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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.86 by root, Thu Dec 14 05:09:32 2006 UTC vs.
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3 ();
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Digest::MD5;
		21	use Fcntl;
10	use IO::AIO ();	22	use IO::AIO 2.31 ();
11	use YAML::Syck ();	23	use YAML::Syck ();
12	use Time::HiRes;	24	use Time::HiRes;
13	use Event;	25
14	$Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
15		27
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	29	$YAML::Syck::ImplicitUnicode = 1;
18		30
19	use strict;	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
20		34
21	our %COMMAND = ();	35	our %COMMAND = ();
22	our %COMMAND_TIME = ();	36	our %COMMAND_TIME = ();
23	our %EXTCMD = ();	37	our %EXTCMD = ();
24		38
25	_init_vars;
26
27	our @EVENT;	39	our @EVENT;
28	our $LIBDIR = maps_directory "perl";	40	our $LIBDIR = datadir . "/ext";
29		41
30	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
31	our $TICK_WATCHER;	43	our $TICK_WATCHER;
32	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
33		46
34	our %CFG;	47	our %CFG;
35		48
36	our $UPTIME; $UPTIME ||= time;	49	our $UPTIME; $UPTIME ||= time;
		50	our $RUNTIME;
		51
		52	our %MAP; # all maps
		53	our $LINK_MAP; # the special {link} map
		54	our $RANDOM_MAPS = cf::localdir . "/random";
		55	our %EXT_CORO;
		56
		57	binmode STDOUT;
		58	binmode STDERR;
		59
		60	# read virtual server time, if available
		61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		62	open my $fh, "<", cf::localdir . "/runtime"
		63	or die "unable to read runtime file: $!";
		64	$RUNTIME = <$fh> + 0.;
		65	}
		66
		67	mkdir cf::localdir;
		68	mkdir cf::localdir . "/" . cf::playerdir;
		69	mkdir cf::localdir . "/" . cf::tmpdir;
		70	mkdir cf::localdir . "/" . cf::uniquedir;
		71	mkdir $RANDOM_MAPS;
		72
		73	# a special map that is always available
		74	our $LINK_MAP;
		75	our $EMERGENCY_POSITION;
37		76
38	#############################################################################	77	#############################################################################
39		78
40	=head2 GLOBAL VARIABLES	79	=head2 GLOBAL VARIABLES
41		80
42	=over 4	81	=over 4
43		82
44	=item $cf::UPTIME	83	=item $cf::UPTIME
45		84
46	The timestamp of the server start (so not actually an uptime).	85	The timestamp of the server start (so not actually an uptime).
		86
		87	=item $cf::RUNTIME
		88
		89	The time this server has run, starts at 0 and is increased by $cf::TICK on
		90	every server tick.
47		91
48	=item $cf::LIBDIR	92	=item $cf::LIBDIR
49		93
50	The perl library directory, where extensions and cf-specific modules can	94	The perl library directory, where extensions and cf-specific modules can
51	be found. It will be added to C<@INC> automatically.	95	be found. It will be added to C<@INC> automatically.
		96
		97	=item $cf::NOW
		98
		99	The time of the last (current) server tick.
52		100
53	=item $cf::TICK	101	=item $cf::TICK
54		102
55	The interval between server ticks, in seconds.	103	The interval between server ticks, in seconds.
56		104
…		…
64	=cut	112	=cut
65		113
66	BEGIN {	114	BEGIN {
67	*CORE::GLOBAL::warn = sub {	115	*CORE::GLOBAL::warn = sub {
68	my $msg = join "", @_;	116	my $msg = join "", @_;
		117	utf8::encode $msg;
		118
69	$msg .= "\n"	119	$msg .= "\n"
70	unless $msg =~ /\n$/;	120	unless $msg =~ /\n$/;
71		121
72	print STDERR "cfperl: $msg";
73	LOG llevError, "cfperl: $msg";	122	LOG llevError, "cfperl: $msg";
74	};	123	};
75	}	124	}
76		125
		126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
77	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
78		132
79	# we bless all objects into (empty) derived classes to force a method lookup	133	# we bless all objects into (empty) derived classes to force a method lookup
80	# within the Safe compartment.	134	# within the Safe compartment.
81	for my $pkg (qw(	135	for my $pkg (qw(
		136	cf::global cf::attachable
82	cf::object cf::object::player	137	cf::object cf::object::player
83	cf::client_socket cf::player	138	cf::client cf::player
84	cf::arch cf::living	139	cf::arch cf::living
85	cf::map cf::party cf::region	140	cf::map cf::party cf::region
86	)) {	141	)) {
87	no strict 'refs';	142	no strict 'refs';
88	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
…		…
124	sub to_json($) {	179	sub to_json($) {
125	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
126	JSON::Syck::Dump $_[0]	181	JSON::Syck::Dump $_[0]
127	}	182	}
128		183
		184	=item cf::lock_wait $string
		185
		186	Wait until the given lock is available. See cf::lock_acquire.
		187
		188	=item my $lock = cf::lock_acquire $string
		189
		190	Wait until the given lock is available and then acquires it and returns
		191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		192	for example when the coroutine gets canceled), the lock is automatically
		193	returned.
		194
		195	Lock names should begin with a unique identifier (for example, cf::map::find
		196	uses map_find and cf::map::load uses map_load).
		197
		198	=cut
		199
		200	our %LOCK;
		201
		202	sub lock_wait($) {
		203	my ($key) = @_;
		204
		205	# wait for lock, if any
		206	while ($LOCK{$key}) {
		207	push @{ $LOCK{$key} }, $Coro::current;
		208	Coro::schedule;
		209	}
		210	}
		211
		212	sub lock_acquire($) {
		213	my ($key) = @_;
		214
		215	# wait, to be sure we are not locked
		216	lock_wait $key;
		217
		218	$LOCK{$key} = [];
		219
		220	Coro::guard {
		221	# wake up all waiters, to be on the safe side
		222	$_->ready for @{ delete $LOCK{$key} };
		223	}
		224	}
		225
		226	sub freeze_mainloop {
		227	return unless $TICK_WATCHER->is_active;
		228
		229	my $guard = Coro::guard { $TICK_WATCHER->start };
		230	$TICK_WATCHER->stop;
		231	$guard
		232	}
		233
		234	=item cf::sync_job { BLOCK }
		235
		236	The design of crossfire+ requires that the main coro ($Coro::main) is
		237	always able to handle events or runnable, as crossfire+ is only partly
		238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		239
		240	If it must be done, put the blocking parts into C<sync_job>. This will run
		241	the given BLOCK in another coroutine while waiting for the result. The
		242	server will be frozen during this time, so the block should either finish
		243	fast or be very important.
		244
		245	=cut
		246
		247	sub sync_job(&) {
		248	my ($job) = @_;
		249
		250	if ($Coro::current == $Coro::main) {
		251	# this is the main coro, too bad, we have to block
		252	# till the operation succeeds, freezing the server :/
		253
		254	# TODO: use suspend/resume instead
		255	# (but this is cancel-safe)
		256	my $freeze_guard = freeze_mainloop;
		257
		258	my $busy = 1;
		259	my @res;
		260
		261	(Coro::async_pool {
		262	@res = eval { $job->() };
		263	warn $@ if $@;
		264	undef $busy;
		265	})->prio (Coro::PRIO_MAX);
		266
		267	while ($busy) {
		268	Coro::cede_notself;
		269	Event::one_event unless Coro::nready;
		270	}
		271
		272	wantarray ? @res : $res[0]
		273	} else {
		274	# we are in another coroutine, how wonderful, everything just works
		275
		276	$job->()
		277	}
		278	}
		279
		280	=item $coro = cf::coro { BLOCK }
		281
		282	Creates (and readies) and returns a new coro. This coro is automcatially
		283	being canceled when the extension calling this is being unloaded.
		284
		285	=cut
		286
		287	sub coro(&) {
		288	my $cb = shift;
		289
		290	my $coro = &Coro::async_pool ($cb);
		291
		292	$coro->on_destroy (sub {
		293	delete $EXT_CORO{$coro+0};
		294	});
		295	$EXT_CORO{$coro+0} = $coro;
		296
		297	$coro
		298	}
		299
		300	sub write_runtime {
		301	my $runtime = cf::localdir . "/runtime";
		302
		303	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		304	or return;
		305
		306	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		307	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		308	and return;
		309
		310	aio_fsync $fh
		311	and return;
		312
		313	close $fh
		314	or return;
		315
		316	aio_rename "$runtime~", $runtime
		317	and return;
		318
		319	1
		320	}
		321
129	=back	322	=back
130		323
131	=cut	324	=cut
132		325
133	#############################################################################	326	#############################################################################
134		327
135	=head2 EVENTS AND OBJECT ATTACHMENTS	328	package cf::path;
		329
		330	sub new {
		331	my ($class, $path, $base) = @_;
		332
		333	$path = $path->as_string if ref $path;
		334
		335	my $self = bless { }, $class;
		336
		337	# {... are special paths that are not touched
		338	# ?xxx/... are special absolute paths
		339	# ?random/... random maps
		340	# /! non-realised random map exit
		341	# /... normal maps
		342	# ~/... per-player maps without a specific player (DO NOT USE)
		343	# ~user/... per-player map of a specific user
		344
		345	if ($path =~ /^{/) {
		346	# fine as it is
		347	} elsif ($path =~ s{^\?random/}{}) {
		348	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		349	$self->{random} = cf::from_json $data;
		350	} else {
		351	if ($path =~ s{^~([^/]+)?}{}) {
		352	$self->{user_rel} = 1;
		353
		354	if (defined $1) {
		355	$self->{user} = $1;
		356	} elsif ($base =~ m{^~([^/]+)/}) {
		357	$self->{user} = $1;
		358	} else {
		359	warn "cannot resolve user-relative path without user <$path,$base>\n";
		360	}
		361	} elsif ($path =~ /^\//) {
		362	# already absolute
		363	} else {
		364	$base =~ s{[^/]+/?$}{};
		365	return $class->new ("$base/$path");
		366	}
		367
		368	for ($path) {
		369	redo if s{/\.?/}{/};
		370	redo if s{/[^/]+/\.\./}{/};
		371	}
		372	}
		373
		374	$self->{path} = $path;
		375
		376	$self
		377	}
		378
		379	# the name / primary key / in-game path
		380	sub as_string {
		381	my ($self) = @_;
		382
		383	$self->{user_rel} ? "~$self->{user}$self->{path}"
		384	: $self->{random} ? "?random/$self->{path}"
		385	: $self->{path}
		386	}
		387
		388	# the displayed name, this is a one way mapping
		389	sub visible_name {
		390	my ($self) = @_;
		391
		392	# if (my $rmp = $self->{random}) {
		393	# # todo: be more intelligent about this
		394	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		395	# } else {
		396	$self->as_string
		397	# }
		398	}
		399
		400	# escape the /'s in the path
		401	sub _escaped_path {
		402	# ∕ is U+2215
		403	(my $path = $_[0]{path}) =~ s/\//∕/g;
		404	$path
		405	}
		406
		407	# the original (read-only) location
		408	sub load_path {
		409	my ($self) = @_;
		410
		411	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		412	}
		413
		414	# the temporary/swap location
		415	sub save_path {
		416	my ($self) = @_;
		417
		418	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		419	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		420	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		421	}
		422
		423	# the unique path, might be eq to save_path
		424	sub uniq_path {
		425	my ($self) = @_;
		426
		427	$self->{user_rel} || $self->{random}
		428	? undef
		429	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		430	}
		431
		432	# return random map parameters, or undef
		433	sub random_map_params {
		434	my ($self) = @_;
		435
		436	$self->{random}
		437	}
		438
		439	# this is somewhat ugly, but style maps do need special treatment
		440	sub is_style_map {
		441	$_[0]{path} =~ m{^/styles/}
		442	}
		443
		444	package cf;
		445
		446	#############################################################################
		447
		448	=head2 ATTACHABLE OBJECTS
		449
		450	Many objects in crossfire are so-called attachable objects. That means you can
		451	attach callbacks/event handlers (a collection of which is called an "attachment")
		452	to it. All such attachable objects support the following methods.
		453
		454	In the following description, CLASS can be any of C<global>, C<object>
		455	C<player>, C<client> or C<map> (i.e. the attachable objects in
		456	crossfire+).
136		457
137	=over 4	458	=over 4
138		459
139	=item $object->attach ($attachment, key => $value...)
140
141	=item $object->detach ($attachment)
142
143	Attach/detach a pre-registered attachment to an object.
144
145	=item $player->attach ($attachment, key => $value...)
146
147	=item $player->detach ($attachment)
148
149	Attach/detach a pre-registered attachment to a player.
150
151	=item $map->attach ($attachment, key => $value...)	460	=item $attachable->attach ($attachment, key => $value...)
152		461
153	=item $map->detach ($attachment)	462	=item $attachable->detach ($attachment)
154		463
155	Attach/detach a pre-registered attachment to a map.	464	Attach/detach a pre-registered attachment to a specific object and give it
		465	the specified key/value pairs as arguments.
156		466
157	=item $bool = $object->attached ($name)	467	Example, attach a minesweeper attachment to the given object, making it a
		468	10x10 minesweeper game:
158		469
159	=item $bool = $player->attached ($name)	470	$obj->attach (minesweeper => width => 10, height => 10);
160		471
161	=item $bool = $map->attached ($name)	472	=item $bool = $attachable->attached ($name)
162		473
163	Checks wether the named attachment is currently attached to the object.	474	Checks wether the named attachment is currently attached to the object.
164		475
165	=item cf::attach_global ...	476	=item cf::CLASS->attach ...
166		477
167	Attach handlers for global events.	478	=item cf::CLASS->detach ...
168		479
169	This and all following C<attach_*>-functions expect any number of the	480	Define an anonymous attachment and attach it to all objects of the given
170	following handler/hook descriptions:	481	CLASS. See the next function for an explanation of its arguments.
		482
		483	You can attach to global events by using the C<cf::global> class.
		484
		485	Example, log all player logins:
		486
		487	cf::player->attach (
		488	on_login => sub {
		489	my ($pl) = @_;
		490	...
		491	},
		492	);
		493
		494	Example, attach to the jeweler skill:
		495
		496	cf::object->attach (
		497	type => cf::SKILL,
		498	subtype => cf::SK_JEWELER,
		499	on_use_skill => sub {
		500	my ($sk, $ob, $part, $dir, $msg) = @_;
		501	...
		502	},
		503	);
		504
		505	=item cf::CLASS::attachment $name, ...
		506
		507	Register an attachment by C<$name> through which attachable objects of the
		508	given CLASS can refer to this attachment.
		509
		510	Some classes such as crossfire maps and objects can specify attachments
		511	that are attached at load/instantiate time, thus the need for a name.
		512
		513	These calls expect any number of the following handler/hook descriptions:
171		514
172	=over 4	515	=over 4
173		516
174	=item prio => $number	517	=item prio => $number
175		518
…		…
177	by another C<prio> setting). Lower priority handlers get executed	520	by another C<prio> setting). Lower priority handlers get executed
178	earlier. The default priority is C<0>, and many built-in handlers are	521	earlier. The default priority is C<0>, and many built-in handlers are
179	registered at priority C<-1000>, so lower priorities should not be used	522	registered at priority C<-1000>, so lower priorities should not be used
180	unless you know what you are doing.	523	unless you know what you are doing.
181		524
		525	=item type => $type
		526
		527	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		528	given type of objects only (the additional parameter C<subtype> can be
		529	used to further limit to the given subtype).
		530
182	=item on_I<event> => \&cb	531	=item on_I<event> => \&cb
183		532
184	Call the given code reference whenever the named event happens (event is	533	Call the given code reference whenever the named event happens (event is
185	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	534	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
186	handlers are recognised generally depends on the type of object these	535	handlers are recognised generally depends on the type of object these
…		…
195	package and register them. Only handlers for eevents supported by the	544	package and register them. Only handlers for eevents supported by the
196	object/class are recognised.	545	object/class are recognised.
197		546
198	=back	547	=back
199		548
200	=item cf::attach_to_type $object_type, $subtype, ...	549	Example, define an attachment called "sockpuppet" that calls the given
		550	event handler when a monster attacks:
201		551
202	Attach handlers for a specific object type (e.g. TRANSPORT) and	552	cf::object::attachment sockpuppet =>
203	subtype. If C<$subtype> is zero or undef, matches all objects of the given	553	on_skill_attack => sub {
204	type.	554	my ($self, $victim) = @_;
205		555	...
206	=item cf::attach_to_objects ...
207
208	Attach handlers to all objects. Do not use this except for debugging or
209	very rare events, as handlers are (obviously) called for I<all> objects in
210	the game.
211
212	=item cf::attach_to_players ...
213
214	Attach handlers to all players.
215
216	=item cf::attach_to_maps ...
217
218	Attach handlers to all maps.
219
220	=item cf:register_attachment $name, ...
221
222	Register an attachment by name through which objects can refer to this
223	attachment.
224
225	=item cf:register_player_attachment $name, ...
226
227	Register an attachment by name through which players can refer to this
228	attachment.
229
230	=item cf:register_map_attachment $name, ...
231
232	Register an attachment by name through which maps can refer to this
233	attachment.
234
235	=cut
236
237	# the following variables are defined in .xs and must not be re-created
238	our @CB_GLOBAL = (); # registry for all global events
239	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
240	our @CB_PLAYER = ();
241	our @CB_TYPE = (); # registry for type (cf-object class) based events
242	our @CB_MAP = ();
243
244	my %attachment;
245
246	sub _attach_cb($\%$$$) {
247	my ($registry, $undo, $event, $prio, $cb) = @_;
248
249	use sort 'stable';
250
251	$cb = [$prio, $cb];
252
253	@{$registry->[$event]} = sort
254	{ $a->[0] cmp $b->[0] }
255	@{$registry->[$event] || []}, $cb;
256
257	push @{$undo->{cb}}, [$event, $cb];
258	}
259
260	# attach handles attaching event callbacks
261	# the only thing the caller has to do is pass the correct
262	# registry (== where the callback attaches to).
263	sub _attach(\@$@) {
264	my ($registry, $klass, @arg) = @_;
265
266	my $prio = 0;
267
268	my %undo = (
269	registry => $registry,
270	cb => [],
271	);
272
273	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
274
275	while (@arg) {
276	my $type = shift @arg;
277
278	if ($type eq "prio") {
279	$prio = shift @arg;
280
281	} elsif ($type eq "package") {
282	my $pkg = shift @arg;
283
284	while (my ($name, $id) = each %cb_id) {
285	if (my $cb = $pkg->can ($name)) {
286	_attach_cb $registry, %undo, $id, $prio, $cb;
287	}
288	}	556	}
289
290	} elsif (exists $cb_id{$type}) {
291	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
292
293	} elsif (ref $type) {
294	warn "attaching objects not supported, ignoring.\n";
295
296	} else {
297	shift @arg;
298	warn "attach argument '$type' not supported, ignoring.\n";
299	}
300	}
301
302	\%undo
303	}
304
305	sub _attach_attachment {
306	my ($obj, $name, %arg) = @_;
307
308	return if exists $obj->{_attachment}{$name};
309
310	my $res;
311
312	if (my $attach = $attachment{$name}) {
313	my $registry = $obj->registry;
314
315	for (@$attach) {
316	my ($klass, @attach) = @$_;
317	$res = _attach @$registry, $klass, @attach;
318	}
319
320	$obj->{$name} = \%arg;
321	} else {
322	warn "object uses attachment '$name' that is not available, postponing.\n";
323	}
324
325	$obj->{_attachment}{$name} = undef;
326
327	$res->{attachment} = $name;
328	$res
329	}
330
331	*cf::object::attach =
332	*cf::player::attach =
333	*cf::map::attach = sub {
334	my ($obj, $name, %arg) = @_;
335
336	_attach_attachment $obj, $name, %arg;
337	};
338
339	# all those should be optimised
340	*cf::object::detach =
341	*cf::player::detach =
342	*cf::map::detach = sub {
343	my ($obj, $name) = @_;
344
345	delete $obj->{_attachment}{$name};
346	reattach ($obj);
347	};
348
349	*cf::object::attached =
350	*cf::player::attached =
351	*cf::map::attached = sub {
352	my ($obj, $name) = @_;
353
354	exists $obj->{_attachment}{$name}
355	};
356
357	sub attach_global {
358	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
359	}
360
361	sub attach_to_type {
362	my $type = shift;
363	my $subtype = shift;
364
365	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
366	}
367
368	sub attach_to_objects {
369	_attach @CB_OBJECT, KLASS_OBJECT, @_
370	}
371
372	sub attach_to_players {
373	_attach @CB_PLAYER, KLASS_PLAYER, @_
374	}
375
376	sub attach_to_maps {
377	_attach @CB_MAP, KLASS_MAP, @_
378	}
379
380	sub register_attachment {
381	my $name = shift;
382
383	$attachment{$name} = [[KLASS_OBJECT, @_]];
384	}
385
386	sub register_player_attachment {
387	my $name = shift;
388
389	$attachment{$name} = [[KLASS_PLAYER, @_]];
390	}
391
392	sub register_map_attachment {
393	my $name = shift;
394
395	$attachment{$name} = [[KLASS_MAP, @_]];
396	}
397
398	our $override;
399	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
400
401	sub override {
402	$override = 1;
403	@invoke_results = ();
404	}
405
406	sub do_invoke {
407	my $event = shift;
408	my $callbacks = shift;
409
410	@invoke_results = ();
411
412	local $override;
413
414	for (@$callbacks) {
415	eval { &{$_->[1]} };
416
417	if ($@) {
418	warn "$@";
419	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
420	override;
421	}
422
423	return 1 if $override;
424	}
425
426	0	557	}
427	}
428		558
429	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	559	=item $attachable->valid
430
431	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
432
433	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
434
435	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
436
437	Generate a global/object/player/map-specific event with the given arguments.
438
439	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
440	removed in future versions), and there is no public API to access override
441	results (if you must, access C<@cf::invoke_results> directly).
442
443	=back
444
445	=cut
446
447	#############################################################################
448
449	=head2 METHODS VALID FOR ALL CORE OBJECTS
450
451	=over 4
452
453	=item $object->valid, $player->valid, $map->valid
454		560
455	Just because you have a perl object does not mean that the corresponding	561	Just because you have a perl object does not mean that the corresponding
456	C-level object still exists. If you try to access an object that has no	562	C-level object still exists. If you try to access an object that has no
457	valid C counterpart anymore you get an exception at runtime. This method	563	valid C counterpart anymore you get an exception at runtime. This method
458	can be used to test for existence of the C object part without causing an	564	can be used to test for existence of the C object part without causing an
459	exception.	565	exception.
460		566
		567	=cut
		568
		569	# the following variables are defined in .xs and must not be re-created
		570	our @CB_GLOBAL = (); # registry for all global events
		571	our @CB_ATTACHABLE = (); # registry for all attachables
		572	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		573	our @CB_PLAYER = ();
		574	our @CB_CLIENT = ();
		575	our @CB_TYPE = (); # registry for type (cf-object class) based events
		576	our @CB_MAP = ();
		577
		578	my %attachment;
		579
		580	sub _attach_cb($$$$) {
		581	my ($registry, $event, $prio, $cb) = @_;
		582
		583	use sort 'stable';
		584
		585	$cb = [$prio, $cb];
		586
		587	@{$registry->[$event]} = sort
		588	{ $a->[0] cmp $b->[0] }
		589	@{$registry->[$event] || []}, $cb;
		590	}
		591
		592	# hack
		593	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		594
		595	# attach handles attaching event callbacks
		596	# the only thing the caller has to do is pass the correct
		597	# registry (== where the callback attaches to).
		598	sub _attach {
		599	my ($registry, $klass, @arg) = @_;
		600
		601	my $object_type;
		602	my $prio = 0;
		603	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		604
		605	#TODO: get rid of this hack
		606	if ($attachable_klass{$klass}) {
		607	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		608	}
		609
		610	while (@arg) {
		611	my $type = shift @arg;
		612
		613	if ($type eq "prio") {
		614	$prio = shift @arg;
		615
		616	} elsif ($type eq "type") {
		617	$object_type = shift @arg;
		618	$registry = $CB_TYPE[$object_type] ||= [];
		619
		620	} elsif ($type eq "subtype") {
		621	defined $object_type or Carp::croak "subtype specified without type";
		622	my $object_subtype = shift @arg;
		623	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		624
		625	} elsif ($type eq "package") {
		626	my $pkg = shift @arg;
		627
		628	while (my ($name, $id) = each %cb_id) {
		629	if (my $cb = $pkg->can ($name)) {
		630	_attach_cb $registry, $id, $prio, $cb;
		631	}
		632	}
		633
		634	} elsif (exists $cb_id{$type}) {
		635	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		636
		637	} elsif (ref $type) {
		638	warn "attaching objects not supported, ignoring.\n";
		639
		640	} else {
		641	shift @arg;
		642	warn "attach argument '$type' not supported, ignoring.\n";
		643	}
		644	}
		645	}
		646
		647	sub _object_attach {
		648	my ($obj, $name, %arg) = @_;
		649
		650	return if exists $obj->{_attachment}{$name};
		651
		652	if (my $attach = $attachment{$name}) {
		653	my $registry = $obj->registry;
		654
		655	for (@$attach) {
		656	my ($klass, @attach) = @$_;
		657	_attach $registry, $klass, @attach;
		658	}
		659
		660	$obj->{$name} = \%arg;
		661	} else {
		662	warn "object uses attachment '$name' that is not available, postponing.\n";
		663	}
		664
		665	$obj->{_attachment}{$name} = undef;
		666	}
		667
		668	sub cf::attachable::attach {
		669	if (ref $_[0]) {
		670	_object_attach @_;
		671	} else {
		672	_attach shift->_attach_registry, @_;
		673	}
		674	};
		675
		676	# all those should be optimised
		677	sub cf::attachable::detach {
		678	my ($obj, $name) = @_;
		679
		680	if (ref $obj) {
		681	delete $obj->{_attachment}{$name};
		682	reattach ($obj);
		683	} else {
		684	Carp::croak "cannot, currently, detach class attachments";
		685	}
		686	};
		687
		688	sub cf::attachable::attached {
		689	my ($obj, $name) = @_;
		690
		691	exists $obj->{_attachment}{$name}
		692	}
		693
		694	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		695	eval "#line " . __LINE__ . " 'cf.pm'
		696	sub cf::\L$klass\E::_attach_registry {
		697	(\\\@CB_$klass, KLASS_$klass)
		698	}
		699
		700	sub cf::\L$klass\E::attachment {
		701	my \$name = shift;
		702
		703	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		704	}
		705	";
		706	die if $@;
		707	}
		708
		709	our $override;
		710	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		711
		712	sub override {
		713	$override = 1;
		714	@invoke_results = ();
		715	}
		716
		717	sub do_invoke {
		718	my $event = shift;
		719	my $callbacks = shift;
		720
		721	@invoke_results = ();
		722
		723	local $override;
		724
		725	for (@$callbacks) {
		726	eval { &{$_->[1]} };
		727
		728	if ($@) {
		729	warn "$@";
		730	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		731	override;
		732	}
		733
		734	return 1 if $override;
		735	}
		736
		737	0
		738	}
		739
		740	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		741
		742	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		743
		744	Generate an object-specific event with the given arguments.
		745
		746	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		747	removed in future versions), and there is no public API to access override
		748	results (if you must, access C<@cf::invoke_results> directly).
		749
461	=back	750	=back
462		751
463	=cut	752	=cut
464
465	*cf::object::valid =
466	*cf::player::valid =
467	*cf::map::valid = \&cf::_valid;
468		753
469	#############################################################################	754	#############################################################################
470	# object support	755	# object support
471		756
472	sub instantiate {
473	my ($obj, $data) = @_;
474
475	$data = from_json $data;
476
477	for (@$data) {
478	my ($name, $args) = @$_;
479
480	$obj->attach ($name, %{$args || {} });
481	}
482	}
483
484	# basically do the same as instantiate, without calling instantiate
485	sub reattach {	757	sub reattach {
		758	# basically do the same as instantiate, without calling instantiate
486	my ($obj) = @_;	759	my ($obj) = @_;
		760
487	my $registry = $obj->registry;	761	my $registry = $obj->registry;
488		762
489	@$registry = ();	763	@$registry = ();
490		764
491	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	765	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
492		766
493	for my $name (keys %{ $obj->{_attachment} || {} }) {	767	for my $name (keys %{ $obj->{_attachment} || {} }) {
494	if (my $attach = $attachment{$name}) {	768	if (my $attach = $attachment{$name}) {
495	for (@$attach) {	769	for (@$attach) {
496	my ($klass, @attach) = @$_;	770	my ($klass, @attach) = @$_;
497	_attach @$registry, $klass, @attach;	771	_attach $registry, $klass, @attach;
498	}	772	}
499	} else {	773	} else {
500	warn "object uses attachment '$name' that is not available, postponing.\n";	774	warn "object uses attachment '$name' that is not available, postponing.\n";
501	}	775	}
502	}	776	}
503	}	777	}
504		778
505	sub object_freezer_save {	779	cf::attachable->attach (
506	my ($filename, $rdata, $objs) = @_;
507
508	if (length $$rdata) {
509	warn sprintf "saving %s (%d,%d)\n",
510	$filename, length $$rdata, scalar @$objs;
511
512	if (open my $fh, ">:raw", "$filename~") {
513	chmod SAVE_MODE, $fh;
514	syswrite $fh, $$rdata;
515	close $fh;
516
517	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
518	chmod SAVE_MODE, $fh;
519	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
520	close $fh;
521	rename "$filename.pst~", "$filename.pst";
522	} else {
523	unlink "$filename.pst";
524	}
525
526	rename "$filename~", $filename;
527	} else {
528	warn "FATAL: $filename~: $!\n";
529	}
530	} else {
531	unlink $filename;
532	unlink "$filename.pst";
533	}
534	}
535
536	sub object_freezer_as_string {
537	my ($rdata, $objs) = @_;
538
539	use Data::Dumper;
540
541	$$rdata . Dumper $objs
542	}
543
544	sub object_thawer_load {
545	my ($filename) = @_;
546
547	local $/;
548
549	my $av;
550
551	#TODO: use sysread etc.
552	if (open my $data, "<:raw:perlio", $filename) {
553	$data = <$data>;
554	if (open my $pst, "<:raw:perlio", "$filename.pst") {
555	$av = eval { (Storable::thaw <$pst>)->{objs} };
556	}
557	return ($data, $av);
558	}
559
560	()
561	}
562
563	attach_to_objects
564	prio => -1000000,	780	prio => -1000000,
		781	on_instantiate => sub {
		782	my ($obj, $data) = @_;
		783
		784	$data = from_json $data;
		785
		786	for (@$data) {
		787	my ($name, $args) = @$_;
		788
		789	$obj->attach ($name, %{$args || {} });
		790	}
		791	},
		792	on_reattach => \&reattach,
565	on_clone => sub {	793	on_clone => sub {
566	my ($src, $dst) = @_;	794	my ($src, $dst) = @_;
567		795
568	@{$dst->registry} = @{$src->registry};	796	@{$dst->registry} = @{$src->registry};
569		797
570	%$dst = %$src;	798	%$dst = %$src;
571		799
572	%{$dst->{_attachment}} = %{$src->{_attachment}}	800	%{$dst->{_attachment}} = %{$src->{_attachment}}
573	if exists $src->{_attachment};	801	if exists $src->{_attachment};
574	},	802	},
575	;	803	);
		804
		805	sub object_freezer_save {
		806	my ($filename, $rdata, $objs) = @_;
		807
		808	sync_job {
		809	if (length $$rdata) {
		810	warn sprintf "saving %s (%d,%d)\n",
		811	$filename, length $$rdata, scalar @$objs;
		812
		813	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		814	chmod SAVE_MODE, $fh;
		815	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		816	aio_fsync $fh;
		817	close $fh;
		818
		819	if (@$objs) {
		820	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		821	chmod SAVE_MODE, $fh;
		822	my $data = Storable::nfreeze { version => 1, objs => $objs };
		823	aio_write $fh, 0, (length $data), $data, 0;
		824	aio_fsync $fh;
		825	close $fh;
		826	aio_rename "$filename.pst~", "$filename.pst";
		827	}
		828	} else {
		829	aio_unlink "$filename.pst";
		830	}
		831
		832	aio_rename "$filename~", $filename;
		833	} else {
		834	warn "FATAL: $filename~: $!\n";
		835	}
		836	} else {
		837	aio_unlink $filename;
		838	aio_unlink "$filename.pst";
		839	}
		840	}
		841	}
		842
		843	sub object_freezer_as_string {
		844	my ($rdata, $objs) = @_;
		845
		846	use Data::Dumper;
		847
		848	$$rdata . Dumper $objs
		849	}
		850
		851	sub object_thawer_load {
		852	my ($filename) = @_;
		853
		854	my ($data, $av);
		855
		856	(aio_load $filename, $data) >= 0
		857	or return;
		858
		859	unless (aio_stat "$filename.pst") {
		860	(aio_load "$filename.pst", $av) >= 0
		861	or return;
		862	$av = eval { (Storable::thaw $av)->{objs} };
		863	}
		864
		865	warn sprintf "loading %s (%d)\n",
		866	$filename, length $data, scalar @{$av || []};#d#
		867	return ($data, $av);
		868	}
576		869
577	#############################################################################	870	#############################################################################
578	# command handling &c	871	# command handling &c
579		872
580	=item cf::register_command $name => \&callback($ob,$args);	873	=item cf::register_command $name => \&callback($ob,$args);
…		…
609	#warn "registering extcmd '$name' to '$caller'";	902	#warn "registering extcmd '$name' to '$caller'";
610		903
611	$EXTCMD{$name} = [$cb, $caller];	904	$EXTCMD{$name} = [$cb, $caller];
612	}	905	}
613		906
614	attach_to_players	907	cf::player->attach (
615	on_command => sub {	908	on_command => sub {
616	my ($pl, $name, $params) = @_;	909	my ($pl, $name, $params) = @_;
617		910
618	my $cb = $COMMAND{$name}	911	my $cb = $COMMAND{$name}
619	or return;	912	or return;
…		…
639	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	932	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
640	}	933	}
641		934
642	cf::override;	935	cf::override;
643	},	936	},
644	;	937	);
645		938
646	sub register {	939	sub register {
647	my ($base, $pkg) = @_;	940	my ($base, $pkg) = @_;
648		941
649	#TODO	942	#TODO
…		…
718		1011
719	Symbol::delete_package $pkg;	1012	Symbol::delete_package $pkg;
720	}	1013	}
721		1014
722	sub load_extensions {	1015	sub load_extensions {
723	my $LIBDIR = maps_directory "perl";
724
725	for my $ext (<$LIBDIR/*.ext>) {	1016	for my $ext (<$LIBDIR/*.ext>) {
726	next unless -r $ext;	1017	next unless -r $ext;
727	eval {	1018	eval {
728	load_extension $ext;	1019	load_extension $ext;
729	1	1020	1
…		…
741	defined $path or return;	1032	defined $path or return;
742		1033
743	unlink "$path.pst";	1034	unlink "$path.pst";
744	};	1035	};
745		1036
746	attach_to_maps prio => -10000, package => cf::mapsupport::;	1037	cf::map->attach (prio => -10000, package => cf::mapsupport::);
747		1038
748	#############################################################################	1039	#############################################################################
749	# load/save perl data associated with player->ob objects	1040	# load/save perl data associated with player->ob objects
750		1041
751	sub all_objects(@) {	1042	sub all_objects(@) {
752	@_, map all_objects ($_->inv), @_	1043	@_, map all_objects ($_->inv), @_
753	}	1044	}
754		1045
755	# TODO: compatibility cruft, remove when no longer needed	1046	# TODO: compatibility cruft, remove when no longer needed
756	attach_to_players	1047	cf::player->attach (
757	on_load => sub {	1048	on_load => sub {
758	my ($pl, $path) = @_;	1049	my ($pl, $path) = @_;
759		1050
760	for my $o (all_objects $pl->ob) {	1051	for my $o (all_objects $pl->ob) {
761	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1052	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
763		1054
764	%$o = %{ Storable::thaw pack "H*", $value };	1055	%$o = %{ Storable::thaw pack "H*", $value };
765	}	1056	}
766	}	1057	}
767	},	1058	},
768	;	1059	);
769		1060
770	#############################################################################	1061	#############################################################################
771		1062
772	=head2 CORE EXTENSIONS	1063	=head2 CORE EXTENSIONS
773		1064
774	Functions and methods that extend core crossfire objects.	1065	Functions and methods that extend core crossfire objects.
		1066
		1067	=head3 cf::player
775		1068
776	=over 4	1069	=over 4
777		1070
778	=item cf::player::exists $login	1071	=item cf::player::exists $login
779		1072
…		…
784	sub cf::player::exists($) {	1077	sub cf::player::exists($) {
785	cf::player::find $_[0]	1078	cf::player::find $_[0]
786	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1079	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
787	}	1080	}
788		1081
		1082	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1083
		1084	Sends an ext reply to the player.
		1085
		1086	=cut
		1087
		1088	sub cf::player::ext_reply($$$%) {
		1089	my ($self, $id, %msg) = @_;
		1090
		1091	$msg{msgid} = $id;
		1092
		1093	$self->send ("ext " . to_json \%msg);
		1094	}
		1095
		1096	=back
		1097
		1098
		1099	=head3 cf::map
		1100
		1101	=over 4
		1102
		1103	=cut
		1104
		1105	package cf::map;
		1106
		1107	use Fcntl;
		1108	use Coro::AIO;
		1109
		1110	our $MAX_RESET = 3600;
		1111	our $DEFAULT_RESET = 3000;
		1112
		1113	sub generate_random_map {
		1114	my ($path, $rmp) = @_;
		1115
		1116	# mit "rum" bekleckern, nicht
		1117	cf::map::_create_random_map
		1118	$path,
		1119	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1120	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1121	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1122	$rmp->{exit_on_final_map},
		1123	$rmp->{xsize}, $rmp->{ysize},
		1124	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1125	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1126	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1127	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1128	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1129	(cf::region::find $rmp->{region})
		1130	}
		1131
		1132	# and all this just because we cannot iterate over
		1133	# all maps in C++...
		1134	sub change_all_map_light {
		1135	my ($change) = @_;
		1136
		1137	$_->change_map_light ($change)
		1138	for grep $_->outdoor, values %cf::MAP;
		1139	}
		1140
		1141	sub try_load_header($) {
		1142	my ($path) = @_;
		1143
		1144	utf8::encode $path;
		1145	aio_open $path, O_RDONLY, 0
		1146	or return;
		1147
		1148	my $map = cf::map::new
		1149	or return;
		1150
		1151	# for better error messages only, will be overwritten
		1152	$map->path ($path);
		1153
		1154	$map->load_header ($path)
		1155	or return;
		1156
		1157	$map->{load_path} = $path;
		1158
		1159	$map
		1160	}
		1161
		1162	sub find;
		1163	sub find {
		1164	my ($path, $origin) = @_;
		1165
		1166	#warn "find<$path,$origin>\n";#d#
		1167
		1168	$path = new cf::path $path, $origin && $origin->path;
		1169	my $key = $path->as_string;
		1170
		1171	cf::lock_wait "map_find:$key";
		1172
		1173	$cf::MAP{$key} || do {
		1174	my $guard = cf::lock_acquire "map_find:$key";
		1175
		1176	# do it the slow way
		1177	my $map = try_load_header $path->save_path;
		1178
		1179	Coro::cede;
		1180
		1181	if ($map) {
		1182	$map->last_access ((delete $map->{last_access})
		1183	|| $cf::RUNTIME); #d#
		1184	# safety
		1185	$map->{instantiate_time} = $cf::RUNTIME
		1186	if $map->{instantiate_time} > $cf::RUNTIME;
		1187	} else {
		1188	if (my $rmp = $path->random_map_params) {
		1189	$map = generate_random_map $key, $rmp;
		1190	} else {
		1191	$map = try_load_header $path->load_path;
		1192	}
		1193
		1194	$map or return;
		1195
		1196	$map->{load_original} = 1;
		1197	$map->{instantiate_time} = $cf::RUNTIME;
		1198	$map->last_access ($cf::RUNTIME);
		1199	$map->instantiate;
		1200
		1201	# per-player maps become, after loading, normal maps
		1202	$map->per_player (0) if $path->{user_rel};
		1203	}
		1204
		1205	$map->path ($key);
		1206	$map->{path} = $path;
		1207	$map->{last_save} = $cf::RUNTIME;
		1208
		1209	Coro::cede;
		1210
		1211	if ($map->should_reset) {
		1212	$map->reset;
		1213	undef $guard;
		1214	$map = find $path
		1215	or return;
		1216	}
		1217
		1218	$cf::MAP{$key} = $map
		1219	}
		1220	}
		1221
		1222	sub load {
		1223	my ($self) = @_;
		1224
		1225	my $path = $self->{path};
		1226	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1227
		1228	return if $self->in_memory != cf::MAP_SWAPPED;
		1229
		1230	$self->in_memory (cf::MAP_LOADING);
		1231
		1232	$self->alloc;
		1233	$self->load_objects ($self->{load_path}, 1)
		1234	or return;
		1235
		1236	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1237	if delete $self->{load_original};
		1238
		1239	if (my $uniq = $path->uniq_path) {
		1240	utf8::encode $uniq;
		1241	if (aio_open $uniq, O_RDONLY, 0) {
		1242	$self->clear_unique_items;
		1243	$self->load_objects ($uniq, 0);
		1244	}
		1245	}
		1246
		1247	Coro::cede;
		1248
		1249	# now do the right thing for maps
		1250	$self->link_multipart_objects;
		1251
		1252	if ($self->{path}->is_style_map) {
		1253	$self->{deny_save} = 1;
		1254	$self->{deny_reset} = 1;
		1255	} else {
		1256	$self->fix_auto_apply;
		1257	$self->decay_objects;
		1258	$self->update_buttons;
		1259	$self->set_darkness_map;
		1260	$self->difficulty ($self->estimate_difficulty)
		1261	unless $self->difficulty;
		1262	$self->activate;
		1263	}
		1264
		1265	Coro::cede;
		1266
		1267	$self->in_memory (cf::MAP_IN_MEMORY);
		1268	}
		1269
		1270	sub find_sync {
		1271	my ($path, $origin) = @_;
		1272
		1273	cf::sync_job { cf::map::find $path, $origin }
		1274	}
		1275
		1276	sub do_load_sync {
		1277	my ($map) = @_;
		1278
		1279	cf::sync_job { $map->load };
		1280	}
		1281
		1282	sub save {
		1283	my ($self) = @_;
		1284
		1285	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1286
		1287	$self->{last_save} = $cf::RUNTIME;
		1288
		1289	return unless $self->dirty;
		1290
		1291	my $save = $self->{path}->save_path; utf8::encode $save;
		1292	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1293
		1294	$self->{load_path} = $save;
		1295
		1296	return if $self->{deny_save};
		1297
		1298	local $self->{last_access} = $self->last_access;#d#
		1299
		1300	if ($uniq) {
		1301	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1302	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1303	} else {
		1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1305	}
		1306	}
		1307
		1308	sub swap_out {
		1309	my ($self) = @_;
		1310
		1311	# save first because save cedes
		1312	$self->save;
		1313
		1314	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1315
		1316	return if $self->players;
		1317	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1318	return if $self->{deny_save};
		1319
		1320	$self->clear;
		1321	$self->in_memory (cf::MAP_SWAPPED);
		1322	}
		1323
		1324	sub reset_at {
		1325	my ($self) = @_;
		1326
		1327	# TODO: safety, remove and allow resettable per-player maps
		1328	return 1e99 if $self->{path}{user_rel};
		1329	return 1e99 if $self->{deny_reset};
		1330
		1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1333
		1334	$time + $to
		1335	}
		1336
		1337	sub should_reset {
		1338	my ($self) = @_;
		1339
		1340	$self->reset_at <= $cf::RUNTIME
		1341	}
		1342
		1343	sub unlink_save {
		1344	my ($self) = @_;
		1345
		1346	utf8::encode (my $save = $self->{path}->save_path);
		1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1349	}
		1350
		1351	sub rename {
		1352	my ($self, $new_path) = @_;
		1353
		1354	$self->unlink_save;
		1355
		1356	delete $cf::MAP{$self->path};
		1357	$self->{path} = new cf::path $new_path;
		1358	$self->path ($self->{path}->as_string);
		1359	$cf::MAP{$self->path} = $self;
		1360
		1361	$self->save;
		1362	}
		1363
		1364	sub reset {
		1365	my ($self) = @_;
		1366
		1367	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1368
		1369	return if $self->players;
		1370	return if $self->{path}{user_rel};#d#
		1371
		1372	warn "resetting map ", $self->path;#d#
		1373
		1374	delete $cf::MAP{$self->path};
		1375
		1376	$_->clear_links_to ($self) for values %cf::MAP;
		1377
		1378	$self->unlink_save;
		1379	$self->destroy;
		1380	}
		1381
		1382	my $nuke_counter = "aaaa";
		1383
		1384	sub nuke {
		1385	my ($self) = @_;
		1386
		1387	$self->{deny_save} = 1;
		1388	$self->reset_timeout (1);
		1389	$self->rename ("{nuke}/" . ($nuke_counter++));
		1390	$self->reset; # polite request, might not happen
		1391	}
		1392
		1393	sub customise_for {
		1394	my ($map, $ob) = @_;
		1395
		1396	if ($map->per_player) {
		1397	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1398	}
		1399
		1400	$map
		1401	}
		1402
		1403	sub emergency_save {
		1404	my $freeze_guard = cf::freeze_mainloop;
		1405
		1406	warn "enter emergency map save\n";
		1407
		1408	cf::sync_job {
		1409	warn "begin emergency map save\n";
		1410	$_->save for values %cf::MAP;
		1411	};
		1412
		1413	warn "end emergency map save\n";
		1414	}
		1415
		1416	package cf;
		1417
		1418	=back
		1419
		1420
		1421	=head3 cf::object::player
		1422
		1423	=over 4
		1424
789	=item $player_object->reply ($npc, $msg[, $flags])	1425	=item $player_object->reply ($npc, $msg[, $flags])
790		1426
791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1427	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
792	can be C<undef>. Does the right thing when the player is currently in a	1428	can be C<undef>. Does the right thing when the player is currently in a
793	dialogue with the given NPC character.	1429	dialogue with the given NPC character.
794		1430
795	=cut	1431	=cut
796		1432
797	# rough implementation of a future "reply" method that works	1433	# rough implementation of a future "reply" method that works
798	# with dialog boxes.	1434	# with dialog boxes.
		1435	#TODO: the first argument must go, split into a $npc->reply_to ( method
799	sub cf::object::player::reply($$$;$) {	1436	sub cf::object::player::reply($$$;$) {
800	my ($self, $npc, $msg, $flags) = @_;	1437	my ($self, $npc, $msg, $flags) = @_;
801		1438
802	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1439	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
803		1440
…		…
807	$msg = $npc->name . " says: $msg" if $npc;	1444	$msg = $npc->name . " says: $msg" if $npc;
808	$self->message ($msg, $flags);	1445	$self->message ($msg, $flags);
809	}	1446	}
810	}	1447	}
811		1448
812	=item $player->ext_reply ($msgid, $msgtype, %msg)
813
814	Sends an ext reply to the player.
815
816	=cut
817
818	sub cf::player::ext_reply($$$%) {
819	my ($self, $id, %msg) = @_;
820
821	$msg{msgid} = $id;
822
823	$self->send ("ext " . to_json \%msg);
824	}
825
826	=item $player_object->may ("access")	1449	=item $player_object->may ("access")
827		1450
828	Returns wether the given player is authorized to access resource "access"	1451	Returns wether the given player is authorized to access resource "access"
829	(e.g. "command_wizcast").	1452	(e.g. "command_wizcast").
830		1453
…		…
837	(ref $cf::CFG{"may_$access"}	1460	(ref $cf::CFG{"may_$access"}
838	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1461	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
839	: $cf::CFG{"may_$access"})	1462	: $cf::CFG{"may_$access"})
840	}	1463	}
841		1464
842	=cut	1465	=item $player_object->enter_link
843		1466
844	#############################################################################	1467	Freezes the player and moves him/her to a special map (C<{link}>).
		1468
		1469	The player should be reaosnably safe there for short amounts of time. You
		1470	I<MUST> call C<leave_link> as soon as possible, though.
		1471
		1472	=item $player_object->leave_link ($map, $x, $y)
		1473
		1474	Moves the player out of the specila link map onto the given map. If the
		1475	map is not valid (or omitted), the player will be moved back to the
		1476	location he/she was before the call to C<enter_link>, or, if that fails,
		1477	to the emergency map position.
		1478
		1479	Might block.
		1480
		1481	=cut
		1482
		1483	sub cf::object::player::enter_link {
		1484	my ($self) = @_;
		1485
		1486	$self->deactivate_recursive;
		1487
		1488	return if $self->map == $LINK_MAP;
		1489
		1490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1491	if $self->map;
		1492
		1493	$self->enter_map ($LINK_MAP, 20, 20);
		1494	}
		1495
		1496	sub cf::object::player::leave_link {
		1497	my ($self, $map, $x, $y) = @_;
		1498
		1499	my $link_pos = delete $self->{_link_pos};
		1500
		1501	unless ($map) {
		1502	# restore original map position
		1503	($map, $x, $y) = @{ $link_pos || [] };
		1504	$map = cf::map::find $map;
		1505
		1506	unless ($map) {
		1507	($map, $x, $y) = @$EMERGENCY_POSITION;
		1508	$map = cf::map::find $map
		1509	or die "FATAL: cannot load emergency map\n";
		1510	}
		1511	}
		1512
		1513	($x, $y) = (-1, -1)
		1514	unless (defined $x) && (defined $y);
		1515
		1516	# use -1 or undef as default coordinates, not 0, 0
		1517	($x, $y) = ($map->enter_x, $map->enter_y)
		1518	if $x <=0 && $y <= 0;
		1519
		1520	$map->load;
		1521
		1522	$self->activate_recursive;
		1523	$self->enter_map ($map, $x, $y);
		1524	}
		1525
		1526	cf::player->attach (
		1527	on_logout => sub {
		1528	my ($pl) = @_;
		1529
		1530	# abort map switching before logout
		1531	if ($pl->ob->{_link_pos}) {
		1532	cf::sync_job {
		1533	$pl->ob->leave_link
		1534	};
		1535	}
		1536	},
		1537	on_login => sub {
		1538	my ($pl) = @_;
		1539
		1540	# try to abort aborted map switching on player login :)
		1541	# should happen only on crashes
		1542	if ($pl->ob->{_link_pos}) {
		1543	$pl->ob->enter_link;
		1544	Coro::async_pool {
		1545	# we need this sleep as the login has a concurrent enter_exit running
		1546	# and this sleep increases chances of the player not ending up in scorn
		1547	Coro::Timer::sleep 1;
		1548	$pl->ob->leave_link;
		1549	};
		1550	}
		1551	},
		1552	);
		1553
		1554	=item $player_object->goto ($path, $x, $y)
		1555
		1556	=cut
		1557
		1558	sub cf::object::player::goto {
		1559	my ($self, $path, $x, $y) = @_;
		1560
		1561	$self->enter_link;
		1562
		1563	(Coro::async_pool {
		1564	$path = new cf::path $path;
		1565
		1566	my $map = cf::map::find $path->as_string;
		1567	$map = $map->customise_for ($self) if $map;
		1568
		1569	# warn "entering ", $map->path, " at ($x, $y)\n"
		1570	# if $map;
		1571
		1572	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1573
		1574	$self->leave_link ($map, $x, $y);
		1575	})->prio (1);
		1576	}
		1577
		1578	=item $player_object->enter_exit ($exit_object)
		1579
		1580	=cut
		1581
		1582	sub parse_random_map_params {
		1583	my ($spec) = @_;
		1584
		1585	my $rmp = { # defaults
		1586	xsize => 10,
		1587	ysize => 10,
		1588	};
		1589
		1590	for (split /\n/, $spec) {
		1591	my ($k, $v) = split /\s+/, $_, 2;
		1592
		1593	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1594	}
		1595
		1596	$rmp
		1597	}
		1598
		1599	sub prepare_random_map {
		1600	my ($exit) = @_;
		1601
		1602	# all this does is basically replace the /! path by
		1603	# a new random map path (?random/...) with a seed
		1604	# that depends on the exit object
		1605
		1606	my $rmp = parse_random_map_params $exit->msg;
		1607
		1608	if ($exit->map) {
		1609	$rmp->{region} = $exit->map->region_name;
		1610	$rmp->{origin_map} = $exit->map->path;
		1611	$rmp->{origin_x} = $exit->x;
		1612	$rmp->{origin_y} = $exit->y;
		1613	}
		1614
		1615	$rmp->{random_seed} ||= $exit->random_seed;
		1616
		1617	my $data = cf::to_json $rmp;
		1618	my $md5 = Digest::MD5::md5_hex $data;
		1619
		1620	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1621	aio_write $fh, 0, (length $data), $data, 0;
		1622
		1623	$exit->slaying ("?random/$md5");
		1624	$exit->msg (undef);
		1625	}
		1626	}
		1627
		1628	sub cf::object::player::enter_exit {
		1629	my ($self, $exit) = @_;
		1630
		1631	return unless $self->type == cf::PLAYER;
		1632
		1633	$self->enter_link;
		1634
		1635	(Coro::async_pool {
		1636	$self->deactivate_recursive; # just to be sure
		1637	unless (eval {
		1638	prepare_random_map $exit
		1639	if $exit->slaying eq "/!";
		1640
		1641	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1642	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1643
		1644	1;
		1645	}) {
		1646	$self->message ("Something went wrong deep within the crossfire server. "
		1647	. "I'll try to bring you back to the map you were before. "
		1648	. "Please report this to the dungeon master",
		1649	cf::NDI_UNIQUE | cf::NDI_RED);
		1650
		1651	warn "ERROR in enter_exit: $@";
		1652	$self->leave_link;
		1653	}
		1654	})->prio (1);
		1655	}
		1656
		1657	=head3 cf::client
		1658
		1659	=over 4
		1660
		1661	=item $client->send_drawinfo ($text, $flags)
		1662
		1663	Sends a drawinfo packet to the client. Circumvents output buffering so
		1664	should not be used under normal circumstances.
		1665
		1666	=cut
		1667
		1668	sub cf::client::send_drawinfo {
		1669	my ($self, $text, $flags) = @_;
		1670
		1671	utf8::encode $text;
		1672	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1673	}
		1674
		1675
		1676	=item $success = $client->query ($flags, "text", \&cb)
		1677
		1678	Queues a query to the client, calling the given callback with
		1679	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1680	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1681
		1682	Queries can fail, so check the return code. Or don't, as queries will become
		1683	reliable at some point in the future.
		1684
		1685	=cut
		1686
		1687	sub cf::client::query {
		1688	my ($self, $flags, $text, $cb) = @_;
		1689
		1690	return unless $self->state == ST_PLAYING
		1691	|| $self->state == ST_SETUP
		1692	|| $self->state == ST_CUSTOM;
		1693
		1694	$self->state (ST_CUSTOM);
		1695
		1696	utf8::encode $text;
		1697	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1698
		1699	$self->send_packet ($self->{query_queue}[0][0])
		1700	if @{ $self->{query_queue} } == 1;
		1701	}
		1702
		1703	cf::client->attach (
		1704	on_reply => sub {
		1705	my ($ns, $msg) = @_;
		1706
		1707	# this weird shuffling is so that direct followup queries
		1708	# get handled first
		1709	my $queue = delete $ns->{query_queue}
		1710	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1711
		1712	(shift @$queue)->[1]->($msg);
		1713
		1714	push @{ $ns->{query_queue} }, @$queue;
		1715
		1716	if (@{ $ns->{query_queue} } == @$queue) {
		1717	if (@$queue) {
		1718	$ns->send_packet ($ns->{query_queue}[0][0]);
		1719	} else {
		1720	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1721	}
		1722	}
		1723	},
		1724	);
		1725
		1726	=item $client->coro (\&cb)
		1727
		1728	Create a new coroutine, running the specified callback. The coroutine will
		1729	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1730	or loss of connection).
		1731
		1732	=cut
		1733
		1734	sub cf::client::coro {
		1735	my ($self, $cb) = @_;
		1736
		1737	my $coro = &Coro::async_pool ($cb);
		1738
		1739	$coro->on_destroy (sub {
		1740	delete $self->{_coro}{$coro+0};
		1741	});
		1742
		1743	$self->{_coro}{$coro+0} = $coro;
		1744
		1745	$coro
		1746	}
		1747
		1748	cf::client->attach (
		1749	on_destroy => sub {
		1750	my ($ns) = @_;
		1751
		1752	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1753	},
		1754	);
		1755
		1756	=back
		1757
845		1758
846	=head2 SAFE SCRIPTING	1759	=head2 SAFE SCRIPTING
847		1760
848	Functions that provide a safe environment to compile and execute	1761	Functions that provide a safe environment to compile and execute
849	snippets of perl code without them endangering the safety of the server	1762	snippets of perl code without them endangering the safety of the server
…		…
864		1777
865	=pod	1778	=pod
866		1779
867	The following fucntions and emthods are available within a safe environment:	1780	The following fucntions and emthods are available within a safe environment:
868		1781
869	cf::object contr pay_amount pay_player	1782	cf::object contr pay_amount pay_player map
870	cf::object::player player	1783	cf::object::player player
871	cf::player peaceful	1784	cf::player peaceful
		1785	cf::map trigger
872		1786
873	=cut	1787	=cut
874		1788
875	for (	1789	for (
876	["cf::object" => qw(contr pay_amount pay_player)],	1790	["cf::object" => qw(contr pay_amount pay_player map)],
877	["cf::object::player" => qw(player)],	1791	["cf::object::player" => qw(player)],
878	["cf::player" => qw(peaceful)],	1792	["cf::player" => qw(peaceful)],
		1793	["cf::map" => qw(trigger)],
879	) {	1794	) {
880	no strict 'refs';	1795	no strict 'refs';
881	my ($pkg, @funs) = @$_;	1796	my ($pkg, @funs) = @$_;
882	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1797	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
883	for @funs;	1798	for @funs;
…		…
999		1914
1000	{	1915	{
1001	my $path = cf::localdir . "/database.pst";	1916	my $path = cf::localdir . "/database.pst";
1002		1917
1003	sub db_load() {	1918	sub db_load() {
1004	warn "loading database $path\n";#d# remove later
1005	$DB = stat $path ? Storable::retrieve $path : { };	1919	$DB = stat $path ? Storable::retrieve $path : { };
1006	}	1920	}
1007		1921
1008	my $pid;	1922	my $pid;
1009		1923
1010	sub db_save() {	1924	sub db_save() {
1011	warn "saving database $path\n";#d# remove later
1012	waitpid $pid, 0 if $pid;	1925	waitpid $pid, 0 if $pid;
1013	if (0 == ($pid = fork)) {	1926	if (0 == ($pid = fork)) {
1014	$DB->{_meta}{version} = 1;	1927	$DB->{_meta}{version} = 1;
1015	Storable::nstore $DB, "$path~";	1928	Storable::nstore $DB, "$path~";
1016	rename "$path~", $path;	1929	rename "$path~", $path;
…		…
1023	sub db_sync() {	1936	sub db_sync() {
1024	db_save if $dirty;	1937	db_save if $dirty;
1025	undef $dirty;	1938	undef $dirty;
1026	}	1939	}
1027		1940
1028	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1941	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1029	db_sync;	1942	db_sync;
1030	});	1943	});
1031		1944
1032	sub db_dirty() {	1945	sub db_dirty() {
1033	$dirty = 1;	1946	$dirty = 1;
…		…
1047	$DB->{$_[0]} = $_[1];	1960	$DB->{$_[0]} = $_[1];
1048	}	1961	}
1049	db_dirty;	1962	db_dirty;
1050	}	1963	}
1051		1964
1052	attach_global	1965	cf::global->attach (
1053	prio => 10000,	1966	prio => 10000,
1054	on_cleanup => sub {	1967	on_cleanup => sub {
1055	db_sync;	1968	db_sync;
1056	},	1969	},
1057	;	1970	);
1058	}	1971	}
1059		1972
1060	#############################################################################	1973	#############################################################################
1061	# the server's main()	1974	# the server's main()
1062		1975
…		…
1064	open my $fh, "<:utf8", cf::confdir . "/config"	1977	open my $fh, "<:utf8", cf::confdir . "/config"
1065	or return;	1978	or return;
1066		1979
1067	local $/;	1980	local $/;
1068	*CFG = YAML::Syck::Load <$fh>;	1981	*CFG = YAML::Syck::Load <$fh>;
		1982
		1983	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		1984
		1985	if (exists $CFG{mlockall}) {
		1986	eval {
		1987	$CFG{mlockall} ? &mlockall : &munlockall
		1988	and die "WARNING: m(un)lockall failed: $!\n";
		1989	};
		1990	warn $@ if $@;
		1991	}
1069	}	1992	}
1070		1993
1071	sub main {	1994	sub main {
		1995	# we must not ever block the main coroutine
		1996	local $Coro::idle = sub {
		1997	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		1998	(Coro::unblock_sub {
		1999	Event::one_event;
		2000	})->();
		2001	};
		2002
1072	cfg_load;	2003	cfg_load;
1073	db_load;	2004	db_load;
1074	load_extensions;	2005	load_extensions;
1075	Event::loop;	2006	Event::loop;
1076	}	2007	}
1077		2008
1078	#############################################################################	2009	#############################################################################
1079	# initialisation	2010	# initialisation
1080		2011
1081	sub _perl_reload(&) {	2012	sub reload() {
1082	my ($msg) = @_;	2013	# can/must only be called in main
		2014	if ($Coro::current != $Coro::main) {
		2015	warn "can only reload from main coroutine\n";
		2016	return;
		2017	}
1083		2018
1084	$msg->("reloading...");	2019	warn "reloading...";
		2020
		2021	my $guard = freeze_mainloop;
		2022	cf::emergency_save;
1085		2023
1086	eval {	2024	eval {
		2025	# if anything goes wrong in here, we should simply crash as we already saved
		2026
1087	# cancel all watchers	2027	# cancel all watchers
1088	$_->cancel for Event::all_watchers;	2028	for (Event::all_watchers) {
		2029	$_->cancel if $_->data & WF_AUTOCANCEL;
		2030	}
		2031
		2032	# cancel all extension coros
		2033	$_->cancel for values %EXT_CORO;
		2034	%EXT_CORO = ();
1089		2035
1090	# unload all extensions	2036	# unload all extensions
1091	for (@exts) {	2037	for (@exts) {
1092	$msg->("unloading <$_>");	2038	warn "unloading <$_>";
1093	unload_extension $_;	2039	unload_extension $_;
1094	}	2040	}
1095		2041
1096	# unload all modules loaded from $LIBDIR	2042	# unload all modules loaded from $LIBDIR
1097	while (my ($k, $v) = each %INC) {	2043	while (my ($k, $v) = each %INC) {
1098	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2044	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1099		2045
1100	$msg->("removing <$k>");	2046	warn "removing <$k>";
1101	delete $INC{$k};	2047	delete $INC{$k};
1102		2048
1103	$k =~ s/\.pm$//;	2049	$k =~ s/\.pm$//;
1104	$k =~ s/\//::/g;	2050	$k =~ s/\//::/g;
1105		2051
…		…
1110	Symbol::delete_package $k;	2056	Symbol::delete_package $k;
1111	}	2057	}
1112		2058
1113	# sync database to disk	2059	# sync database to disk
1114	cf::db_sync;	2060	cf::db_sync;
		2061	IO::AIO::flush;
1115		2062
1116	# get rid of safe::, as good as possible	2063	# get rid of safe::, as good as possible
1117	Symbol::delete_package "safe::$_"	2064	Symbol::delete_package "safe::$_"
1118	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1119		2066
1120	# remove register_script_function callbacks	2067	# remove register_script_function callbacks
1121	# TODO	2068	# TODO
1122		2069
1123	# unload cf.pm "a bit"	2070	# unload cf.pm "a bit"
…		…
1126	# don't, removes xs symbols, too,	2073	# don't, removes xs symbols, too,
1127	# and global variables created in xs	2074	# and global variables created in xs
1128	#Symbol::delete_package __PACKAGE__;	2075	#Symbol::delete_package __PACKAGE__;
1129		2076
1130	# reload cf.pm	2077	# reload cf.pm
1131	$msg->("reloading cf.pm");	2078	warn "reloading cf.pm";
1132	require cf;	2079	require cf;
		2080	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1133		2081
1134	# load config and database again	2082	# load config and database again
1135	cf::cfg_load;	2083	cf::cfg_load;
1136	cf::db_load;	2084	cf::db_load;
1137		2085
1138	# load extensions	2086	# load extensions
1139	$msg->("load extensions");	2087	warn "load extensions";
1140	cf::load_extensions;	2088	cf::load_extensions;
1141		2089
1142	# reattach attachments to objects	2090	# reattach attachments to objects
1143	$msg->("reattach");	2091	warn "reattach";
1144	_global_reattach;	2092	_global_reattach;
1145	};	2093	};
1146	$msg->($@) if $@;
1147		2094
1148	$msg->("reloaded");	2095	if ($@) {
		2096	warn $@;
		2097	warn "error while reloading, exiting.";
		2098	exit 1;
		2099	}
		2100
		2101	warn "reloaded successfully";
1149	};	2102	};
1150		2103
1151	sub perl_reload() {	2104	#############################################################################
1152	_perl_reload {	2105
1153	warn $_[0];	2106	unless ($LINK_MAP) {
1154	print "$_[0]\n";	2107	$LINK_MAP = cf::map::new;
1155	};	2108
		2109	$LINK_MAP->width (41);
		2110	$LINK_MAP->height (41);
		2111	$LINK_MAP->alloc;
		2112	$LINK_MAP->path ("{link}");
		2113	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2114	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2115
		2116	# dirty hack because... archetypes are not yet loaded
		2117	Event->timer (
		2118	after => 2,
		2119	cb => sub {
		2120	$_[0]->w->cancel;
		2121
		2122	# provide some exits "home"
		2123	my $exit = cf::object::new "exit";
		2124
		2125	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2126	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2127	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2128
		2129	$LINK_MAP->insert ($exit->clone, 19, 19);
		2130	$LINK_MAP->insert ($exit->clone, 19, 20);
		2131	$LINK_MAP->insert ($exit->clone, 19, 21);
		2132	$LINK_MAP->insert ($exit->clone, 20, 19);
		2133	$LINK_MAP->insert ($exit->clone, 20, 21);
		2134	$LINK_MAP->insert ($exit->clone, 21, 19);
		2135	$LINK_MAP->insert ($exit->clone, 21, 20);
		2136	$LINK_MAP->insert ($exit->clone, 21, 21);
		2137
		2138	$exit->destroy;
		2139	});
		2140
		2141	$LINK_MAP->{deny_save} = 1;
		2142	$LINK_MAP->{deny_reset} = 1;
		2143
		2144	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1156	}	2145	}
1157		2146
1158	register "<global>", __PACKAGE__;	2147	register "<global>", __PACKAGE__;
1159		2148
1160	register_command "perl-reload" => sub {	2149	register_command "reload" => sub {
1161	my ($who, $arg) = @_;	2150	my ($who, $arg) = @_;
1162		2151
1163	if ($who->flag (FLAG_WIZ)) {	2152	if ($who->flag (FLAG_WIZ)) {
1164	_perl_reload {	2153	$who->message ("start of reload.");
1165	warn $_[0];	2154	reload;
1166	$who->message ($_[0]);	2155	$who->message ("end of reload.");
1167	};
1168	}	2156	}
1169	};	2157	};
1170		2158
1171	unshift @INC, $LIBDIR;	2159	unshift @INC, $LIBDIR;
1172		2160
1173	$TICK_WATCHER = Event->timer (	2161	$TICK_WATCHER = Event->timer (
		2162	reentrant => 0,
1174	prio => 1,	2163	prio => 0,
1175	async => 1,
1176	at => $NEXT_TICK || 1,	2164	at => $NEXT_TICK || $TICK,
		2165	data => WF_AUTOCANCEL,
1177	cb => sub {	2166	cb => sub {
1178	cf::server_tick; # one server iteration	2167	cf::server_tick; # one server iteration
1179		2168	$RUNTIME += $TICK;
1180	my $NOW = Event::time;
1181	$NEXT_TICK += $TICK;	2169	$NEXT_TICK += $TICK;
1182		2170
1183	# if we are delayed by four ticks or more, skip them all	2171	# if we are delayed by four ticks or more, skip them all
1184	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2172	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1185		2173
1186	$TICK_WATCHER->at ($NEXT_TICK);	2174	$TICK_WATCHER->at ($NEXT_TICK);
1187	$TICK_WATCHER->start;	2175	$TICK_WATCHER->start;
1188	},	2176	},
1189	);	2177	);
1190		2178
1191	IO::AIO::max_poll_time $TICK * 0.2;	2179	IO::AIO::max_poll_time $TICK * 0.2;
1192		2180
		2181	Event->io (
1193	Event->io (fd => IO::AIO::poll_fileno,	2182	fd => IO::AIO::poll_fileno,
1194	poll => 'r',	2183	poll => 'r',
1195	prio => 5,	2184	prio => 5,
		2185	data => WF_AUTOCANCEL,
1196	cb => \&IO::AIO::poll_cb);	2186	cb => \&IO::AIO::poll_cb,
		2187	);
		2188
		2189	Event->timer (
		2190	data => WF_AUTOCANCEL,
		2191	after => 0,
		2192	interval => 10,
		2193	cb => sub {
		2194	(Coro::unblock_sub {
		2195	write_runtime
		2196	or warn "ERROR: unable to write runtime file: $!";
		2197	})->();
		2198	},
		2199	);
		2200
		2201	END { cf::emergency_save }
1197		2202
1198	1	2203	1
1199		2204

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