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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 1.139 by root, Fri Jan 5 19:12:03 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 (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
20		34
21	our %COMMAND = ();	35	our %COMMAND = ();
22	our %COMMAND_TIME = ();	36	our %COMMAND_TIME = ();
23	our %EXTCMD = ();	37	our %EXTCMD = ();
24		38
25	_init_vars;
26
27	our @EVENT;	39	our @EVENT;
28	our $LIBDIR = maps_directory "perl";	40	our $LIBDIR = datadir . "/ext";
29		41
30	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
31	our $TICK_WATCHER;	43	our $TICK_WATCHER;
32	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
33		46
34	our %CFG;	47	our %CFG;
35		48
36	our $UPTIME; $UPTIME ||= time;	49	our $UPTIME; $UPTIME ||= time;
		50	our $RUNTIME;
		51
		52	our %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	unless (Coro::cede) {
		269	Coro::nready ? Event::one_event 0 : Event::one_event;
		270	Coro::cede_notself unless Coro::cede;
		271	}
		272	}
		273
		274	wantarray ? @res : $res[0]
		275	} else {
		276	# we are in another coroutine, how wonderful, everything just works
		277
		278	$job->()
		279	}
		280	}
		281
		282	=item $coro = cf::coro { BLOCK }
		283
		284	Creates (and readies) and returns a new coro. This coro is automcatially
		285	being canceled when the extension calling this is being unloaded.
		286
		287	=cut
		288
		289	sub coro(&) {
		290	my $cb = shift;
		291
		292	my $coro = &Coro::async_pool ($cb);
		293
		294	$coro->on_destroy (sub {
		295	delete $EXT_CORO{$coro+0};
		296	});
		297	$EXT_CORO{$coro+0} = $coro;
		298
		299	$coro
		300	}
		301
		302	sub write_runtime {
		303	my $runtime = cf::localdir . "/runtime";
		304
		305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		306	or return;
		307
		308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		309	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		310	and return;
		311
		312	aio_fsync $fh
		313	and return;
		314
		315	close $fh
		316	or return;
		317
		318	aio_rename "$runtime~", $runtime
		319	and return;
		320
		321	1
		322	}
		323
129	=back	324	=back
130		325
131	=cut	326	=cut
132		327
133	#############################################################################	328	#############################################################################
134		329
135	=head2 EVENTS AND OBJECT ATTACHMENTS	330	package cf::path;
		331
		332	sub new {
		333	my ($class, $path, $base) = @_;
		334
		335	$path = $path->as_string if ref $path;
		336
		337	my $self = bless { }, $class;
		338
		339	# {... are special paths that are not touched
		340	# ?xxx/... are special absolute paths
		341	# ?random/... random maps
		342	# /! non-realised random map exit
		343	# /... normal maps
		344	# ~/... per-player maps without a specific player (DO NOT USE)
		345	# ~user/... per-player map of a specific user
		346
		347	if ($path =~ /^{/) {
		348	# fine as it is
		349	} elsif ($path =~ s{^\?random/}{}) {
		350	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		351	$self->{random} = cf::from_json $data;
		352	} else {
		353	if ($path =~ s{^~([^/]+)?}{}) {
		354	$self->{user_rel} = 1;
		355
		356	if (defined $1) {
		357	$self->{user} = $1;
		358	} elsif ($base =~ m{^~([^/]+)/}) {
		359	$self->{user} = $1;
		360	} else {
		361	warn "cannot resolve user-relative path without user <$path,$base>\n";
		362	}
		363	} elsif ($path =~ /^\//) {
		364	# already absolute
		365	} else {
		366	$base =~ s{[^/]+/?$}{};
		367	return $class->new ("$base/$path");
		368	}
		369
		370	for ($path) {
		371	redo if s{/\.?/}{/};
		372	redo if s{/[^/]+/\.\./}{/};
		373	}
		374	}
		375
		376	$self->{path} = $path;
		377
		378	$self
		379	}
		380
		381	# the name / primary key / in-game path
		382	sub as_string {
		383	my ($self) = @_;
		384
		385	$self->{user_rel} ? "~$self->{user}$self->{path}"
		386	: $self->{random} ? "?random/$self->{path}"
		387	: $self->{path}
		388	}
		389
		390	# the displayed name, this is a one way mapping
		391	sub visible_name {
		392	my ($self) = @_;
		393
		394	# if (my $rmp = $self->{random}) {
		395	# # todo: be more intelligent about this
		396	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		397	# } else {
		398	$self->as_string
		399	# }
		400	}
		401
		402	# escape the /'s in the path
		403	sub _escaped_path {
		404	# ∕ is U+2215
		405	(my $path = $_[0]{path}) =~ s/\//∕/g;
		406	$path
		407	}
		408
		409	# the original (read-only) location
		410	sub load_path {
		411	my ($self) = @_;
		412
		413	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		414	}
		415
		416	# the temporary/swap location
		417	sub save_path {
		418	my ($self) = @_;
		419
		420	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		421	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		422	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		423	}
		424
		425	# the unique path, might be eq to save_path
		426	sub uniq_path {
		427	my ($self) = @_;
		428
		429	$self->{user_rel} || $self->{random}
		430	? undef
		431	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		432	}
		433
		434	# return random map parameters, or undef
		435	sub random_map_params {
		436	my ($self) = @_;
		437
		438	$self->{random}
		439	}
		440
		441	# this is somewhat ugly, but style maps do need special treatment
		442	sub is_style_map {
		443	$_[0]{path} =~ m{^/styles/}
		444	}
		445
		446	package cf;
		447
		448	#############################################################################
		449
		450	=head2 ATTACHABLE OBJECTS
		451
		452	Many objects in crossfire are so-called attachable objects. That means you can
		453	attach callbacks/event handlers (a collection of which is called an "attachment")
		454	to it. All such attachable objects support the following methods.
		455
		456	In the following description, CLASS can be any of C<global>, C<object>
		457	C<player>, C<client> or C<map> (i.e. the attachable objects in
		458	crossfire+).
136		459
137	=over 4	460	=over 4
138		461
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...)	462	=item $attachable->attach ($attachment, key => $value...)
152		463
153	=item $map->detach ($attachment)	464	=item $attachable->detach ($attachment)
154		465
155	Attach/detach a pre-registered attachment to a map.	466	Attach/detach a pre-registered attachment to a specific object and give it
		467	the specified key/value pairs as arguments.
156		468
157	=item $bool = $object->attached ($name)	469	Example, attach a minesweeper attachment to the given object, making it a
		470	10x10 minesweeper game:
158		471
159	=item $bool = $player->attached ($name)	472	$obj->attach (minesweeper => width => 10, height => 10);
160		473
161	=item $bool = $map->attached ($name)	474	=item $bool = $attachable->attached ($name)
162		475
163	Checks wether the named attachment is currently attached to the object.	476	Checks wether the named attachment is currently attached to the object.
164		477
165	=item cf::attach_global ...	478	=item cf::CLASS->attach ...
166		479
167	Attach handlers for global events.	480	=item cf::CLASS->detach ...
168		481
169	This and all following C<attach_*>-functions expect any number of the	482	Define an anonymous attachment and attach it to all objects of the given
170	following handler/hook descriptions:	483	CLASS. See the next function for an explanation of its arguments.
		484
		485	You can attach to global events by using the C<cf::global> class.
		486
		487	Example, log all player logins:
		488
		489	cf::player->attach (
		490	on_login => sub {
		491	my ($pl) = @_;
		492	...
		493	},
		494	);
		495
		496	Example, attach to the jeweler skill:
		497
		498	cf::object->attach (
		499	type => cf::SKILL,
		500	subtype => cf::SK_JEWELER,
		501	on_use_skill => sub {
		502	my ($sk, $ob, $part, $dir, $msg) = @_;
		503	...
		504	},
		505	);
		506
		507	=item cf::CLASS::attachment $name, ...
		508
		509	Register an attachment by C<$name> through which attachable objects of the
		510	given CLASS can refer to this attachment.
		511
		512	Some classes such as crossfire maps and objects can specify attachments
		513	that are attached at load/instantiate time, thus the need for a name.
		514
		515	These calls expect any number of the following handler/hook descriptions:
171		516
172	=over 4	517	=over 4
173		518
174	=item prio => $number	519	=item prio => $number
175		520
…		…
177	by another C<prio> setting). Lower priority handlers get executed	522	by another C<prio> setting). Lower priority handlers get executed
178	earlier. The default priority is C<0>, and many built-in handlers are	523	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	524	registered at priority C<-1000>, so lower priorities should not be used
180	unless you know what you are doing.	525	unless you know what you are doing.
181		526
		527	=item type => $type
		528
		529	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		530	given type of objects only (the additional parameter C<subtype> can be
		531	used to further limit to the given subtype).
		532
182	=item on_I<event> => \&cb	533	=item on_I<event> => \&cb
183		534
184	Call the given code reference whenever the named event happens (event is	535	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	536	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	537	handlers are recognised generally depends on the type of object these
…		…
195	package and register them. Only handlers for eevents supported by the	546	package and register them. Only handlers for eevents supported by the
196	object/class are recognised.	547	object/class are recognised.
197		548
198	=back	549	=back
199		550
200	=item cf::attach_to_type $object_type, $subtype, ...	551	Example, define an attachment called "sockpuppet" that calls the given
		552	event handler when a monster attacks:
201		553
202	Attach handlers for a specific object type (e.g. TRANSPORT) and	554	cf::object::attachment sockpuppet =>
203	subtype. If C<$subtype> is zero or undef, matches all objects of the given	555	on_skill_attack => sub {
204	type.	556	my ($self, $victim) = @_;
205		557	...
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	}	558	}
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	559	}
427	}
428		560
429	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	561	=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		562
455	Just because you have a perl object does not mean that the corresponding	563	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	564	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	565	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	566	can be used to test for existence of the C object part without causing an
459	exception.	567	exception.
460		568
		569	=cut
		570
		571	# the following variables are defined in .xs and must not be re-created
		572	our @CB_GLOBAL = (); # registry for all global events
		573	our @CB_ATTACHABLE = (); # registry for all attachables
		574	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		575	our @CB_PLAYER = ();
		576	our @CB_CLIENT = ();
		577	our @CB_TYPE = (); # registry for type (cf-object class) based events
		578	our @CB_MAP = ();
		579
		580	my %attachment;
		581
		582	sub _attach_cb($$$$) {
		583	my ($registry, $event, $prio, $cb) = @_;
		584
		585	use sort 'stable';
		586
		587	$cb = [$prio, $cb];
		588
		589	@{$registry->[$event]} = sort
		590	{ $a->[0] cmp $b->[0] }
		591	@{$registry->[$event] || []}, $cb;
		592	}
		593
		594	# hack
		595	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		596
		597	# attach handles attaching event callbacks
		598	# the only thing the caller has to do is pass the correct
		599	# registry (== where the callback attaches to).
		600	sub _attach {
		601	my ($registry, $klass, @arg) = @_;
		602
		603	my $object_type;
		604	my $prio = 0;
		605	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		606
		607	#TODO: get rid of this hack
		608	if ($attachable_klass{$klass}) {
		609	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		610	}
		611
		612	while (@arg) {
		613	my $type = shift @arg;
		614
		615	if ($type eq "prio") {
		616	$prio = shift @arg;
		617
		618	} elsif ($type eq "type") {
		619	$object_type = shift @arg;
		620	$registry = $CB_TYPE[$object_type] ||= [];
		621
		622	} elsif ($type eq "subtype") {
		623	defined $object_type or Carp::croak "subtype specified without type";
		624	my $object_subtype = shift @arg;
		625	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		626
		627	} elsif ($type eq "package") {
		628	my $pkg = shift @arg;
		629
		630	while (my ($name, $id) = each %cb_id) {
		631	if (my $cb = $pkg->can ($name)) {
		632	_attach_cb $registry, $id, $prio, $cb;
		633	}
		634	}
		635
		636	} elsif (exists $cb_id{$type}) {
		637	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		638
		639	} elsif (ref $type) {
		640	warn "attaching objects not supported, ignoring.\n";
		641
		642	} else {
		643	shift @arg;
		644	warn "attach argument '$type' not supported, ignoring.\n";
		645	}
		646	}
		647	}
		648
		649	sub _object_attach {
		650	my ($obj, $name, %arg) = @_;
		651
		652	return if exists $obj->{_attachment}{$name};
		653
		654	if (my $attach = $attachment{$name}) {
		655	my $registry = $obj->registry;
		656
		657	for (@$attach) {
		658	my ($klass, @attach) = @$_;
		659	_attach $registry, $klass, @attach;
		660	}
		661
		662	$obj->{$name} = \%arg;
		663	} else {
		664	warn "object uses attachment '$name' that is not available, postponing.\n";
		665	}
		666
		667	$obj->{_attachment}{$name} = undef;
		668	}
		669
		670	sub cf::attachable::attach {
		671	if (ref $_[0]) {
		672	_object_attach @_;
		673	} else {
		674	_attach shift->_attach_registry, @_;
		675	}
		676	};
		677
		678	# all those should be optimised
		679	sub cf::attachable::detach {
		680	my ($obj, $name) = @_;
		681
		682	if (ref $obj) {
		683	delete $obj->{_attachment}{$name};
		684	reattach ($obj);
		685	} else {
		686	Carp::croak "cannot, currently, detach class attachments";
		687	}
		688	};
		689
		690	sub cf::attachable::attached {
		691	my ($obj, $name) = @_;
		692
		693	exists $obj->{_attachment}{$name}
		694	}
		695
		696	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		697	eval "#line " . __LINE__ . " 'cf.pm'
		698	sub cf::\L$klass\E::_attach_registry {
		699	(\\\@CB_$klass, KLASS_$klass)
		700	}
		701
		702	sub cf::\L$klass\E::attachment {
		703	my \$name = shift;
		704
		705	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		706	}
		707	";
		708	die if $@;
		709	}
		710
		711	our $override;
		712	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		713
		714	sub override {
		715	$override = 1;
		716	@invoke_results = ();
		717	}
		718
		719	sub do_invoke {
		720	my $event = shift;
		721	my $callbacks = shift;
		722
		723	@invoke_results = ();
		724
		725	local $override;
		726
		727	for (@$callbacks) {
		728	eval { &{$_->[1]} };
		729
		730	if ($@) {
		731	warn "$@";
		732	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		733	override;
		734	}
		735
		736	return 1 if $override;
		737	}
		738
		739	0
		740	}
		741
		742	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		743
		744	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		745
		746	Generate an object-specific event with the given arguments.
		747
		748	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		749	removed in future versions), and there is no public API to access override
		750	results (if you must, access C<@cf::invoke_results> directly).
		751
461	=back	752	=back
462		753
463	=cut	754	=cut
464
465	*cf::object::valid =
466	*cf::player::valid =
467	*cf::map::valid = \&cf::_valid;
468		755
469	#############################################################################	756	#############################################################################
470	# object support	757	# object support
471		758
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 {	759	sub reattach {
		760	# basically do the same as instantiate, without calling instantiate
486	my ($obj) = @_;	761	my ($obj) = @_;
		762
487	my $registry = $obj->registry;	763	my $registry = $obj->registry;
488		764
489	@$registry = ();	765	@$registry = ();
490		766
491	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	767	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
492		768
493	for my $name (keys %{ $obj->{_attachment} || {} }) {	769	for my $name (keys %{ $obj->{_attachment} || {} }) {
494	if (my $attach = $attachment{$name}) {	770	if (my $attach = $attachment{$name}) {
495	for (@$attach) {	771	for (@$attach) {
496	my ($klass, @attach) = @$_;	772	my ($klass, @attach) = @$_;
497	_attach @$registry, $klass, @attach;	773	_attach $registry, $klass, @attach;
498	}	774	}
499	} else {	775	} else {
500	warn "object uses attachment '$name' that is not available, postponing.\n";	776	warn "object uses attachment '$name' that is not available, postponing.\n";
501	}	777	}
502	}	778	}
503	}	779	}
504		780
505	sub object_freezer_save {	781	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	$$rdata . Dumper $objs
542	}
543
544	sub object_thawer_load {
545	my ($filename) = @_;
546
547	local $/;
548
549	my $av;
550
551	#TODO: use sysread etc.
552	if (open my $data, "<:raw:perlio", $filename) {
553	$data = <$data>;
554	if (open my $pst, "<:raw:perlio", "$filename.pst") {
555	$av = eval { (Storable::thaw <$pst>)->{objs} };
556	}
557	return ($data, $av);
558	}
559
560	()
561	}
562
563	attach_to_objects
564	prio => -1000000,	782	prio => -1000000,
		783	on_instantiate => sub {
		784	my ($obj, $data) = @_;
		785
		786	$data = from_json $data;
		787
		788	for (@$data) {
		789	my ($name, $args) = @$_;
		790
		791	$obj->attach ($name, %{$args || {} });
		792	}
		793	},
		794	on_reattach => \&reattach,
565	on_clone => sub {	795	on_clone => sub {
566	my ($src, $dst) = @_;	796	my ($src, $dst) = @_;
567		797
568	@{$dst->registry} = @{$src->registry};	798	@{$dst->registry} = @{$src->registry};
569		799
570	%$dst = %$src;	800	%$dst = %$src;
571		801
572	%{$dst->{_attachment}} = %{$src->{_attachment}}	802	%{$dst->{_attachment}} = %{$src->{_attachment}}
573	if exists $src->{_attachment};	803	if exists $src->{_attachment};
574	},	804	},
575	;	805	);
		806
		807	sub object_freezer_save {
		808	my ($filename, $rdata, $objs) = @_;
		809
		810	sync_job {
		811	if (length $$rdata) {
		812	warn sprintf "saving %s (%d,%d)\n",
		813	$filename, length $$rdata, scalar @$objs;
		814
		815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		816	chmod SAVE_MODE, $fh;
		817	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		818	aio_fsync $fh;
		819	close $fh;
		820
		821	if (@$objs) {
		822	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		823	chmod SAVE_MODE, $fh;
		824	my $data = Storable::nfreeze { version => 1, objs => $objs };
		825	aio_write $fh, 0, (length $data), $data, 0;
		826	aio_fsync $fh;
		827	close $fh;
		828	aio_rename "$filename.pst~", "$filename.pst";
		829	}
		830	} else {
		831	aio_unlink "$filename.pst";
		832	}
		833
		834	aio_rename "$filename~", $filename;
		835	} else {
		836	warn "FATAL: $filename~: $!\n";
		837	}
		838	} else {
		839	aio_unlink $filename;
		840	aio_unlink "$filename.pst";
		841	}
		842	}
		843	}
		844
		845	sub object_freezer_as_string {
		846	my ($rdata, $objs) = @_;
		847
		848	use Data::Dumper;
		849
		850	$$rdata . Dumper $objs
		851	}
		852
		853	sub object_thawer_load {
		854	my ($filename) = @_;
		855
		856	my ($data, $av);
		857
		858	(aio_load $filename, $data) >= 0
		859	or return;
		860
		861	unless (aio_stat "$filename.pst") {
		862	(aio_load "$filename.pst", $av) >= 0
		863	or return;
		864	$av = eval { (Storable::thaw $av)->{objs} };
		865	}
		866
		867	warn sprintf "loading %s (%d)\n",
		868	$filename, length $data, scalar @{$av || []};#d#
		869	return ($data, $av);
		870	}
576		871
577	#############################################################################	872	#############################################################################
578	# command handling &c	873	# command handling &c
579		874
580	=item cf::register_command $name => \&callback($ob,$args);	875	=item cf::register_command $name => \&callback($ob,$args);
…		…
609	#warn "registering extcmd '$name' to '$caller'";	904	#warn "registering extcmd '$name' to '$caller'";
610		905
611	$EXTCMD{$name} = [$cb, $caller];	906	$EXTCMD{$name} = [$cb, $caller];
612	}	907	}
613		908
614	attach_to_players	909	cf::player->attach (
615	on_command => sub {	910	on_command => sub {
616	my ($pl, $name, $params) = @_;	911	my ($pl, $name, $params) = @_;
617		912
618	my $cb = $COMMAND{$name}	913	my $cb = $COMMAND{$name}
619	or return;	914	or return;
…		…
639	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
640	}	935	}
641		936
642	cf::override;	937	cf::override;
643	},	938	},
644	;	939	);
645		940
646	sub register {	941	sub register {
647	my ($base, $pkg) = @_;	942	my ($base, $pkg) = @_;
648		943
649	#TODO	944	#TODO
…		…
718		1013
719	Symbol::delete_package $pkg;	1014	Symbol::delete_package $pkg;
720	}	1015	}
721		1016
722	sub load_extensions {	1017	sub load_extensions {
723	my $LIBDIR = maps_directory "perl";
724
725	for my $ext (<$LIBDIR/*.ext>) {	1018	for my $ext (<$LIBDIR/*.ext>) {
726	next unless -r $ext;	1019	next unless -r $ext;
727	eval {	1020	eval {
728	load_extension $ext;	1021	load_extension $ext;
729	1	1022	1
…		…
741	defined $path or return;	1034	defined $path or return;
742		1035
743	unlink "$path.pst";	1036	unlink "$path.pst";
744	};	1037	};
745		1038
746	attach_to_maps prio => -10000, package => cf::mapsupport::;	1039	cf::map->attach (prio => -10000, package => cf::mapsupport::);
747		1040
748	#############################################################################	1041	#############################################################################
749	# load/save perl data associated with player->ob objects	1042	# load/save perl data associated with player->ob objects
750		1043
751	sub all_objects(@) {	1044	sub all_objects(@) {
752	@_, map all_objects ($_->inv), @_	1045	@_, map all_objects ($_->inv), @_
753	}	1046	}
754		1047
755	# TODO: compatibility cruft, remove when no longer needed	1048	# TODO: compatibility cruft, remove when no longer needed
756	attach_to_players	1049	cf::player->attach (
757	on_load => sub {	1050	on_load => sub {
758	my ($pl, $path) = @_;	1051	my ($pl, $path) = @_;
759		1052
760	for my $o (all_objects $pl->ob) {	1053	for my $o (all_objects $pl->ob) {
761	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1054	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
763		1056
764	%$o = %{ Storable::thaw pack "H*", $value };	1057	%$o = %{ Storable::thaw pack "H*", $value };
765	}	1058	}
766	}	1059	}
767	},	1060	},
768	;	1061	);
769		1062
770	#############################################################################	1063	#############################################################################
771		1064
772	=head2 CORE EXTENSIONS	1065	=head2 CORE EXTENSIONS
773		1066
774	Functions and methods that extend core crossfire objects.	1067	Functions and methods that extend core crossfire objects.
		1068
		1069	=head3 cf::player
775		1070
776	=over 4	1071	=over 4
777		1072
778	=item cf::player::exists $login	1073	=item cf::player::exists $login
779		1074
…		…
784	sub cf::player::exists($) {	1079	sub cf::player::exists($) {
785	cf::player::find $_[0]	1080	cf::player::find $_[0]
786	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1081	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
787	}	1082	}
788		1083
		1084	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1085
		1086	Sends an ext reply to the player.
		1087
		1088	=cut
		1089
		1090	sub cf::player::ext_reply($$$%) {
		1091	my ($self, $id, %msg) = @_;
		1092
		1093	$msg{msgid} = $id;
		1094
		1095	$self->send ("ext " . to_json \%msg);
		1096	}
		1097
		1098	=back
		1099
		1100
		1101	=head3 cf::map
		1102
		1103	=over 4
		1104
		1105	=cut
		1106
		1107	package cf::map;
		1108
		1109	use Fcntl;
		1110	use Coro::AIO;
		1111
		1112	our $MAX_RESET = 3600;
		1113	our $DEFAULT_RESET = 3000;
		1114
		1115	sub generate_random_map {
		1116	my ($path, $rmp) = @_;
		1117
		1118	# mit "rum" bekleckern, nicht
		1119	cf::map::_create_random_map
		1120	$path,
		1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1124	$rmp->{exit_on_final_map},
		1125	$rmp->{xsize}, $rmp->{ysize},
		1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1129	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1131	(cf::region::find $rmp->{region})
		1132	}
		1133
		1134	# and all this just because we cannot iterate over
		1135	# all maps in C++...
		1136	sub change_all_map_light {
		1137	my ($change) = @_;
		1138
		1139	$_->change_map_light ($change)
		1140	for grep $_->outdoor, values %cf::MAP;
		1141	}
		1142
		1143	sub try_load_header($) {
		1144	my ($path) = @_;
		1145
		1146	utf8::encode $path;
		1147	aio_open $path, O_RDONLY, 0
		1148	or return;
		1149
		1150	my $map = cf::map::new
		1151	or return;
		1152
		1153	# for better error messages only, will be overwritten
		1154	$map->path ($path);
		1155
		1156	$map->load_header ($path)
		1157	or return;
		1158
		1159	$map->{load_path} = $path;
		1160
		1161	$map
		1162	}
		1163
		1164	sub find;
		1165	sub find {
		1166	my ($path, $origin) = @_;
		1167
		1168	#warn "find<$path,$origin>\n";#d#
		1169
		1170	$path = new cf::path $path, $origin && $origin->path;
		1171	my $key = $path->as_string;
		1172
		1173	cf::lock_wait "map_find:$key";
		1174
		1175	$cf::MAP{$key} || do {
		1176	my $guard = cf::lock_acquire "map_find:$key";
		1177
		1178	# do it the slow way
		1179	my $map = try_load_header $path->save_path;
		1180
		1181	Coro::cede;
		1182
		1183	if ($map) {
		1184	$map->last_access ((delete $map->{last_access})
		1185	|| $cf::RUNTIME); #d#
		1186	# safety
		1187	$map->{instantiate_time} = $cf::RUNTIME
		1188	if $map->{instantiate_time} > $cf::RUNTIME;
		1189	} else {
		1190	if (my $rmp = $path->random_map_params) {
		1191	$map = generate_random_map $key, $rmp;
		1192	} else {
		1193	$map = try_load_header $path->load_path;
		1194	}
		1195
		1196	$map or return;
		1197
		1198	$map->{load_original} = 1;
		1199	$map->{instantiate_time} = $cf::RUNTIME;
		1200	$map->last_access ($cf::RUNTIME);
		1201	$map->instantiate;
		1202
		1203	# per-player maps become, after loading, normal maps
		1204	$map->per_player (0) if $path->{user_rel};
		1205	}
		1206
		1207	$map->path ($key);
		1208	$map->{path} = $path;
		1209	$map->{last_save} = $cf::RUNTIME;
		1210
		1211	Coro::cede;
		1212
		1213	if ($map->should_reset) {
		1214	$map->reset;
		1215	undef $guard;
		1216	$map = find $path
		1217	or return;
		1218	}
		1219
		1220	$cf::MAP{$key} = $map
		1221	}
		1222	}
		1223
		1224	sub load {
		1225	my ($self) = @_;
		1226
		1227	my $path = $self->{path};
		1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1229
		1230	return if $self->in_memory != cf::MAP_SWAPPED;
		1231
		1232	$self->in_memory (cf::MAP_LOADING);
		1233
		1234	$self->alloc;
		1235	$self->load_objects ($self->{load_path}, 1)
		1236	or return;
		1237
		1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1239	if delete $self->{load_original};
		1240
		1241	if (my $uniq = $path->uniq_path) {
		1242	utf8::encode $uniq;
		1243	if (aio_open $uniq, O_RDONLY, 0) {
		1244	$self->clear_unique_items;
		1245	$self->load_objects ($uniq, 0);
		1246	}
		1247	}
		1248
		1249	Coro::cede;
		1250
		1251	# now do the right thing for maps
		1252	$self->link_multipart_objects;
		1253
		1254	if ($self->{path}->is_style_map) {
		1255	$self->{deny_save} = 1;
		1256	$self->{deny_reset} = 1;
		1257	} else {
		1258	$self->fix_auto_apply;
		1259	$self->decay_objects;
		1260	$self->update_buttons;
		1261	$self->set_darkness_map;
		1262	$self->difficulty ($self->estimate_difficulty)
		1263	unless $self->difficulty;
		1264	$self->activate;
		1265	}
		1266
		1267	Coro::cede;
		1268
		1269	$self->in_memory (cf::MAP_IN_MEMORY);
		1270	}
		1271
		1272	sub find_sync {
		1273	my ($path, $origin) = @_;
		1274
		1275	cf::sync_job {
		1276	my $map = cf::map::find $path, $origin;
		1277	$map
		1278	}
		1279	}
		1280
		1281	sub do_load_sync {
		1282	my ($map) = @_;
		1283
		1284	cf::sync_job { $map->load };
		1285	}
		1286
		1287	sub save {
		1288	my ($self) = @_;
		1289
		1290	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1291
		1292	$self->{last_save} = $cf::RUNTIME;
		1293
		1294	return unless $self->dirty;
		1295
		1296	my $save = $self->{path}->save_path; utf8::encode $save;
		1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1298
		1299	$self->{load_path} = $save;
		1300
		1301	return if $self->{deny_save};
		1302
		1303	local $self->{last_access} = $self->last_access;#d#
		1304
		1305	if ($uniq) {
		1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1307	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1308	} else {
		1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1310	}
		1311	}
		1312
		1313	sub swap_out {
		1314	my ($self) = @_;
		1315
		1316	# save first because save cedes
		1317	$self->save;
		1318
		1319	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1320
		1321	return if $self->players;
		1322	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1323	return if $self->{deny_save};
		1324
		1325	$self->clear;
		1326	$self->in_memory (cf::MAP_SWAPPED);
		1327	}
		1328
		1329	sub reset_at {
		1330	my ($self) = @_;
		1331
		1332	# TODO: safety, remove and allow resettable per-player maps
		1333	return 1e99 if $self->{path}{user_rel};
		1334	return 1e99 if $self->{deny_reset};
		1335
		1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1338
		1339	$time + $to
		1340	}
		1341
		1342	sub should_reset {
		1343	my ($self) = @_;
		1344
		1345	$self->reset_at <= $cf::RUNTIME
		1346	}
		1347
		1348	sub unlink_save {
		1349	my ($self) = @_;
		1350
		1351	utf8::encode (my $save = $self->{path}->save_path);
		1352	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1353	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1354	}
		1355
		1356	sub rename {
		1357	my ($self, $new_path) = @_;
		1358
		1359	$self->unlink_save;
		1360
		1361	delete $cf::MAP{$self->path};
		1362	$self->{path} = new cf::path $new_path;
		1363	$self->path ($self->{path}->as_string);
		1364	$cf::MAP{$self->path} = $self;
		1365
		1366	$self->save;
		1367	}
		1368
		1369	sub reset {
		1370	my ($self) = @_;
		1371
		1372	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1373
		1374	return if $self->players;
		1375	return if $self->{path}{user_rel};#d#
		1376
		1377	warn "resetting map ", $self->path;#d#
		1378
		1379	delete $cf::MAP{$self->path};
		1380
		1381	$_->clear_links_to ($self) for values %cf::MAP;
		1382
		1383	$self->unlink_save;
		1384	$self->destroy;
		1385	}
		1386
		1387	my $nuke_counter = "aaaa";
		1388
		1389	sub nuke {
		1390	my ($self) = @_;
		1391
		1392	$self->{deny_save} = 1;
		1393	$self->reset_timeout (1);
		1394	$self->rename ("{nuke}/" . ($nuke_counter++));
		1395	$self->reset; # polite request, might not happen
		1396	}
		1397
		1398	sub customise_for {
		1399	my ($map, $ob) = @_;
		1400
		1401	if ($map->per_player) {
		1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1403	}
		1404
		1405	$map
		1406	}
		1407
		1408	sub emergency_save {
		1409	my $freeze_guard = cf::freeze_mainloop;
		1410
		1411	warn "enter emergency map save\n";
		1412
		1413	cf::sync_job {
		1414	warn "begin emergency map save\n";
		1415	$_->save for values %cf::MAP;
		1416	};
		1417
		1418	warn "end emergency map save\n";
		1419	}
		1420
		1421	package cf;
		1422
		1423	=back
		1424
		1425
		1426	=head3 cf::object::player
		1427
		1428	=over 4
		1429
789	=item $player_object->reply ($npc, $msg[, $flags])	1430	=item $player_object->reply ($npc, $msg[, $flags])
790		1431
791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1432	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	1433	can be C<undef>. Does the right thing when the player is currently in a
793	dialogue with the given NPC character.	1434	dialogue with the given NPC character.
794		1435
795	=cut	1436	=cut
796		1437
797	# rough implementation of a future "reply" method that works	1438	# rough implementation of a future "reply" method that works
798	# with dialog boxes.	1439	# with dialog boxes.
		1440	#TODO: the first argument must go, split into a $npc->reply_to ( method
799	sub cf::object::player::reply($$$;$) {	1441	sub cf::object::player::reply($$$;$) {
800	my ($self, $npc, $msg, $flags) = @_;	1442	my ($self, $npc, $msg, $flags) = @_;
801		1443
802	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
803		1445
…		…
807	$msg = $npc->name . " says: $msg" if $npc;	1449	$msg = $npc->name . " says: $msg" if $npc;
808	$self->message ($msg, $flags);	1450	$self->message ($msg, $flags);
809	}	1451	}
810	}	1452	}
811		1453
812	=item $player->ext_reply ($msgid, $msgtype, %msg)
813
814	Sends an ext reply to the player.
815
816	=cut
817
818	sub cf::player::ext_reply($$$%) {
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")	1454	=item $player_object->may ("access")
827		1455
828	Returns wether the given player is authorized to access resource "access"	1456	Returns wether the given player is authorized to access resource "access"
829	(e.g. "command_wizcast").	1457	(e.g. "command_wizcast").
830		1458
…		…
837	(ref $cf::CFG{"may_$access"}	1465	(ref $cf::CFG{"may_$access"}
838	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1466	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
839	: $cf::CFG{"may_$access"})	1467	: $cf::CFG{"may_$access"})
840	}	1468	}
841		1469
842	=cut	1470	=item $player_object->enter_link
843		1471
844	#############################################################################	1472	Freezes the player and moves him/her to a special map (C<{link}>).
		1473
		1474	The player should be reaosnably safe there for short amounts of time. You
		1475	I<MUST> call C<leave_link> as soon as possible, though.
		1476
		1477	=item $player_object->leave_link ($map, $x, $y)
		1478
		1479	Moves the player out of the specila link map onto the given map. If the
		1480	map is not valid (or omitted), the player will be moved back to the
		1481	location he/she was before the call to C<enter_link>, or, if that fails,
		1482	to the emergency map position.
		1483
		1484	Might block.
		1485
		1486	=cut
		1487
		1488	sub cf::object::player::enter_link {
		1489	my ($self) = @_;
		1490
		1491	$self->deactivate_recursive;
		1492
		1493	return if $self->map == $LINK_MAP;
		1494
		1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1496	if $self->map;
		1497
		1498	$self->enter_map ($LINK_MAP, 20, 20);
		1499	}
		1500
		1501	sub cf::object::player::leave_link {
		1502	my ($self, $map, $x, $y) = @_;
		1503
		1504	my $link_pos = delete $self->{_link_pos};
		1505
		1506	unless ($map) {
		1507	# restore original map position
		1508	($map, $x, $y) = @{ $link_pos || [] };
		1509	$map = cf::map::find $map;
		1510
		1511	unless ($map) {
		1512	($map, $x, $y) = @$EMERGENCY_POSITION;
		1513	$map = cf::map::find $map
		1514	or die "FATAL: cannot load emergency map\n";
		1515	}
		1516	}
		1517
		1518	($x, $y) = (-1, -1)
		1519	unless (defined $x) && (defined $y);
		1520
		1521	# use -1 or undef as default coordinates, not 0, 0
		1522	($x, $y) = ($map->enter_x, $map->enter_y)
		1523	if $x <=0 && $y <= 0;
		1524
		1525	$map->load;
		1526
		1527	$self->activate_recursive;
		1528	$self->enter_map ($map, $x, $y);
		1529	}
		1530
		1531	cf::player->attach (
		1532	on_logout => sub {
		1533	my ($pl) = @_;
		1534
		1535	# abort map switching before logout
		1536	if ($pl->ob->{_link_pos}) {
		1537	cf::sync_job {
		1538	$pl->ob->leave_link
		1539	};
		1540	}
		1541	},
		1542	on_login => sub {
		1543	my ($pl) = @_;
		1544
		1545	# try to abort aborted map switching on player login :)
		1546	# should happen only on crashes
		1547	if ($pl->ob->{_link_pos}) {
		1548
		1549	$pl->ob->enter_link;
		1550	(Coro::async_pool {
		1551	# we need this sleep as the login has a concurrent enter_exit running
		1552	# and this sleep increases chances of the player not ending up in scorn
		1553	Coro::Timer::sleep 1;
		1554	$pl->ob->leave_link;
		1555	})->prio (2);
		1556	}
		1557	},
		1558	);
		1559
		1560	=item $player_object->goto ($path, $x, $y)
		1561
		1562	=cut
		1563
		1564	sub cf::object::player::goto {
		1565	my ($self, $path, $x, $y) = @_;
		1566
		1567	$self->enter_link;
		1568
		1569	(Coro::async_pool {
		1570	$path = new cf::path $path;
		1571
		1572	my $map = cf::map::find $path->as_string;
		1573	$map = $map->customise_for ($self) if $map;
		1574
		1575	# warn "entering ", $map->path, " at ($x, $y)\n"
		1576	# if $map;
		1577
		1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1579
		1580	$self->leave_link ($map, $x, $y);
		1581	})->prio (1);
		1582	}
		1583
		1584	=item $player_object->enter_exit ($exit_object)
		1585
		1586	=cut
		1587
		1588	sub parse_random_map_params {
		1589	my ($spec) = @_;
		1590
		1591	my $rmp = { # defaults
		1592	xsize => 10,
		1593	ysize => 10,
		1594	};
		1595
		1596	for (split /\n/, $spec) {
		1597	my ($k, $v) = split /\s+/, $_, 2;
		1598
		1599	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1600	}
		1601
		1602	$rmp
		1603	}
		1604
		1605	sub prepare_random_map {
		1606	my ($exit) = @_;
		1607
		1608	# all this does is basically replace the /! path by
		1609	# a new random map path (?random/...) with a seed
		1610	# that depends on the exit object
		1611
		1612	my $rmp = parse_random_map_params $exit->msg;
		1613
		1614	if ($exit->map) {
		1615	$rmp->{region} = $exit->map->region_name;
		1616	$rmp->{origin_map} = $exit->map->path;
		1617	$rmp->{origin_x} = $exit->x;
		1618	$rmp->{origin_y} = $exit->y;
		1619	}
		1620
		1621	$rmp->{random_seed} ||= $exit->random_seed;
		1622
		1623	my $data = cf::to_json $rmp;
		1624	my $md5 = Digest::MD5::md5_hex $data;
		1625
		1626	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1627	aio_write $fh, 0, (length $data), $data, 0;
		1628
		1629	$exit->slaying ("?random/$md5");
		1630	$exit->msg (undef);
		1631	}
		1632	}
		1633
		1634	sub cf::object::player::enter_exit {
		1635	my ($self, $exit) = @_;
		1636
		1637	return unless $self->type == cf::PLAYER;
		1638
		1639	$self->enter_link;
		1640
		1641	(Coro::async_pool {
		1642	$self->deactivate_recursive; # just to be sure
		1643	unless (eval {
		1644	prepare_random_map $exit
		1645	if $exit->slaying eq "/!";
		1646
		1647	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1648	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1649
		1650	1;
		1651	}) {
		1652	$self->message ("Something went wrong deep within the crossfire server. "
		1653	. "I'll try to bring you back to the map you were before. "
		1654	. "Please report this to the dungeon master",
		1655	cf::NDI_UNIQUE | cf::NDI_RED);
		1656
		1657	warn "ERROR in enter_exit: $@";
		1658	$self->leave_link;
		1659	}
		1660	})->prio (1);
		1661	}
		1662
		1663	=head3 cf::client
		1664
		1665	=over 4
		1666
		1667	=item $client->send_drawinfo ($text, $flags)
		1668
		1669	Sends a drawinfo packet to the client. Circumvents output buffering so
		1670	should not be used under normal circumstances.
		1671
		1672	=cut
		1673
		1674	sub cf::client::send_drawinfo {
		1675	my ($self, $text, $flags) = @_;
		1676
		1677	utf8::encode $text;
		1678	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1679	}
		1680
		1681
		1682	=item $success = $client->query ($flags, "text", \&cb)
		1683
		1684	Queues a query to the client, calling the given callback with
		1685	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1686	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1687
		1688	Queries can fail, so check the return code. Or don't, as queries will become
		1689	reliable at some point in the future.
		1690
		1691	=cut
		1692
		1693	sub cf::client::query {
		1694	my ($self, $flags, $text, $cb) = @_;
		1695
		1696	return unless $self->state == ST_PLAYING
		1697	|| $self->state == ST_SETUP
		1698	|| $self->state == ST_CUSTOM;
		1699
		1700	$self->state (ST_CUSTOM);
		1701
		1702	utf8::encode $text;
		1703	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1704
		1705	$self->send_packet ($self->{query_queue}[0][0])
		1706	if @{ $self->{query_queue} } == 1;
		1707	}
		1708
		1709	cf::client->attach (
		1710	on_reply => sub {
		1711	my ($ns, $msg) = @_;
		1712
		1713	# this weird shuffling is so that direct followup queries
		1714	# get handled first
		1715	my $queue = delete $ns->{query_queue}
		1716	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1717
		1718	(shift @$queue)->[1]->($msg);
		1719
		1720	push @{ $ns->{query_queue} }, @$queue;
		1721
		1722	if (@{ $ns->{query_queue} } == @$queue) {
		1723	if (@$queue) {
		1724	$ns->send_packet ($ns->{query_queue}[0][0]);
		1725	} else {
		1726	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1727	}
		1728	}
		1729	},
		1730	);
		1731
		1732	=item $client->coro (\&cb)
		1733
		1734	Create a new coroutine, running the specified callback. The coroutine will
		1735	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1736	or loss of connection).
		1737
		1738	=cut
		1739
		1740	sub cf::client::coro {
		1741	my ($self, $cb) = @_;
		1742
		1743	my $coro = &Coro::async_pool ($cb);
		1744
		1745	$coro->on_destroy (sub {
		1746	delete $self->{_coro}{$coro+0};
		1747	});
		1748
		1749	$self->{_coro}{$coro+0} = $coro;
		1750
		1751	$coro
		1752	}
		1753
		1754	cf::client->attach (
		1755	on_destroy => sub {
		1756	my ($ns) = @_;
		1757
		1758	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1759	},
		1760	);
		1761
		1762	=back
		1763
845		1764
846	=head2 SAFE SCRIPTING	1765	=head2 SAFE SCRIPTING
847		1766
848	Functions that provide a safe environment to compile and execute	1767	Functions that provide a safe environment to compile and execute
849	snippets of perl code without them endangering the safety of the server	1768	snippets of perl code without them endangering the safety of the server
…		…
864		1783
865	=pod	1784	=pod
866		1785
867	The following fucntions and emthods are available within a safe environment:	1786	The following fucntions and emthods are available within a safe environment:
868		1787
869	cf::object contr pay_amount pay_player	1788	cf::object contr pay_amount pay_player map
870	cf::object::player player	1789	cf::object::player player
871	cf::player peaceful	1790	cf::player peaceful
		1791	cf::map trigger
872		1792
873	=cut	1793	=cut
874		1794
875	for (	1795	for (
876	["cf::object" => qw(contr pay_amount pay_player)],	1796	["cf::object" => qw(contr pay_amount pay_player map)],
877	["cf::object::player" => qw(player)],	1797	["cf::object::player" => qw(player)],
878	["cf::player" => qw(peaceful)],	1798	["cf::player" => qw(peaceful)],
		1799	["cf::map" => qw(trigger)],
879	) {	1800	) {
880	no strict 'refs';	1801	no strict 'refs';
881	my ($pkg, @funs) = @$_;	1802	my ($pkg, @funs) = @$_;
882	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1803	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
883	for @funs;	1804	for @funs;
…		…
999		1920
1000	{	1921	{
1001	my $path = cf::localdir . "/database.pst";	1922	my $path = cf::localdir . "/database.pst";
1002		1923
1003	sub db_load() {	1924	sub db_load() {
1004	warn "loading database $path\n";#d# remove later
1005	$DB = stat $path ? Storable::retrieve $path : { };	1925	$DB = stat $path ? Storable::retrieve $path : { };
1006	}	1926	}
1007		1927
1008	my $pid;	1928	my $pid;
1009		1929
1010	sub db_save() {	1930	sub db_save() {
1011	warn "saving database $path\n";#d# remove later
1012	waitpid $pid, 0 if $pid;	1931	waitpid $pid, 0 if $pid;
1013	if (0 == ($pid = fork)) {	1932	if (0 == ($pid = fork)) {
1014	$DB->{_meta}{version} = 1;	1933	$DB->{_meta}{version} = 1;
1015	Storable::nstore $DB, "$path~";	1934	Storable::nstore $DB, "$path~";
1016	rename "$path~", $path;	1935	rename "$path~", $path;
…		…
1023	sub db_sync() {	1942	sub db_sync() {
1024	db_save if $dirty;	1943	db_save if $dirty;
1025	undef $dirty;	1944	undef $dirty;
1026	}	1945	}
1027		1946
1028	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1947	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1029	db_sync;	1948	db_sync;
1030	});	1949	});
1031		1950
1032	sub db_dirty() {	1951	sub db_dirty() {
1033	$dirty = 1;	1952	$dirty = 1;
…		…
1047	$DB->{$_[0]} = $_[1];	1966	$DB->{$_[0]} = $_[1];
1048	}	1967	}
1049	db_dirty;	1968	db_dirty;
1050	}	1969	}
1051		1970
1052	attach_global	1971	cf::global->attach (
1053	prio => 10000,	1972	prio => 10000,
1054	on_cleanup => sub {	1973	on_cleanup => sub {
1055	db_sync;	1974	db_sync;
1056	},	1975	},
1057	;	1976	);
1058	}	1977	}
1059		1978
1060	#############################################################################	1979	#############################################################################
1061	# the server's main()	1980	# the server's main()
1062		1981
…		…
1064	open my $fh, "<:utf8", cf::confdir . "/config"	1983	open my $fh, "<:utf8", cf::confdir . "/config"
1065	or return;	1984	or return;
1066		1985
1067	local $/;	1986	local $/;
1068	*CFG = YAML::Syck::Load <$fh>;	1987	*CFG = YAML::Syck::Load <$fh>;
		1988
		1989	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		1990
		1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		1992	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		1993
		1994	if (exists $CFG{mlockall}) {
		1995	eval {
		1996	$CFG{mlockall} ? &mlockall : &munlockall
		1997	and die "WARNING: m(un)lockall failed: $!\n";
		1998	};
		1999	warn $@ if $@;
		2000	}
1069	}	2001	}
1070		2002
1071	sub main {	2003	sub main {
		2004	# we must not ever block the main coroutine
		2005	local $Coro::idle = sub {
		2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2007	Coro::async_pool { Event::one_event };
		2008	};
		2009
1072	cfg_load;	2010	cfg_load;
1073	db_load;	2011	db_load;
1074	load_extensions;	2012	load_extensions;
1075	Event::loop;	2013	Event::loop;
1076	}	2014	}
1077		2015
1078	#############################################################################	2016	#############################################################################
1079	# initialisation	2017	# initialisation
1080		2018
1081	sub _perl_reload(&) {	2019	sub reload() {
1082	my ($msg) = @_;	2020	# can/must only be called in main
		2021	if ($Coro::current != $Coro::main) {
		2022	warn "can only reload from main coroutine\n";
		2023	return;
		2024	}
1083		2025
1084	$msg->("reloading...");	2026	warn "reloading...";
		2027
		2028	my $guard = freeze_mainloop;
		2029	cf::emergency_save;
1085		2030
1086	eval {	2031	eval {
		2032	# if anything goes wrong in here, we should simply crash as we already saved
		2033
1087	# cancel all watchers	2034	# cancel all watchers
1088	$_->cancel for Event::all_watchers;	2035	for (Event::all_watchers) {
		2036	$_->cancel if $_->data & WF_AUTOCANCEL;
		2037	}
		2038
		2039	# cancel all extension coros
		2040	$_->cancel for values %EXT_CORO;
		2041	%EXT_CORO = ();
1089		2042
1090	# unload all extensions	2043	# unload all extensions
1091	for (@exts) {	2044	for (@exts) {
1092	$msg->("unloading <$_>");	2045	warn "unloading <$_>";
1093	unload_extension $_;	2046	unload_extension $_;
1094	}	2047	}
1095		2048
1096	# unload all modules loaded from $LIBDIR	2049	# unload all modules loaded from $LIBDIR
1097	while (my ($k, $v) = each %INC) {	2050	while (my ($k, $v) = each %INC) {
1098	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1099		2052
1100	$msg->("removing <$k>");	2053	warn "removing <$k>";
1101	delete $INC{$k};	2054	delete $INC{$k};
1102		2055
1103	$k =~ s/\.pm$//;	2056	$k =~ s/\.pm$//;
1104	$k =~ s/\//::/g;	2057	$k =~ s/\//::/g;
1105		2058
…		…
1110	Symbol::delete_package $k;	2063	Symbol::delete_package $k;
1111	}	2064	}
1112		2065
1113	# sync database to disk	2066	# sync database to disk
1114	cf::db_sync;	2067	cf::db_sync;
		2068	IO::AIO::flush;
1115		2069
1116	# get rid of safe::, as good as possible	2070	# get rid of safe::, as good as possible
1117	Symbol::delete_package "safe::$_"	2071	Symbol::delete_package "safe::$_"
1118	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1119		2073
1120	# remove register_script_function callbacks	2074	# remove register_script_function callbacks
1121	# TODO	2075	# TODO
1122		2076
1123	# unload cf.pm "a bit"	2077	# unload cf.pm "a bit"
…		…
1126	# don't, removes xs symbols, too,	2080	# don't, removes xs symbols, too,
1127	# and global variables created in xs	2081	# and global variables created in xs
1128	#Symbol::delete_package __PACKAGE__;	2082	#Symbol::delete_package __PACKAGE__;
1129		2083
1130	# reload cf.pm	2084	# reload cf.pm
1131	$msg->("reloading cf.pm");	2085	warn "reloading cf.pm";
1132	require cf;	2086	require cf;
		2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1133		2088
1134	# load config and database again	2089	# load config and database again
1135	cf::cfg_load;	2090	cf::cfg_load;
1136	cf::db_load;	2091	cf::db_load;
1137		2092
1138	# load extensions	2093	# load extensions
1139	$msg->("load extensions");	2094	warn "load extensions";
1140	cf::load_extensions;	2095	cf::load_extensions;
1141		2096
1142	# reattach attachments to objects	2097	# reattach attachments to objects
1143	$msg->("reattach");	2098	warn "reattach";
1144	_global_reattach;	2099	_global_reattach;
1145	};	2100	};
1146	$msg->($@) if $@;
1147		2101
1148	$msg->("reloaded");	2102	if ($@) {
		2103	warn $@;
		2104	warn "error while reloading, exiting.";
		2105	exit 1;
		2106	}
		2107
		2108	warn "reloaded successfully";
1149	};	2109	};
1150		2110
1151	sub perl_reload() {	2111	#############################################################################
1152	_perl_reload {	2112
1153	warn $_[0];	2113	unless ($LINK_MAP) {
1154	print "$_[0]\n";	2114	$LINK_MAP = cf::map::new;
1155	};	2115
		2116	$LINK_MAP->width (41);
		2117	$LINK_MAP->height (41);
		2118	$LINK_MAP->alloc;
		2119	$LINK_MAP->path ("{link}");
		2120	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2121	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2122
		2123	# dirty hack because... archetypes are not yet loaded
		2124	Event->timer (
		2125	after => 2,
		2126	cb => sub {
		2127	$_[0]->w->cancel;
		2128
		2129	# provide some exits "home"
		2130	my $exit = cf::object::new "exit";
		2131
		2132	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2133	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2134	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2135
		2136	$LINK_MAP->insert ($exit->clone, 19, 19);
		2137	$LINK_MAP->insert ($exit->clone, 19, 20);
		2138	$LINK_MAP->insert ($exit->clone, 19, 21);
		2139	$LINK_MAP->insert ($exit->clone, 20, 19);
		2140	$LINK_MAP->insert ($exit->clone, 20, 21);
		2141	$LINK_MAP->insert ($exit->clone, 21, 19);
		2142	$LINK_MAP->insert ($exit->clone, 21, 20);
		2143	$LINK_MAP->insert ($exit->clone, 21, 21);
		2144
		2145	$exit->destroy;
		2146	});
		2147
		2148	$LINK_MAP->{deny_save} = 1;
		2149	$LINK_MAP->{deny_reset} = 1;
		2150
		2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1156	}	2152	}
1157		2153
1158	register "<global>", __PACKAGE__;	2154	register "<global>", __PACKAGE__;
1159		2155
1160	register_command "perl-reload" => sub {	2156	register_command "reload" => sub {
1161	my ($who, $arg) = @_;	2157	my ($who, $arg) = @_;
1162		2158
1163	if ($who->flag (FLAG_WIZ)) {	2159	if ($who->flag (FLAG_WIZ)) {
1164	_perl_reload {	2160	$who->message ("start of reload.");
1165	warn $_[0];	2161	reload;
1166	$who->message ($_[0]);	2162	$who->message ("end of reload.");
1167	};
1168	}	2163	}
1169	};	2164	};
1170		2165
1171	unshift @INC, $LIBDIR;	2166	unshift @INC, $LIBDIR;
1172		2167
1173	$TICK_WATCHER = Event->timer (	2168	$TICK_WATCHER = Event->timer (
		2169	reentrant => 0,
1174	prio => 1,	2170	prio => 0,
1175	async => 1,
1176	at => $NEXT_TICK || 1,	2171	at => $NEXT_TICK || $TICK,
		2172	data => WF_AUTOCANCEL,
1177	cb => sub {	2173	cb => sub {
1178	cf::server_tick; # one server iteration	2174	cf::server_tick; # one server iteration
1179		2175	$RUNTIME += $TICK;
1180	my $NOW = Event::time;
1181	$NEXT_TICK += $TICK;	2176	$NEXT_TICK += $TICK;
1182		2177
1183	# if we are delayed by four ticks or more, skip them all	2178	# if we are delayed by four ticks or more, skip them all
1184	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1185		2180
1186	$TICK_WATCHER->at ($NEXT_TICK);	2181	$TICK_WATCHER->at ($NEXT_TICK);
1187	$TICK_WATCHER->start;	2182	$TICK_WATCHER->start;
1188	},	2183	},
1189	);	2184	);
1190		2185
1191	IO::AIO::max_poll_time $TICK * 0.2;	2186	IO::AIO::max_poll_time $TICK * 0.2;
1192		2187
		2188	Event->io (
1193	Event->io (fd => IO::AIO::poll_fileno,	2189	fd => IO::AIO::poll_fileno,
1194	poll => 'r',	2190	poll => 'r',
1195	prio => 5,	2191	prio => 5,
		2192	data => WF_AUTOCANCEL,
1196	cb => \&IO::AIO::poll_cb);	2193	cb => \&IO::AIO::poll_cb,
		2194	);
		2195
		2196	Event->timer (
		2197	data => WF_AUTOCANCEL,
		2198	after => 0,
		2199	interval => 10,
		2200	cb => sub {
		2201	(Coro::unblock_sub {
		2202	write_runtime
		2203	or warn "ERROR: unable to write runtime file: $!";
		2204	})->();
		2205	},
		2206	);
		2207
		2208	END { cf::emergency_save }
1197		2209
1198	1	2210	1
1199		2211

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