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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.72 by root, Sun Oct 1 11:41:37 2006 UTC vs.
Revision 1.115 by root, Mon Jan 1 16:50:10 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Digest::MD5;
		21	use Fcntl;
		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	$map->last_access ($cf::RUNTIME);
		1149
		1150	if ($map->should_reset) {
		1151	$map->reset;
		1152	$map = find_map $path;
		1153	}
		1154
		1155	$cf::MAP{$key} = $map
		1156	}
		1157	}
		1158
		1159	sub load {
		1160	my ($self) = @_;
		1161
		1162	return if $self->in_memory != cf::MAP_SWAPPED;
		1163
		1164	$self->in_memory (cf::MAP_LOADING);
		1165
		1166	my $path = $self->{path};
		1167
		1168	$self->alloc;
		1169	$self->load_objects ($self->{load_path}, 1)
		1170	or return;
		1171
		1172	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1173	if delete $self->{load_original};
		1174
		1175	if (my $uniq = $path->uniq_path) {
		1176	utf8::encode $uniq;
		1177	if (aio_open $uniq, O_RDONLY, 0) {
		1178	$self->clear_unique_items;
		1179	$self->load_objects ($uniq, 0);
		1180	}
		1181	}
		1182
		1183	# now do the right thing for maps
		1184	$self->link_multipart_objects;
		1185
		1186	if ($self->{path}->is_style_map) {
		1187	$self->{deny_save} = 1;
		1188	$self->{deny_reset} = 1;
		1189	} else {
		1190	$self->fix_auto_apply;
		1191	$self->decay_objects;
		1192	$self->update_buttons;
		1193	$self->set_darkness_map;
		1194	$self->difficulty ($self->estimate_difficulty)
		1195	unless $self->difficulty;
		1196	$self->activate;
		1197	}
		1198
		1199	$self->in_memory (cf::MAP_IN_MEMORY);
		1200	}
		1201
		1202	sub load_map_sync {
		1203	my ($path, $origin) = @_;
		1204
		1205	#warn "load_map_sync<$path, $origin>\n";#d#
		1206
		1207	cf::sync_job {
		1208	my $map = cf::map::find_map $path, $origin
		1209	or return;
		1210	$map->load;
		1211	$map
		1212	}
		1213	}
		1214
		1215	sub save {
		1216	my ($self) = @_;
		1217
		1218	my $save = $self->{path}->save_path; utf8::encode $save;
		1219	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1220
		1221	$self->{last_save} = $cf::RUNTIME;
		1222
		1223	return unless $self->dirty;
		1224
		1225	$self->{load_path} = $save;
		1226
		1227	return if $self->{deny_save};
		1228
		1229	if ($uniq) {
		1230	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1231	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1232	} else {
		1233	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1234	}
		1235	}
		1236
		1237	sub swap_out {
		1238	my ($self) = @_;
		1239
		1240	return if $self->players;
		1241	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1242	return if $self->{deny_save};
		1243
		1244	$self->save;
		1245	$self->clear;
		1246	$self->in_memory (cf::MAP_SWAPPED);
		1247	}
		1248
		1249	sub reset_at {
		1250	my ($self) = @_;
		1251
		1252	# TODO: safety, remove and allow resettable per-player maps
		1253	return 1e99 if $self->{path}{user_rel};
		1254	return 1e99 if $self->{deny_reset};
		1255
		1256	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1257	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1258
		1259	$time + $to
		1260	}
		1261
		1262	sub should_reset {
		1263	my ($self) = @_;
		1264
		1265	$self->reset_at <= $cf::RUNTIME
		1266	}
		1267
		1268	sub unlink_save {
		1269	my ($self) = @_;
		1270
		1271	utf8::encode (my $save = $self->{path}->save_path);
		1272	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1273	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1274	}
		1275
		1276	sub rename {
		1277	my ($self, $new_path) = @_;
		1278
		1279	$self->unlink_save;
		1280
		1281	delete $cf::MAP{$self->path};
		1282	$self->{path} = new cf::path $new_path;
		1283	$self->path ($self->{path}->as_string);
		1284	$cf::MAP{$self->path} = $self;
		1285
		1286	$self->save;
		1287	}
		1288
		1289	sub reset {
		1290	my ($self) = @_;
		1291
		1292	return if $self->players;
		1293	return if $self->{path}{user_rel};#d#
		1294
		1295	warn "resetting map ", $self->path;#d#
		1296
		1297	delete $cf::MAP{$self->path};
		1298
		1299	$_->clear_links_to ($self) for values %cf::MAP;
		1300
		1301	$self->unlink_save;
		1302	$self->destroy;
		1303	}
		1304
		1305	my $nuke_counter = "aaaa";
		1306
		1307	sub nuke {
		1308	my ($self) = @_;
		1309
		1310	$self->{deny_save} = 1;
		1311	$self->reset_timeout (1);
		1312	$self->rename ("{nuke}/" . ($nuke_counter++));
		1313	$self->reset; # polite request, might not happen
		1314	}
		1315
		1316	sub customise_for {
		1317	my ($map, $ob) = @_;
		1318
		1319	if ($map->per_player) {
		1320	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1321	}
		1322
		1323	$map
		1324	}
		1325
		1326	sub emergency_save {
		1327	local $cf::FREEZE = 1;
		1328
		1329	warn "enter emergency map save\n";
		1330
		1331	cf::sync_job {
		1332	warn "begin emergency map save\n";
		1333	$_->save for values %cf::MAP;
		1334	};
		1335
		1336	warn "end emergency map save\n";
		1337	}
		1338
		1339	package cf;
		1340
		1341	=back
		1342
		1343
		1344	=head3 cf::object::player
		1345
		1346	=over 4
		1347
775	=item $player->reply ($npc, $msg[, $flags])	1348	=item $player_object->reply ($npc, $msg[, $flags])
776		1349
777	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1350	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
778	can be C<undef>. Does the right thing when the player is currently in a	1351	can be C<undef>. Does the right thing when the player is currently in a
779	dialogue with the given NPC character.	1352	dialogue with the given NPC character.
780		1353
781	=cut	1354	=cut
782		1355
783	# rough implementation of a future "reply" method that works	1356	# rough implementation of a future "reply" method that works
784	# with dialog boxes.	1357	# with dialog boxes.
		1358	#TODO: the first argument must go, split into a $npc->reply_to ( method
785	sub cf::object::player::reply($$$;$) {	1359	sub cf::object::player::reply($$$;$) {
786	my ($self, $npc, $msg, $flags) = @_;	1360	my ($self, $npc, $msg, $flags) = @_;
787		1361
788	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1362	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
789		1363
…		…
793	$msg = $npc->name . " says: $msg" if $npc;	1367	$msg = $npc->name . " says: $msg" if $npc;
794	$self->message ($msg, $flags);	1368	$self->message ($msg, $flags);
795	}	1369	}
796	}	1370	}
797		1371
798	=item $player->ext_reply ($msgid, $msgtype, %msg)	1372	=item $player_object->may ("access")
799		1373
800	Sends an ext reply to the player.	1374	Returns wether the given player is authorized to access resource "access"
		1375	(e.g. "command_wizcast").
801		1376
802	=cut	1377	=cut
803		1378
804	sub cf::player::ext_reply($$$%) {	1379	sub cf::object::player::may {
		1380	my ($self, $access) = @_;
		1381
		1382	$self->flag (cf::FLAG_WIZ) ||
		1383	(ref $cf::CFG{"may_$access"}
		1384	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1385	: $cf::CFG{"may_$access"})
		1386	}
		1387
		1388	=item $player_object->enter_link
		1389
		1390	Freezes the player and moves him/her to a special map (C<{link}>).
		1391
		1392	The player should be reaosnably safe there for short amounts of time. You
		1393	I<MUST> call C<leave_link> as soon as possible, though.
		1394
		1395	=item $player_object->leave_link ($map, $x, $y)
		1396
		1397	Moves the player out of the specila link map onto the given map. If the
		1398	map is not valid (or omitted), the player will be moved back to the
		1399	location he/she was before the call to C<enter_link>, or, if that fails,
		1400	to the emergency map position.
		1401
		1402	Might block.
		1403
		1404	=cut
		1405
		1406	sub cf::object::player::enter_link {
		1407	my ($self) = @_;
		1408
		1409	return if $self->map == $LINK_MAP;
		1410
		1411	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1412	if $self->map;
		1413
		1414	$self->enter_map ($LINK_MAP, 20, 20);
		1415	$self->deactivate_recursive;
		1416	}
		1417
		1418	sub cf::object::player::leave_link {
		1419	my ($self, $map, $x, $y) = @_;
		1420
		1421	my $link_pos = delete $self->{_link_pos};
		1422
		1423	unless ($map) {
		1424	# restore original map position
		1425	($map, $x, $y) = @{ $link_pos || [] };
		1426	$map = cf::map::find_map $map;
		1427
		1428	unless ($map) {
		1429	($map, $x, $y) = @$EMERGENCY_POSITION;
		1430	$map = cf::map::find_map $map
		1431	or die "FATAL: cannot load emergency map\n";
		1432	}
		1433	}
		1434
		1435	($x, $y) = (-1, -1)
		1436	unless (defined $x) && (defined $y);
		1437
		1438	# use -1 or undef as default coordinates, not 0, 0
		1439	($x, $y) = ($map->enter_x, $map->enter_y)
		1440	if $x <=0 && $y <= 0;
		1441
		1442	$map->load;
		1443
		1444	$self->activate_recursive;
		1445	$self->enter_map ($map, $x, $y);
		1446	}
		1447
		1448	=item $player_object->goto_map ($map, $x, $y)
		1449
		1450	=cut
		1451
		1452	sub cf::object::player::goto_map {
		1453	my ($self, $path, $x, $y) = @_;
		1454
		1455	$self->enter_link;
		1456
		1457	(Coro::async {
		1458	$path = new cf::path $path;
		1459
		1460	my $map = cf::map::find_map $path->as_string;
		1461	$map = $map->customise_for ($self) if $map;
		1462
		1463	warn "entering ", $map->path, " at ($x, $y)\n"
		1464	if $map;
		1465
		1466	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1467
		1468	$self->leave_link ($map, $x, $y);
		1469	})->prio (1);
		1470	}
		1471
		1472	=item $player_object->enter_exit ($exit_object)
		1473
		1474	=cut
		1475
		1476	sub parse_random_map_params {
		1477	my ($spec) = @_;
		1478
		1479	my $rmp = { # defaults
		1480	xsize => 10,
		1481	ysize => 10,
		1482	};
		1483
		1484	for (split /\n/, $spec) {
		1485	my ($k, $v) = split /\s+/, $_, 2;
		1486
		1487	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1488	}
		1489
		1490	$rmp
		1491	}
		1492
		1493	sub prepare_random_map {
		1494	my ($exit) = @_;
		1495
		1496	# all this does is basically replace the /! path by
		1497	# a new random map path (?random/...) with a seed
		1498	# that depends on the exit object
		1499
		1500	my $rmp = parse_random_map_params $exit->msg;
		1501
		1502	if ($exit->map) {
		1503	$rmp->{region} = $exit->map->region_name;
		1504	$rmp->{origin_map} = $exit->map->path;
		1505	$rmp->{origin_x} = $exit->x;
		1506	$rmp->{origin_y} = $exit->y;
		1507	}
		1508
		1509	$rmp->{random_seed} ||= $exit->random_seed;
		1510
		1511	my $data = cf::to_json $rmp;
		1512	my $md5 = Digest::MD5::md5_hex $data;
		1513
		1514	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1515	aio_write $fh, 0, (length $data), $data, 0;
		1516
		1517	$exit->slaying ("?random/$md5");
		1518	$exit->msg (undef);
		1519	}
		1520	}
		1521
		1522	sub cf::object::player::enter_exit {
805	my ($self, $id, %msg) = @_;	1523	my ($self, $exit) = @_;
806		1524
807	$msg{msgid} = $id;	1525	return unless $self->type == cf::PLAYER;
808		1526
809	$self->send ("ext " . to_json \%msg);	1527	$self->enter_link;
		1528
		1529	(Coro::async {
		1530	unless (eval {
		1531
		1532	prepare_random_map $exit
		1533	if $exit->slaying eq "/!";
		1534
		1535	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1536	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1537
		1538	1;
		1539	}) {
		1540	$self->message ("Something went wrong deep within the crossfire server. "
		1541	. "I'll try to bring you back to the map you were before. "
		1542	. "Please report this to the dungeon master",
		1543	cf::NDI_UNIQUE | cf::NDI_RED);
		1544
		1545	warn "ERROR in enter_exit: $@";
		1546	$self->leave_link;
		1547	}
		1548	})->prio (1);
810	}	1549	}
		1550
		1551	=head3 cf::client
		1552
		1553	=over 4
		1554
		1555	=item $client->send_drawinfo ($text, $flags)
		1556
		1557	Sends a drawinfo packet to the client. Circumvents output buffering so
		1558	should not be used under normal circumstances.
		1559
		1560	=cut
		1561
		1562	sub cf::client::send_drawinfo {
		1563	my ($self, $text, $flags) = @_;
		1564
		1565	utf8::encode $text;
		1566	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1567	}
		1568
		1569
		1570	=item $success = $client->query ($flags, "text", \&cb)
		1571
		1572	Queues a query to the client, calling the given callback with
		1573	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1574	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1575
		1576	Queries can fail, so check the return code. Or don't, as queries will become
		1577	reliable at some point in the future.
		1578
		1579	=cut
		1580
		1581	sub cf::client::query {
		1582	my ($self, $flags, $text, $cb) = @_;
		1583
		1584	return unless $self->state == ST_PLAYING
		1585	|| $self->state == ST_SETUP
		1586	|| $self->state == ST_CUSTOM;
		1587
		1588	$self->state (ST_CUSTOM);
		1589
		1590	utf8::encode $text;
		1591	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1592
		1593	$self->send_packet ($self->{query_queue}[0][0])
		1594	if @{ $self->{query_queue} } == 1;
		1595	}
		1596
		1597	cf::client->attach (
		1598	on_reply => sub {
		1599	my ($ns, $msg) = @_;
		1600
		1601	# this weird shuffling is so that direct followup queries
		1602	# get handled first
		1603	my $queue = delete $ns->{query_queue};
		1604
		1605	(shift @$queue)->[1]->($msg);
		1606
		1607	push @{ $ns->{query_queue} }, @$queue;
		1608
		1609	if (@{ $ns->{query_queue} } == @$queue) {
		1610	if (@$queue) {
		1611	$ns->send_packet ($ns->{query_queue}[0][0]);
		1612	} else {
		1613	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1614	}
		1615	}
		1616	},
		1617	);
		1618
		1619	=item $client->coro (\&cb)
		1620
		1621	Create a new coroutine, running the specified callback. The coroutine will
		1622	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1623	or loss of connection).
		1624
		1625	=cut
		1626
		1627	sub cf::client::coro {
		1628	my ($self, $cb) = @_;
		1629
		1630	my $coro; $coro = async {
		1631	eval {
		1632	$cb->();
		1633	};
		1634	warn $@ if $@;
		1635	};
		1636
		1637	$coro->on_destroy (sub {
		1638	delete $self->{_coro}{$coro+0};
		1639	});
		1640
		1641	$self->{_coro}{$coro+0} = $coro;
		1642
		1643	$coro
		1644	}
		1645
		1646	cf::client->attach (
		1647	on_destroy => sub {
		1648	my ($ns) = @_;
		1649
		1650	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1651	},
		1652	);
811		1653
812	=back	1654	=back
813		1655
814	=cut
815
816	#############################################################################
817		1656
818	=head2 SAFE SCRIPTING	1657	=head2 SAFE SCRIPTING
819		1658
820	Functions that provide a safe environment to compile and execute	1659	Functions that provide a safe environment to compile and execute
821	snippets of perl code without them endangering the safety of the server	1660	snippets of perl code without them endangering the safety of the server
822	itself. Looping constructs, I/O operators and other built-in functionality	1661	itself. Looping constructs, I/O operators and other built-in functionality
823	is not available in the safe scripting environment, and the number of	1662	is not available in the safe scripting environment, and the number of
824	functions and methods that cna be called is greatly reduced.	1663	functions and methods that can be called is greatly reduced.
825		1664
826	=cut	1665	=cut
827		1666
828	our $safe = new Safe "safe";	1667	our $safe = new Safe "safe";
829	our $safe_hole = new Safe::Hole;	1668	our $safe_hole = new Safe::Hole;
…		…
836		1675
837	=pod	1676	=pod
838		1677
839	The following fucntions and emthods are available within a safe environment:	1678	The following fucntions and emthods are available within a safe environment:
840		1679
841	cf::object contr pay_amount pay_player	1680	cf::object contr pay_amount pay_player map
842	cf::object::player player	1681	cf::object::player player
843	cf::player peaceful	1682	cf::player peaceful
		1683	cf::map trigger
844		1684
845	=cut	1685	=cut
846		1686
847	for (	1687	for (
848	["cf::object" => qw(contr pay_amount pay_player)],	1688	["cf::object" => qw(contr pay_amount pay_player map)],
849	["cf::object::player" => qw(player)],	1689	["cf::object::player" => qw(player)],
850	["cf::player" => qw(peaceful)],	1690	["cf::player" => qw(peaceful)],
		1691	["cf::map" => qw(trigger)],
851	) {	1692	) {
852	no strict 'refs';	1693	no strict 'refs';
853	my ($pkg, @funs) = @$_;	1694	my ($pkg, @funs) = @$_;
854	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1695	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
855	for @funs;	1696	for @funs;
…		…
965		1806
966	Immediately write the database to disk I<if it is dirty>.	1807	Immediately write the database to disk I<if it is dirty>.
967		1808
968	=cut	1809	=cut
969		1810
		1811	our $DB;
		1812
970	{	1813	{
971	my $db;
972	my $path = cf::localdir . "/database.pst";	1814	my $path = cf::localdir . "/database.pst";
973		1815
974	sub db_load() {	1816	sub db_load() {
975	warn "loading database $path\n";#d# remove later	1817	warn "loading database $path\n";#d# remove later
976	$db = stat $path ? Storable::retrieve $path : { };	1818	$DB = stat $path ? Storable::retrieve $path : { };
977	}	1819	}
978		1820
979	my $pid;	1821	my $pid;
980		1822
981	sub db_save() {	1823	sub db_save() {
982	warn "saving database $path\n";#d# remove later	1824	warn "saving database $path\n";#d# remove later
983	waitpid $pid, 0 if $pid;	1825	waitpid $pid, 0 if $pid;
984	if (0 == ($pid = fork)) {	1826	if (0 == ($pid = fork)) {
985	$db->{_meta}{version} = 1;	1827	$DB->{_meta}{version} = 1;
986	Storable::nstore $db, "$path~";	1828	Storable::nstore $DB, "$path~";
987	rename "$path~", $path;	1829	rename "$path~", $path;
988	cf::_exit 0 if defined $pid;	1830	cf::_exit 0 if defined $pid;
989	}	1831	}
990	}	1832	}
991		1833
…		…
994	sub db_sync() {	1836	sub db_sync() {
995	db_save if $dirty;	1837	db_save if $dirty;
996	undef $dirty;	1838	undef $dirty;
997	}	1839	}
998		1840
999	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1841	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1000	db_sync;	1842	db_sync;
1001	});	1843	});
1002		1844
1003	sub db_dirty() {	1845	sub db_dirty() {
1004	$dirty = 1;	1846	$dirty = 1;
1005	$idle->start;	1847	$idle->start;
1006	}	1848	}
1007		1849
1008	sub db_get($;$) {	1850	sub db_get($;$) {
1009	@_ >= 2	1851	@_ >= 2
1010	? $db->{$_[0]}{$_[1]}	1852	? $DB->{$_[0]}{$_[1]}
1011	: ($db->{$_[0]} ||= { })	1853	: ($DB->{$_[0]} ||= { })
1012	}	1854	}
1013		1855
1014	sub db_put($$;$) {	1856	sub db_put($$;$) {
1015	if (@_ >= 3) {	1857	if (@_ >= 3) {
1016	$db->{$_[0]}{$_[1]} = $_[2];	1858	$DB->{$_[0]}{$_[1]} = $_[2];
1017	} else {	1859	} else {
1018	$db->{$_[0]} = $_[1];	1860	$DB->{$_[0]} = $_[1];
1019	}	1861	}
1020	db_dirty;	1862	db_dirty;
1021	}	1863	}
1022		1864
1023	attach_global	1865	cf::global->attach (
1024	prio => 10000,	1866	prio => 10000,
1025	on_cleanup => sub {	1867	on_cleanup => sub {
1026	db_sync;	1868	db_sync;
1027	},	1869	},
1028	;	1870	);
1029	}	1871	}
1030		1872
1031	#############################################################################	1873	#############################################################################
1032	# the server's main()	1874	# the server's main()
1033		1875
1034	sub load_cfg {	1876	sub cfg_load {
1035	open my $fh, "<:utf8", cf::confdir . "/config"	1877	open my $fh, "<:utf8", cf::confdir . "/config"
1036	or return;	1878	or return;
1037		1879
1038	local $/;	1880	local $/;
1039	*CFG = YAML::Syck::Load <$fh>;	1881	*CFG = YAML::Syck::Load <$fh>;
1040
1041	use Data::Dumper; warn Dumper \%CFG;
1042	}	1882	}
1043		1883
1044	sub main {	1884	sub main {
1045	load_cfg;	1885	# we must not ever block the main coroutine
		1886	local $Coro::idle = sub {
		1887	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		1888	(Coro::unblock_sub {
		1889	Event::one_event;
		1890	})->();
		1891	};
		1892
		1893	cfg_load;
1046	db_load;	1894	db_load;
1047	load_extensions;	1895	load_extensions;
1048	Event::loop;	1896	Event::loop;
1049	}	1897	}
1050		1898
1051	#############################################################################	1899	#############################################################################
1052	# initialisation	1900	# initialisation
1053		1901
1054	sub _perl_reload(&) {	1902	sub reload() {
1055	my ($msg) = @_;	1903	# can/must only be called in main
		1904	if ($Coro::current != $Coro::main) {
		1905	warn "can only reload from main coroutine\n";
		1906	return;
		1907	}
1056		1908
1057	$msg->("reloading...");	1909	warn "reloading...";
		1910
		1911	local $FREEZE = 1;
		1912	cf::emergency_save;
1058		1913
1059	eval {	1914	eval {
		1915	# if anything goes wrong in here, we should simply crash as we already saved
		1916
1060	# cancel all watchers	1917	# cancel all watchers
1061	$_->cancel for Event::all_watchers;	1918	for (Event::all_watchers) {
		1919	$_->cancel if $_->data & WF_AUTOCANCEL;
		1920	}
		1921
		1922	# cancel all extension coros
		1923	$_->cancel for values %EXT_CORO;
		1924	%EXT_CORO = ();
1062		1925
1063	# unload all extensions	1926	# unload all extensions
1064	for (@exts) {	1927	for (@exts) {
1065	$msg->("unloading <$_>");	1928	warn "unloading <$_>";
1066	unload_extension $_;	1929	unload_extension $_;
1067	}	1930	}
1068		1931
1069	# unload all modules loaded from $LIBDIR	1932	# unload all modules loaded from $LIBDIR
1070	while (my ($k, $v) = each %INC) {	1933	while (my ($k, $v) = each %INC) {
1071	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1934	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1072		1935
1073	$msg->("removing <$k>");	1936	warn "removing <$k>";
1074	delete $INC{$k};	1937	delete $INC{$k};
1075		1938
1076	$k =~ s/\.pm$//;	1939	$k =~ s/\.pm$//;
1077	$k =~ s/\//::/g;	1940	$k =~ s/\//::/g;
1078		1941
…		…
1083	Symbol::delete_package $k;	1946	Symbol::delete_package $k;
1084	}	1947	}
1085		1948
1086	# sync database to disk	1949	# sync database to disk
1087	cf::db_sync;	1950	cf::db_sync;
		1951	IO::AIO::flush;
1088		1952
1089	# get rid of safe::, as good as possible	1953	# get rid of safe::, as good as possible
1090	Symbol::delete_package "safe::$_"	1954	Symbol::delete_package "safe::$_"
1091	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1955	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1092		1956
1093	# remove register_script_function callbacks	1957	# remove register_script_function callbacks
1094	# TODO	1958	# TODO
1095		1959
1096	# unload cf.pm "a bit"	1960	# unload cf.pm "a bit"
…		…
1099	# don't, removes xs symbols, too,	1963	# don't, removes xs symbols, too,
1100	# and global variables created in xs	1964	# and global variables created in xs
1101	#Symbol::delete_package __PACKAGE__;	1965	#Symbol::delete_package __PACKAGE__;
1102		1966
1103	# reload cf.pm	1967	# reload cf.pm
1104	$msg->("reloading cf.pm");	1968	warn "reloading cf.pm";
1105	require cf;	1969	require cf;
		1970	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1106		1971
1107	# load database again	1972	# load config and database again
		1973	cf::cfg_load;
1108	cf::db_load;	1974	cf::db_load;
1109		1975
1110	# load extensions	1976	# load extensions
1111	$msg->("load extensions");	1977	warn "load extensions";
1112	cf::load_extensions;	1978	cf::load_extensions;
1113		1979
1114	# reattach attachments to objects	1980	# reattach attachments to objects
1115	$msg->("reattach");	1981	warn "reattach";
1116	_global_reattach;	1982	_global_reattach;
1117	};	1983	};
1118	$msg->($@) if $@;
1119		1984
1120	$msg->("reloaded");	1985	if ($@) {
		1986	warn $@;
		1987	warn "error while reloading, exiting.";
		1988	exit 1;
		1989	}
		1990
		1991	warn "reloaded successfully";
1121	};	1992	};
1122		1993
1123	sub perl_reload() {	1994	#############################################################################
1124	_perl_reload {
1125	warn $_[0];
1126	print "$_[0]\n";
1127	};
1128	}
1129		1995
		1996	unless ($LINK_MAP) {
		1997	$LINK_MAP = cf::map::new;
		1998
		1999	$LINK_MAP->width (41);
		2000	$LINK_MAP->height (41);
		2001	$LINK_MAP->alloc;
		2002	$LINK_MAP->path ("{link}");
		2003	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2004	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2005
		2006	# dirty hack because... archetypes are not yet loaded
		2007	Event->timer (
		2008	after => 2,
		2009	cb => sub {
		2010	$_[0]->w->cancel;
		2011
		2012	# provide some exits "home"
		2013	my $exit = cf::object::new "exit";
		2014
		2015	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2016	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2017	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2018
		2019	$LINK_MAP->insert ($exit->clone, 19, 19);
		2020	$LINK_MAP->insert ($exit->clone, 19, 20);
		2021	$LINK_MAP->insert ($exit->clone, 19, 21);
		2022	$LINK_MAP->insert ($exit->clone, 20, 19);
		2023	$LINK_MAP->insert ($exit->clone, 20, 21);
		2024	$LINK_MAP->insert ($exit->clone, 21, 19);
		2025	$LINK_MAP->insert ($exit->clone, 21, 20);
		2026	$LINK_MAP->insert ($exit->clone, 21, 21);
		2027
		2028	$exit->destroy;
		2029	});
		2030
		2031	$LINK_MAP->{deny_save} = 1;
		2032	$LINK_MAP->{deny_reset} = 1;
		2033
		2034	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2035	}
		2036
		2037	register "<global>", __PACKAGE__;
		2038
1130	register_command "perl-reload", 0, sub {	2039	register_command "reload" => sub {
1131	my ($who, $arg) = @_;	2040	my ($who, $arg) = @_;
1132		2041
1133	if ($who->flag (FLAG_WIZ)) {	2042	if ($who->flag (FLAG_WIZ)) {
1134	_perl_reload {	2043	$who->message ("start of reload.");
1135	warn $_[0];	2044	reload;
1136	$who->message ($_[0]);	2045	$who->message ("end of reload.");
1137	};
1138	}	2046	}
1139	};	2047	};
1140		2048
1141	register "<global>", __PACKAGE__;
1142
1143	unshift @INC, $LIBDIR;	2049	unshift @INC, $LIBDIR;
1144		2050
1145	$TICK_WATCHER = Event->timer (	2051	$TICK_WATCHER = Event->timer (
		2052	reentrant => 0,
1146	prio => 1,	2053	prio => 0,
1147	at => $NEXT_TICK || 1,	2054	at => $NEXT_TICK || $TICK,
		2055	data => WF_AUTOCANCEL,
1148	cb => sub {	2056	cb => sub {
		2057	unless ($FREEZE) {
1149	cf::server_tick; # one server iteration	2058	cf::server_tick; # one server iteration
		2059	$RUNTIME += $TICK;
		2060	}
1150		2061
1151	my $NOW = Event::time;
1152	$NEXT_TICK += $TICK;	2062	$NEXT_TICK += $TICK;
1153		2063
1154	# if we are delayed by four ticks, skip them all	2064	# if we are delayed by four ticks or more, skip them all
1155	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2065	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1156		2066
1157	$TICK_WATCHER->at ($NEXT_TICK);	2067	$TICK_WATCHER->at ($NEXT_TICK);
1158	$TICK_WATCHER->start;	2068	$TICK_WATCHER->start;
1159	},	2069	},
1160	);	2070	);
1161		2071
		2072	IO::AIO::max_poll_time $TICK * 0.2;
		2073
		2074	Event->io (
		2075	fd => IO::AIO::poll_fileno,
		2076	poll => 'r',
		2077	prio => 5,
		2078	data => WF_AUTOCANCEL,
		2079	cb => \&IO::AIO::poll_cb,
		2080	);
		2081
		2082	Event->timer (
		2083	data => WF_AUTOCANCEL,
		2084	after => 0,
		2085	interval => 10,
		2086	cb => sub {
		2087	(Coro::unblock_sub {
		2088	write_runtime
		2089	or warn "ERROR: unable to write runtime file: $!";
		2090	})->();
		2091	},
		2092	);
		2093
1162	1	2094	1
1163		2095

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