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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.73 by root, Sun Oct 1 11:46:51 2006 UTC vs.
Revision 1.110 by root, Mon Jan 1 11:21:55 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	my $busy = 1;
		203	my @res;
		204
		205	my $coro = Coro::async {
		206	@res = eval { $job->() };
		207	warn $@ if $@;
		208	undef $busy;
		209	};
		210
		211	if ($Coro::current == $Coro::main) {
		212	# TODO: use suspend/resume instead
		213	local $FREEZE = 1;
		214	$coro->prio (Coro::PRIO_MAX);
		215	while ($busy) {
		216	Coro::cede_notself;
		217	Event::one_event unless Coro::nready;
		218	}
		219	} else {
		220	$coro->join;
		221	}
		222
		223	wantarray ? @res : $res[0]
		224	}
		225
		226	=item $coro = cf::coro { BLOCK }
		227
		228	Creates and returns a new coro. This coro is automcatially being canceled
		229	when the extension calling this is being unloaded.
		230
		231	=cut
		232
		233	sub coro(&) {
		234	my $cb = shift;
		235
		236	my $coro; $coro = async {
		237	eval {
		238	$cb->();
		239	};
		240	warn $@ if $@;
		241	};
		242
		243	$coro->on_destroy (sub {
		244	delete $EXT_CORO{$coro+0};
		245	});
		246	$EXT_CORO{$coro+0} = $coro;
		247
		248	$coro
		249	}
		250
		251	sub write_runtime {
		252	my $runtime = cf::localdir . "/runtime";
		253
		254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		255	or return;
		256
		257	my $value = $cf::RUNTIME;
		258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		259	and return;
		260
		261	aio_fsync $fh
		262	and return;
		263
		264	close $fh
		265	or return;
		266
		267	aio_rename "$runtime~", $runtime
		268	and return;
		269
		270	1
		271	}
		272
116	=back	273	=back
117		274
118	=cut	275	=cut
119		276
120	#############################################################################	277	#############################################################################
121		278
122	=head2 EVENTS AND OBJECT ATTACHMENTS	279	package cf::path;
		280
		281	sub new {
		282	my ($class, $path, $base) = @_;
		283
		284	$path = $path->as_string if ref $path;
		285
		286	my $self = bless { }, $class;
		287
		288	if ($path =~ s{^\?random/}{}) {
		289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		290	$self->{random} = cf::from_json $data;
		291	} else {
		292	if ($path =~ s{^~([^/]+)?}{}) {
		293	$self->{user_rel} = 1;
		294
		295	if (defined $1) {
		296	$self->{user} = $1;
		297	} elsif ($base =~ m{^~([^/]+)/}) {
		298	$self->{user} = $1;
		299	} else {
		300	warn "cannot resolve user-relative path without user <$path,$base>\n";
		301	}
		302	} elsif ($path =~ /^\//) {
		303	# already absolute
		304	} else {
		305	$base =~ s{[^/]+/?$}{};
		306	return $class->new ("$base/$path");
		307	}
		308
		309	for ($path) {
		310	redo if s{/\.?/}{/};
		311	redo if s{/[^/]+/\.\./}{/};
		312	}
		313	}
		314
		315	$self->{path} = $path;
		316
		317	$self
		318	}
		319
		320	# the name / primary key / in-game path
		321	sub as_string {
		322	my ($self) = @_;
		323
		324	$self->{user_rel} ? "~$self->{user}$self->{path}"
		325	: $self->{random} ? "?random/$self->{path}"
		326	: $self->{path}
		327	}
		328
		329	# the displayed name, this is a one way mapping
		330	sub visible_name {
		331	my ($self) = @_;
		332
		333	# if (my $rmp = $self->{random}) {
		334	# # todo: be more intelligent about this
		335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		336	# } else {
		337	$self->as_string
		338	# }
		339	}
		340
		341	# escape the /'s in the path
		342	sub _escaped_path {
		343	# ∕ is U+2215
		344	(my $path = $_[0]{path}) =~ s/\//∕/g;
		345	$path
		346	}
		347
		348	# the original (read-only) location
		349	sub load_path {
		350	my ($self) = @_;
		351
		352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		353	}
		354
		355	# the temporary/swap location
		356	sub save_path {
		357	my ($self) = @_;
		358
		359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		362	}
		363
		364	# the unique path, might be eq to save_path
		365	sub uniq_path {
		366	my ($self) = @_;
		367
		368	$self->{user_rel} || $self->{random}
		369	? undef
		370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		371	}
		372
		373	# return random map parameters, or undef
		374	sub random_map_params {
		375	my ($self) = @_;
		376
		377	$self->{random}
		378	}
		379
		380	# this is somewhat ugly, but style maps do need special treatment
		381	sub is_style_map {
		382	$_[0]{path} =~ m{^/styles/}
		383	}
		384
		385	package cf;
		386
		387	#############################################################################
		388
		389	=head2 ATTACHABLE OBJECTS
		390
		391	Many objects in crossfire are so-called attachable objects. That means you can
		392	attach callbacks/event handlers (a collection of which is called an "attachment")
		393	to it. All such attachable objects support the following methods.
		394
		395	In the following description, CLASS can be any of C<global>, C<object>
		396	C<player>, C<client> or C<map> (i.e. the attachable objects in
		397	crossfire+).
123		398
124	=over 4	399	=over 4
125		400
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...)	401	=item $attachable->attach ($attachment, key => $value...)
139		402
140	=item $map->detach ($attachment)	403	=item $attachable->detach ($attachment)
141		404
142	Attach/detach a pre-registered attachment to a map.	405	Attach/detach a pre-registered attachment to a specific object and give it
		406	the specified key/value pairs as arguments.
143		407
144	=item $bool = $object->attached ($name)	408	Example, attach a minesweeper attachment to the given object, making it a
		409	10x10 minesweeper game:
145		410
146	=item $bool = $player->attached ($name)	411	$obj->attach (minesweeper => width => 10, height => 10);
147		412
148	=item $bool = $map->attached ($name)	413	=item $bool = $attachable->attached ($name)
149		414
150	Checks wether the named attachment is currently attached to the object.	415	Checks wether the named attachment is currently attached to the object.
151		416
152	=item cf::attach_global ...	417	=item cf::CLASS->attach ...
153		418
154	Attach handlers for global events.	419	=item cf::CLASS->detach ...
155		420
156	This and all following C<attach_*>-functions expect any number of the	421	Define an anonymous attachment and attach it to all objects of the given
157	following handler/hook descriptions:	422	CLASS. See the next function for an explanation of its arguments.
		423
		424	You can attach to global events by using the C<cf::global> class.
		425
		426	Example, log all player logins:
		427
		428	cf::player->attach (
		429	on_login => sub {
		430	my ($pl) = @_;
		431	...
		432	},
		433	);
		434
		435	Example, attach to the jeweler skill:
		436
		437	cf::object->attach (
		438	type => cf::SKILL,
		439	subtype => cf::SK_JEWELER,
		440	on_use_skill => sub {
		441	my ($sk, $ob, $part, $dir, $msg) = @_;
		442	...
		443	},
		444	);
		445
		446	=item cf::CLASS::attachment $name, ...
		447
		448	Register an attachment by C<$name> through which attachable objects of the
		449	given CLASS can refer to this attachment.
		450
		451	Some classes such as crossfire maps and objects can specify attachments
		452	that are attached at load/instantiate time, thus the need for a name.
		453
		454	These calls expect any number of the following handler/hook descriptions:
158		455
159	=over 4	456	=over 4
160		457
161	=item prio => $number	458	=item prio => $number
162		459
…		…
164	by another C<prio> setting). Lower priority handlers get executed	461	by another C<prio> setting). Lower priority handlers get executed
165	earlier. The default priority is C<0>, and many built-in handlers are	462	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	463	registered at priority C<-1000>, so lower priorities should not be used
167	unless you know what you are doing.	464	unless you know what you are doing.
168		465
		466	=item type => $type
		467
		468	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		469	given type of objects only (the additional parameter C<subtype> can be
		470	used to further limit to the given subtype).
		471
169	=item on_I<event> => \&cb	472	=item on_I<event> => \&cb
170		473
171	Call the given code reference whenever the named event happens (event is	474	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	475	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	476	handlers are recognised generally depends on the type of object these
…		…
182	package and register them. Only handlers for eevents supported by the	485	package and register them. Only handlers for eevents supported by the
183	object/class are recognised.	486	object/class are recognised.
184		487
185	=back	488	=back
186		489
187	=item cf::attach_to_type $object_type, $subtype, ...	490	Example, define an attachment called "sockpuppet" that calls the given
		491	event handler when a monster attacks:
188		492
189	Attach handlers for a specific object type (e.g. TRANSPORT) and	493	cf::object::attachment sockpuppet =>
190	subtype. If C<$subtype> is zero or undef, matches all objects of the given	494	on_skill_attack => sub {
191	type.	495	my ($self, $victim) = @_;
192		496	...
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	}	497	}
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	498	}
414	}
415		499
416	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	500	=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		501
442	Just because you have a perl object does not mean that the corresponding	502	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	503	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	504	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	505	can be used to test for existence of the C object part without causing an
446	exception.	506	exception.
447		507
		508	=cut
		509
		510	# the following variables are defined in .xs and must not be re-created
		511	our @CB_GLOBAL = (); # registry for all global events
		512	our @CB_ATTACHABLE = (); # registry for all attachables
		513	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		514	our @CB_PLAYER = ();
		515	our @CB_CLIENT = ();
		516	our @CB_TYPE = (); # registry for type (cf-object class) based events
		517	our @CB_MAP = ();
		518
		519	my %attachment;
		520
		521	sub _attach_cb($$$$) {
		522	my ($registry, $event, $prio, $cb) = @_;
		523
		524	use sort 'stable';
		525
		526	$cb = [$prio, $cb];
		527
		528	@{$registry->[$event]} = sort
		529	{ $a->[0] cmp $b->[0] }
		530	@{$registry->[$event] || []}, $cb;
		531	}
		532
		533	# hack
		534	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		535
		536	# attach handles attaching event callbacks
		537	# the only thing the caller has to do is pass the correct
		538	# registry (== where the callback attaches to).
		539	sub _attach {
		540	my ($registry, $klass, @arg) = @_;
		541
		542	my $object_type;
		543	my $prio = 0;
		544	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		545
		546	#TODO: get rid of this hack
		547	if ($attachable_klass{$klass}) {
		548	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		549	}
		550
		551	while (@arg) {
		552	my $type = shift @arg;
		553
		554	if ($type eq "prio") {
		555	$prio = shift @arg;
		556
		557	} elsif ($type eq "type") {
		558	$object_type = shift @arg;
		559	$registry = $CB_TYPE[$object_type] ||= [];
		560
		561	} elsif ($type eq "subtype") {
		562	defined $object_type or Carp::croak "subtype specified without type";
		563	my $object_subtype = shift @arg;
		564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		565
		566	} elsif ($type eq "package") {
		567	my $pkg = shift @arg;
		568
		569	while (my ($name, $id) = each %cb_id) {
		570	if (my $cb = $pkg->can ($name)) {
		571	_attach_cb $registry, $id, $prio, $cb;
		572	}
		573	}
		574
		575	} elsif (exists $cb_id{$type}) {
		576	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		577
		578	} elsif (ref $type) {
		579	warn "attaching objects not supported, ignoring.\n";
		580
		581	} else {
		582	shift @arg;
		583	warn "attach argument '$type' not supported, ignoring.\n";
		584	}
		585	}
		586	}
		587
		588	sub _object_attach {
		589	my ($obj, $name, %arg) = @_;
		590
		591	return if exists $obj->{_attachment}{$name};
		592
		593	if (my $attach = $attachment{$name}) {
		594	my $registry = $obj->registry;
		595
		596	for (@$attach) {
		597	my ($klass, @attach) = @$_;
		598	_attach $registry, $klass, @attach;
		599	}
		600
		601	$obj->{$name} = \%arg;
		602	} else {
		603	warn "object uses attachment '$name' that is not available, postponing.\n";
		604	}
		605
		606	$obj->{_attachment}{$name} = undef;
		607	}
		608
		609	sub cf::attachable::attach {
		610	if (ref $_[0]) {
		611	_object_attach @_;
		612	} else {
		613	_attach shift->_attach_registry, @_;
		614	}
		615	};
		616
		617	# all those should be optimised
		618	sub cf::attachable::detach {
		619	my ($obj, $name) = @_;
		620
		621	if (ref $obj) {
		622	delete $obj->{_attachment}{$name};
		623	reattach ($obj);
		624	} else {
		625	Carp::croak "cannot, currently, detach class attachments";
		626	}
		627	};
		628
		629	sub cf::attachable::attached {
		630	my ($obj, $name) = @_;
		631
		632	exists $obj->{_attachment}{$name}
		633	}
		634
		635	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		636	eval "#line " . __LINE__ . " 'cf.pm'
		637	sub cf::\L$klass\E::_attach_registry {
		638	(\\\@CB_$klass, KLASS_$klass)
		639	}
		640
		641	sub cf::\L$klass\E::attachment {
		642	my \$name = shift;
		643
		644	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		645	}
		646	";
		647	die if $@;
		648	}
		649
		650	our $override;
		651	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		652
		653	sub override {
		654	$override = 1;
		655	@invoke_results = ();
		656	}
		657
		658	sub do_invoke {
		659	my $event = shift;
		660	my $callbacks = shift;
		661
		662	@invoke_results = ();
		663
		664	local $override;
		665
		666	for (@$callbacks) {
		667	eval { &{$_->[1]} };
		668
		669	if ($@) {
		670	warn "$@";
		671	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		672	override;
		673	}
		674
		675	return 1 if $override;
		676	}
		677
		678	0
		679	}
		680
		681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		682
		683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		684
		685	Generate an object-specific event with the given arguments.
		686
		687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		688	removed in future versions), and there is no public API to access override
		689	results (if you must, access C<@cf::invoke_results> directly).
		690
448	=back	691	=back
449		692
450	=cut	693	=cut
451
452	*cf::object::valid =
453	*cf::player::valid =
454	*cf::map::valid = \&cf::_valid;
455		694
456	#############################################################################	695	#############################################################################
457	# object support	696	# object support
458		697
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 {	698	sub reattach {
		699	# basically do the same as instantiate, without calling instantiate
473	my ($obj) = @_;	700	my ($obj) = @_;
		701
474	my $registry = $obj->registry;	702	my $registry = $obj->registry;
475		703
476	@$registry = ();	704	@$registry = ();
477		705
478	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	706	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
479		707
480	for my $name (keys %{ $obj->{_attachment} || {} }) {	708	for my $name (keys %{ $obj->{_attachment} || {} }) {
481	if (my $attach = $attachment{$name}) {	709	if (my $attach = $attachment{$name}) {
482	for (@$attach) {	710	for (@$attach) {
483	my ($klass, @attach) = @$_;	711	my ($klass, @attach) = @$_;
484	_attach @$registry, $klass, @attach;	712	_attach $registry, $klass, @attach;
485	}	713	}
486	} else {	714	} else {
487	warn "object uses attachment '$name' that is not available, postponing.\n";	715	warn "object uses attachment '$name' that is not available, postponing.\n";
488	}	716	}
489	}	717	}
490	}	718	}
491		719
492	sub object_freezer_save {	720	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, $av);
537	}
538
539	()
540	}
541
542	attach_to_objects
543	prio => -1000000,	721	prio => -1000000,
		722	on_instantiate => sub {
		723	my ($obj, $data) = @_;
		724
		725	$data = from_json $data;
		726
		727	for (@$data) {
		728	my ($name, $args) = @$_;
		729
		730	$obj->attach ($name, %{$args || {} });
		731	}
		732	},
		733	on_reattach => \&reattach,
544	on_clone => sub {	734	on_clone => sub {
545	my ($src, $dst) = @_;	735	my ($src, $dst) = @_;
546		736
547	@{$dst->registry} = @{$src->registry};	737	@{$dst->registry} = @{$src->registry};
548		738
549	%$dst = %$src;	739	%$dst = %$src;
550		740
551	%{$dst->{_attachment}} = %{$src->{_attachment}}	741	%{$dst->{_attachment}} = %{$src->{_attachment}}
552	if exists $src->{_attachment};	742	if exists $src->{_attachment};
553	},	743	},
554	;	744	);
		745
		746	sub object_freezer_save {
		747	my ($filename, $rdata, $objs) = @_;
		748
		749	sync_job {
		750	if (length $$rdata) {
		751	warn sprintf "saving %s (%d,%d)\n",
		752	$filename, length $$rdata, scalar @$objs;
		753
		754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		755	chmod SAVE_MODE, $fh;
		756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		757	aio_fsync $fh;
		758	close $fh;
		759
		760	if (@$objs) {
		761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		762	chmod SAVE_MODE, $fh;
		763	my $data = Storable::nfreeze { version => 1, objs => $objs };
		764	aio_write $fh, 0, (length $data), $data, 0;
		765	aio_fsync $fh;
		766	close $fh;
		767	aio_rename "$filename.pst~", "$filename.pst";
		768	}
		769	} else {
		770	aio_unlink "$filename.pst";
		771	}
		772
		773	aio_rename "$filename~", $filename;
		774	} else {
		775	warn "FATAL: $filename~: $!\n";
		776	}
		777	} else {
		778	aio_unlink $filename;
		779	aio_unlink "$filename.pst";
		780	}
		781	}
		782	}
		783
		784	sub object_freezer_as_string {
		785	my ($rdata, $objs) = @_;
		786
		787	use Data::Dumper;
		788
		789	$$rdata . Dumper $objs
		790	}
		791
		792	sub object_thawer_load {
		793	my ($filename) = @_;
		794
		795	my ($data, $av);
		796
		797	(aio_load $filename, $data) >= 0
		798	or return;
		799
		800	unless (aio_stat "$filename.pst") {
		801	(aio_load "$filename.pst", $av) >= 0
		802	or return;
		803	$av = eval { (Storable::thaw <$av>)->{objs} };
		804	}
		805
		806	return ($data, $av);
		807	}
555		808
556	#############################################################################	809	#############################################################################
557	# old plug-in events	810	# command handling &c
558		811
559	sub inject_event {	812	=item cf::register_command $name => \&callback($ob,$args);
560	my $extension = shift;
561	my $event_code = shift;
562		813
563	my $cb = $hook[$event_code]{$extension}	814	Register a callback for execution when the client sends the user command
564	or return;	815	$name.
565		816
566	&$cb	817	=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		818
588	sub register_command {	819	sub register_command {
589	my ($name, $time, $cb) = @_;	820	my ($name, $cb) = @_;
590		821
591	my $caller = caller;	822	my $caller = caller;
592	#warn "registering command '$name/$time' to '$caller'";	823	#warn "registering command '$name/$time' to '$caller'";
593		824
594	push @{ $command{$name} }, [$time, $cb, $caller];	825	push @{ $COMMAND{$name} }, [$caller, $cb];
595	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
596	}	826	}
		827
		828	=item cf::register_extcmd $name => \&callback($pl,$packet);
		829
		830	Register a callbackf ro execution when the client sends an extcmd packet.
		831
		832	If the callback returns something, it is sent back as if reply was being
		833	called.
		834
		835	=cut
597		836
598	sub register_extcmd {	837	sub register_extcmd {
599	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
600		839
601	my $caller = caller;	840	my $caller = caller;
602	#warn "registering extcmd '$name' to '$caller'";	841	#warn "registering extcmd '$name' to '$caller'";
603		842
604	$extcmd{$name} = [$cb, $caller];	843	$EXTCMD{$name} = [$cb, $caller];
605	}	844	}
		845
		846	cf::player->attach (
		847	on_command => sub {
		848	my ($pl, $name, $params) = @_;
		849
		850	my $cb = $COMMAND{$name}
		851	or return;
		852
		853	for my $cmd (@$cb) {
		854	$cmd->[1]->($pl->ob, $params);
		855	}
		856
		857	cf::override;
		858	},
		859	on_extcmd => sub {
		860	my ($pl, $buf) = @_;
		861
		862	my $msg = eval { from_json $buf };
		863
		864	if (ref $msg) {
		865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		866	if (my %reply = $cb->[0]->($pl, $msg)) {
		867	$pl->ext_reply ($msg->{msgid}, %reply);
		868	}
		869	}
		870	} else {
		871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		872	}
		873
		874	cf::override;
		875	},
		876	);
606		877
607	sub register {	878	sub register {
608	my ($base, $pkg) = @_;	879	my ($base, $pkg) = @_;
609		880
610	#TODO	881	#TODO
…		…
629	. "#line 1 \"$path\"\n{\n"	900	. "#line 1 \"$path\"\n{\n"
630	. (do { local $/; <$fh> })	901	. (do { local $/; <$fh> })
631	. "\n};\n1";	902	. "\n};\n1";
632		903
633	eval $source	904	eval $source
634	or die "$path: $@";	905	or die $@ ? "$path: $@\n"
		906	: "extension disabled.\n";
635		907
636	push @exts, $pkg;	908	push @exts, $pkg;
637	$ext_pkg{$base} = $pkg;	909	$ext_pkg{$base} = $pkg;
638		910
639	# no strict 'refs';	911	# no strict 'refs';
…		…
652	# for my $idx (0 .. $#PLUGIN_EVENT) {	924	# for my $idx (0 .. $#PLUGIN_EVENT) {
653	# delete $hook[$idx]{$pkg};	925	# delete $hook[$idx]{$pkg};
654	# }	926	# }
655		927
656	# remove commands	928	# remove commands
657	for my $name (keys %command) {	929	for my $name (keys %COMMAND) {
658	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
659		931
660	if (@cb) {	932	if (@cb) {
661	$command{$name} = \@cb;	933	$COMMAND{$name} = \@cb;
662	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
663	} else {	934	} else {
664	delete $command{$name};
665	delete $COMMAND{"$name\000"};	935	delete $COMMAND{$name};
666	}	936	}
667	}	937	}
668		938
669	# remove extcmds	939	# remove extcmds
670	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
671	delete $extcmd{$name};	941	delete $EXTCMD{$name};
672	}	942	}
673		943
674	if (my $cb = $pkg->can ("unload")) {	944	if (my $cb = $pkg->can ("unload")) {
675	eval {	945	eval {
676	$cb->($pkg);	946	$cb->($pkg);
…		…
680		950
681	Symbol::delete_package $pkg;	951	Symbol::delete_package $pkg;
682	}	952	}
683		953
684	sub load_extensions {	954	sub load_extensions {
685	my $LIBDIR = maps_directory "perl";
686
687	for my $ext (<$LIBDIR/*.ext>) {	955	for my $ext (<$LIBDIR/*.ext>) {
688	next unless -r $ext;	956	next unless -r $ext;
689	eval {	957	eval {
690	load_extension $ext;	958	load_extension $ext;
691	1	959	1
692	} or warn "$ext not loaded: $@";	960	} or warn "$ext not loaded: $@";
693	}	961	}
694	}	962	}
695		963
696	#############################################################################	964	#############################################################################
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	965	# load/save/clean perl data associated with a map
722		966
723	*cf::mapsupport::on_clean = sub {	967	*cf::mapsupport::on_clean = sub {
724	my ($map) = @_;	968	my ($map) = @_;
725		969
…		…
727	defined $path or return;	971	defined $path or return;
728		972
729	unlink "$path.pst";	973	unlink "$path.pst";
730	};	974	};
731		975
732	attach_to_maps prio => -10000, package => cf::mapsupport::;	976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
733		977
734	#############################################################################	978	#############################################################################
735	# load/save perl data associated with player->ob objects	979	# load/save perl data associated with player->ob objects
736		980
737	sub all_objects(@) {	981	sub all_objects(@) {
738	@_, map all_objects ($_->inv), @_	982	@_, map all_objects ($_->inv), @_
739	}	983	}
740		984
741	# TODO: compatibility cruft, remove when no longer needed	985	# TODO: compatibility cruft, remove when no longer needed
742	attach_to_players	986	cf::player->attach (
743	on_load => sub {	987	on_load => sub {
744	my ($pl, $path) = @_;	988	my ($pl, $path) = @_;
745		989
746	for my $o (all_objects $pl->ob) {	990	for my $o (all_objects $pl->ob) {
747	if (my $value = $o->get_ob_key_value ("_perl_data")) {	991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
749		993
750	%$o = %{ Storable::thaw pack "H*", $value };	994	%$o = %{ Storable::thaw pack "H*", $value };
751	}	995	}
752	}	996	}
753	},	997	},
754	;	998	);
755		999
756	#############################################################################	1000	#############################################################################
757		1001
758	=head2 CORE EXTENSIONS	1002	=head2 CORE EXTENSIONS
759		1003
760	Functions and methods that extend core crossfire objects.	1004	Functions and methods that extend core crossfire objects.
		1005
		1006	=head3 cf::player
761		1007
762	=over 4	1008	=over 4
763		1009
764	=item cf::player::exists $login	1010	=item cf::player::exists $login
765		1011
…		…
770	sub cf::player::exists($) {	1016	sub cf::player::exists($) {
771	cf::player::find $_[0]	1017	cf::player::find $_[0]
772	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
773	}	1019	}
774		1020
		1021	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1022
		1023	Sends an ext reply to the player.
		1024
		1025	=cut
		1026
		1027	sub cf::player::ext_reply($$$%) {
		1028	my ($self, $id, %msg) = @_;
		1029
		1030	$msg{msgid} = $id;
		1031
		1032	$self->send ("ext " . to_json \%msg);
		1033	}
		1034
		1035	=back
		1036
		1037
		1038	=head3 cf::map
		1039
		1040	=over 4
		1041
		1042	=cut
		1043
		1044	package cf::map;
		1045
		1046	use Fcntl;
		1047	use Coro::AIO;
		1048
		1049	our $MAX_RESET = 7200;
		1050	our $DEFAULT_RESET = 3600;
		1051	$MAX_RESET = 10;#d#
		1052	$DEFAULT_RESET = 10;#d#
		1053
		1054	sub generate_random_map {
		1055	my ($path, $rmp) = @_;
		1056
		1057	# mit "rum" bekleckern, nicht
		1058	cf::map::_create_random_map
		1059	$path,
		1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1063	$rmp->{exit_on_final_map},
		1064	$rmp->{xsize}, $rmp->{ysize},
		1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1070	(cf::region::find $rmp->{region})
		1071	}
		1072
		1073	# and all this just because we cannot iterate over
		1074	# all maps in C++...
		1075	sub change_all_map_light {
		1076	my ($change) = @_;
		1077
		1078	$_->change_map_light ($change) for values %cf::MAP;
		1079	}
		1080
		1081	sub try_load_header($) {
		1082	my ($path) = @_;
		1083
		1084	utf8::encode $path;
		1085	aio_open $path, O_RDONLY, 0
		1086	or return;
		1087
		1088	my $map = cf::map::new
		1089	or return;
		1090
		1091	$map->load_header ($path)
		1092	or return;
		1093
		1094	$map->{load_path} = $path;
		1095	use Data::Dumper; warn Dumper $map;#d#
		1096
		1097	$map
		1098	}
		1099
		1100	sub find_map {
		1101	my ($path, $origin) = @_;
		1102
		1103	#warn "find_map<$path,$origin>\n";#d#
		1104
		1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;
		1106	my $key = $path->as_string;
		1107
		1108	$cf::MAP{$key} || do {
		1109	# do it the slow way
		1110	my $map = try_load_header $path->save_path;
		1111
		1112	if ($map) {
		1113	# safety
		1114	$map->{instantiate_time} = $cf::RUNTIME
		1115	if $map->{instantiate_time} > $cf::RUNTIME;
		1116	} else {
		1117	if (my $rmp = $path->random_map_params) {
		1118	$map = generate_random_map $key, $rmp;
		1119	} else {
		1120	$map = try_load_header $path->load_path;
		1121	}
		1122
		1123	$map or return;
		1124
		1125	$map->{instantiate_time} = $cf::RUNTIME;
		1126	$map->instantiate;
		1127
		1128	# per-player maps become, after loading, normal maps
		1129	$map->per_player (0) if $path->{user_rel};
		1130	}
		1131
		1132	$map->path ($key);
		1133	$map->{path} = $path;
		1134	$map->last_access ($cf::RUNTIME);
		1135
		1136	$map->reset if $map->should_reset;
		1137
		1138	$cf::MAP{$key} = $map
		1139	}
		1140	}
		1141
		1142	sub load {
		1143	my ($self) = @_;
		1144
		1145	return if $self->in_memory != cf::MAP_SWAPPED;
		1146
		1147	$self->in_memory (cf::MAP_LOADING);
		1148
		1149	my $path = $self->{path};
		1150
		1151	$self->alloc;
		1152	$self->load_objects ($self->{load_path}, 1)
		1153	or return;
		1154
		1155	if (my $uniq = $path->uniq_path) {
		1156	utf8::encode $uniq;
		1157	if (aio_open $uniq, O_RDONLY, 0) {
		1158	$self->clear_unique_items;
		1159	$self->load_objects ($uniq, 0);
		1160	}
		1161	}
		1162
		1163	# now do the right thing for maps
		1164	$self->link_multipart_objects;
		1165
		1166	if ($self->{path}->is_style_map) {
		1167	$self->{deny_save} = 1;
		1168	$self->{deny_reset} = 1;
		1169	} else {
		1170	$self->fix_auto_apply;
		1171	$self->decay_objects;
		1172	$self->update_buttons;
		1173	$self->set_darkness_map;
		1174	$self->difficulty ($self->estimate_difficulty)
		1175	unless $self->difficulty;
		1176	$self->activate;
		1177	}
		1178
		1179	$self->in_memory (cf::MAP_IN_MEMORY);
		1180	}
		1181
		1182	sub load_map_sync {
		1183	my ($path, $origin) = @_;
		1184
		1185	#warn "load_map_sync<$path, $origin>\n";#d#
		1186
		1187	cf::sync_job {
		1188	my $map = cf::map::find_map $path, $origin
		1189	or return;
		1190	$map->load;
		1191	$map
		1192	}
		1193	}
		1194
		1195	sub save {
		1196	my ($self) = @_;
		1197
		1198	my $save = $self->{path}->save_path; utf8::encode $save;
		1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1200
		1201	$self->{last_save} = $cf::RUNTIME;
		1202
		1203	return unless $self->dirty;
		1204
		1205	$self->{load_path} = $save;
		1206
		1207	return if $self->{deny_save};
		1208
		1209	warn "saving map ", $self->path;
		1210
		1211	if ($uniq) {
		1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1213	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1214	} else {
		1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1216	}
		1217	}
		1218
		1219	sub swap_out {
		1220	my ($self) = @_;
		1221
		1222	return if $self->players;
		1223	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1224	return if $self->{deny_save};
		1225
		1226	$self->save;
		1227	$self->clear;
		1228	$self->in_memory (cf::MAP_SWAPPED);
		1229	}
		1230
		1231	sub should_reset {
		1232	my ($map) = @_;
		1233
		1234	# TODO: safety, remove and allow resettable per-player maps
		1235	return if $map->{path}{user_rel};#d#
		1236	return if $map->{deny_reset};
		1237	#return unless $map->reset_timeout;
		1238
		1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
		1240
		1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
		1242	}
		1243
		1244	sub reset {
		1245	my ($self) = @_;
		1246
		1247	return if $self->players;
		1248	return if $self->{path}{user_rel};#d#
		1249
		1250	warn "resetting map ", $self->path;#d#
		1251
		1252	utf8::encode (my $save = $self->{path}->save_path);
		1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1255
		1256	$_->clear_links_to ($self) for values %cf::MAP;
		1257
		1258	$self->clear;
		1259	$self->in_memory (cf::MAP_SWAPPED);
		1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
		1261	}
		1262
		1263	sub customise_for {
		1264	my ($map, $ob) = @_;
		1265
		1266	if ($map->per_player) {
		1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1268	}
		1269
		1270	$map
		1271	}
		1272
		1273	sub emergency_save {
		1274	local $cf::FREEZE = 1;
		1275
		1276	warn "enter emergency map save\n";
		1277
		1278	cf::sync_job {
		1279	warn "begin emergency map save\n";
		1280	$_->save for values %cf::MAP;
		1281	};
		1282
		1283	warn "end emergency map save\n";
		1284	}
		1285
		1286	package cf;
		1287
		1288	=back
		1289
		1290
		1291	=head3 cf::object::player
		1292
		1293	=over 4
		1294
775	=item $player->reply ($npc, $msg[, $flags])	1295	=item $player_object->reply ($npc, $msg[, $flags])
776		1296
777	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1297	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
778	can be C<undef>. Does the right thing when the player is currently in a	1298	can be C<undef>. Does the right thing when the player is currently in a
779	dialogue with the given NPC character.	1299	dialogue with the given NPC character.
780		1300
781	=cut	1301	=cut
782		1302
783	# rough implementation of a future "reply" method that works	1303	# rough implementation of a future "reply" method that works
784	# with dialog boxes.	1304	# with dialog boxes.
		1305	#TODO: the first argument must go, split into a $npc->reply_to ( method
785	sub cf::object::player::reply($$$;$) {	1306	sub cf::object::player::reply($$$;$) {
786	my ($self, $npc, $msg, $flags) = @_;	1307	my ($self, $npc, $msg, $flags) = @_;
787		1308
788	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1309	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
789		1310
…		…
793	$msg = $npc->name . " says: $msg" if $npc;	1314	$msg = $npc->name . " says: $msg" if $npc;
794	$self->message ($msg, $flags);	1315	$self->message ($msg, $flags);
795	}	1316	}
796	}	1317	}
797		1318
798	=item $player->ext_reply ($msgid, $msgtype, %msg)	1319	=item $player_object->may ("access")
799		1320
800	Sends an ext reply to the player.	1321	Returns wether the given player is authorized to access resource "access"
		1322	(e.g. "command_wizcast").
801		1323
802	=cut	1324	=cut
803		1325
804	sub cf::player::ext_reply($$$%) {	1326	sub cf::object::player::may {
		1327	my ($self, $access) = @_;
		1328
		1329	$self->flag (cf::FLAG_WIZ) ||
		1330	(ref $cf::CFG{"may_$access"}
		1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1332	: $cf::CFG{"may_$access"})
		1333	}
		1334
		1335	sub cf::object::player::enter_link {
		1336	my ($self) = @_;
		1337
		1338	return if $self->map == $LINK_MAP;
		1339
		1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1341	if $self->map;
		1342
		1343	$self->enter_map ($LINK_MAP, 20, 20);
		1344	$self->deactivate_recursive;
		1345	}
		1346
		1347	sub cf::object::player::leave_link {
		1348	my ($self, $map, $x, $y) = @_;
		1349
		1350	my $link_pos = delete $self->{_link_pos};
		1351
		1352	unless ($map) {
		1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1354
		1355	# restore original map position
		1356	($map, $x, $y) = @{ $link_pos || [] };
		1357	$map = cf::map::find_map $map;
		1358
		1359	unless ($map) {
		1360	($map, $x, $y) = @$EMERGENCY_POSITION;
		1361	$map = cf::map::find_map $map
		1362	or die "FATAL: cannot load emergency map\n";
		1363	}
		1364	}
		1365
		1366	($x, $y) = (-1, -1)
		1367	unless (defined $x) && (defined $y);
		1368
		1369	# use -1 or undef as default coordinates, not 0, 0
		1370	($x, $y) = ($map->enter_x, $map->enter_y)
		1371	if $x <=0 && $y <= 0;
		1372
		1373	$map->load;
		1374
		1375	$self->activate_recursive;
		1376	$self->enter_map ($map, $x, $y);
		1377	}
		1378
		1379	=item $player_object->goto_map ($map, $x, $y)
		1380
		1381	=cut
		1382
		1383	sub cf::object::player::goto_map {
		1384	my ($self, $path, $x, $y) = @_;
		1385
		1386	$self->enter_link;
		1387
		1388	(Coro::async {
		1389	$path = new cf::path $path;
		1390
		1391	my $map = cf::map::find_map $path->as_string;
		1392	$map = $map->customise_for ($self) if $map;
		1393
		1394	warn "entering ", $map->path, " at ($x, $y)\n"
		1395	if $map;
		1396
		1397	$self->leave_link ($map, $x, $y);
		1398	})->prio (1);
		1399	}
		1400
		1401	=item $player_object->enter_exit ($exit_object)
		1402
		1403	=cut
		1404
		1405	sub parse_random_map_params {
		1406	my ($spec) = @_;
		1407
		1408	my $rmp = { # defaults
		1409	xsize => 10,
		1410	ysize => 10,
		1411	};
		1412
		1413	for (split /\n/, $spec) {
		1414	my ($k, $v) = split /\s+/, $_, 2;
		1415
		1416	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1417	}
		1418
		1419	$rmp
		1420	}
		1421
		1422	sub prepare_random_map {
		1423	my ($exit) = @_;
		1424
		1425	# all this does is basically replace the /! path by
		1426	# a new random map path (?random/...) with a seed
		1427	# that depends on the exit object
		1428
		1429	my $rmp = parse_random_map_params $exit->msg;
		1430
		1431	if ($exit->map) {
		1432	$rmp->{region} = $exit->map->region_name;
		1433	$rmp->{origin_map} = $exit->map->path;
		1434	$rmp->{origin_x} = $exit->x;
		1435	$rmp->{origin_y} = $exit->y;
		1436	}
		1437
		1438	$rmp->{random_seed} ||= $exit->random_seed;
		1439
		1440	my $data = cf::to_json $rmp;
		1441	my $md5 = Digest::MD5::md5_hex $data;
		1442
		1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1444	aio_write $fh, 0, (length $data), $data, 0;
		1445
		1446	$exit->slaying ("?random/$md5");
		1447	$exit->msg (undef);
		1448	}
		1449	}
		1450
		1451	sub cf::object::player::enter_exit {
805	my ($self, $id, %msg) = @_;	1452	my ($self, $exit) = @_;
806		1453
807	$msg{msgid} = $id;	1454	return unless $self->type == cf::PLAYER;
808		1455
809	$self->send ("ext " . to_json \%msg);	1456	$self->enter_link;
		1457
		1458	(Coro::async {
		1459	unless (eval {
		1460
		1461	prepare_random_map $exit
		1462	if $exit->slaying eq "/!";
		1463
		1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1466
		1467	1;
		1468	}) {
		1469	$self->message ("Something went wrong deep within the crossfire server. "
		1470	. "I'll try to bring you back to the map you were before. "
		1471	. "Please report this to the dungeon master",
		1472	cf::NDI_UNIQUE | cf::NDI_RED);
		1473
		1474	warn "ERROR in enter_exit: $@";
		1475	$self->leave_link;
		1476	}
		1477	})->prio (1);
810	}	1478	}
		1479
		1480	=head3 cf::client
		1481
		1482	=over 4
		1483
		1484	=item $client->send_drawinfo ($text, $flags)
		1485
		1486	Sends a drawinfo packet to the client. Circumvents output buffering so
		1487	should not be used under normal circumstances.
		1488
		1489	=cut
		1490
		1491	sub cf::client::send_drawinfo {
		1492	my ($self, $text, $flags) = @_;
		1493
		1494	utf8::encode $text;
		1495	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1496	}
		1497
		1498
		1499	=item $success = $client->query ($flags, "text", \&cb)
		1500
		1501	Queues a query to the client, calling the given callback with
		1502	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1503	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1504
		1505	Queries can fail, so check the return code. Or don't, as queries will become
		1506	reliable at some point in the future.
		1507
		1508	=cut
		1509
		1510	sub cf::client::query {
		1511	my ($self, $flags, $text, $cb) = @_;
		1512
		1513	return unless $self->state == ST_PLAYING
		1514	|| $self->state == ST_SETUP
		1515	|| $self->state == ST_CUSTOM;
		1516
		1517	$self->state (ST_CUSTOM);
		1518
		1519	utf8::encode $text;
		1520	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1521
		1522	$self->send_packet ($self->{query_queue}[0][0])
		1523	if @{ $self->{query_queue} } == 1;
		1524	}
		1525
		1526	cf::client->attach (
		1527	on_reply => sub {
		1528	my ($ns, $msg) = @_;
		1529
		1530	# this weird shuffling is so that direct followup queries
		1531	# get handled first
		1532	my $queue = delete $ns->{query_queue};
		1533
		1534	(shift @$queue)->[1]->($msg);
		1535
		1536	push @{ $ns->{query_queue} }, @$queue;
		1537
		1538	if (@{ $ns->{query_queue} } == @$queue) {
		1539	if (@$queue) {
		1540	$ns->send_packet ($ns->{query_queue}[0][0]);
		1541	} else {
		1542	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1543	}
		1544	}
		1545	},
		1546	);
		1547
		1548	=item $client->coro (\&cb)
		1549
		1550	Create a new coroutine, running the specified callback. The coroutine will
		1551	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1552	or loss of connection).
		1553
		1554	=cut
		1555
		1556	sub cf::client::coro {
		1557	my ($self, $cb) = @_;
		1558
		1559	my $coro; $coro = async {
		1560	eval {
		1561	$cb->();
		1562	};
		1563	warn $@ if $@;
		1564	};
		1565
		1566	$coro->on_destroy (sub {
		1567	delete $self->{_coro}{$coro+0};
		1568	});
		1569
		1570	$self->{_coro}{$coro+0} = $coro;
		1571
		1572	$coro
		1573	}
		1574
		1575	cf::client->attach (
		1576	on_destroy => sub {
		1577	my ($ns) = @_;
		1578
		1579	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1580	},
		1581	);
811		1582
812	=back	1583	=back
813		1584
814	=cut
815
816	#############################################################################
817		1585
818	=head2 SAFE SCRIPTING	1586	=head2 SAFE SCRIPTING
819		1587
820	Functions that provide a safe environment to compile and execute	1588	Functions that provide a safe environment to compile and execute
821	snippets of perl code without them endangering the safety of the server	1589	snippets of perl code without them endangering the safety of the server
822	itself. Looping constructs, I/O operators and other built-in functionality	1590	itself. Looping constructs, I/O operators and other built-in functionality
823	is not available in the safe scripting environment, and the number of	1591	is not available in the safe scripting environment, and the number of
824	functions and methods that cna be called is greatly reduced.	1592	functions and methods that can be called is greatly reduced.
825		1593
826	=cut	1594	=cut
827		1595
828	our $safe = new Safe "safe";	1596	our $safe = new Safe "safe";
829	our $safe_hole = new Safe::Hole;	1597	our $safe_hole = new Safe::Hole;
…		…
836		1604
837	=pod	1605	=pod
838		1606
839	The following fucntions and emthods are available within a safe environment:	1607	The following fucntions and emthods are available within a safe environment:
840		1608
841	cf::object contr pay_amount pay_player	1609	cf::object contr pay_amount pay_player map
842	cf::object::player player	1610	cf::object::player player
843	cf::player peaceful	1611	cf::player peaceful
		1612	cf::map trigger
844		1613
845	=cut	1614	=cut
846		1615
847	for (	1616	for (
848	["cf::object" => qw(contr pay_amount pay_player)],	1617	["cf::object" => qw(contr pay_amount pay_player map)],
849	["cf::object::player" => qw(player)],	1618	["cf::object::player" => qw(player)],
850	["cf::player" => qw(peaceful)],	1619	["cf::player" => qw(peaceful)],
		1620	["cf::map" => qw(trigger)],
851	) {	1621	) {
852	no strict 'refs';	1622	no strict 'refs';
853	my ($pkg, @funs) = @$_;	1623	my ($pkg, @funs) = @$_;
854	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1624	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
855	for @funs;	1625	for @funs;
…		…
965		1735
966	Immediately write the database to disk I<if it is dirty>.	1736	Immediately write the database to disk I<if it is dirty>.
967		1737
968	=cut	1738	=cut
969		1739
		1740	our $DB;
		1741
970	{	1742	{
971	my $db;
972	my $path = cf::localdir . "/database.pst";	1743	my $path = cf::localdir . "/database.pst";
973		1744
974	sub db_load() {	1745	sub db_load() {
975	warn "loading database $path\n";#d# remove later	1746	warn "loading database $path\n";#d# remove later
976	$db = stat $path ? Storable::retrieve $path : { };	1747	$DB = stat $path ? Storable::retrieve $path : { };
977	}	1748	}
978		1749
979	my $pid;	1750	my $pid;
980		1751
981	sub db_save() {	1752	sub db_save() {
982	warn "saving database $path\n";#d# remove later	1753	warn "saving database $path\n";#d# remove later
983	waitpid $pid, 0 if $pid;	1754	waitpid $pid, 0 if $pid;
984	if (0 == ($pid = fork)) {	1755	if (0 == ($pid = fork)) {
985	$db->{_meta}{version} = 1;	1756	$DB->{_meta}{version} = 1;
986	Storable::nstore $db, "$path~";	1757	Storable::nstore $DB, "$path~";
987	rename "$path~", $path;	1758	rename "$path~", $path;
988	cf::_exit 0 if defined $pid;	1759	cf::_exit 0 if defined $pid;
989	}	1760	}
990	}	1761	}
991		1762
…		…
994	sub db_sync() {	1765	sub db_sync() {
995	db_save if $dirty;	1766	db_save if $dirty;
996	undef $dirty;	1767	undef $dirty;
997	}	1768	}
998		1769
999	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1000	db_sync;	1771	db_sync;
1001	});	1772	});
1002		1773
1003	sub db_dirty() {	1774	sub db_dirty() {
1004	$dirty = 1;	1775	$dirty = 1;
1005	$idle->start;	1776	$idle->start;
1006	}	1777	}
1007		1778
1008	sub db_get($;$) {	1779	sub db_get($;$) {
1009	@_ >= 2	1780	@_ >= 2
1010	? $db->{$_[0]}{$_[1]}	1781	? $DB->{$_[0]}{$_[1]}
1011	: ($db->{$_[0]} ||= { })	1782	: ($DB->{$_[0]} ||= { })
1012	}	1783	}
1013		1784
1014	sub db_put($$;$) {	1785	sub db_put($$;$) {
1015	if (@_ >= 3) {	1786	if (@_ >= 3) {
1016	$db->{$_[0]}{$_[1]} = $_[2];	1787	$DB->{$_[0]}{$_[1]} = $_[2];
1017	} else {	1788	} else {
1018	$db->{$_[0]} = $_[1];	1789	$DB->{$_[0]} = $_[1];
1019	}	1790	}
1020	db_dirty;	1791	db_dirty;
1021	}	1792	}
1022		1793
1023	attach_global	1794	cf::global->attach (
1024	prio => 10000,	1795	prio => 10000,
1025	on_cleanup => sub {	1796	on_cleanup => sub {
1026	db_sync;	1797	db_sync;
1027	},	1798	},
1028	;	1799	);
1029	}	1800	}
1030		1801
1031	#############################################################################	1802	#############################################################################
1032	# the server's main()	1803	# the server's main()
1033		1804
…		…
1035	open my $fh, "<:utf8", cf::confdir . "/config"	1806	open my $fh, "<:utf8", cf::confdir . "/config"
1036	or return;	1807	or return;
1037		1808
1038	local $/;	1809	local $/;
1039	*CFG = YAML::Syck::Load <$fh>;	1810	*CFG = YAML::Syck::Load <$fh>;
1040
1041	use Data::Dumper; warn Dumper \%CFG;
1042	}	1811	}
1043		1812
1044	sub main {	1813	sub main {
		1814	# we must not ever block the main coroutine
		1815	local $Coro::idle = sub {
		1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1817	(Coro::unblock_sub {
		1818	Event::one_event;
		1819	})->();
		1820	};
		1821
1045	cfg_load;	1822	cfg_load;
1046	db_load;	1823	db_load;
1047	load_extensions;	1824	load_extensions;
1048	Event::loop;	1825	Event::loop;
1049	}	1826	}
1050		1827
1051	#############################################################################	1828	#############################################################################
1052	# initialisation	1829	# initialisation
1053		1830
1054	sub _perl_reload(&) {	1831	sub perl_reload() {
1055	my ($msg) = @_;	1832	# can/must only be called in main
		1833	if ($Coro::current != $Coro::main) {
		1834	warn "can only reload from main coroutine\n";
		1835	return;
		1836	}
1056		1837
1057	$msg->("reloading...");	1838	warn "reloading...";
		1839
		1840	local $FREEZE = 1;
		1841	cf::emergency_save;
1058		1842
1059	eval {	1843	eval {
		1844	# if anything goes wrong in here, we should simply crash as we already saved
		1845
1060	# cancel all watchers	1846	# cancel all watchers
1061	$_->cancel for Event::all_watchers;	1847	for (Event::all_watchers) {
		1848	$_->cancel if $_->data & WF_AUTOCANCEL;
		1849	}
		1850
		1851	# cancel all extension coros
		1852	$_->cancel for values %EXT_CORO;
		1853	%EXT_CORO = ();
1062		1854
1063	# unload all extensions	1855	# unload all extensions
1064	for (@exts) {	1856	for (@exts) {
1065	$msg->("unloading <$_>");	1857	warn "unloading <$_>";
1066	unload_extension $_;	1858	unload_extension $_;
1067	}	1859	}
1068		1860
1069	# unload all modules loaded from $LIBDIR	1861	# unload all modules loaded from $LIBDIR
1070	while (my ($k, $v) = each %INC) {	1862	while (my ($k, $v) = each %INC) {
1071	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1072		1864
1073	$msg->("removing <$k>");	1865	warn "removing <$k>";
1074	delete $INC{$k};	1866	delete $INC{$k};
1075		1867
1076	$k =~ s/\.pm$//;	1868	$k =~ s/\.pm$//;
1077	$k =~ s/\//::/g;	1869	$k =~ s/\//::/g;
1078		1870
…		…
1083	Symbol::delete_package $k;	1875	Symbol::delete_package $k;
1084	}	1876	}
1085		1877
1086	# sync database to disk	1878	# sync database to disk
1087	cf::db_sync;	1879	cf::db_sync;
		1880	IO::AIO::flush;
1088		1881
1089	# get rid of safe::, as good as possible	1882	# get rid of safe::, as good as possible
1090	Symbol::delete_package "safe::$_"	1883	Symbol::delete_package "safe::$_"
1091	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1092		1885
1093	# remove register_script_function callbacks	1886	# remove register_script_function callbacks
1094	# TODO	1887	# TODO
1095		1888
1096	# unload cf.pm "a bit"	1889	# unload cf.pm "a bit"
…		…
1099	# don't, removes xs symbols, too,	1892	# don't, removes xs symbols, too,
1100	# and global variables created in xs	1893	# and global variables created in xs
1101	#Symbol::delete_package __PACKAGE__;	1894	#Symbol::delete_package __PACKAGE__;
1102		1895
1103	# reload cf.pm	1896	# reload cf.pm
1104	$msg->("reloading cf.pm");	1897	warn "reloading cf.pm";
1105	require cf;	1898	require cf;
		1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1106		1900
1107	# load config and database again	1901	# load config and database again
1108	cf::cfg_load;	1902	cf::cfg_load;
1109	cf::db_load;	1903	cf::db_load;
1110		1904
1111	# load extensions	1905	# load extensions
1112	$msg->("load extensions");	1906	warn "load extensions";
1113	cf::load_extensions;	1907	cf::load_extensions;
1114		1908
1115	# reattach attachments to objects	1909	# reattach attachments to objects
1116	$msg->("reattach");	1910	warn "reattach";
1117	_global_reattach;	1911	_global_reattach;
1118	};	1912	};
1119	$msg->($@) if $@;
1120		1913
1121	$msg->("reloaded");	1914	if ($@) {
		1915	warn $@;
		1916	warn "error while reloading, exiting.";
		1917	exit 1;
		1918	}
		1919
		1920	warn "reloaded successfully";
1122	};	1921	};
1123		1922
1124	sub perl_reload() {	1923	#############################################################################
1125	_perl_reload {
1126	warn $_[0];
1127	print "$_[0]\n";
1128	};
1129	}
1130		1924
		1925	unless ($LINK_MAP) {
		1926	$LINK_MAP = cf::map::new;
		1927
		1928	$LINK_MAP->width (41);
		1929	$LINK_MAP->height (41);
		1930	$LINK_MAP->alloc;
		1931	$LINK_MAP->path ("{link}");
		1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		1934
		1935	# dirty hack because... archetypes are not yet loaded
		1936	Event->timer (
		1937	after => 2,
		1938	cb => sub {
		1939	$_[0]->w->cancel;
		1940
		1941	# provide some exits "home"
		1942	my $exit = cf::object::new "exit";
		1943
		1944	$exit->slaying ($EMERGENCY_POSITION->[0]);
		1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		1947
		1948	$LINK_MAP->insert ($exit->clone, 19, 19);
		1949	$LINK_MAP->insert ($exit->clone, 19, 20);
		1950	$LINK_MAP->insert ($exit->clone, 19, 21);
		1951	$LINK_MAP->insert ($exit->clone, 20, 19);
		1952	$LINK_MAP->insert ($exit->clone, 20, 21);
		1953	$LINK_MAP->insert ($exit->clone, 21, 19);
		1954	$LINK_MAP->insert ($exit->clone, 21, 20);
		1955	$LINK_MAP->insert ($exit->clone, 21, 21);
		1956
		1957	$exit->destroy;
		1958	});
		1959
		1960	$LINK_MAP->{deny_save} = 1;
		1961	$LINK_MAP->{deny_reset} = 1;
		1962
		1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		1964	}
		1965
		1966	register "<global>", __PACKAGE__;
		1967
1131	register_command "perl-reload", 0, sub {	1968	register_command "perl-reload" => sub {
1132	my ($who, $arg) = @_;	1969	my ($who, $arg) = @_;
1133		1970
1134	if ($who->flag (FLAG_WIZ)) {	1971	if ($who->flag (FLAG_WIZ)) {
		1972	$who->message ("start of reload.");
1135	_perl_reload {	1973	perl_reload;
1136	warn $_[0];	1974	$who->message ("end of reload.");
1137	$who->message ($_[0]);
1138	};
1139	}	1975	}
1140	};	1976	};
1141		1977
1142	register "<global>", __PACKAGE__;
1143
1144	unshift @INC, $LIBDIR;	1978	unshift @INC, $LIBDIR;
1145		1979
1146	$TICK_WATCHER = Event->timer (	1980	$TICK_WATCHER = Event->timer (
		1981	reentrant => 0,
1147	prio => 1,	1982	prio => 0,
1148	at => $NEXT_TICK || 1,	1983	at => $NEXT_TICK || $TICK,
		1984	data => WF_AUTOCANCEL,
1149	cb => sub {	1985	cb => sub {
		1986	unless ($FREEZE) {
1150	cf::server_tick; # one server iteration	1987	cf::server_tick; # one server iteration
		1988	$RUNTIME += $TICK;
		1989	}
1151		1990
1152	my $NOW = Event::time;
1153	$NEXT_TICK += $TICK;	1991	$NEXT_TICK += $TICK;
1154		1992
1155	# if we are delayed by four ticks, skip them all	1993	# if we are delayed by four ticks or more, skip them all
1156	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1157		1995
1158	$TICK_WATCHER->at ($NEXT_TICK);	1996	$TICK_WATCHER->at ($NEXT_TICK);
1159	$TICK_WATCHER->start;	1997	$TICK_WATCHER->start;
1160	},	1998	},
1161	);	1999	);
1162		2000
		2001	IO::AIO::max_poll_time $TICK * 0.2;
		2002
		2003	Event->io (
		2004	fd => IO::AIO::poll_fileno,
		2005	poll => 'r',
		2006	prio => 5,
		2007	data => WF_AUTOCANCEL,
		2008	cb => \&IO::AIO::poll_cb,
		2009	);
		2010
		2011	Event->timer (
		2012	data => WF_AUTOCANCEL,
		2013	after => 0,
		2014	interval => 10,
		2015	cb => sub {
		2016	(Coro::unblock_sub {
		2017	write_runtime
		2018	or warn "ERROR: unable to write runtime file: $!";
		2019	})->();
		2020	},
		2021	);
		2022
1163	1	2023	1
1164		2024

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