uptime).	86	The timestamp of the server start (so not actually an uptime).
		87
		88	=item $cf::RUNTIME
		89
		90	The time this server has run, starts at 0 and is increased by $cf::TICK on
		91	every server tick.
47		92
48	=item $cf::LIBDIR	93	=item $cf::LIBDIR
49		94
50	The perl library directory, where extensions and cf-specific modules can	95	The perl library directory, where extensions and cf-specific modules can
51	be found. It will be added to C<@INC> automatically.	96	be found. It will be added to C<@INC> automatically.
		97
		98	=item $cf::NOW
		99
		100	The time of the last (current) server tick.
52		101
53	=item $cf::TICK	102	=item $cf::TICK
54		103
55	The interval between server ticks, in seconds.	104	The interval between server ticks, in seconds.
56		105
…		…
64	=cut	113	=cut
65		114
66	BEGIN {	115	BEGIN {
67	*CORE::GLOBAL::warn = sub {	116	*CORE::GLOBAL::warn = sub {
68	my $msg = join "", @_;	117	my $msg = join "", @_;
		118	utf8::encode $msg;
		119
69	$msg .= "\n"	120	$msg .= "\n"
70	unless $msg =~ /\n$/;	121	unless $msg =~ /\n$/;
71		122
72	print STDERR "cfperl: $msg";
73	LOG llevError, "cfperl: $msg";	123	LOG llevError, $msg;
74	};	124	};
75	}	125	}
76		126
		127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
77	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
78		133
79	# we bless all objects into (empty) derived classes to force a method lookup	134	# we bless all objects into (empty) derived classes to force a method lookup
80	# within the Safe compartment.	135	# within the Safe compartment.
81	for my $pkg (qw(	136	for my $pkg (qw(
		137	cf::global cf::attachable
82	cf::object cf::object::player	138	cf::object cf::object::player
83	cf::client_socket cf::player	139	cf::client cf::player
84	cf::arch cf::living	140	cf::arch cf::living
85	cf::map cf::party cf::region	141	cf::map cf::party cf::region
86	)) {	142	)) {
87	no strict 'refs';	143	no strict 'refs';
88	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
…		…
124	sub to_json($) {	180	sub to_json($) {
125	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
126	JSON::Syck::Dump $_[0]	182	JSON::Syck::Dump $_[0]
127	}	183	}
128		184
		185	=item cf::lock_wait $string
		186
		187	Wait until the given lock is available. See cf::lock_acquire.
		188
		189	=item my $lock = cf::lock_acquire $string
		190
		191	Wait until the given lock is available and then acquires it and returns
		192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		193	for example when the coroutine gets canceled), the lock is automatically
		194	returned.
		195
		196	Lock names should begin with a unique identifier (for example, cf::map::find
		197	uses map_find and cf::map::load uses map_load).
		198
		199	=cut
		200
		201	our %LOCK;
		202
		203	sub lock_wait($) {
		204	my ($key) = @_;
		205
		206	# wait for lock, if any
		207	while ($LOCK{$key}) {
		208	push @{ $LOCK{$key} }, $Coro::current;
		209	Coro::schedule;
		210	}
		211	}
		212
		213	sub lock_acquire($) {
		214	my ($key) = @_;
		215
		216	# wait, to be sure we are not locked
		217	lock_wait $key;
		218
		219	$LOCK{$key} = [];
		220
		221	Coro::guard {
		222	# wake up all waiters, to be on the safe side
		223	$_->ready for @{ delete $LOCK{$key} };
		224	}
		225	}
		226
		227	sub freeze_mainloop {
		228	return unless $TICK_WATCHER->is_active;
		229
		230	my $guard = Coro::guard { $TICK_WATCHER->start };
		231	$TICK_WATCHER->stop;
		232	$guard
		233	}
		234
		235	=item cf::async { BLOCK }
		236
		237	Currently the same as Coro::async_pool, meaning you cannot use
		238	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		239	thing you are allowed to do is call C<prio> on it.
		240
		241	=cut
		242
		243	BEGIN { *async = \&Coro::async_pool }
		244
		245	=item cf::sync_job { BLOCK }
		246
		247	The design of crossfire+ requires that the main coro ($Coro::main) is
		248	always able to handle events or runnable, as crossfire+ is only partly
		249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		250
		251	If it must be done, put the blocking parts into C<sync_job>. This will run
		252	the given BLOCK in another coroutine while waiting for the result. The
		253	server will be frozen during this time, so the block should either finish
		254	fast or be very important.
		255
		256	=cut
		257
		258	sub sync_job(&) {
		259	my ($job) = @_;
		260
		261	if ($Coro::current == $Coro::main) {
		262	# this is the main coro, too bad, we have to block
		263	# till the operation succeeds, freezing the server :/
		264
		265	# TODO: use suspend/resume instead
		266	# (but this is cancel-safe)
		267	my $freeze_guard = freeze_mainloop;
		268
		269	my $busy = 1;
		270	my @res;
		271
		272	(async {
		273	@res = eval { $job->() };
		274	warn $@ if $@;
		275	undef $busy;
		276	})->prio (Coro::PRIO_MAX);
		277
		278	while ($busy) {
		279	Coro::cede or Event::one_event;
		280	}
		281
		282	wantarray ? @res : $res[0]
		283	} else {
		284	# we are in another coroutine, how wonderful, everything just works
		285
		286	$job->()
		287	}
		288	}
		289
		290	=item $coro = cf::async_ext { BLOCK }
		291
		292	Like async, but this coro is automcatially being canceled when the
		293	extension calling this is being unloaded.
		294
		295	=cut
		296
		297	sub async_ext(&) {
		298	my $cb = shift;
		299
		300	my $coro = &Coro::async ($cb);
		301
		302	$coro->on_destroy (sub {
		303	delete $EXT_CORO{$coro+0};
		304	});
		305	$EXT_CORO{$coro+0} = $coro;
		306
		307	$coro
		308	}
		309
		310	sub write_runtime {
		311	my $runtime = cf::localdir . "/runtime";
		312
		313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		314	or return;
		315
		316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		318	and return;
		319
		320	aio_fsync $fh
		321	and return;
		322
		323	close $fh
		324	or return;
		325
		326	aio_rename "$runtime~", $runtime
		327	and return;
		328
		329	1
		330	}
		331
129	=back	332	=back
130		333
131	=cut	334	=cut
132		335
133	#############################################################################	336	#############################################################################
134		337
135	=head2 EVENTS AND OBJECT ATTACHMENTS	338	package cf::path;
		339
		340	sub new {
		341	my ($class, $path, $base) = @_;
		342
		343	$path = $path->as_string if ref $path;
		344
		345	my $self = bless { }, $class;
		346
		347	# {... are special paths that are not touched
		348	# ?xxx/... are special absolute paths
		349	# ?random/... random maps
		350	# /! non-realised random map exit
		351	# /... normal maps
		352	# ~/... per-player maps without a specific player (DO NOT USE)
		353	# ~user/... per-player map of a specific user
		354
		355	if ($path =~ /^{/) {
		356	# fine as it is
		357	} elsif ($path =~ s{^\?random/}{}) {
		358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		359	$self->{random} = cf::from_json $data;
		360	} else {
		361	if ($path =~ s{^~([^/]+)?}{}) {
		362	$self->{user_rel} = 1;
		363
		364	if (defined $1) {
		365	$self->{user} = $1;
		366	} elsif ($base =~ m{^~([^/]+)/}) {
		367	$self->{user} = $1;
		368	} else {
		369	warn "cannot resolve user-relative path without user <$path,$base>\n";
		370	}
		371	} elsif ($path =~ /^\//) {
		372	# already absolute
		373	} else {
		374	$base =~ s{[^/]+/?$}{};
		375	return $class->new ("$base/$path");
		376	}
		377
		378	for ($path) {
		379	redo if s{/\.?/}{/};
		380	redo if s{/[^/]+/\.\./}{/};
		381	}
		382	}
		383
		384	$self->{path} = $path;
		385
		386	$self
		387	}
		388
		389	# the name / primary key / in-game path
		390	sub as_string {
		391	my ($self) = @_;
		392
		393	$self->{user_rel} ? "~$self->{user}$self->{path}"
		394	: $self->{random} ? "?random/$self->{path}"
		395	: $self->{path}
		396	}
		397
		398	# the displayed name, this is a one way mapping
		399	sub visible_name {
		400	my ($self) = @_;
		401
		402	# if (my $rmp = $self->{random}) {
		403	# # todo: be more intelligent about this
		404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		405	# } else {
		406	$self->as_string
		407	# }
		408	}
		409
		410	# escape the /'s in the path
		411	sub _escaped_path {
		412	# ∕ is U+2215
		413	(my $path = $_[0]{path}) =~ s/\//∕/g;
		414	$path
		415	}
		416
		417	# the original (read-only) location
		418	sub load_path {
		419	my ($self) = @_;
		420
		421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		422	}
		423
		424	# the temporary/swap location
		425	sub save_path {
		426	my ($self) = @_;
		427
		428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		431	}
		432
		433	# the unique path, might be eq to save_path
		434	sub uniq_path {
		435	my ($self) = @_;
		436
		437	$self->{user_rel} || $self->{random}
		438	? undef
		439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		440	}
		441
		442	# return random map parameters, or undef
		443	sub random_map_params {
		444	my ($self) = @_;
		445
		446	$self->{random}
		447	}
		448
		449	# this is somewhat ugly, but style maps do need special treatment
		450	sub is_style_map {
		451	$_[0]{path} =~ m{^/styles/}
		452	}
		453
		454	package cf;
		455
		456	#############################################################################
		457
		458	=head2 ATTACHABLE OBJECTS
		459
		460	Many objects in crossfire are so-called attachable objects. That means you can
		461	attach callbacks/event handlers (a collection of which is called an "attachment")
		462	to it. All such attachable objects support the following methods.
		463
		464	In the following description, CLASS can be any of C<global>, C<object>
		465	C<player>, C<client> or C<map> (i.e. the attachable objects in
		466	crossfire+).
136		467
137	=over 4	468	=over 4
138		469
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...)	470	=item $attachable->attach ($attachment, key => $value...)
152		471
153	=item $map->detach ($attachment)	472	=item $attachable->detach ($attachment)
154		473
155	Attach/detach a pre-registered attachment to a map.	474	Attach/detach a pre-registered attachment to a specific object and give it
		475	the specified key/value pairs as arguments.
156		476
157	=item $bool = $object->attached ($name)	477	Example, attach a minesweeper attachment to the given object, making it a
		478	10x10 minesweeper game:
158		479
159	=item $bool = $player->attached ($name)	480	$obj->attach (minesweeper => width => 10, height => 10);
160		481
161	=item $bool = $map->attached ($name)	482	=item $bool = $attachable->attached ($name)
162		483
163	Checks wether the named attachment is currently attached to the object.	484	Checks wether the named attachment is currently attached to the object.
164		485
165	=item cf::attach_global ...	486	=item cf::CLASS->attach ...
166		487
167	Attach handlers for global events.	488	=item cf::CLASS->detach ...
168		489
169	This and all following C<attach_*>-functions expect any number of the	490	Define an anonymous attachment and attach it to all objects of the given
170	following handler/hook descriptions:	491	CLASS. See the next function for an explanation of its arguments.
		492
		493	You can attach to global events by using the C<cf::global> class.
		494
		495	Example, log all player logins:
		496
		497	cf::player->attach (
		498	on_login => sub {
		499	my ($pl) = @_;
		500	...
		501	},
		502	);
		503
		504	Example, attach to the jeweler skill:
		505
		506	cf::object->attach (
		507	type => cf::SKILL,
		508	subtype => cf::SK_JEWELER,
		509	on_use_skill => sub {
		510	my ($sk, $ob, $part, $dir, $msg) = @_;
		511	...
		512	},
		513	);
		514
		515	=item cf::CLASS::attachment $name, ...
		516
		517	Register an attachment by C<$name> through which attachable objects of the
		518	given CLASS can refer to this attachment.
		519
		520	Some classes such as crossfire maps and objects can specify attachments
		521	that are attached at load/instantiate time, thus the need for a name.
		522
		523	These calls expect any number of the following handler/hook descriptions:
171		524
172	=over 4	525	=over 4
173		526
174	=item prio => $number	527	=item prio => $number
175		528
…		…
177	by another C<prio> setting). Lower priority handlers get executed	530	by another C<prio> setting). Lower priority handlers get executed
178	earlier. The default priority is C<0>, and many built-in handlers are	531	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	532	registered at priority C<-1000>, so lower priorities should not be used
180	unless you know what you are doing.	533	unless you know what you are doing.
181		534
		535	=item type => $type
		536
		537	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		538	given type of objects only (the additional parameter C<subtype> can be
		539	used to further limit to the given subtype).
		540
182	=item on_I<event> => \&cb	541	=item on_I<event> => \&cb
183		542
184	Call the given code reference whenever the named event happens (event is	543	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	544	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	545	handlers are recognised generally depends on the type of object these
…		…
195	package and register them. Only handlers for eevents supported by the	554	package and register them. Only handlers for eevents supported by the
196	object/class are recognised.	555	object/class are recognised.
197		556
198	=back	557	=back
199		558
200	=item cf::attach_to_type $object_type, $subtype, ...	559	Example, define an attachment called "sockpuppet" that calls the given
		560	event handler when a monster attacks:
201		561
202	Attach handlers for a specific object type (e.g. TRANSPORT) and	562	cf::object::attachment sockpuppet =>
203	subtype. If C<$subtype> is zero or undef, matches all objects of the given	563	on_skill_attack => sub {
204	type.	564	my ($self, $victim) = @_;
205		565	...
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	}	566	}
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	567	}
427	}
428		568
429	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	569	=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		570
455	Just because you have a perl object does not mean that the corresponding	571	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	572	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	573	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	574	can be used to test for existence of the C object part without causing an
459	exception.	575	exception.
460		576
		577	=cut
		578
		579	# the following variables are defined in .xs and must not be re-created
		580	our @CB_GLOBAL = (); # registry for all global events
		581	our @CB_ATTACHABLE = (); # registry for all attachables
		582	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		583	our @CB_PLAYER = ();
		584	our @CB_CLIENT = ();
		585	our @CB_TYPE = (); # registry for type (cf-object class) based events
		586	our @CB_MAP = ();
		587
		588	my %attachment;
		589
		590	sub _attach_cb($$$$) {
		591	my ($registry, $event, $prio, $cb) = @_;
		592
		593	use sort 'stable';
		594
		595	$cb = [$prio, $cb];
		596
		597	@{$registry->[$event]} = sort
		598	{ $a->[0] cmp $b->[0] }
		599	@{$registry->[$event] || []}, $cb;
		600	}
		601
		602	# hack
		603	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		604
		605	# attach handles attaching event callbacks
		606	# the only thing the caller has to do is pass the correct
		607	# registry (== where the callback attaches to).
		608	sub _attach {
		609	my ($registry, $klass, @arg) = @_;
		610
		611	my $object_type;
		612	my $prio = 0;
		613	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		614
		615	#TODO: get rid of this hack
		616	if ($attachable_klass{$klass}) {
		617	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		618	}
		619
		620	while (@arg) {
		621	my $type = shift @arg;
		622
		623	if ($type eq "prio") {
		624	$prio = shift @arg;
		625
		626	} elsif ($type eq "type") {
		627	$object_type = shift @arg;
		628	$registry = $CB_TYPE[$object_type] ||= [];
		629
		630	} elsif ($type eq "subtype") {
		631	defined $object_type or Carp::croak "subtype specified without type";
		632	my $object_subtype = shift @arg;
		633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		634
		635	} elsif ($type eq "package") {
		636	my $pkg = shift @arg;
		637
		638	while (my ($name, $id) = each %cb_id) {
		639	if (my $cb = $pkg->can ($name)) {
		640	_attach_cb $registry, $id, $prio, $cb;
		641	}
		642	}
		643
		644	} elsif (exists $cb_id{$type}) {
		645	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		646
		647	} elsif (ref $type) {
		648	warn "attaching objects not supported, ignoring.\n";
		649
		650	} else {
		651	shift @arg;
		652	warn "attach argument '$type' not supported, ignoring.\n";
		653	}
		654	}
		655	}
		656
		657	sub _object_attach {
		658	my ($obj, $name, %arg) = @_;
		659
		660	return if exists $obj->{_attachment}{$name};
		661
		662	if (my $attach = $attachment{$name}) {
		663	my $registry = $obj->registry;
		664
		665	for (@$attach) {
		666	my ($klass, @attach) = @$_;
		667	_attach $registry, $klass, @attach;
		668	}
		669
		670	$obj->{$name} = \%arg;
		671	} else {
		672	warn "object uses attachment '$name' that is not available, postponing.\n";
		673	}
		674
		675	$obj->{_attachment}{$name} = undef;
		676	}
		677
		678	sub cf::attachable::attach {
		679	if (ref $_[0]) {
		680	_object_attach @_;
		681	} else {
		682	_attach shift->_attach_registry, @_;
		683	}
		684	};
		685
		686	# all those should be optimised
		687	sub cf::attachable::detach {
		688	my ($obj, $name) = @_;
		689
		690	if (ref $obj) {
		691	delete $obj->{_attachment}{$name};
		692	reattach ($obj);
		693	} else {
		694	Carp::croak "cannot, currently, detach class attachments";
		695	}
		696	};
		697
		698	sub cf::attachable::attached {
		699	my ($obj, $name) = @_;
		700
		701	exists $obj->{_attachment}{$name}
		702	}
		703
		704	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		705	eval "#line " . __LINE__ . " 'cf.pm'
		706	sub cf::\L$klass\E::_attach_registry {
		707	(\\\@CB_$klass, KLASS_$klass)
		708	}
		709
		710	sub cf::\L$klass\E::attachment {
		711	my \$name = shift;
		712
		713	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		714	}
		715	";
		716	die if $@;
		717	}
		718
		719	our $override;
		720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		721
		722	sub override {
		723	$override = 1;
		724	@invoke_results = ();
		725	}
		726
		727	sub do_invoke {
		728	my $event = shift;
		729	my $callbacks = shift;
		730
		731	@invoke_results = ();
		732
		733	local $override;
		734
		735	for (@$callbacks) {
		736	eval { &{$_->[1]} };
		737
		738	if ($@) {
		739	warn "$@";
		740	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		741	override;
		742	}
		743
		744	return 1 if $override;
		745	}
		746
		747	0
		748	}
		749
		750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		751
		752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		753
		754	Generate an object-specific event with the given arguments.
		755
		756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		757	removed in future versions), and there is no public API to access override
		758	results (if you must, access C<@cf::invoke_results> directly).
		759
461	=back	760	=back
462		761
463	=cut	762	=cut
464
465	*cf::object::valid =
466	*cf::player::valid =
467	*cf::map::valid = \&cf::_valid;
468		763
469	#############################################################################	764	#############################################################################
470	# object support	765	# object support
471		766
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 {	767	sub reattach {
		768	# basically do the same as instantiate, without calling instantiate
486	my ($obj) = @_;	769	my ($obj) = @_;
		770
487	my $registry = $obj->registry;	771	my $registry = $obj->registry;
488		772
489	@$registry = ();	773	@$registry = ();
490		774
491	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	775	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
492		776
493	for my $name (keys %{ $obj->{_attachment} || {} }) {	777	for my $name (keys %{ $obj->{_attachment} || {} }) {
494	if (my $attach = $attachment{$name}) {	778	if (my $attach = $attachment{$name}) {
495	for (@$attach) {	779	for (@$attach) {
496	my ($klass, @attach) = @$_;	780	my ($klass, @attach) = @$_;
497	_attach @$registry, $klass, @attach;	781	_attach $registry, $klass, @attach;
498	}	782	}
499	} else {	783	} else {
500	warn "object uses attachment '$name' that is not available, postponing.\n";	784	warn "object uses attachment '$name' that is not available, postponing.\n";
501	}	785	}
502	}	786	}
503	}	787	}
504		788
505	sub object_freezer_save {	789	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	$$rdata . Dumper $objs
542	}
543
544	sub object_thawer_load {
545	my ($filename) = @_;
546
547	local $/;
548
549	my $av;
550
551	#TODO: use sysread etc.
552	if (open my $data, "<:raw:perlio", $filename) {
553	$data = <$data>;
554	if (open my $pst, "<:raw:perlio", "$filename.pst") {
555	$av = eval { (Storable::thaw <$pst>)->{objs} };
556	}
557	return ($data, $av);
558	}
559
560	()
561	}
562
563	attach_to_objects
564	prio => -1000000,	790	prio => -1000000,
		791	on_instantiate => sub {
		792	my ($obj, $data) = @_;
		793
		794	$data = from_json $data;
		795
		796	for (@$data) {
		797	my ($name, $args) = @$_;
		798
		799	$obj->attach ($name, %{$args || {} });
		800	}
		801	},
		802	on_reattach => \&reattach,
565	on_clone => sub {	803	on_clone => sub {
566	my ($src, $dst) = @_;	804	my ($src, $dst) = @_;
567		805
568	@{$dst->registry} = @{$src->registry};	806	@{$dst->registry} = @{$src->registry};
569		807
570	%$dst = %$src;	808	%$dst = %$src;
571		809
572	%{$dst->{_attachment}} = %{$src->{_attachment}}	810	%{$dst->{_attachment}} = %{$src->{_attachment}}
573	if exists $src->{_attachment};	811	if exists $src->{_attachment};
574	},	812	},
575	;	813	);
		814
		815	sub object_freezer_save {
		816	my ($filename, $rdata, $objs) = @_;
		817
		818	sync_job {
		819	if (length $$rdata) {
		820	warn sprintf "saving %s (%d,%d)\n",
		821	$filename, length $$rdata, scalar @$objs;
		822
		823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		824	chmod SAVE_MODE, $fh;
		825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		826	aio_fsync $fh;
		827	close $fh;
		828
		829	if (@$objs) {
		830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		831	chmod SAVE_MODE, $fh;
		832	my $data = Storable::nfreeze { version => 1, objs => $objs };
		833	aio_write $fh, 0, (length $data), $data, 0;
		834	aio_fsync $fh;
		835	close $fh;
		836	aio_rename "$filename.pst~", "$filename.pst";
		837	}
		838	} else {
		839	aio_unlink "$filename.pst";
		840	}
		841
		842	aio_rename "$filename~", $filename;
		843	} else {
		844	warn "FATAL: $filename~: $!\n";
		845	}
		846	} else {
		847	aio_unlink $filename;
		848	aio_unlink "$filename.pst";
		849	}
		850	}
		851	}
		852
		853	sub object_freezer_as_string {
		854	my ($rdata, $objs) = @_;
		855
		856	use Data::Dumper;
		857
		858	$$rdata . Dumper $objs
		859	}
		860
		861	sub object_thawer_load {
		862	my ($filename) = @_;
		863
		864	my ($data, $av);
		865
		866	(aio_load $filename, $data) >= 0
		867	or return;
		868
		869	unless (aio_stat "$filename.pst") {
		870	(aio_load "$filename.pst", $av) >= 0
		871	or return;
		872	$av = eval { (Storable::thaw $av)->{objs} };
		873	}
		874
		875	warn sprintf "loading %s (%d)\n",
		876	$filename, length $data, scalar @{$av || []};#d#
		877	return ($data, $av);
		878	}
576		879
577	#############################################################################	880	#############################################################################
578	# command handling &c	881	# command handling &c
579		882
580	=item cf::register_command $name => \&callback($ob,$args);	883	=item cf::register_command $name => \&callback($ob,$args);
…		…
609	#warn "registering extcmd '$name' to '$caller'";	912	#warn "registering extcmd '$name' to '$caller'";
610		913
611	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = [$cb, $caller];
612	}	915	}
613		916
614	attach_to_players	917	cf::player->attach (
615	on_command => sub {	918	on_command => sub {
616	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
617		920
618	my $cb = $COMMAND{$name}	921	my $cb = $COMMAND{$name}
619	or return;	922	or return;
…		…
639	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
640	}	943	}
641		944
642	cf::override;	945	cf::override;
643	},	946	},
644	;	947	);
645		948
646	sub register {	949	sub register {
647	my ($base, $pkg) = @_;	950	my ($base, $pkg) = @_;
648		951
649	#TODO	952	#TODO
…		…
718		1021
719	Symbol::delete_package $pkg;	1022	Symbol::delete_package $pkg;
720	}	1023	}
721		1024
722	sub load_extensions {	1025	sub load_extensions {
723	my $LIBDIR = maps_directory "perl";
724
725	for my $ext (<$LIBDIR/*.ext>) {	1026	for my $ext (<$LIBDIR/*.ext>) {
726	next unless -r $ext;	1027	next unless -r $ext;
727	eval {	1028	eval {
728	load_extension $ext;	1029	load_extension $ext;
729	1	1030	1
…		…
741	defined $path or return;	1042	defined $path or return;
742		1043
743	unlink "$path.pst";	1044	unlink "$path.pst";
744	};	1045	};
745		1046
746	attach_to_maps prio => -10000, package => cf::mapsupport::;	1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
747		1048
748	#############################################################################	1049	#############################################################################
749	# load/save perl data associated with player->ob objects	1050	# load/save perl data associated with player->ob objects
750		1051
751	sub all_objects(@) {	1052	sub all_objects(@) {
752	@_, map all_objects ($_->inv), @_	1053	@_, map all_objects ($_->inv), @_
753	}	1054	}
754		1055
755	# TODO: compatibility cruft, remove when no longer needed	1056	# TODO: compatibility cruft, remove when no longer needed
756	attach_to_players	1057	cf::player->attach (
757	on_load => sub {	1058	on_load => sub {
758	my ($pl, $path) = @_;	1059	my ($pl, $path) = @_;
759		1060
760	for my $o (all_objects $pl->ob) {	1061	for my $o (all_objects $pl->ob) {
761	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
763		1064
764	%$o = %{ Storable::thaw pack "H*", $value };	1065	%$o = %{ Storable::thaw pack "H*", $value };
765	}	1066	}
766	}	1067	}
767	},	1068	},
768	;	1069	);
769		1070
770	#############################################################################	1071	#############################################################################
771		1072
772	=head2 CORE EXTENSIONS	1073	=head2 CORE EXTENSIONS
773		1074
774	Functions and methods that extend core crossfire objects.	1075	Functions and methods that extend core crossfire objects.
775		1076
		1077	=cut
		1078
		1079	package cf::player;
		1080
		1081	=head3 cf::player
		1082
776	=over 4	1083	=over 4
777		1084
778	=item cf::player::exists $login	1085	=item cf::player::find $login
779		1086
780	Returns true when the given account exists.	1087	Returns the given player object, loading it if necessary (might block).
781		1088
782	=cut	1089	=cut
783		1090
784	sub cf::player::exists($) {	1091	sub playerdir($) {
785	cf::player::find $_[0]	1092	cf::localdir
786	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1093	. "/"
		1094	. cf::playerdir
		1095	. "/"
		1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])
787	}	1097	}
		1098
		1099	sub path($) {
		1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1101
		1102	(playerdir $login) . "/$login.pl"
		1103	}
		1104
		1105	sub find_active($) {
		1106	$cf::PLAYER{$_[0]}
		1107	and $cf::PLAYER{$_[0]}->active
		1108	and $cf::PLAYER{$_[0]}
		1109	}
		1110
		1111	sub exists($) {
		1112	my ($login) = @_;
		1113
		1114	$cf::PLAYER{$login}
		1115	or cf::sync_job { !aio_stat $login }
		1116	}
		1117
		1118	sub find($) {
		1119	return $cf::PLAYER{$_[0]} || do {
		1120	my $login = $_[0];
		1121
		1122	my $guard = cf::lock_acquire "user_find:$login";
		1123
		1124	$cf::PLAYER{$_[0]} || do {
		1125	my $pl = load_pl path $login
		1126	or return;
		1127	$cf::PLAYER{$login} = $pl
		1128	}
		1129	}
		1130	}
		1131
		1132	sub save($) {
		1133	my ($pl) = @_;
		1134
		1135	return if $pl->{deny_save};
		1136
		1137	my $path = path $pl;
		1138	my $guard = cf::lock_acquire "user_save:$path";
		1139
		1140	return if $pl->{deny_save};
		1141
		1142	Coro::AIO::aio_mkdir playerdir $pl, 0770;
		1143	$pl->{last_save} = $cf::RUNTIME;
		1144
		1145	$pl->save_pl ($path);
		1146	Coro::cede;
		1147	}
		1148
		1149	sub new($) {
		1150	my ($login) = @_;
		1151
		1152	my $self = create;
		1153
		1154	$self->ob->name ($login);
		1155	$self->{deny_save} = 1;
		1156
		1157	$cf::PLAYER{$login} = $self;
		1158
		1159	$self
		1160	}
		1161
		1162	sub quit_character {
		1163	my ($pl) = @_;
		1164
		1165	$pl->{deny_save} = 1;
		1166	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1167
		1168	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1169	$pl->deactivate;
		1170	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1171	$pl->ns->destroy if $pl->ns;
		1172
		1173	my $path = playerdir $pl;
		1174	my $temp = "$path~$cf::RUNTIME~deleting~";
		1175	Coro::AIO::aio_rename $path, $temp;
		1176	delete $cf::PLAYER{$pl->ob->name};
		1177	$pl->destroy;
		1178	IO::AIO::aio_rmtree $temp;
		1179	}
		1180
		1181	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1182
		1183	Sends an ext reply to the player.
		1184
		1185	=cut
		1186
		1187	sub ext_reply($$$%) {
		1188	my ($self, $id, %msg) = @_;
		1189
		1190	$msg{msgid} = $id;
		1191
		1192	$self->send ("ext " . cf::to_json \%msg);
		1193	}
		1194
		1195	package cf;
		1196
		1197	=back
		1198
		1199
		1200	=head3 cf::map
		1201
		1202	=over 4
		1203
		1204	=cut
		1205
		1206	package cf::map;
		1207
		1208	use Fcntl;
		1209	use Coro::AIO;
		1210
		1211	our $MAX_RESET = 3600;
		1212	our $DEFAULT_RESET = 3000;
		1213
		1214	sub generate_random_map {
		1215	my ($path, $rmp) = @_;
		1216
		1217	# mit "rum" bekleckern, nicht
		1218	cf::map::_create_random_map
		1219	$path,
		1220	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1221	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1222	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1223	$rmp->{exit_on_final_map},
		1224	$rmp->{xsize}, $rmp->{ysize},
		1225	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1226	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1227	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1228	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1229	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1230	(cf::region::find $rmp->{region})
		1231	}
		1232
		1233	# and all this just because we cannot iterate over
		1234	# all maps in C++...
		1235	sub change_all_map_light {
		1236	my ($change) = @_;
		1237
		1238	$_->change_map_light ($change)
		1239	for grep $_->outdoor, values %cf::MAP;
		1240	}
		1241
		1242	sub try_load_header($) {
		1243	my ($path) = @_;
		1244
		1245	utf8::encode $path;
		1246	aio_open $path, O_RDONLY, 0
		1247	or return;
		1248
		1249	my $map = cf::map::new
		1250	or return;
		1251
		1252	# for better error messages only, will be overwritten
		1253	$map->path ($path);
		1254
		1255	$map->load_header ($path)
		1256	or return;
		1257
		1258	$map->{load_path} = $path;
		1259
		1260	$map
		1261	}
		1262
		1263	sub find;
		1264	sub find {
		1265	my ($path, $origin) = @_;
		1266
		1267	#warn "find<$path,$origin>\n";#d#
		1268
		1269	$path = new cf::path $path, $origin && $origin->path;
		1270	my $key = $path->as_string;
		1271
		1272	cf::lock_wait "map_find:$key";
		1273
		1274	$cf::MAP{$key} || do {
		1275	my $guard = cf::lock_acquire "map_find:$key";
		1276
		1277	# do it the slow way
		1278	my $map = try_load_header $path->save_path;
		1279
		1280	Coro::cede;
		1281
		1282	if ($map) {
		1283	$map->last_access ((delete $map->{last_access})
		1284	|| $cf::RUNTIME); #d#
		1285	# safety
		1286	$map->{instantiate_time} = $cf::RUNTIME
		1287	if $map->{instantiate_time} > $cf::RUNTIME;
		1288	} else {
		1289	if (my $rmp = $path->random_map_params) {
		1290	$map = generate_random_map $key, $rmp;
		1291	} else {
		1292	$map = try_load_header $path->load_path;
		1293	}
		1294
		1295	$map or return;
		1296
		1297	$map->{load_original} = 1;
		1298	$map->{instantiate_time} = $cf::RUNTIME;
		1299	$map->last_access ($cf::RUNTIME);
		1300	$map->instantiate;
		1301
		1302	# per-player maps become, after loading, normal maps
		1303	$map->per_player (0) if $path->{user_rel};
		1304	}
		1305
		1306	$map->path ($key);
		1307	$map->{path} = $path;
		1308	$map->{last_save} = $cf::RUNTIME;
		1309
		1310	Coro::cede;
		1311
		1312	if ($map->should_reset) {
		1313	$map->reset;
		1314	undef $guard;
		1315	$map = find $path
		1316	or return;
		1317	}
		1318
		1319	$cf::MAP{$key} = $map
		1320	}
		1321	}
		1322
		1323	sub load {
		1324	my ($self) = @_;
		1325
		1326	my $path = $self->{path};
		1327	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1328
		1329	return if $self->in_memory != cf::MAP_SWAPPED;
		1330
		1331	$self->in_memory (cf::MAP_LOADING);
		1332
		1333	$self->alloc;
		1334	$self->load_objects ($self->{load_path}, 1)
		1335	or return;
		1336
		1337	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1338	if delete $self->{load_original};
		1339
		1340	if (my $uniq = $path->uniq_path) {
		1341	utf8::encode $uniq;
		1342	if (aio_open $uniq, O_RDONLY, 0) {
		1343	$self->clear_unique_items;
		1344	$self->load_objects ($uniq, 0);
		1345	}
		1346	}
		1347
		1348	Coro::cede;
		1349
		1350	# now do the right thing for maps
		1351	$self->link_multipart_objects;
		1352
		1353	if ($self->{path}->is_style_map) {
		1354	$self->{deny_save} = 1;
		1355	$self->{deny_reset} = 1;
		1356	} else {
		1357	$self->fix_auto_apply;
		1358	$self->decay_objects;
		1359	$self->update_buttons;
		1360	$self->set_darkness_map;
		1361	$self->difficulty ($self->estimate_difficulty)
		1362	unless $self->difficulty;
		1363	$self->activate;
		1364	}
		1365
		1366	Coro::cede;
		1367
		1368	$self->in_memory (cf::MAP_IN_MEMORY);
		1369	}
		1370
		1371	sub find_sync {
		1372	my ($path, $origin) = @_;
		1373
		1374	cf::sync_job { cf::map::find $path, $origin }
		1375	}
		1376
		1377	sub do_load_sync {
		1378	my ($map) = @_;
		1379
		1380	cf::sync_job { $map->load };
		1381	}
		1382
		1383	sub save {
		1384	my ($self) = @_;
		1385
		1386	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1387
		1388	$self->{last_save} = $cf::RUNTIME;
		1389
		1390	return unless $self->dirty;
		1391
		1392	my $save = $self->{path}->save_path; utf8::encode $save;
		1393	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1394
		1395	$self->{load_path} = $save;
		1396
		1397	return if $self->{deny_save};
		1398
		1399	local $self->{last_access} = $self->last_access;#d#
		1400
		1401	cf::async {
		1402	$_->contr->save for $self->players;
		1403	};
		1404
		1405	if ($uniq) {
		1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1407	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1408	} else {
		1409	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1410	}
		1411	}
		1412
		1413	sub swap_out {
		1414	my ($self) = @_;
		1415
		1416	# save first because save cedes
		1417	$self->save;
		1418
		1419	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1420
		1421	return if $self->players;
		1422	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1423	return if $self->{deny_save};
		1424
		1425	$self->clear;
		1426	$self->in_memory (cf::MAP_SWAPPED);
		1427	}
		1428
		1429	sub reset_at {
		1430	my ($self) = @_;
		1431
		1432	# TODO: safety, remove and allow resettable per-player maps
		1433	return 1e99 if $self->{path}{user_rel};
		1434	return 1e99 if $self->{deny_reset};
		1435
		1436	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1437	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1438
		1439	$time + $to
		1440	}
		1441
		1442	sub should_reset {
		1443	my ($self) = @_;
		1444
		1445	$self->reset_at <= $cf::RUNTIME
		1446	}
		1447
		1448	sub unlink_save {
		1449	my ($self) = @_;
		1450
		1451	utf8::encode (my $save = $self->{path}->save_path);
		1452	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1453	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1454	}
		1455
		1456	sub rename {
		1457	my ($self, $new_path) = @_;
		1458
		1459	$self->unlink_save;
		1460
		1461	delete $cf::MAP{$self->path};
		1462	$self->{path} = new cf::path $new_path;
		1463	$self->path ($self->{path}->as_string);
		1464	$cf::MAP{$self->path} = $self;
		1465
		1466	$self->save;
		1467	}
		1468
		1469	sub reset {
		1470	my ($self) = @_;
		1471
		1472	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1473
		1474	return if $self->players;
		1475	return if $self->{path}{user_rel};#d#
		1476
		1477	warn "resetting map ", $self->path;#d#
		1478
		1479	delete $cf::MAP{$self->path};
		1480
		1481	$_->clear_links_to ($self) for values %cf::MAP;
		1482
		1483	$self->unlink_save;
		1484	$self->destroy;
		1485	}
		1486
		1487	my $nuke_counter = "aaaa";
		1488
		1489	sub nuke {
		1490	my ($self) = @_;
		1491
		1492	$self->{deny_save} = 1;
		1493	$self->reset_timeout (1);
		1494	$self->rename ("{nuke}/" . ($nuke_counter++));
		1495	$self->reset; # polite request, might not happen
		1496	}
		1497
		1498	sub customise_for {
		1499	my ($map, $ob) = @_;
		1500
		1501	if ($map->per_player) {
		1502	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1503	}
		1504
		1505	$map
		1506	}
		1507
		1508	sub emergency_save {
		1509	my $freeze_guard = cf::freeze_mainloop;
		1510
		1511	warn "enter emergency perl save\n";
		1512
		1513	cf::sync_job {
		1514	warn "begin emergency player save\n";
		1515	$_->save for values %cf::PLAYER;
		1516	warn "end emergency player save\n";
		1517
		1518	warn "begin emergency map save\n";
		1519	$_->save for values %cf::MAP;
		1520	warn "end emergency map save\n";
		1521	};
		1522
		1523	warn "leave emergency perl save\n";
		1524	}
		1525
		1526	package cf;
		1527
		1528	=back
		1529
		1530
		1531	=head3 cf::object::player
		1532
		1533	=over 4
788		1534
789	=item $player_object->reply ($npc, $msg[, $flags])	1535	=item $player_object->reply ($npc, $msg[, $flags])
790		1536
791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1537	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	1538	can be C<undef>. Does the right thing when the player is currently in a
…		…
794		1540
795	=cut	1541	=cut
796		1542
797	# rough implementation of a future "reply" method that works	1543	# rough implementation of a future "reply" method that works
798	# with dialog boxes.	1544	# with dialog boxes.
		1545	#TODO: the first argument must go, split into a $npc->reply_to ( method
799	sub cf::object::player::reply($$$;$) {	1546	sub cf::object::player::reply($$$;$) {
800	my ($self, $npc, $msg, $flags) = @_;	1547	my ($self, $npc, $msg, $flags) = @_;
801		1548
802	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1549	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
803		1550
…		…
807	$msg = $npc->name . " says: $msg" if $npc;	1554	$msg = $npc->name . " says: $msg" if $npc;
808	$self->message ($msg, $flags);	1555	$self->message ($msg, $flags);
809	}	1556	}
810	}	1557	}
811		1558
812	=item $player->ext_reply ($msgid, $msgtype, %msg)
813
814	Sends an ext reply to the player.
815
816	=cut
817
818	sub cf::player::ext_reply($$$%) {
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")	1559	=item $player_object->may ("access")
827		1560
828	Returns wether the given player is authorized to access resource "access"	1561	Returns wether the given player is authorized to access resource "access"
829	(e.g. "command_wizcast").	1562	(e.g. "command_wizcast").
830		1563
…		…
837	(ref $cf::CFG{"may_$access"}	1570	(ref $cf::CFG{"may_$access"}
838	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1571	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
839	: $cf::CFG{"may_$access"})	1572	: $cf::CFG{"may_$access"})
840	}	1573	}
841		1574
842	=cut	1575	=item $player_object->enter_link
843		1576
844	#############################################################################	1577	Freezes the player and moves him/her to a special map (C<{link}>).
		1578
		1579	The player should be reaosnably safe there for short amounts of time. You
		1580	I<MUST> call C<leave_link> as soon as possible, though.
		1581
		1582	=item $player_object->leave_link ($map, $x, $y)
		1583
		1584	Moves the player out of the specila link map onto the given map. If the
		1585	map is not valid (or omitted), the player will be moved back to the
		1586	location he/she was before the call to C<enter_link>, or, if that fails,
		1587	to the emergency map position.
		1588
		1589	Might block.
		1590
		1591	=cut
		1592
		1593	sub cf::object::player::enter_link {
		1594	my ($self) = @_;
		1595
		1596	$self->deactivate_recursive;
		1597
		1598	return if $self->map == $LINK_MAP;
		1599
		1600	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1601	if $self->map;
		1602
		1603	$self->enter_map ($LINK_MAP, 20, 20);
		1604	}
		1605
		1606	sub cf::object::player::leave_link {
		1607	my ($self, $map, $x, $y) = @_;
		1608
		1609	my $link_pos = delete $self->{_link_pos};
		1610
		1611	unless ($map) {
		1612	# restore original map position
		1613	($map, $x, $y) = @{ $link_pos || [] };
		1614	$map = cf::map::find $map;
		1615
		1616	unless ($map) {
		1617	($map, $x, $y) = @$EMERGENCY_POSITION;
		1618	$map = cf::map::find $map
		1619	or die "FATAL: cannot load emergency map\n";
		1620	}
		1621	}
		1622
		1623	($x, $y) = (-1, -1)
		1624	unless (defined $x) && (defined $y);
		1625
		1626	# use -1 or undef as default coordinates, not 0, 0
		1627	($x, $y) = ($map->enter_x, $map->enter_y)
		1628	if $x <=0 && $y <= 0;
		1629
		1630	$map->load;
		1631
		1632	return unless $self->contr->active;
		1633	$self->activate_recursive;
		1634	$self->enter_map ($map, $x, $y);
		1635	}
		1636
		1637	cf::player->attach (
		1638	on_logout => sub {
		1639	my ($pl) = @_;
		1640
		1641	# abort map switching before logout
		1642	if ($pl->ob->{_link_pos}) {
		1643	cf::sync_job {
		1644	$pl->ob->leave_link
		1645	};
		1646	}
		1647	},
		1648	on_login => sub {
		1649	my ($pl) = @_;
		1650
		1651	# try to abort aborted map switching on player login :)
		1652	# should happen only on crashes
		1653	if ($pl->ob->{_link_pos}) {
		1654	$pl->ob->enter_link;
		1655	(async {
		1656	# we need this sleep as the login has a concurrent enter_exit running
		1657	# and this sleep increases chances of the player not ending up in scorn
		1658	$pl->ob->reply (undef,
		1659	"There was an internal problem at your last logout, "
		1660	. "the server will try to bring you to your intended destination in a second.",
		1661	cf::NDI_RED);
		1662	Coro::Timer::sleep 1;
		1663	$pl->ob->leave_link;
		1664	})->prio (2);
		1665	}
		1666	},
		1667	);
		1668
		1669	=item $player_object->goto ($path, $x, $y)
		1670
		1671	=cut
		1672
		1673	sub cf::object::player::goto {
		1674	my ($self, $path, $x, $y) = @_;
		1675
		1676	$self->enter_link;
		1677
		1678	(async {
		1679	$path = new cf::path $path;
		1680
		1681	my $map = cf::map::find $path->as_string;
		1682	$map = $map->customise_for ($self) if $map;
		1683
		1684	# warn "entering ", $map->path, " at ($x, $y)\n"
		1685	# if $map;
		1686
		1687	$map or $map->cluck ("oy");#d#
		1688	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1689
		1690	$self->leave_link ($map, $x, $y);
		1691	})->prio (1);
		1692	}
		1693
		1694	=item $player_object->enter_exit ($exit_object)
		1695
		1696	=cut
		1697
		1698	sub parse_random_map_params {
		1699	my ($spec) = @_;
		1700
		1701	my $rmp = { # defaults
		1702	xsize => 10,
		1703	ysize => 10,
		1704	};
		1705
		1706	for (split /\n/, $spec) {
		1707	my ($k, $v) = split /\s+/, $_, 2;
		1708
		1709	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1710	}
		1711
		1712	$rmp
		1713	}
		1714
		1715	sub prepare_random_map {
		1716	my ($exit) = @_;
		1717
		1718	# all this does is basically replace the /! path by
		1719	# a new random map path (?random/...) with a seed
		1720	# that depends on the exit object
		1721
		1722	my $rmp = parse_random_map_params $exit->msg;
		1723
		1724	if ($exit->map) {
		1725	$rmp->{region} = $exit->map->region_name;
		1726	$rmp->{origin_map} = $exit->map->path;
		1727	$rmp->{origin_x} = $exit->x;
		1728	$rmp->{origin_y} = $exit->y;
		1729	}
		1730
		1731	$rmp->{random_seed} ||= $exit->random_seed;
		1732
		1733	my $data = cf::to_json $rmp;
		1734	my $md5 = Digest::MD5::md5_hex $data;
		1735
		1736	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1737	aio_write $fh, 0, (length $data), $data, 0;
		1738
		1739	$exit->slaying ("?random/$md5");
		1740	$exit->msg (undef);
		1741	}
		1742	}
		1743
		1744	sub cf::object::player::enter_exit {
		1745	my ($self, $exit) = @_;
		1746
		1747	return unless $self->type == cf::PLAYER;
		1748
		1749	$self->enter_link;
		1750
		1751	(async {
		1752	$self->deactivate_recursive; # just to be sure
		1753	unless (eval {
		1754	prepare_random_map $exit
		1755	if $exit->slaying eq "/!";
		1756
		1757	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1758	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1759
		1760	1;
		1761	}) {
		1762	$self->message ("Something went wrong deep within the crossfire server. "
		1763	. "I'll try to bring you back to the map you were before. "
		1764	. "Please report this to the dungeon master",
		1765	cf::NDI_UNIQUE | cf::NDI_RED);
		1766
		1767	warn "ERROR in enter_exit: $@";
		1768	$self->leave_link;
		1769	}
		1770	})->prio (1);
		1771	}
		1772
		1773	=head3 cf::client
		1774
		1775	=over 4
		1776
		1777	=item $client->send_drawinfo ($text, $flags)
		1778
		1779	Sends a drawinfo packet to the client. Circumvents output buffering so
		1780	should not be used under normal circumstances.
		1781
		1782	=cut
		1783
		1784	sub cf::client::send_drawinfo {
		1785	my ($self, $text, $flags) = @_;
		1786
		1787	utf8::encode $text;
		1788	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1789	}
		1790
		1791
		1792	=item $success = $client->query ($flags, "text", \&cb)
		1793
		1794	Queues a query to the client, calling the given callback with
		1795	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1796	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1797
		1798	Queries can fail, so check the return code. Or don't, as queries will become
		1799	reliable at some point in the future.
		1800
		1801	=cut
		1802
		1803	sub cf::client::query {
		1804	my ($self, $flags, $text, $cb) = @_;
		1805
		1806	return unless $self->state == ST_PLAYING
		1807	|| $self->state == ST_SETUP
		1808	|| $self->state == ST_CUSTOM;
		1809
		1810	$self->state (ST_CUSTOM);
		1811
		1812	utf8::encode $text;
		1813	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1814
		1815	$self->send_packet ($self->{query_queue}[0][0])
		1816	if @{ $self->{query_queue} } == 1;
		1817	}
		1818
		1819	cf::client->attach (
		1820	on_reply => sub {
		1821	my ($ns, $msg) = @_;
		1822
		1823	# this weird shuffling is so that direct followup queries
		1824	# get handled first
		1825	my $queue = delete $ns->{query_queue}
		1826	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1827
		1828	(shift @$queue)->[1]->($msg);
		1829
		1830	push @{ $ns->{query_queue} }, @$queue;
		1831
		1832	if (@{ $ns->{query_queue} } == @$queue) {
		1833	if (@$queue) {
		1834	$ns->send_packet ($ns->{query_queue}[0][0]);
		1835	} else {
		1836	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1837	}
		1838	}
		1839	},
		1840	);
		1841
		1842	=item $client->async (\&cb)
		1843
		1844	Create a new coroutine, running the specified callback. The coroutine will
		1845	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1846	or loss of connection).
		1847
		1848	=cut
		1849
		1850	sub cf::client::async {
		1851	my ($self, $cb) = @_;
		1852
		1853	my $coro = &Coro::async ($cb);
		1854
		1855	$coro->on_destroy (sub {
		1856	delete $self->{_coro}{$coro+0};
		1857	});
		1858
		1859	$self->{_coro}{$coro+0} = $coro;
		1860
		1861	$coro
		1862	}
		1863
		1864	cf::client->attach (
		1865	on_destroy => sub {
		1866	my ($ns) = @_;
		1867
		1868	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1869	},
		1870	);
		1871
		1872	=back
		1873
845		1874
846	=head2 SAFE SCRIPTING	1875	=head2 SAFE SCRIPTING
847		1876
848	Functions that provide a safe environment to compile and execute	1877	Functions that provide a safe environment to compile and execute
849	snippets of perl code without them endangering the safety of the server	1878	snippets of perl code without them endangering the safety of the server
…		…
864		1893
865	=pod	1894	=pod
866		1895
867	The following fucntions and emthods are available within a safe environment:	1896	The following fucntions and emthods are available within a safe environment:
868		1897
869	cf::object contr pay_amount pay_player	1898	cf::object contr pay_amount pay_player map
870	cf::object::player player	1899	cf::object::player player
871	cf::player peaceful	1900	cf::player peaceful
		1901	cf::map trigger
872		1902
873	=cut	1903	=cut
874		1904
875	for (	1905	for (
876	["cf::object" => qw(contr pay_amount pay_player)],	1906	["cf::object" => qw(contr pay_amount pay_player map)],
877	["cf::object::player" => qw(player)],	1907	["cf::object::player" => qw(player)],
878	["cf::player" => qw(peaceful)],	1908	["cf::player" => qw(peaceful)],
		1909	["cf::map" => qw(trigger)],
879	) {	1910	) {
880	no strict 'refs';	1911	no strict 'refs';
881	my ($pkg, @funs) = @$_;	1912	my ($pkg, @funs) = @$_;
882	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1913	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
883	for @funs;	1914	for @funs;
…		…
999		2030
1000	{	2031	{
1001	my $path = cf::localdir . "/database.pst";	2032	my $path = cf::localdir . "/database.pst";
1002		2033
1003	sub db_load() {	2034	sub db_load() {
1004	warn "loading database $path\n";#d# remove later
1005	$DB = stat $path ? Storable::retrieve $path : { };	2035	$DB = stat $path ? Storable::retrieve $path : { };
1006	}	2036	}
1007		2037
1008	my $pid;	2038	my $pid;
1009		2039
1010	sub db_save() {	2040	sub db_save() {
1011	warn "saving database $path\n";#d# remove later
1012	waitpid $pid, 0 if $pid;	2041	waitpid $pid, 0 if $pid;
1013	if (0 == ($pid = fork)) {	2042	if (0 == ($pid = fork)) {
1014	$DB->{_meta}{version} = 1;	2043	$DB->{_meta}{version} = 1;
1015	Storable::nstore $DB, "$path~";	2044	Storable::nstore $DB, "$path~";
1016	rename "$path~", $path;	2045	rename "$path~", $path;
…		…
1023	sub db_sync() {	2052	sub db_sync() {
1024	db_save if $dirty;	2053	db_save if $dirty;
1025	undef $dirty;	2054	undef $dirty;
1026	}	2055	}
1027		2056
1028	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	2057	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1029	db_sync;	2058	db_sync;
1030	});	2059	});
1031		2060
1032	sub db_dirty() {	2061	sub db_dirty() {
1033	$dirty = 1;	2062	$dirty = 1;
…		…
1047	$DB->{$_[0]} = $_[1];	2076	$DB->{$_[0]} = $_[1];
1048	}	2077	}
1049	db_dirty;	2078	db_dirty;
1050	}	2079	}
1051		2080
1052	attach_global	2081	cf::global->attach (
1053	prio => 10000,	2082	prio => 10000,
1054	on_cleanup => sub {	2083	on_cleanup => sub {
1055	db_sync;	2084	db_sync;
1056	},	2085	},
1057	;	2086	);
1058	}	2087	}
1059		2088
1060	#############################################################################	2089	#############################################################################
1061	# the server's main()	2090	# the server's main()
1062		2091
…		…
1064	open my $fh, "<:utf8", cf::confdir . "/config"	2093	open my $fh, "<:utf8", cf::confdir . "/config"
1065	or return;	2094	or return;
1066		2095
1067	local $/;	2096	local $/;
1068	*CFG = YAML::Syck::Load <$fh>;	2097	*CFG = YAML::Syck::Load <$fh>;
		2098
		2099	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2100
		2101	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2102	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2103
		2104	if (exists $CFG{mlockall}) {
		2105	eval {
		2106	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2107	and die "WARNING: m(un)lockall failed: $!\n";
		2108	};
		2109	warn $@ if $@;
		2110	}
1069	}	2111	}
1070		2112
1071	sub main {	2113	sub main {
		2114	# we must not ever block the main coroutine
		2115	local $Coro::idle = sub {
		2116	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2117	async { Event::one_event };
		2118	};
		2119
1072	cfg_load;	2120	cfg_load;
1073	db_load;	2121	db_load;
1074	load_extensions;	2122	load_extensions;
1075	Event::loop;	2123	Event::loop;
1076	}	2124	}
1077		2125
1078	#############################################################################	2126	#############################################################################
1079	# initialisation	2127	# initialisation
1080		2128
1081	sub _perl_reload(&) {	2129	sub reload() {
1082	my ($msg) = @_;	2130	# can/must only be called in main
		2131	if ($Coro::current != $Coro::main) {
		2132	warn "can only reload from main coroutine\n";
		2133	return;
		2134	}
1083		2135
1084	$msg->("reloading...");	2136	warn "reloading...";
		2137
		2138	my $guard = freeze_mainloop;
		2139	cf::emergency_save;
1085		2140
1086	eval {	2141	eval {
		2142	# if anything goes wrong in here, we should simply crash as we already saved
		2143
1087	# cancel all watchers	2144	# cancel all watchers
1088	$_->cancel for Event::all_watchers;	2145	for (Event::all_watchers) {
		2146	$_->cancel if $_->data & WF_AUTOCANCEL;
		2147	}
		2148
		2149	# cancel all extension coros
		2150	$_->cancel for values %EXT_CORO;
		2151	%EXT_CORO = ();
1089		2152
1090	# unload all extensions	2153	# unload all extensions
1091	for (@exts) {	2154	for (@exts) {
1092	$msg->("unloading <$_>");	2155	warn "unloading <$_>";
1093	unload_extension $_;	2156	unload_extension $_;
1094	}	2157	}
1095		2158
1096	# unload all modules loaded from $LIBDIR	2159	# unload all modules loaded from $LIBDIR
1097	while (my ($k, $v) = each %INC) {	2160	while (my ($k, $v) = each %INC) {
1098	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2161	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1099		2162
1100	$msg->("removing <$k>");	2163	warn "removing <$k>";
1101	delete $INC{$k};	2164	delete $INC{$k};
1102		2165
1103	$k =~ s/\.pm$//;	2166	$k =~ s/\.pm$//;
1104	$k =~ s/\//::/g;	2167	$k =~ s/\//::/g;
1105		2168
…		…
1110	Symbol::delete_package $k;	2173	Symbol::delete_package $k;
1111	}	2174	}
1112		2175
1113	# sync database to disk	2176	# sync database to disk
1114	cf::db_sync;	2177	cf::db_sync;
		2178	IO::AIO::flush;
1115		2179
1116	# get rid of safe::, as good as possible	2180	# get rid of safe::, as good as possible
1117	Symbol::delete_package "safe::$_"	2181	Symbol::delete_package "safe::$_"
1118	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2182	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1119		2183
1120	# remove register_script_function callbacks	2184	# remove register_script_function callbacks
1121	# TODO	2185	# TODO
1122		2186
1123	# unload cf.pm "a bit"	2187	# unload cf.pm "a bit"
…		…
1126	# don't, removes xs symbols, too,	2190	# don't, removes xs symbols, too,
1127	# and global variables created in xs	2191	# and global variables created in xs
1128	#Symbol::delete_package __PACKAGE__;	2192	#Symbol::delete_package __PACKAGE__;
1129		2193
1130	# reload cf.pm	2194	# reload cf.pm
1131	$msg->("reloading cf.pm");	2195	warn "reloading cf.pm";
1132	require cf;	2196	require cf;
		2197	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1133		2198
1134	# load config and database again	2199	# load config and database again
1135	cf::cfg_load;	2200	cf::cfg_load;
1136	cf::db_load;	2201	cf::db_load;
1137		2202
1138	# load extensions	2203	# load extensions
1139	$msg->("load extensions");	2204	warn "load extensions";
1140	cf::load_extensions;	2205	cf::load_extensions;
1141		2206
1142	# reattach attachments to objects	2207	# reattach attachments to objects
1143	$msg->("reattach");	2208	warn "reattach";
1144	_global_reattach;	2209	_global_reattach;
		2210	reattach $_ for values %MAP;
1145	};	2211	};
1146	$msg->($@) if $@;
1147		2212
1148	$msg->("reloaded");	2213	if ($@) {
		2214	warn $@;
		2215	warn "error while reloading, exiting.";
		2216	exit 1;
		2217	}
		2218
		2219	warn "reloaded successfully";
1149	};	2220	};
1150		2221
1151	sub perl_reload() {	2222	#############################################################################
1152	_perl_reload {	2223
1153	warn $_[0];	2224	unless ($LINK_MAP) {
1154	print "$_[0]\n";	2225	$LINK_MAP = cf::map::new;
1155	};	2226
		2227	$LINK_MAP->width (41);
		2228	$LINK_MAP->height (41);
		2229	$LINK_MAP->alloc;
		2230	$LINK_MAP->path ("{link}");
		2231	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2232	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2233
		2234	# dirty hack because... archetypes are not yet loaded
		2235	Event->timer (
		2236	after => 10,
		2237	cb => sub {
		2238	$_[0]->w->cancel;
		2239
		2240	# provide some exits "home"
		2241	my $exit = cf::object::new "exit";
		2242
		2243	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2244	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2245	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2246
		2247	$LINK_MAP->insert ($exit->clone, 19, 19);
		2248	$LINK_MAP->insert ($exit->clone, 19, 20);
		2249	$LINK_MAP->insert ($exit->clone, 19, 21);
		2250	$LINK_MAP->insert ($exit->clone, 20, 19);
		2251	$LINK_MAP->insert ($exit->clone, 20, 21);
		2252	$LINK_MAP->insert ($exit->clone, 21, 19);
		2253	$LINK_MAP->insert ($exit->clone, 21, 20);
		2254	$LINK_MAP->insert ($exit->clone, 21, 21);
		2255
		2256	$exit->destroy;
		2257	});
		2258
		2259	$LINK_MAP->{deny_save} = 1;
		2260	$LINK_MAP->{deny_reset} = 1;
		2261
		2262	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1156	}	2263	}
1157		2264
1158	register "<global>", __PACKAGE__;	2265	register "<global>", __PACKAGE__;
1159		2266
1160	register_command "perl-reload" => sub {	2267	register_command "reload" => sub {
1161	my ($who, $arg) = @_;	2268	my ($who, $arg) = @_;
1162		2269
1163	if ($who->flag (FLAG_WIZ)) {	2270	if ($who->flag (FLAG_WIZ)) {
1164	_perl_reload {	2271	$who->message ("start of reload.");
1165	warn $_[0];	2272	reload;
1166	$who->message ($_[0]);	2273	$who->message ("end of reload.");
1167	};
1168	}	2274	}
1169	};	2275	};
1170		2276
1171	unshift @INC, $LIBDIR;	2277	unshift @INC, $LIBDIR;
1172		2278
1173	$TICK_WATCHER = Event->timer (	2279	$TICK_WATCHER = Event->timer (
		2280	reentrant => 0,
1174	prio => 1,	2281	prio => 0,
1175	async => 1,
1176	at => $NEXT_TICK || 1,	2282	at => $NEXT_TICK || $TICK,
		2283	data => WF_AUTOCANCEL,
1177	cb => sub {	2284	cb => sub {
1178	cf::server_tick; # one server iteration	2285	cf::server_tick; # one server iteration
1179		2286	$RUNTIME += $TICK;
1180	my $NOW = Event::time;
1181	$NEXT_TICK += $TICK;	2287	$NEXT_TICK += $TICK;
1182		2288
1183	# if we are delayed by four ticks or more, skip them all	2289	# if we are delayed by four ticks or more, skip them all
1184	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2290	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1185		2291
1186	$TICK_WATCHER->at ($NEXT_TICK);	2292	$TICK_WATCHER->at ($NEXT_TICK);
1187	$TICK_WATCHER->start;	2293	$TICK_WATCHER->start;
1188	},	2294	},
1189	);	2295	);
1190		2296
1191	IO::AIO::max_poll_time $TICK * 0.2;	2297	IO::AIO::max_poll_time $TICK * 0.2;
1192		2298
		2299	Event->io (
1193	Event->io (fd => IO::AIO::poll_fileno,	2300	fd => IO::AIO::poll_fileno,
1194	poll => 'r',	2301	poll => 'r',
1195	prio => 5,	2302	prio => 5,
		2303	data => WF_AUTOCANCEL,
1196	cb => \&IO::AIO::poll_cb);	2304	cb => \&IO::AIO::poll_cb,
		2305	);
		2306
		2307	Event->timer (
		2308	data => WF_AUTOCANCEL,
		2309	after => 0,
		2310	interval => 10,
		2311	cb => sub {
		2312	(Coro::unblock_sub {
		2313	write_runtime
		2314	or warn "ERROR: unable to write runtime file: $!";
		2315	})->();
		2316	},
		2317	);
		2318
		2319	END { cf::emergency_save }
1197		2320
1198	1	2321	1
1199		2322

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