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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.74 by root, Sun Oct 1 15:59:29 2006 UTC vs.
Revision 1.116 by root, Mon Jan 1 17:30:34 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;
		22	use IO::AIO 2.31 ();
10	use YAML::Syck ();	23	use YAML::Syck ();
11	use Time::HiRes;	24	use Time::HiRes;
12	use Event;	25
13	$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
14		27
15	# 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?
16	$YAML::Syck::ImplicitUnicode = 1;	29	$YAML::Syck::ImplicitUnicode = 1;
17		30
18	use strict;	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
19		32
20	_init_vars;	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
21		34
22	our %COMMAND = ();	35	our %COMMAND = ();
		36	our %COMMAND_TIME = ();
		37	our %EXTCMD = ();
		38
23	our @EVENT;	39	our @EVENT;
24	our $LIBDIR = maps_directory "perl";	40	our $LIBDIR = datadir . "/ext";
25		41
26	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
27	our $TICK_WATCHER;	43	our $TICK_WATCHER;
28	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
29		46
30	our %CFG;	47	our %CFG;
31		48
		49	our $UPTIME; $UPTIME ||= time;
		50	our $RUNTIME;
		51
		52	our %MAP; # all maps
		53	our $LINK_MAP; # the special {link} map
		54	our $FREEZE;
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO;
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		63	open my $fh, "<", cf::localdir . "/runtime"
		64	or die "unable to read runtime file: $!";
		65	$RUNTIME = <$fh> + 0.;
		66	}
		67
		68	mkdir cf::localdir;
		69	mkdir cf::localdir . "/" . cf::playerdir;
		70	mkdir cf::localdir . "/" . cf::tmpdir;
		71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
		73
		74	# a special map that is always available
		75	our $LINK_MAP;
		76
		77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		78
32	#############################################################################	79	#############################################################################
33		80
34	=head2 GLOBAL VARIABLES	81	=head2 GLOBAL VARIABLES
35		82
36	=over 4	83	=over 4
		84
		85	=item $cf::UPTIME
		86
		87	The timestamp of the server start (so not actually an uptime).
		88
		89	=item $cf::RUNTIME
		90
		91	The time this server has run, starts at 0 and is increased by $cf::TICK on
		92	every server tick.
37		93
38	=item $cf::LIBDIR	94	=item $cf::LIBDIR
39		95
40	The perl library directory, where extensions and cf-specific modules can	96	The perl library directory, where extensions and cf-specific modules can
41	be found. It will be added to C<@INC> automatically.	97	be found. It will be added to C<@INC> automatically.
		98
		99	=item $cf::NOW
		100
		101	The time of the last (current) server tick.
42		102
43	=item $cf::TICK	103	=item $cf::TICK
44		104
45	The interval between server ticks, in seconds.	105	The interval between server ticks, in seconds.
46		106
…		…
54	=cut	114	=cut
55		115
56	BEGIN {	116	BEGIN {
57	*CORE::GLOBAL::warn = sub {	117	*CORE::GLOBAL::warn = sub {
58	my $msg = join "", @_;	118	my $msg = join "", @_;
		119	utf8::encode $msg;
		120
59	$msg .= "\n"	121	$msg .= "\n"
60	unless $msg =~ /\n$/;	122	unless $msg =~ /\n$/;
61		123
62	print STDERR "cfperl: $msg";
63	LOG llevError, "cfperl: $msg";	124	LOG llevError, "cfperl: $msg";
64	};	125	};
65	}	126	}
66		127
		128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
67	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
68		134
69	# we bless all objects into (empty) derived classes to force a method lookup	135	# we bless all objects into (empty) derived classes to force a method lookup
70	# within the Safe compartment.	136	# within the Safe compartment.
71	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	137	for my $pkg (qw(
		138	cf::global cf::attachable
		139	cf::object cf::object::player
		140	cf::client cf::player
		141	cf::arch cf::living
		142	cf::map cf::party cf::region
		143	)) {
72	no strict 'refs';	144	no strict 'refs';
73	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
74	}	146	}
75		147
76	$Event::DIED = sub {	148	$Event::DIED = sub {
…		…
78	};	150	};
79		151
80	my %ext_pkg;	152	my %ext_pkg;
81	my @exts;	153	my @exts;
82	my @hook;	154	my @hook;
83	my %command;
84	my %extcmd;
85		155
86	=head2 UTILITY FUNCTIONS	156	=head2 UTILITY FUNCTIONS
87		157
88	=over 4	158	=over 4
89		159
…		…
111	sub to_json($) {	181	sub to_json($) {
112	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
113	JSON::Syck::Dump $_[0]	183	JSON::Syck::Dump $_[0]
114	}	184	}
115		185
		186	=item cf::sync_job { BLOCK }
		187
		188	The design of crossfire+ requires that the main coro ($Coro::main) is
		189	always able to handle events or runnable, as crossfire+ is only partly
		190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		191
		192	If it must be done, put the blocking parts into C<sync_job>. This will run
		193	the given BLOCK in another coroutine while waiting for the result. The
		194	server will be frozen during this time, so the block should either finish
		195	fast or be very important.
		196
		197	=cut
		198
		199	sub sync_job(&) {
		200	my ($job) = @_;
		201
		202	if ($Coro::current == $Coro::main) {
		203	# this is the main coro, too bad, we have to block
		204	# till the operation succeeds, freezing the server :/
		205
		206	# TODO: use suspend/resume instead
		207	# (but this is cancel-safe)
		208	local $FREEZE = 1;
		209
		210	my $busy = 1;
		211	my @res;
		212
		213	(Coro::async {
		214	@res = eval { $job->() };
		215	warn $@ if $@;
		216	undef $busy;
		217	})->prio (Coro::PRIO_MAX);
		218
		219	while ($busy) {
		220	Coro::cede_notself;
		221	Event::one_event unless Coro::nready;
		222	}
		223
		224	wantarray ? @res : $res[0]
		225	} else {
		226	# we are in another coroutine, how wonderful, everything just works
		227
		228	$job->()
		229	}
		230	}
		231
		232	=item $coro = cf::coro { BLOCK }
		233
		234	Creates and returns a new coro. This coro is automcatially being canceled
		235	when the extension calling this is being unloaded.
		236
		237	=cut
		238
		239	sub coro(&) {
		240	my $cb = shift;
		241
		242	my $coro; $coro = async {
		243	eval {
		244	$cb->();
		245	};
		246	warn $@ if $@;
		247	};
		248
		249	$coro->on_destroy (sub {
		250	delete $EXT_CORO{$coro+0};
		251	});
		252	$EXT_CORO{$coro+0} = $coro;
		253
		254	$coro
		255	}
		256
		257	sub write_runtime {
		258	my $runtime = cf::localdir . "/runtime";
		259
		260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		261	or return;
		262
		263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		265	and return;
		266
		267	aio_fsync $fh
		268	and return;
		269
		270	close $fh
		271	or return;
		272
		273	aio_rename "$runtime~", $runtime
		274	and return;
		275
		276	1
		277	}
		278
116	=back	279	=back
117		280
118	=cut	281	=cut
119		282
120	#############################################################################	283	#############################################################################
121		284
122	=head2 EVENTS AND OBJECT ATTACHMENTS	285	package cf::path;
		286
		287	sub new {
		288	my ($class, $path, $base) = @_;
		289
		290	$path = $path->as_string if ref $path;
		291
		292	my $self = bless { }, $class;
		293
		294	# {... are special paths that are not touched
		295	# ?xxx/... are special absolute paths
		296	# ?random/... random maps
		297	# /! non-realised random map exit
		298	# /... normal maps
		299	# ~/... per-player maps without a specific player (DO NOT USE)
		300	# ~user/... per-player map of a specific user
		301
		302	if ($path =~ /^{/) {
		303	# fine as it is
		304	} elsif ($path =~ s{^\?random/}{}) {
		305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		306	$self->{random} = cf::from_json $data;
		307	} else {
		308	if ($path =~ s{^~([^/]+)?}{}) {
		309	$self->{user_rel} = 1;
		310
		311	if (defined $1) {
		312	$self->{user} = $1;
		313	} elsif ($base =~ m{^~([^/]+)/}) {
		314	$self->{user} = $1;
		315	} else {
		316	warn "cannot resolve user-relative path without user <$path,$base>\n";
		317	}
		318	} elsif ($path =~ /^\//) {
		319	# already absolute
		320	} else {
		321	$base =~ s{[^/]+/?$}{};
		322	return $class->new ("$base/$path");
		323	}
		324
		325	for ($path) {
		326	redo if s{/\.?/}{/};
		327	redo if s{/[^/]+/\.\./}{/};
		328	}
		329	}
		330
		331	$self->{path} = $path;
		332
		333	$self
		334	}
		335
		336	# the name / primary key / in-game path
		337	sub as_string {
		338	my ($self) = @_;
		339
		340	$self->{user_rel} ? "~$self->{user}$self->{path}"
		341	: $self->{random} ? "?random/$self->{path}"
		342	: $self->{path}
		343	}
		344
		345	# the displayed name, this is a one way mapping
		346	sub visible_name {
		347	my ($self) = @_;
		348
		349	# if (my $rmp = $self->{random}) {
		350	# # todo: be more intelligent about this
		351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		352	# } else {
		353	$self->as_string
		354	# }
		355	}
		356
		357	# escape the /'s in the path
		358	sub _escaped_path {
		359	# ∕ is U+2215
		360	(my $path = $_[0]{path}) =~ s/\//∕/g;
		361	$path
		362	}
		363
		364	# the original (read-only) location
		365	sub load_path {
		366	my ($self) = @_;
		367
		368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		369	}
		370
		371	# the temporary/swap location
		372	sub save_path {
		373	my ($self) = @_;
		374
		375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		378	}
		379
		380	# the unique path, might be eq to save_path
		381	sub uniq_path {
		382	my ($self) = @_;
		383
		384	$self->{user_rel} || $self->{random}
		385	? undef
		386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		387	}
		388
		389	# return random map parameters, or undef
		390	sub random_map_params {
		391	my ($self) = @_;
		392
		393	$self->{random}
		394	}
		395
		396	# this is somewhat ugly, but style maps do need special treatment
		397	sub is_style_map {
		398	$_[0]{path} =~ m{^/styles/}
		399	}
		400
		401	package cf;
		402
		403	#############################################################################
		404
		405	=head2 ATTACHABLE OBJECTS
		406
		407	Many objects in crossfire are so-called attachable objects. That means you can
		408	attach callbacks/event handlers (a collection of which is called an "attachment")
		409	to it. All such attachable objects support the following methods.
		410
		411	In the following description, CLASS can be any of C<global>, C<object>
		412	C<player>, C<client> or C<map> (i.e. the attachable objects in
		413	crossfire+).
123		414
124	=over 4	415	=over 4
125		416
126	=item $object->attach ($attachment, key => $value...)
127
128	=item $object->detach ($attachment)
129
130	Attach/detach a pre-registered attachment to an object.
131
132	=item $player->attach ($attachment, key => $value...)
133
134	=item $player->detach ($attachment)
135
136	Attach/detach a pre-registered attachment to a player.
137
138	=item $map->attach ($attachment, key => $value...)	417	=item $attachable->attach ($attachment, key => $value...)
139		418
140	=item $map->detach ($attachment)	419	=item $attachable->detach ($attachment)
141		420
142	Attach/detach a pre-registered attachment to a map.	421	Attach/detach a pre-registered attachment to a specific object and give it
		422	the specified key/value pairs as arguments.
143		423
144	=item $bool = $object->attached ($name)	424	Example, attach a minesweeper attachment to the given object, making it a
		425	10x10 minesweeper game:
145		426
146	=item $bool = $player->attached ($name)	427	$obj->attach (minesweeper => width => 10, height => 10);
147		428
148	=item $bool = $map->attached ($name)	429	=item $bool = $attachable->attached ($name)
149		430
150	Checks wether the named attachment is currently attached to the object.	431	Checks wether the named attachment is currently attached to the object.
151		432
152	=item cf::attach_global ...	433	=item cf::CLASS->attach ...
153		434
154	Attach handlers for global events.	435	=item cf::CLASS->detach ...
155		436
156	This and all following C<attach_*>-functions expect any number of the	437	Define an anonymous attachment and attach it to all objects of the given
157	following handler/hook descriptions:	438	CLASS. See the next function for an explanation of its arguments.
		439
		440	You can attach to global events by using the C<cf::global> class.
		441
		442	Example, log all player logins:
		443
		444	cf::player->attach (
		445	on_login => sub {
		446	my ($pl) = @_;
		447	...
		448	},
		449	);
		450
		451	Example, attach to the jeweler skill:
		452
		453	cf::object->attach (
		454	type => cf::SKILL,
		455	subtype => cf::SK_JEWELER,
		456	on_use_skill => sub {
		457	my ($sk, $ob, $part, $dir, $msg) = @_;
		458	...
		459	},
		460	);
		461
		462	=item cf::CLASS::attachment $name, ...
		463
		464	Register an attachment by C<$name> through which attachable objects of the
		465	given CLASS can refer to this attachment.
		466
		467	Some classes such as crossfire maps and objects can specify attachments
		468	that are attached at load/instantiate time, thus the need for a name.
		469
		470	These calls expect any number of the following handler/hook descriptions:
158		471
159	=over 4	472	=over 4
160		473
161	=item prio => $number	474	=item prio => $number
162		475
…		…
164	by another C<prio> setting). Lower priority handlers get executed	477	by another C<prio> setting). Lower priority handlers get executed
165	earlier. The default priority is C<0>, and many built-in handlers are	478	earlier. The default priority is C<0>, and many built-in handlers are
166	registered at priority C<-1000>, so lower priorities should not be used	479	registered at priority C<-1000>, so lower priorities should not be used
167	unless you know what you are doing.	480	unless you know what you are doing.
168		481
		482	=item type => $type
		483
		484	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		485	given type of objects only (the additional parameter C<subtype> can be
		486	used to further limit to the given subtype).
		487
169	=item on_I<event> => \&cb	488	=item on_I<event> => \&cb
170		489
171	Call the given code reference whenever the named event happens (event is	490	Call the given code reference whenever the named event happens (event is
172	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	491	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
173	handlers are recognised generally depends on the type of object these	492	handlers are recognised generally depends on the type of object these
…		…
182	package and register them. Only handlers for eevents supported by the	501	package and register them. Only handlers for eevents supported by the
183	object/class are recognised.	502	object/class are recognised.
184		503
185	=back	504	=back
186		505
187	=item cf::attach_to_type $object_type, $subtype, ...	506	Example, define an attachment called "sockpuppet" that calls the given
		507	event handler when a monster attacks:
188		508
189	Attach handlers for a specific object type (e.g. TRANSPORT) and	509	cf::object::attachment sockpuppet =>
190	subtype. If C<$subtype> is zero or undef, matches all objects of the given	510	on_skill_attack => sub {
191	type.	511	my ($self, $victim) = @_;
192		512	...
193	=item cf::attach_to_objects ...
194
195	Attach handlers to all objects. Do not use this except for debugging or
196	very rare events, as handlers are (obviously) called for I<all> objects in
197	the game.
198
199	=item cf::attach_to_players ...
200
201	Attach handlers to all players.
202
203	=item cf::attach_to_maps ...
204
205	Attach handlers to all maps.
206
207	=item cf:register_attachment $name, ...
208
209	Register an attachment by name through which objects can refer to this
210	attachment.
211
212	=item cf:register_player_attachment $name, ...
213
214	Register an attachment by name through which players can refer to this
215	attachment.
216
217	=item cf:register_map_attachment $name, ...
218
219	Register an attachment by name through which maps can refer to this
220	attachment.
221
222	=cut
223
224	# the following variables are defined in .xs and must not be re-created
225	our @CB_GLOBAL = (); # registry for all global events
226	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
227	our @CB_PLAYER = ();
228	our @CB_TYPE = (); # registry for type (cf-object class) based events
229	our @CB_MAP = ();
230
231	my %attachment;
232
233	sub _attach_cb($\%$$$) {
234	my ($registry, $undo, $event, $prio, $cb) = @_;
235
236	use sort 'stable';
237
238	$cb = [$prio, $cb];
239
240	@{$registry->[$event]} = sort
241	{ $a->[0] cmp $b->[0] }
242	@{$registry->[$event] || []}, $cb;
243
244	push @{$undo->{cb}}, [$event, $cb];
245	}
246
247	# attach handles attaching event callbacks
248	# the only thing the caller has to do is pass the correct
249	# registry (== where the callback attaches to).
250	sub _attach(\@$@) {
251	my ($registry, $klass, @arg) = @_;
252
253	my $prio = 0;
254
255	my %undo = (
256	registry => $registry,
257	cb => [],
258	);
259
260	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
261
262	while (@arg) {
263	my $type = shift @arg;
264
265	if ($type eq "prio") {
266	$prio = shift @arg;
267
268	} elsif ($type eq "package") {
269	my $pkg = shift @arg;
270
271	while (my ($name, $id) = each %cb_id) {
272	if (my $cb = $pkg->can ($name)) {
273	_attach_cb $registry, %undo, $id, $prio, $cb;
274	}
275	}	513	}
276
277	} elsif (exists $cb_id{$type}) {
278	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
279
280	} elsif (ref $type) {
281	warn "attaching objects not supported, ignoring.\n";
282
283	} else {
284	shift @arg;
285	warn "attach argument '$type' not supported, ignoring.\n";
286	}
287	}
288
289	\%undo
290	}
291
292	sub _attach_attachment {
293	my ($obj, $name, %arg) = @_;
294
295	return if exists $obj->{_attachment}{$name};
296
297	my $res;
298
299	if (my $attach = $attachment{$name}) {
300	my $registry = $obj->registry;
301
302	for (@$attach) {
303	my ($klass, @attach) = @$_;
304	$res = _attach @$registry, $klass, @attach;
305	}
306
307	$obj->{$name} = \%arg;
308	} else {
309	warn "object uses attachment '$name' that is not available, postponing.\n";
310	}
311
312	$obj->{_attachment}{$name} = undef;
313
314	$res->{attachment} = $name;
315	$res
316	}
317
318	*cf::object::attach =
319	*cf::player::attach =
320	*cf::map::attach = sub {
321	my ($obj, $name, %arg) = @_;
322
323	_attach_attachment $obj, $name, %arg;
324	};
325
326	# all those should be optimised
327	*cf::object::detach =
328	*cf::player::detach =
329	*cf::map::detach = sub {
330	my ($obj, $name) = @_;
331
332	delete $obj->{_attachment}{$name};
333	reattach ($obj);
334	};
335
336	*cf::object::attached =
337	*cf::player::attached =
338	*cf::map::attached = sub {
339	my ($obj, $name) = @_;
340
341	exists $obj->{_attachment}{$name}
342	};
343
344	sub attach_global {
345	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
346	}
347
348	sub attach_to_type {
349	my $type = shift;
350	my $subtype = shift;
351
352	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
353	}
354
355	sub attach_to_objects {
356	_attach @CB_OBJECT, KLASS_OBJECT, @_
357	}
358
359	sub attach_to_players {
360	_attach @CB_PLAYER, KLASS_PLAYER, @_
361	}
362
363	sub attach_to_maps {
364	_attach @CB_MAP, KLASS_MAP, @_
365	}
366
367	sub register_attachment {
368	my $name = shift;
369
370	$attachment{$name} = [[KLASS_OBJECT, @_]];
371	}
372
373	sub register_player_attachment {
374	my $name = shift;
375
376	$attachment{$name} = [[KLASS_PLAYER, @_]];
377	}
378
379	sub register_map_attachment {
380	my $name = shift;
381
382	$attachment{$name} = [[KLASS_MAP, @_]];
383	}
384
385	our $override;
386	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
387
388	sub override {
389	$override = 1;
390	@invoke_results = ();
391	}
392
393	sub do_invoke {
394	my $event = shift;
395	my $callbacks = shift;
396
397	@invoke_results = ();
398
399	local $override;
400
401	for (@$callbacks) {
402	eval { &{$_->[1]} };
403
404	if ($@) {
405	warn "$@";
406	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
407	override;
408	}
409
410	return 1 if $override;
411	}
412
413	0	514	}
414	}
415		515
416	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	516	=item $attachable->valid
417
418	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
419
420	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
421
422	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
423
424	Generate a global/object/player/map-specific event with the given arguments.
425
426	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
427	removed in future versions), and there is no public API to access override
428	results (if you must, access C<@cf::invoke_results> directly).
429
430	=back
431
432	=cut
433
434	#############################################################################
435
436	=head2 METHODS VALID FOR ALL CORE OBJECTS
437
438	=over 4
439
440	=item $object->valid, $player->valid, $map->valid
441		517
442	Just because you have a perl object does not mean that the corresponding	518	Just because you have a perl object does not mean that the corresponding
443	C-level object still exists. If you try to access an object that has no	519	C-level object still exists. If you try to access an object that has no
444	valid C counterpart anymore you get an exception at runtime. This method	520	valid C counterpart anymore you get an exception at runtime. This method
445	can be used to test for existence of the C object part without causing an	521	can be used to test for existence of the C object part without causing an
446	exception.	522	exception.
447		523
		524	=cut
		525
		526	# the following variables are defined in .xs and must not be re-created
		527	our @CB_GLOBAL = (); # registry for all global events
		528	our @CB_ATTACHABLE = (); # registry for all attachables
		529	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		530	our @CB_PLAYER = ();
		531	our @CB_CLIENT = ();
		532	our @CB_TYPE = (); # registry for type (cf-object class) based events
		533	our @CB_MAP = ();
		534
		535	my %attachment;
		536
		537	sub _attach_cb($$$$) {
		538	my ($registry, $event, $prio, $cb) = @_;
		539
		540	use sort 'stable';
		541
		542	$cb = [$prio, $cb];
		543
		544	@{$registry->[$event]} = sort
		545	{ $a->[0] cmp $b->[0] }
		546	@{$registry->[$event] || []}, $cb;
		547	}
		548
		549	# hack
		550	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		551
		552	# attach handles attaching event callbacks
		553	# the only thing the caller has to do is pass the correct
		554	# registry (== where the callback attaches to).
		555	sub _attach {
		556	my ($registry, $klass, @arg) = @_;
		557
		558	my $object_type;
		559	my $prio = 0;
		560	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		561
		562	#TODO: get rid of this hack
		563	if ($attachable_klass{$klass}) {
		564	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		565	}
		566
		567	while (@arg) {
		568	my $type = shift @arg;
		569
		570	if ($type eq "prio") {
		571	$prio = shift @arg;
		572
		573	} elsif ($type eq "type") {
		574	$object_type = shift @arg;
		575	$registry = $CB_TYPE[$object_type] ||= [];
		576
		577	} elsif ($type eq "subtype") {
		578	defined $object_type or Carp::croak "subtype specified without type";
		579	my $object_subtype = shift @arg;
		580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		581
		582	} elsif ($type eq "package") {
		583	my $pkg = shift @arg;
		584
		585	while (my ($name, $id) = each %cb_id) {
		586	if (my $cb = $pkg->can ($name)) {
		587	_attach_cb $registry, $id, $prio, $cb;
		588	}
		589	}
		590
		591	} elsif (exists $cb_id{$type}) {
		592	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		593
		594	} elsif (ref $type) {
		595	warn "attaching objects not supported, ignoring.\n";
		596
		597	} else {
		598	shift @arg;
		599	warn "attach argument '$type' not supported, ignoring.\n";
		600	}
		601	}
		602	}
		603
		604	sub _object_attach {
		605	my ($obj, $name, %arg) = @_;
		606
		607	return if exists $obj->{_attachment}{$name};
		608
		609	if (my $attach = $attachment{$name}) {
		610	my $registry = $obj->registry;
		611
		612	for (@$attach) {
		613	my ($klass, @attach) = @$_;
		614	_attach $registry, $klass, @attach;
		615	}
		616
		617	$obj->{$name} = \%arg;
		618	} else {
		619	warn "object uses attachment '$name' that is not available, postponing.\n";
		620	}
		621
		622	$obj->{_attachment}{$name} = undef;
		623	}
		624
		625	sub cf::attachable::attach {
		626	if (ref $_[0]) {
		627	_object_attach @_;
		628	} else {
		629	_attach shift->_attach_registry, @_;
		630	}
		631	};
		632
		633	# all those should be optimised
		634	sub cf::attachable::detach {
		635	my ($obj, $name) = @_;
		636
		637	if (ref $obj) {
		638	delete $obj->{_attachment}{$name};
		639	reattach ($obj);
		640	} else {
		641	Carp::croak "cannot, currently, detach class attachments";
		642	}
		643	};
		644
		645	sub cf::attachable::attached {
		646	my ($obj, $name) = @_;
		647
		648	exists $obj->{_attachment}{$name}
		649	}
		650
		651	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		652	eval "#line " . __LINE__ . " 'cf.pm'
		653	sub cf::\L$klass\E::_attach_registry {
		654	(\\\@CB_$klass, KLASS_$klass)
		655	}
		656
		657	sub cf::\L$klass\E::attachment {
		658	my \$name = shift;
		659
		660	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		661	}
		662	";
		663	die if $@;
		664	}
		665
		666	our $override;
		667	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		668
		669	sub override {
		670	$override = 1;
		671	@invoke_results = ();
		672	}
		673
		674	sub do_invoke {
		675	my $event = shift;
		676	my $callbacks = shift;
		677
		678	@invoke_results = ();
		679
		680	local $override;
		681
		682	for (@$callbacks) {
		683	eval { &{$_->[1]} };
		684
		685	if ($@) {
		686	warn "$@";
		687	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		688	override;
		689	}
		690
		691	return 1 if $override;
		692	}
		693
		694	0
		695	}
		696
		697	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		698
		699	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		700
		701	Generate an object-specific event with the given arguments.
		702
		703	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		704	removed in future versions), and there is no public API to access override
		705	results (if you must, access C<@cf::invoke_results> directly).
		706
448	=back	707	=back
449		708
450	=cut	709	=cut
451
452	*cf::object::valid =
453	*cf::player::valid =
454	*cf::map::valid = \&cf::_valid;
455		710
456	#############################################################################	711	#############################################################################
457	# object support	712	# object support
458		713
459	sub instantiate {
460	my ($obj, $data) = @_;
461
462	$data = from_json $data;
463
464	for (@$data) {
465	my ($name, $args) = @$_;
466
467	$obj->attach ($name, %{$args || {} });
468	}
469	}
470
471	# basically do the same as instantiate, without calling instantiate
472	sub reattach {	714	sub reattach {
		715	# basically do the same as instantiate, without calling instantiate
473	my ($obj) = @_;	716	my ($obj) = @_;
		717
474	my $registry = $obj->registry;	718	my $registry = $obj->registry;
475		719
476	@$registry = ();	720	@$registry = ();
477		721
478	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	722	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
479		723
480	for my $name (keys %{ $obj->{_attachment} || {} }) {	724	for my $name (keys %{ $obj->{_attachment} || {} }) {
481	if (my $attach = $attachment{$name}) {	725	if (my $attach = $attachment{$name}) {
482	for (@$attach) {	726	for (@$attach) {
483	my ($klass, @attach) = @$_;	727	my ($klass, @attach) = @$_;
484	_attach @$registry, $klass, @attach;	728	_attach $registry, $klass, @attach;
485	}	729	}
486	} else {	730	} else {
487	warn "object uses attachment '$name' that is not available, postponing.\n";	731	warn "object uses attachment '$name' that is not available, postponing.\n";
488	}	732	}
489	}	733	}
490	}	734	}
491		735
492	sub object_freezer_save {	736	cf::attachable->attach (
493	my ($filename, $rdata, $objs) = @_;
494
495	if (length $$rdata) {
496	warn sprintf "saving %s (%d,%d)\n",
497	$filename, length $$rdata, scalar @$objs;
498
499	if (open my $fh, ">:raw", "$filename~") {
500	chmod SAVE_MODE, $fh;
501	syswrite $fh, $$rdata;
502	close $fh;
503
504	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
505	chmod SAVE_MODE, $fh;
506	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
507	close $fh;
508	rename "$filename.pst~", "$filename.pst";
509	} else {
510	unlink "$filename.pst";
511	}
512
513	rename "$filename~", $filename;
514	} else {
515	warn "FATAL: $filename~: $!\n";
516	}
517	} else {
518	unlink $filename;
519	unlink "$filename.pst";
520	}
521	}
522
523	sub object_thawer_load {
524	my ($filename) = @_;
525
526	local $/;
527
528	my $av;
529
530	#TODO: use sysread etc.
531	if (open my $data, "<:raw:perlio", $filename) {
532	$data = <$data>;
533	if (open my $pst, "<:raw:perlio", "$filename.pst") {
534	$av = eval { (Storable::thaw <$pst>)->{objs} };
535	}
536	return ($data, $av);
537	}
538
539	()
540	}
541
542	attach_to_objects
543	prio => -1000000,	737	prio => -1000000,
		738	on_instantiate => sub {
		739	my ($obj, $data) = @_;
		740
		741	$data = from_json $data;
		742
		743	for (@$data) {
		744	my ($name, $args) = @$_;
		745
		746	$obj->attach ($name, %{$args || {} });
		747	}
		748	},
		749	on_reattach => \&reattach,
544	on_clone => sub {	750	on_clone => sub {
545	my ($src, $dst) = @_;	751	my ($src, $dst) = @_;
546		752
547	@{$dst->registry} = @{$src->registry};	753	@{$dst->registry} = @{$src->registry};
548		754
549	%$dst = %$src;	755	%$dst = %$src;
550		756
551	%{$dst->{_attachment}} = %{$src->{_attachment}}	757	%{$dst->{_attachment}} = %{$src->{_attachment}}
552	if exists $src->{_attachment};	758	if exists $src->{_attachment};
553	},	759	},
554	;	760	);
		761
		762	sub object_freezer_save {
		763	my ($filename, $rdata, $objs) = @_;
		764
		765	sync_job {
		766	if (length $$rdata) {
		767	warn sprintf "saving %s (%d,%d)\n",
		768	$filename, length $$rdata, scalar @$objs;
		769
		770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		771	chmod SAVE_MODE, $fh;
		772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		773	aio_fsync $fh;
		774	close $fh;
		775
		776	if (@$objs) {
		777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		778	chmod SAVE_MODE, $fh;
		779	my $data = Storable::nfreeze { version => 1, objs => $objs };
		780	aio_write $fh, 0, (length $data), $data, 0;
		781	aio_fsync $fh;
		782	close $fh;
		783	aio_rename "$filename.pst~", "$filename.pst";
		784	}
		785	} else {
		786	aio_unlink "$filename.pst";
		787	}
		788
		789	aio_rename "$filename~", $filename;
		790	} else {
		791	warn "FATAL: $filename~: $!\n";
		792	}
		793	} else {
		794	aio_unlink $filename;
		795	aio_unlink "$filename.pst";
		796	}
		797	}
		798	}
		799
		800	sub object_freezer_as_string {
		801	my ($rdata, $objs) = @_;
		802
		803	use Data::Dumper;
		804
		805	$$rdata . Dumper $objs
		806	}
		807
		808	sub object_thawer_load {
		809	my ($filename) = @_;
		810
		811	my ($data, $av);
		812
		813	(aio_load $filename, $data) >= 0
		814	or return;
		815
		816	unless (aio_stat "$filename.pst") {
		817	(aio_load "$filename.pst", $av) >= 0
		818	or return;
		819	$av = eval { (Storable::thaw $av)->{objs} };
		820	}
		821
		822	return ($data, $av);
		823	}
555		824
556	#############################################################################	825	#############################################################################
557	# old plug-in events	826	# command handling &c
558		827
559	sub inject_event {	828	=item cf::register_command $name => \&callback($ob,$args);
560	my $extension = shift;
561	my $event_code = shift;
562		829
563	my $cb = $hook[$event_code]{$extension}	830	Register a callback for execution when the client sends the user command
564	or return;	831	$name.
565		832
566	&$cb	833	=cut
567	}
568
569	sub inject_global_event {
570	my $event = shift;
571
572	my $cb = $hook[$event]
573	or return;
574
575	List::Util::max map &$_, values %$cb
576	}
577
578	sub inject_command {
579	my ($name, $obj, $params) = @_;
580
581	for my $cmd (@{ $command{$name} }) {
582	$cmd->[1]->($obj, $params);
583	}
584
585	-1
586	}
587		834
588	sub register_command {	835	sub register_command {
589	my ($name, $time, $cb) = @_;	836	my ($name, $cb) = @_;
590		837
591	my $caller = caller;	838	my $caller = caller;
592	#warn "registering command '$name/$time' to '$caller'";	839	#warn "registering command '$name/$time' to '$caller'";
593		840
594	push @{ $command{$name} }, [$time, $cb, $caller];	841	push @{ $COMMAND{$name} }, [$caller, $cb];
595	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
596	}	842	}
		843
		844	=item cf::register_extcmd $name => \&callback($pl,$packet);
		845
		846	Register a callbackf ro execution when the client sends an extcmd packet.
		847
		848	If the callback returns something, it is sent back as if reply was being
		849	called.
		850
		851	=cut
597		852
598	sub register_extcmd {	853	sub register_extcmd {
599	my ($name, $cb) = @_;	854	my ($name, $cb) = @_;
600		855
601	my $caller = caller;	856	my $caller = caller;
602	#warn "registering extcmd '$name' to '$caller'";	857	#warn "registering extcmd '$name' to '$caller'";
603		858
604	$extcmd{$name} = [$cb, $caller];	859	$EXTCMD{$name} = [$cb, $caller];
605	}	860	}
		861
		862	cf::player->attach (
		863	on_command => sub {
		864	my ($pl, $name, $params) = @_;
		865
		866	my $cb = $COMMAND{$name}
		867	or return;
		868
		869	for my $cmd (@$cb) {
		870	$cmd->[1]->($pl->ob, $params);
		871	}
		872
		873	cf::override;
		874	},
		875	on_extcmd => sub {
		876	my ($pl, $buf) = @_;
		877
		878	my $msg = eval { from_json $buf };
		879
		880	if (ref $msg) {
		881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		882	if (my %reply = $cb->[0]->($pl, $msg)) {
		883	$pl->ext_reply ($msg->{msgid}, %reply);
		884	}
		885	}
		886	} else {
		887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		888	}
		889
		890	cf::override;
		891	},
		892	);
606		893
607	sub register {	894	sub register {
608	my ($base, $pkg) = @_;	895	my ($base, $pkg) = @_;
609		896
610	#TODO	897	#TODO
…		…
629	. "#line 1 \"$path\"\n{\n"	916	. "#line 1 \"$path\"\n{\n"
630	. (do { local $/; <$fh> })	917	. (do { local $/; <$fh> })
631	. "\n};\n1";	918	. "\n};\n1";
632		919
633	eval $source	920	eval $source
634	or die "$path: $@";	921	or die $@ ? "$path: $@\n"
		922	: "extension disabled.\n";
635		923
636	push @exts, $pkg;	924	push @exts, $pkg;
637	$ext_pkg{$base} = $pkg;	925	$ext_pkg{$base} = $pkg;
638		926
639	# no strict 'refs';	927	# no strict 'refs';
…		…
652	# for my $idx (0 .. $#PLUGIN_EVENT) {	940	# for my $idx (0 .. $#PLUGIN_EVENT) {
653	# delete $hook[$idx]{$pkg};	941	# delete $hook[$idx]{$pkg};
654	# }	942	# }
655		943
656	# remove commands	944	# remove commands
657	for my $name (keys %command) {	945	for my $name (keys %COMMAND) {
658	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
659		947
660	if (@cb) {	948	if (@cb) {
661	$command{$name} = \@cb;	949	$COMMAND{$name} = \@cb;
662	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
663	} else {	950	} else {
664	delete $command{$name};
665	delete $COMMAND{"$name\000"};	951	delete $COMMAND{$name};
666	}	952	}
667	}	953	}
668		954
669	# remove extcmds	955	# remove extcmds
670	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
671	delete $extcmd{$name};	957	delete $EXTCMD{$name};
672	}	958	}
673		959
674	if (my $cb = $pkg->can ("unload")) {	960	if (my $cb = $pkg->can ("unload")) {
675	eval {	961	eval {
676	$cb->($pkg);	962	$cb->($pkg);
…		…
680		966
681	Symbol::delete_package $pkg;	967	Symbol::delete_package $pkg;
682	}	968	}
683		969
684	sub load_extensions {	970	sub load_extensions {
685	my $LIBDIR = maps_directory "perl";
686
687	for my $ext (<$LIBDIR/*.ext>) {	971	for my $ext (<$LIBDIR/*.ext>) {
688	next unless -r $ext;	972	next unless -r $ext;
689	eval {	973	eval {
690	load_extension $ext;	974	load_extension $ext;
691	1	975	1
692	} or warn "$ext not loaded: $@";	976	} or warn "$ext not loaded: $@";
693	}	977	}
694	}	978	}
695		979
696	#############################################################################	980	#############################################################################
697	# extcmd framework, basically convert ext <msg>
698	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
699
700	attach_to_players
701	on_extcmd => sub {
702	my ($pl, $buf) = @_;
703
704	my $msg = eval { from_json $buf };
705
706	if (ref $msg) {
707	if (my $cb = $extcmd{$msg->{msgtype}}) {
708	if (my %reply = $cb->[0]->($pl, $msg)) {
709	$pl->ext_reply ($msg->{msgid}, %reply);
710	}
711	}
712	} else {
713	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
714	}
715
716	cf::override;
717	},
718	;
719
720	#############################################################################
721	# load/save/clean perl data associated with a map	981	# load/save/clean perl data associated with a map
722		982
723	*cf::mapsupport::on_clean = sub {	983	*cf::mapsupport::on_clean = sub {
724	my ($map) = @_;	984	my ($map) = @_;
725		985
…		…
727	defined $path or return;	987	defined $path or return;
728		988
729	unlink "$path.pst";	989	unlink "$path.pst";
730	};	990	};
731		991
732	attach_to_maps prio => -10000, package => cf::mapsupport::;	992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
733		993
734	#############################################################################	994	#############################################################################
735	# load/save perl data associated with player->ob objects	995	# load/save perl data associated with player->ob objects
736		996
737	sub all_objects(@) {	997	sub all_objects(@) {
738	@_, map all_objects ($_->inv), @_	998	@_, map all_objects ($_->inv), @_
739	}	999	}
740		1000
741	# TODO: compatibility cruft, remove when no longer needed	1001	# TODO: compatibility cruft, remove when no longer needed
742	attach_to_players	1002	cf::player->attach (
743	on_load => sub {	1003	on_load => sub {
744	my ($pl, $path) = @_;	1004	my ($pl, $path) = @_;
745		1005
746	for my $o (all_objects $pl->ob) {	1006	for my $o (all_objects $pl->ob) {
747	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
749		1009
750	%$o = %{ Storable::thaw pack "H*", $value };	1010	%$o = %{ Storable::thaw pack "H*", $value };
751	}	1011	}
752	}	1012	}
753	},	1013	},
754	;	1014	);
755		1015
756	#############################################################################	1016	#############################################################################
757		1017
758	=head2 CORE EXTENSIONS	1018	=head2 CORE EXTENSIONS
759		1019
760	Functions and methods that extend core crossfire objects.	1020	Functions and methods that extend core crossfire objects.
		1021
		1022	=head3 cf::player
761		1023
762	=over 4	1024	=over 4
763		1025
764	=item cf::player::exists $login	1026	=item cf::player::exists $login
765		1027
…		…
770	sub cf::player::exists($) {	1032	sub cf::player::exists($) {
771	cf::player::find $_[0]	1033	cf::player::find $_[0]
772	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1034	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
773	}	1035	}
774		1036
		1037	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1038
		1039	Sends an ext reply to the player.
		1040
		1041	=cut
		1042
		1043	sub cf::player::ext_reply($$$%) {
		1044	my ($self, $id, %msg) = @_;
		1045
		1046	$msg{msgid} = $id;
		1047
		1048	$self->send ("ext " . to_json \%msg);
		1049	}
		1050
		1051	=back
		1052
		1053
		1054	=head3 cf::map
		1055
		1056	=over 4
		1057
		1058	=cut
		1059
		1060	package cf::map;
		1061
		1062	use Fcntl;
		1063	use Coro::AIO;
		1064
		1065	our $MAX_RESET = 7200;
		1066	our $DEFAULT_RESET = 3600;
		1067
		1068	sub generate_random_map {
		1069	my ($path, $rmp) = @_;
		1070
		1071	# mit "rum" bekleckern, nicht
		1072	cf::map::_create_random_map
		1073	$path,
		1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1077	$rmp->{exit_on_final_map},
		1078	$rmp->{xsize}, $rmp->{ysize},
		1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1082	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1084	(cf::region::find $rmp->{region})
		1085	}
		1086
		1087	# and all this just because we cannot iterate over
		1088	# all maps in C++...
		1089	sub change_all_map_light {
		1090	my ($change) = @_;
		1091
		1092	$_->change_map_light ($change) for values %cf::MAP;
		1093	}
		1094
		1095	sub try_load_header($) {
		1096	my ($path) = @_;
		1097
		1098	utf8::encode $path;
		1099	aio_open $path, O_RDONLY, 0
		1100	or return;
		1101
		1102	my $map = cf::map::new
		1103	or return;
		1104
		1105	$map->load_header ($path)
		1106	or return;
		1107
		1108	$map->{load_path} = $path;
		1109
		1110	$map
		1111	}
		1112
		1113	sub find_map {
		1114	my ($path, $origin) = @_;
		1115
		1116	#warn "find_map<$path,$origin>\n";#d#
		1117
		1118	$path = new cf::path $path, $origin && $origin->path;
		1119	my $key = $path->as_string;
		1120
		1121	$cf::MAP{$key} || do {
		1122	# do it the slow way
		1123	my $map = try_load_header $path->save_path;
		1124
		1125	if ($map) {
		1126	# safety
		1127	$map->{instantiate_time} = $cf::RUNTIME
		1128	if $map->{instantiate_time} > $cf::RUNTIME;
		1129	} else {
		1130	if (my $rmp = $path->random_map_params) {
		1131	$map = generate_random_map $key, $rmp;
		1132	} else {
		1133	$map = try_load_header $path->load_path;
		1134	}
		1135
		1136	$map or return;
		1137
		1138	$map->{load_original} = 1;
		1139	$map->{instantiate_time} = $cf::RUNTIME;
		1140	$map->instantiate;
		1141
		1142	# per-player maps become, after loading, normal maps
		1143	$map->per_player (0) if $path->{user_rel};
		1144	}
		1145
		1146	$map->path ($key);
		1147	$map->{path} = $path;
		1148	$map->{last_save} = $cf::RUNTIME;
		1149	$map->last_access ($cf::RUNTIME);
		1150
		1151	if ($map->should_reset) {
		1152	$map->reset;
		1153	$map = find_map $path;
		1154	}
		1155
		1156	$cf::MAP{$key} = $map
		1157	}
		1158	}
		1159
		1160	sub load {
		1161	my ($self) = @_;
		1162
		1163	return if $self->in_memory != cf::MAP_SWAPPED;
		1164
		1165	$self->in_memory (cf::MAP_LOADING);
		1166
		1167	my $path = $self->{path};
		1168
		1169	$self->alloc;
		1170	$self->load_objects ($self->{load_path}, 1)
		1171	or return;
		1172
		1173	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1174	if delete $self->{load_original};
		1175
		1176	if (my $uniq = $path->uniq_path) {
		1177	utf8::encode $uniq;
		1178	if (aio_open $uniq, O_RDONLY, 0) {
		1179	$self->clear_unique_items;
		1180	$self->load_objects ($uniq, 0);
		1181	}
		1182	}
		1183
		1184	# now do the right thing for maps
		1185	$self->link_multipart_objects;
		1186
		1187	if ($self->{path}->is_style_map) {
		1188	$self->{deny_save} = 1;
		1189	$self->{deny_reset} = 1;
		1190	} else {
		1191	$self->fix_auto_apply;
		1192	$self->decay_objects;
		1193	$self->update_buttons;
		1194	$self->set_darkness_map;
		1195	$self->difficulty ($self->estimate_difficulty)
		1196	unless $self->difficulty;
		1197	$self->activate;
		1198	}
		1199
		1200	$self->in_memory (cf::MAP_IN_MEMORY);
		1201	}
		1202
		1203	sub load_map_sync {
		1204	my ($path, $origin) = @_;
		1205
		1206	#warn "load_map_sync<$path, $origin>\n";#d#
		1207
		1208	cf::sync_job {
		1209	my $map = cf::map::find_map $path, $origin
		1210	or return;
		1211	$map->load;
		1212	$map
		1213	}
		1214	}
		1215
		1216	sub save {
		1217	my ($self) = @_;
		1218
		1219	my $save = $self->{path}->save_path; utf8::encode $save;
		1220	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1221
		1222	$self->{last_save} = $cf::RUNTIME;
		1223
		1224	return unless $self->dirty;
		1225
		1226	$self->{load_path} = $save;
		1227
		1228	return if $self->{deny_save};
		1229
		1230	if ($uniq) {
		1231	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1232	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1233	} else {
		1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1235	}
		1236	}
		1237
		1238	sub swap_out {
		1239	my ($self) = @_;
		1240
		1241	return if $self->players;
		1242	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1243	return if $self->{deny_save};
		1244
		1245	$self->save;
		1246	$self->clear;
		1247	$self->in_memory (cf::MAP_SWAPPED);
		1248	}
		1249
		1250	sub reset_at {
		1251	my ($self) = @_;
		1252
		1253	# TODO: safety, remove and allow resettable per-player maps
		1254	return 1e99 if $self->{path}{user_rel};
		1255	return 1e99 if $self->{deny_reset};
		1256
		1257	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1258	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1259
		1260	$time + $to
		1261	}
		1262
		1263	sub should_reset {
		1264	my ($self) = @_;
		1265
		1266	$self->reset_at <= $cf::RUNTIME
		1267	}
		1268
		1269	sub unlink_save {
		1270	my ($self) = @_;
		1271
		1272	utf8::encode (my $save = $self->{path}->save_path);
		1273	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1274	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1275	}
		1276
		1277	sub rename {
		1278	my ($self, $new_path) = @_;
		1279
		1280	$self->unlink_save;
		1281
		1282	delete $cf::MAP{$self->path};
		1283	$self->{path} = new cf::path $new_path;
		1284	$self->path ($self->{path}->as_string);
		1285	$cf::MAP{$self->path} = $self;
		1286
		1287	$self->save;
		1288	}
		1289
		1290	sub reset {
		1291	my ($self) = @_;
		1292
		1293	return if $self->players;
		1294	return if $self->{path}{user_rel};#d#
		1295
		1296	warn "resetting map ", $self->path;#d#
		1297
		1298	delete $cf::MAP{$self->path};
		1299
		1300	$_->clear_links_to ($self) for values %cf::MAP;
		1301
		1302	$self->unlink_save;
		1303	$self->destroy;
		1304	}
		1305
		1306	my $nuke_counter = "aaaa";
		1307
		1308	sub nuke {
		1309	my ($self) = @_;
		1310
		1311	$self->{deny_save} = 1;
		1312	$self->reset_timeout (1);
		1313	$self->rename ("{nuke}/" . ($nuke_counter++));
		1314	$self->reset; # polite request, might not happen
		1315	}
		1316
		1317	sub customise_for {
		1318	my ($map, $ob) = @_;
		1319
		1320	if ($map->per_player) {
		1321	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1322	}
		1323
		1324	$map
		1325	}
		1326
		1327	sub emergency_save {
		1328	local $cf::FREEZE = 1;
		1329
		1330	warn "enter emergency map save\n";
		1331
		1332	cf::sync_job {
		1333	warn "begin emergency map save\n";
		1334	$_->save for values %cf::MAP;
		1335	};
		1336
		1337	warn "end emergency map save\n";
		1338	}
		1339
		1340	package cf;
		1341
		1342	=back
		1343
		1344
		1345	=head3 cf::object::player
		1346
		1347	=over 4
		1348
775	=item $player->reply ($npc, $msg[, $flags])	1349	=item $player_object->reply ($npc, $msg[, $flags])
776		1350
777	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1351	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
778	can be C<undef>. Does the right thing when the player is currently in a	1352	can be C<undef>. Does the right thing when the player is currently in a
779	dialogue with the given NPC character.	1353	dialogue with the given NPC character.
780		1354
781	=cut	1355	=cut
782		1356
783	# rough implementation of a future "reply" method that works	1357	# rough implementation of a future "reply" method that works
784	# with dialog boxes.	1358	# with dialog boxes.
		1359	#TODO: the first argument must go, split into a $npc->reply_to ( method
785	sub cf::object::player::reply($$$;$) {	1360	sub cf::object::player::reply($$$;$) {
786	my ($self, $npc, $msg, $flags) = @_;	1361	my ($self, $npc, $msg, $flags) = @_;
787		1362
788	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1363	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
789		1364
…		…
793	$msg = $npc->name . " says: $msg" if $npc;	1368	$msg = $npc->name . " says: $msg" if $npc;
794	$self->message ($msg, $flags);	1369	$self->message ($msg, $flags);
795	}	1370	}
796	}	1371	}
797		1372
798	=item $player->ext_reply ($msgid, $msgtype, %msg)	1373	=item $player_object->may ("access")
799		1374
800	Sends an ext reply to the player.	1375	Returns wether the given player is authorized to access resource "access"
		1376	(e.g. "command_wizcast").
801		1377
802	=cut	1378	=cut
803		1379
804	sub cf::player::ext_reply($$$%) {	1380	sub cf::object::player::may {
		1381	my ($self, $access) = @_;
		1382
		1383	$self->flag (cf::FLAG_WIZ) ||
		1384	(ref $cf::CFG{"may_$access"}
		1385	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1386	: $cf::CFG{"may_$access"})
		1387	}
		1388
		1389	=item $player_object->enter_link
		1390
		1391	Freezes the player and moves him/her to a special map (C<{link}>).
		1392
		1393	The player should be reaosnably safe there for short amounts of time. You
		1394	I<MUST> call C<leave_link> as soon as possible, though.
		1395
		1396	=item $player_object->leave_link ($map, $x, $y)
		1397
		1398	Moves the player out of the specila link map onto the given map. If the
		1399	map is not valid (or omitted), the player will be moved back to the
		1400	location he/she was before the call to C<enter_link>, or, if that fails,
		1401	to the emergency map position.
		1402
		1403	Might block.
		1404
		1405	=cut
		1406
		1407	sub cf::object::player::enter_link {
		1408	my ($self) = @_;
		1409
		1410	return if $self->map == $LINK_MAP;
		1411
		1412	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1413	if $self->map;
		1414
		1415	$self->enter_map ($LINK_MAP, 20, 20);
		1416	$self->deactivate_recursive;
		1417	}
		1418
		1419	sub cf::object::player::leave_link {
		1420	my ($self, $map, $x, $y) = @_;
		1421
		1422	my $link_pos = delete $self->{_link_pos};
		1423
		1424	unless ($map) {
		1425	# restore original map position
		1426	($map, $x, $y) = @{ $link_pos || [] };
		1427	$map = cf::map::find_map $map;
		1428
		1429	unless ($map) {
		1430	($map, $x, $y) = @$EMERGENCY_POSITION;
		1431	$map = cf::map::find_map $map
		1432	or die "FATAL: cannot load emergency map\n";
		1433	}
		1434	}
		1435
		1436	($x, $y) = (-1, -1)
		1437	unless (defined $x) && (defined $y);
		1438
		1439	# use -1 or undef as default coordinates, not 0, 0
		1440	($x, $y) = ($map->enter_x, $map->enter_y)
		1441	if $x <=0 && $y <= 0;
		1442
		1443	$map->load;
		1444
		1445	$self->activate_recursive;
		1446	$self->enter_map ($map, $x, $y);
		1447	}
		1448
		1449	=item $player_object->goto_map ($map, $x, $y)
		1450
		1451	=cut
		1452
		1453	sub cf::object::player::goto_map {
		1454	my ($self, $path, $x, $y) = @_;
		1455
		1456	$self->enter_link;
		1457
		1458	(Coro::async {
		1459	$path = new cf::path $path;
		1460
		1461	my $map = cf::map::find_map $path->as_string;
		1462	$map = $map->customise_for ($self) if $map;
		1463
		1464	warn "entering ", $map->path, " at ($x, $y)\n"
		1465	if $map;
		1466
		1467	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1468
		1469	$self->leave_link ($map, $x, $y);
		1470	})->prio (1);
		1471	}
		1472
		1473	=item $player_object->enter_exit ($exit_object)
		1474
		1475	=cut
		1476
		1477	sub parse_random_map_params {
		1478	my ($spec) = @_;
		1479
		1480	my $rmp = { # defaults
		1481	xsize => 10,
		1482	ysize => 10,
		1483	};
		1484
		1485	for (split /\n/, $spec) {
		1486	my ($k, $v) = split /\s+/, $_, 2;
		1487
		1488	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1489	}
		1490
		1491	$rmp
		1492	}
		1493
		1494	sub prepare_random_map {
		1495	my ($exit) = @_;
		1496
		1497	# all this does is basically replace the /! path by
		1498	# a new random map path (?random/...) with a seed
		1499	# that depends on the exit object
		1500
		1501	my $rmp = parse_random_map_params $exit->msg;
		1502
		1503	if ($exit->map) {
		1504	$rmp->{region} = $exit->map->region_name;
		1505	$rmp->{origin_map} = $exit->map->path;
		1506	$rmp->{origin_x} = $exit->x;
		1507	$rmp->{origin_y} = $exit->y;
		1508	}
		1509
		1510	$rmp->{random_seed} ||= $exit->random_seed;
		1511
		1512	my $data = cf::to_json $rmp;
		1513	my $md5 = Digest::MD5::md5_hex $data;
		1514
		1515	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1516	aio_write $fh, 0, (length $data), $data, 0;
		1517
		1518	$exit->slaying ("?random/$md5");
		1519	$exit->msg (undef);
		1520	}
		1521	}
		1522
		1523	sub cf::object::player::enter_exit {
805	my ($self, $id, %msg) = @_;	1524	my ($self, $exit) = @_;
806		1525
807	$msg{msgid} = $id;	1526	return unless $self->type == cf::PLAYER;
808		1527
809	$self->send ("ext " . to_json \%msg);	1528	$self->enter_link;
		1529
		1530	(Coro::async {
		1531	unless (eval {
		1532
		1533	prepare_random_map $exit
		1534	if $exit->slaying eq "/!";
		1535
		1536	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1537	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1538
		1539	1;
		1540	}) {
		1541	$self->message ("Something went wrong deep within the crossfire server. "
		1542	. "I'll try to bring you back to the map you were before. "
		1543	. "Please report this to the dungeon master",
		1544	cf::NDI_UNIQUE | cf::NDI_RED);
		1545
		1546	warn "ERROR in enter_exit: $@";
		1547	$self->leave_link;
		1548	}
		1549	})->prio (1);
810	}	1550	}
		1551
		1552	=head3 cf::client
		1553
		1554	=over 4
		1555
		1556	=item $client->send_drawinfo ($text, $flags)
		1557
		1558	Sends a drawinfo packet to the client. Circumvents output buffering so
		1559	should not be used under normal circumstances.
		1560
		1561	=cut
		1562
		1563	sub cf::client::send_drawinfo {
		1564	my ($self, $text, $flags) = @_;
		1565
		1566	utf8::encode $text;
		1567	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1568	}
		1569
		1570
		1571	=item $success = $client->query ($flags, "text", \&cb)
		1572
		1573	Queues a query to the client, calling the given callback with
		1574	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1575	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1576
		1577	Queries can fail, so check the return code. Or don't, as queries will become
		1578	reliable at some point in the future.
		1579
		1580	=cut
		1581
		1582	sub cf::client::query {
		1583	my ($self, $flags, $text, $cb) = @_;
		1584
		1585	return unless $self->state == ST_PLAYING
		1586	|| $self->state == ST_SETUP
		1587	|| $self->state == ST_CUSTOM;
		1588
		1589	$self->state (ST_CUSTOM);
		1590
		1591	utf8::encode $text;
		1592	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1593
		1594	$self->send_packet ($self->{query_queue}[0][0])
		1595	if @{ $self->{query_queue} } == 1;
		1596	}
		1597
		1598	cf::client->attach (
		1599	on_reply => sub {
		1600	my ($ns, $msg) = @_;
		1601
		1602	# this weird shuffling is so that direct followup queries
		1603	# get handled first
		1604	my $queue = delete $ns->{query_queue};
		1605
		1606	(shift @$queue)->[1]->($msg);
		1607
		1608	push @{ $ns->{query_queue} }, @$queue;
		1609
		1610	if (@{ $ns->{query_queue} } == @$queue) {
		1611	if (@$queue) {
		1612	$ns->send_packet ($ns->{query_queue}[0][0]);
		1613	} else {
		1614	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1615	}
		1616	}
		1617	},
		1618	);
		1619
		1620	=item $client->coro (\&cb)
		1621
		1622	Create a new coroutine, running the specified callback. The coroutine will
		1623	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1624	or loss of connection).
		1625
		1626	=cut
		1627
		1628	sub cf::client::coro {
		1629	my ($self, $cb) = @_;
		1630
		1631	my $coro; $coro = async {
		1632	eval {
		1633	$cb->();
		1634	};
		1635	warn $@ if $@;
		1636	};
		1637
		1638	$coro->on_destroy (sub {
		1639	delete $self->{_coro}{$coro+0};
		1640	});
		1641
		1642	$self->{_coro}{$coro+0} = $coro;
		1643
		1644	$coro
		1645	}
		1646
		1647	cf::client->attach (
		1648	on_destroy => sub {
		1649	my ($ns) = @_;
		1650
		1651	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1652	},
		1653	);
811		1654
812	=back	1655	=back
813		1656
814	=cut
815
816	#############################################################################
817		1657
818	=head2 SAFE SCRIPTING	1658	=head2 SAFE SCRIPTING
819		1659
820	Functions that provide a safe environment to compile and execute	1660	Functions that provide a safe environment to compile and execute
821	snippets of perl code without them endangering the safety of the server	1661	snippets of perl code without them endangering the safety of the server
822	itself. Looping constructs, I/O operators and other built-in functionality	1662	itself. Looping constructs, I/O operators and other built-in functionality
823	is not available in the safe scripting environment, and the number of	1663	is not available in the safe scripting environment, and the number of
824	functions and methods that cna be called is greatly reduced.	1664	functions and methods that can be called is greatly reduced.
825		1665
826	=cut	1666	=cut
827		1667
828	our $safe = new Safe "safe";	1668	our $safe = new Safe "safe";
829	our $safe_hole = new Safe::Hole;	1669	our $safe_hole = new Safe::Hole;
…		…
836		1676
837	=pod	1677	=pod
838		1678
839	The following fucntions and emthods are available within a safe environment:	1679	The following fucntions and emthods are available within a safe environment:
840		1680
841	cf::object contr pay_amount pay_player	1681	cf::object contr pay_amount pay_player map
842	cf::object::player player	1682	cf::object::player player
843	cf::player peaceful	1683	cf::player peaceful
		1684	cf::map trigger
844		1685
845	=cut	1686	=cut
846		1687
847	for (	1688	for (
848	["cf::object" => qw(contr pay_amount pay_player)],	1689	["cf::object" => qw(contr pay_amount pay_player map)],
849	["cf::object::player" => qw(player)],	1690	["cf::object::player" => qw(player)],
850	["cf::player" => qw(peaceful)],	1691	["cf::player" => qw(peaceful)],
		1692	["cf::map" => qw(trigger)],
851	) {	1693	) {
852	no strict 'refs';	1694	no strict 'refs';
853	my ($pkg, @funs) = @$_;	1695	my ($pkg, @funs) = @$_;
854	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1696	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
855	for @funs;	1697	for @funs;
…		…
965		1807
966	Immediately write the database to disk I<if it is dirty>.	1808	Immediately write the database to disk I<if it is dirty>.
967		1809
968	=cut	1810	=cut
969		1811
		1812	our $DB;
		1813
970	{	1814	{
971	my $db;
972	my $path = cf::localdir . "/database.pst";	1815	my $path = cf::localdir . "/database.pst";
973		1816
974	sub db_load() {	1817	sub db_load() {
975	warn "loading database $path\n";#d# remove later	1818	warn "loading database $path\n";#d# remove later
976	$db = stat $path ? Storable::retrieve $path : { };	1819	$DB = stat $path ? Storable::retrieve $path : { };
977	}	1820	}
978		1821
979	my $pid;	1822	my $pid;
980		1823
981	sub db_save() {	1824	sub db_save() {
982	warn "saving database $path\n";#d# remove later	1825	warn "saving database $path\n";#d# remove later
983	waitpid $pid, 0 if $pid;	1826	waitpid $pid, 0 if $pid;
984	if (0 == ($pid = fork)) {	1827	if (0 == ($pid = fork)) {
985	$db->{_meta}{version} = 1;	1828	$DB->{_meta}{version} = 1;
986	Storable::nstore $db, "$path~";	1829	Storable::nstore $DB, "$path~";
987	rename "$path~", $path;	1830	rename "$path~", $path;
988	cf::_exit 0 if defined $pid;	1831	cf::_exit 0 if defined $pid;
989	}	1832	}
990	}	1833	}
991		1834
…		…
994	sub db_sync() {	1837	sub db_sync() {
995	db_save if $dirty;	1838	db_save if $dirty;
996	undef $dirty;	1839	undef $dirty;
997	}	1840	}
998		1841
999	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1842	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1000	db_sync;	1843	db_sync;
1001	});	1844	});
1002		1845
1003	sub db_dirty() {	1846	sub db_dirty() {
1004	$dirty = 1;	1847	$dirty = 1;
1005	$idle->start;	1848	$idle->start;
1006	}	1849	}
1007		1850
1008	sub db_get($;$) {	1851	sub db_get($;$) {
1009	@_ >= 2	1852	@_ >= 2
1010	? $db->{$_[0]}{$_[1]}	1853	? $DB->{$_[0]}{$_[1]}
1011	: ($db->{$_[0]} ||= { })	1854	: ($DB->{$_[0]} ||= { })
1012	}	1855	}
1013		1856
1014	sub db_put($$;$) {	1857	sub db_put($$;$) {
1015	if (@_ >= 3) {	1858	if (@_ >= 3) {
1016	$db->{$_[0]}{$_[1]} = $_[2];	1859	$DB->{$_[0]}{$_[1]} = $_[2];
1017	} else {	1860	} else {
1018	$db->{$_[0]} = $_[1];	1861	$DB->{$_[0]} = $_[1];
1019	}	1862	}
1020	db_dirty;	1863	db_dirty;
1021	}	1864	}
1022		1865
1023	attach_global	1866	cf::global->attach (
1024	prio => 10000,	1867	prio => 10000,
1025	on_cleanup => sub {	1868	on_cleanup => sub {
1026	db_sync;	1869	db_sync;
1027	},	1870	},
1028	;	1871	);
1029	}	1872	}
1030		1873
1031	#############################################################################	1874	#############################################################################
1032	# the server's main()	1875	# the server's main()
1033		1876
…		…
1038	local $/;	1881	local $/;
1039	*CFG = YAML::Syck::Load <$fh>;	1882	*CFG = YAML::Syck::Load <$fh>;
1040	}	1883	}
1041		1884
1042	sub main {	1885	sub main {
		1886	# we must not ever block the main coroutine
		1887	local $Coro::idle = sub {
		1888	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		1889	(Coro::unblock_sub {
		1890	Event::one_event;
		1891	})->();
		1892	};
		1893
1043	cfg_load;	1894	cfg_load;
1044	db_load;	1895	db_load;
1045	load_extensions;	1896	load_extensions;
1046	Event::loop;	1897	Event::loop;
1047	}	1898	}
1048		1899
1049	#############################################################################	1900	#############################################################################
1050	# initialisation	1901	# initialisation
1051		1902
1052	sub _perl_reload(&) {	1903	sub reload() {
1053	my ($msg) = @_;	1904	# can/must only be called in main
		1905	if ($Coro::current != $Coro::main) {
		1906	warn "can only reload from main coroutine\n";
		1907	return;
		1908	}
1054		1909
1055	$msg->("reloading...");	1910	warn "reloading...";
		1911
		1912	local $FREEZE = 1;
		1913	cf::emergency_save;
1056		1914
1057	eval {	1915	eval {
		1916	# if anything goes wrong in here, we should simply crash as we already saved
		1917
1058	# cancel all watchers	1918	# cancel all watchers
1059	$_->cancel for Event::all_watchers;	1919	for (Event::all_watchers) {
		1920	$_->cancel if $_->data & WF_AUTOCANCEL;
		1921	}
		1922
		1923	# cancel all extension coros
		1924	$_->cancel for values %EXT_CORO;
		1925	%EXT_CORO = ();
1060		1926
1061	# unload all extensions	1927	# unload all extensions
1062	for (@exts) {	1928	for (@exts) {
1063	$msg->("unloading <$_>");	1929	warn "unloading <$_>";
1064	unload_extension $_;	1930	unload_extension $_;
1065	}	1931	}
1066		1932
1067	# unload all modules loaded from $LIBDIR	1933	# unload all modules loaded from $LIBDIR
1068	while (my ($k, $v) = each %INC) {	1934	while (my ($k, $v) = each %INC) {
1069	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1935	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1070		1936
1071	$msg->("removing <$k>");	1937	warn "removing <$k>";
1072	delete $INC{$k};	1938	delete $INC{$k};
1073		1939
1074	$k =~ s/\.pm$//;	1940	$k =~ s/\.pm$//;
1075	$k =~ s/\//::/g;	1941	$k =~ s/\//::/g;
1076		1942
…		…
1081	Symbol::delete_package $k;	1947	Symbol::delete_package $k;
1082	}	1948	}
1083		1949
1084	# sync database to disk	1950	# sync database to disk
1085	cf::db_sync;	1951	cf::db_sync;
		1952	IO::AIO::flush;
1086		1953
1087	# get rid of safe::, as good as possible	1954	# get rid of safe::, as good as possible
1088	Symbol::delete_package "safe::$_"	1955	Symbol::delete_package "safe::$_"
1089	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1956	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1090		1957
1091	# remove register_script_function callbacks	1958	# remove register_script_function callbacks
1092	# TODO	1959	# TODO
1093		1960
1094	# unload cf.pm "a bit"	1961	# unload cf.pm "a bit"
…		…
1097	# don't, removes xs symbols, too,	1964	# don't, removes xs symbols, too,
1098	# and global variables created in xs	1965	# and global variables created in xs
1099	#Symbol::delete_package __PACKAGE__;	1966	#Symbol::delete_package __PACKAGE__;
1100		1967
1101	# reload cf.pm	1968	# reload cf.pm
1102	$msg->("reloading cf.pm");	1969	warn "reloading cf.pm";
1103	require cf;	1970	require cf;
		1971	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1104		1972
1105	# load config and database again	1973	# load config and database again
1106	cf::cfg_load;	1974	cf::cfg_load;
1107	cf::db_load;	1975	cf::db_load;
1108		1976
1109	# load extensions	1977	# load extensions
1110	$msg->("load extensions");	1978	warn "load extensions";
1111	cf::load_extensions;	1979	cf::load_extensions;
1112		1980
1113	# reattach attachments to objects	1981	# reattach attachments to objects
1114	$msg->("reattach");	1982	warn "reattach";
1115	_global_reattach;	1983	_global_reattach;
1116	};	1984	};
1117	$msg->($@) if $@;
1118		1985
1119	$msg->("reloaded");	1986	if ($@) {
		1987	warn $@;
		1988	warn "error while reloading, exiting.";
		1989	exit 1;
		1990	}
		1991
		1992	warn "reloaded successfully";
1120	};	1993	};
1121		1994
1122	sub perl_reload() {	1995	#############################################################################
1123	_perl_reload {
1124	warn $_[0];
1125	print "$_[0]\n";
1126	};
1127	}
1128		1996
		1997	unless ($LINK_MAP) {
		1998	$LINK_MAP = cf::map::new;
		1999
		2000	$LINK_MAP->width (41);
		2001	$LINK_MAP->height (41);
		2002	$LINK_MAP->alloc;
		2003	$LINK_MAP->path ("{link}");
		2004	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2005	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2006
		2007	# dirty hack because... archetypes are not yet loaded
		2008	Event->timer (
		2009	after => 2,
		2010	cb => sub {
		2011	$_[0]->w->cancel;
		2012
		2013	# provide some exits "home"
		2014	my $exit = cf::object::new "exit";
		2015
		2016	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2017	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2018	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2019
		2020	$LINK_MAP->insert ($exit->clone, 19, 19);
		2021	$LINK_MAP->insert ($exit->clone, 19, 20);
		2022	$LINK_MAP->insert ($exit->clone, 19, 21);
		2023	$LINK_MAP->insert ($exit->clone, 20, 19);
		2024	$LINK_MAP->insert ($exit->clone, 20, 21);
		2025	$LINK_MAP->insert ($exit->clone, 21, 19);
		2026	$LINK_MAP->insert ($exit->clone, 21, 20);
		2027	$LINK_MAP->insert ($exit->clone, 21, 21);
		2028
		2029	$exit->destroy;
		2030	});
		2031
		2032	$LINK_MAP->{deny_save} = 1;
		2033	$LINK_MAP->{deny_reset} = 1;
		2034
		2035	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2036	}
		2037
		2038	register "<global>", __PACKAGE__;
		2039
1129	register_command "perl-reload", 0, sub {	2040	register_command "reload" => sub {
1130	my ($who, $arg) = @_;	2041	my ($who, $arg) = @_;
1131		2042
1132	if ($who->flag (FLAG_WIZ)) {	2043	if ($who->flag (FLAG_WIZ)) {
1133	_perl_reload {	2044	$who->message ("start of reload.");
1134	warn $_[0];	2045	reload;
1135	$who->message ($_[0]);	2046	$who->message ("end of reload.");
1136	};
1137	}	2047	}
1138	};	2048	};
1139		2049
1140	register "<global>", __PACKAGE__;
1141
1142	unshift @INC, $LIBDIR;	2050	unshift @INC, $LIBDIR;
1143		2051
1144	$TICK_WATCHER = Event->timer (	2052	$TICK_WATCHER = Event->timer (
		2053	reentrant => 0,
1145	prio => 1,	2054	prio => 0,
1146	at => $NEXT_TICK || 1,	2055	at => $NEXT_TICK || $TICK,
		2056	data => WF_AUTOCANCEL,
1147	cb => sub {	2057	cb => sub {
		2058	unless ($FREEZE) {
1148	cf::server_tick; # one server iteration	2059	cf::server_tick; # one server iteration
		2060	$RUNTIME += $TICK;
		2061	}
1149		2062
1150	my $NOW = Event::time;
1151	$NEXT_TICK += $TICK;	2063	$NEXT_TICK += $TICK;
1152		2064
1153	# if we are delayed by four ticks, skip them all	2065	# if we are delayed by four ticks or more, skip them all
1154	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2066	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1155		2067
1156	$TICK_WATCHER->at ($NEXT_TICK);	2068	$TICK_WATCHER->at ($NEXT_TICK);
1157	$TICK_WATCHER->start;	2069	$TICK_WATCHER->start;
1158	},	2070	},
1159	);	2071	);
1160		2072
		2073	IO::AIO::max_poll_time $TICK * 0.2;
		2074
		2075	Event->io (
		2076	fd => IO::AIO::poll_fileno,
		2077	poll => 'r',
		2078	prio => 5,
		2079	data => WF_AUTOCANCEL,
		2080	cb => \&IO::AIO::poll_cb,
		2081	);
		2082
		2083	Event->timer (
		2084	data => WF_AUTOCANCEL,
		2085	after => 0,
		2086	interval => 10,
		2087	cb => sub {
		2088	(Coro::unblock_sub {
		2089	write_runtime
		2090	or warn "ERROR: unable to write runtime file: $!";
		2091	})->();
		2092	},
		2093	);
		2094
1161	1	2095	1
1162		2096

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