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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.83 by root, Mon Dec 11 01:30:41 2006 UTC vs.
Revision 1.116 by root, Mon Jan 1 17:30:34 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Digest::MD5;
		21	use Fcntl;
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
20		32
21	_init_vars;	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		34
23	our %COMMAND = ();	35	our %COMMAND = ();
		36	our %COMMAND_TIME = ();
		37	our %EXTCMD = ();
		38
24	our @EVENT;	39	our @EVENT;
25	our $LIBDIR = maps_directory "perl";	40	our $LIBDIR = datadir . "/ext";
26		41
27	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
28	our $TICK_WATCHER;	43	our $TICK_WATCHER;
29	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
30		46
31	our %CFG;	47	our %CFG;
32		48
33	our $uptime;#d#	49	our $UPTIME; $UPTIME ||= time;
34	our $UPTIME;	50	our $RUNTIME;
35	$UPTIME ||= $uptime;#d#	51
36	$UPTIME ||= time;	52	our %MAP; # all maps
		53	our $LINK_MAP; # the special {link} map
		54	our $FREEZE;
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO;
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		63	open my $fh, "<", cf::localdir . "/runtime"
		64	or die "unable to read runtime file: $!";
		65	$RUNTIME = <$fh> + 0.;
		66	}
		67
		68	mkdir cf::localdir;
		69	mkdir cf::localdir . "/" . cf::playerdir;
		70	mkdir cf::localdir . "/" . cf::tmpdir;
		71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
		73
		74	# a special map that is always available
		75	our $LINK_MAP;
		76
		77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
37		78
38	#############################################################################	79	#############################################################################
39		80
40	=head2 GLOBAL VARIABLES	81	=head2 GLOBAL VARIABLES
41		82
42	=over 4	83	=over 4
43		84
44	=item $cf::UPTIME	85	=item $cf::UPTIME
45		86
46	The timestamp of the server start (so not actually an uptime).	87	The timestamp of the server start (so not actually an uptime).
		88
		89	=item $cf::RUNTIME
		90
		91	The time this server has run, starts at 0 and is increased by $cf::TICK on
		92	every server tick.
47		93
48	=item $cf::LIBDIR	94	=item $cf::LIBDIR
49		95
50	The perl library directory, where extensions and cf-specific modules can	96	The perl library directory, where extensions and cf-specific modules can
51	be found. It will be added to C<@INC> automatically.	97	be found. It will be added to C<@INC> automatically.
		98
		99	=item $cf::NOW
		100
		101	The time of the last (current) server tick.
52		102
53	=item $cf::TICK	103	=item $cf::TICK
54		104
55	The interval between server ticks, in seconds.	105	The interval between server ticks, in seconds.
56		106
…		…
64	=cut	114	=cut
65		115
66	BEGIN {	116	BEGIN {
67	*CORE::GLOBAL::warn = sub {	117	*CORE::GLOBAL::warn = sub {
68	my $msg = join "", @_;	118	my $msg = join "", @_;
		119	utf8::encode $msg;
		120
69	$msg .= "\n"	121	$msg .= "\n"
70	unless $msg =~ /\n$/;	122	unless $msg =~ /\n$/;
71		123
72	print STDERR "cfperl: $msg";
73	LOG llevError, "cfperl: $msg";	124	LOG llevError, "cfperl: $msg";
74	};	125	};
75	}	126	}
76		127
		128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
77	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
78		134
79	# we bless all objects into (empty) derived classes to force a method lookup	135	# we bless all objects into (empty) derived classes to force a method lookup
80	# within the Safe compartment.	136	# within the Safe compartment.
81	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	137	for my $pkg (qw(
		138	cf::global cf::attachable
		139	cf::object cf::object::player
		140	cf::client cf::player
		141	cf::arch cf::living
		142	cf::map cf::party cf::region
		143	)) {
82	no strict 'refs';	144	no strict 'refs';
83	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
84	}	146	}
85		147
86	$Event::DIED = sub {	148	$Event::DIED = sub {
…		…
88	};	150	};
89		151
90	my %ext_pkg;	152	my %ext_pkg;
91	my @exts;	153	my @exts;
92	my @hook;	154	my @hook;
93	my %command;
94	my %extcmd;
95		155
96	=head2 UTILITY FUNCTIONS	156	=head2 UTILITY FUNCTIONS
97		157
98	=over 4	158	=over 4
99		159
…		…
121	sub to_json($) {	181	sub to_json($) {
122	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
123	JSON::Syck::Dump $_[0]	183	JSON::Syck::Dump $_[0]
124	}	184	}
125		185
		186	=item cf::sync_job { BLOCK }
		187
		188	The design of crossfire+ requires that the main coro ($Coro::main) is
		189	always able to handle events or runnable, as crossfire+ is only partly
		190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		191
		192	If it must be done, put the blocking parts into C<sync_job>. This will run
		193	the given BLOCK in another coroutine while waiting for the result. The
		194	server will be frozen during this time, so the block should either finish
		195	fast or be very important.
		196
		197	=cut
		198
		199	sub sync_job(&) {
		200	my ($job) = @_;
		201
		202	if ($Coro::current == $Coro::main) {
		203	# this is the main coro, too bad, we have to block
		204	# till the operation succeeds, freezing the server :/
		205
		206	# TODO: use suspend/resume instead
		207	# (but this is cancel-safe)
		208	local $FREEZE = 1;
		209
		210	my $busy = 1;
		211	my @res;
		212
		213	(Coro::async {
		214	@res = eval { $job->() };
		215	warn $@ if $@;
		216	undef $busy;
		217	})->prio (Coro::PRIO_MAX);
		218
		219	while ($busy) {
		220	Coro::cede_notself;
		221	Event::one_event unless Coro::nready;
		222	}
		223
		224	wantarray ? @res : $res[0]
		225	} else {
		226	# we are in another coroutine, how wonderful, everything just works
		227
		228	$job->()
		229	}
		230	}
		231
		232	=item $coro = cf::coro { BLOCK }
		233
		234	Creates and returns a new coro. This coro is automcatially being canceled
		235	when the extension calling this is being unloaded.
		236
		237	=cut
		238
		239	sub coro(&) {
		240	my $cb = shift;
		241
		242	my $coro; $coro = async {
		243	eval {
		244	$cb->();
		245	};
		246	warn $@ if $@;
		247	};
		248
		249	$coro->on_destroy (sub {
		250	delete $EXT_CORO{$coro+0};
		251	});
		252	$EXT_CORO{$coro+0} = $coro;
		253
		254	$coro
		255	}
		256
		257	sub write_runtime {
		258	my $runtime = cf::localdir . "/runtime";
		259
		260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		261	or return;
		262
		263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		265	and return;
		266
		267	aio_fsync $fh
		268	and return;
		269
		270	close $fh
		271	or return;
		272
		273	aio_rename "$runtime~", $runtime
		274	and return;
		275
		276	1
		277	}
		278
126	=back	279	=back
127		280
128	=cut	281	=cut
129		282
130	#############################################################################	283	#############################################################################
131		284
132	=head2 EVENTS AND OBJECT ATTACHMENTS	285	package cf::path;
		286
		287	sub new {
		288	my ($class, $path, $base) = @_;
		289
		290	$path = $path->as_string if ref $path;
		291
		292	my $self = bless { }, $class;
		293
		294	# {... are special paths that are not touched
		295	# ?xxx/... are special absolute paths
		296	# ?random/... random maps
		297	# /! non-realised random map exit
		298	# /... normal maps
		299	# ~/... per-player maps without a specific player (DO NOT USE)
		300	# ~user/... per-player map of a specific user
		301
		302	if ($path =~ /^{/) {
		303	# fine as it is
		304	} elsif ($path =~ s{^\?random/}{}) {
		305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		306	$self->{random} = cf::from_json $data;
		307	} else {
		308	if ($path =~ s{^~([^/]+)?}{}) {
		309	$self->{user_rel} = 1;
		310
		311	if (defined $1) {
		312	$self->{user} = $1;
		313	} elsif ($base =~ m{^~([^/]+)/}) {
		314	$self->{user} = $1;
		315	} else {
		316	warn "cannot resolve user-relative path without user <$path,$base>\n";
		317	}
		318	} elsif ($path =~ /^\//) {
		319	# already absolute
		320	} else {
		321	$base =~ s{[^/]+/?$}{};
		322	return $class->new ("$base/$path");
		323	}
		324
		325	for ($path) {
		326	redo if s{/\.?/}{/};
		327	redo if s{/[^/]+/\.\./}{/};
		328	}
		329	}
		330
		331	$self->{path} = $path;
		332
		333	$self
		334	}
		335
		336	# the name / primary key / in-game path
		337	sub as_string {
		338	my ($self) = @_;
		339
		340	$self->{user_rel} ? "~$self->{user}$self->{path}"
		341	: $self->{random} ? "?random/$self->{path}"
		342	: $self->{path}
		343	}
		344
		345	# the displayed name, this is a one way mapping
		346	sub visible_name {
		347	my ($self) = @_;
		348
		349	# if (my $rmp = $self->{random}) {
		350	# # todo: be more intelligent about this
		351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		352	# } else {
		353	$self->as_string
		354	# }
		355	}
		356
		357	# escape the /'s in the path
		358	sub _escaped_path {
		359	# ∕ is U+2215
		360	(my $path = $_[0]{path}) =~ s/\//∕/g;
		361	$path
		362	}
		363
		364	# the original (read-only) location
		365	sub load_path {
		366	my ($self) = @_;
		367
		368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		369	}
		370
		371	# the temporary/swap location
		372	sub save_path {
		373	my ($self) = @_;
		374
		375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		378	}
		379
		380	# the unique path, might be eq to save_path
		381	sub uniq_path {
		382	my ($self) = @_;
		383
		384	$self->{user_rel} || $self->{random}
		385	? undef
		386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		387	}
		388
		389	# return random map parameters, or undef
		390	sub random_map_params {
		391	my ($self) = @_;
		392
		393	$self->{random}
		394	}
		395
		396	# this is somewhat ugly, but style maps do need special treatment
		397	sub is_style_map {
		398	$_[0]{path} =~ m{^/styles/}
		399	}
		400
		401	package cf;
		402
		403	#############################################################################
		404
		405	=head2 ATTACHABLE OBJECTS
		406
		407	Many objects in crossfire are so-called attachable objects. That means you can
		408	attach callbacks/event handlers (a collection of which is called an "attachment")
		409	to it. All such attachable objects support the following methods.
		410
		411	In the following description, CLASS can be any of C<global>, C<object>
		412	C<player>, C<client> or C<map> (i.e. the attachable objects in
		413	crossfire+).
133		414
134	=over 4	415	=over 4
135		416
136	=item $object->attach ($attachment, key => $value...)
137
138	=item $object->detach ($attachment)
139
140	Attach/detach a pre-registered attachment to an object.
141
142	=item $player->attach ($attachment, key => $value...)
143
144	=item $player->detach ($attachment)
145
146	Attach/detach a pre-registered attachment to a player.
147
148	=item $map->attach ($attachment, key => $value...)	417	=item $attachable->attach ($attachment, key => $value...)
149		418
150	=item $map->detach ($attachment)	419	=item $attachable->detach ($attachment)
151		420
152	Attach/detach a pre-registered attachment to a map.	421	Attach/detach a pre-registered attachment to a specific object and give it
		422	the specified key/value pairs as arguments.
153		423
154	=item $bool = $object->attached ($name)	424	Example, attach a minesweeper attachment to the given object, making it a
		425	10x10 minesweeper game:
155		426
156	=item $bool = $player->attached ($name)	427	$obj->attach (minesweeper => width => 10, height => 10);
157		428
158	=item $bool = $map->attached ($name)	429	=item $bool = $attachable->attached ($name)
159		430
160	Checks wether the named attachment is currently attached to the object.	431	Checks wether the named attachment is currently attached to the object.
161		432
162	=item cf::attach_global ...	433	=item cf::CLASS->attach ...
163		434
164	Attach handlers for global events.	435	=item cf::CLASS->detach ...
165		436
166	This and all following C<attach_*>-functions expect any number of the	437	Define an anonymous attachment and attach it to all objects of the given
167	following handler/hook descriptions:	438	CLASS. See the next function for an explanation of its arguments.
		439
		440	You can attach to global events by using the C<cf::global> class.
		441
		442	Example, log all player logins:
		443
		444	cf::player->attach (
		445	on_login => sub {
		446	my ($pl) = @_;
		447	...
		448	},
		449	);
		450
		451	Example, attach to the jeweler skill:
		452
		453	cf::object->attach (
		454	type => cf::SKILL,
		455	subtype => cf::SK_JEWELER,
		456	on_use_skill => sub {
		457	my ($sk, $ob, $part, $dir, $msg) = @_;
		458	...
		459	},
		460	);
		461
		462	=item cf::CLASS::attachment $name, ...
		463
		464	Register an attachment by C<$name> through which attachable objects of the
		465	given CLASS can refer to this attachment.
		466
		467	Some classes such as crossfire maps and objects can specify attachments
		468	that are attached at load/instantiate time, thus the need for a name.
		469
		470	These calls expect any number of the following handler/hook descriptions:
168		471
169	=over 4	472	=over 4
170		473
171	=item prio => $number	474	=item prio => $number
172		475
…		…
174	by another C<prio> setting). Lower priority handlers get executed	477	by another C<prio> setting). Lower priority handlers get executed
175	earlier. The default priority is C<0>, and many built-in handlers are	478	earlier. The default priority is C<0>, and many built-in handlers are
176	registered at priority C<-1000>, so lower priorities should not be used	479	registered at priority C<-1000>, so lower priorities should not be used
177	unless you know what you are doing.	480	unless you know what you are doing.
178		481
		482	=item type => $type
		483
		484	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		485	given type of objects only (the additional parameter C<subtype> can be
		486	used to further limit to the given subtype).
		487
179	=item on_I<event> => \&cb	488	=item on_I<event> => \&cb
180		489
181	Call the given code reference whenever the named event happens (event is	490	Call the given code reference whenever the named event happens (event is
182	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	491	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
183	handlers are recognised generally depends on the type of object these	492	handlers are recognised generally depends on the type of object these
…		…
192	package and register them. Only handlers for eevents supported by the	501	package and register them. Only handlers for eevents supported by the
193	object/class are recognised.	502	object/class are recognised.
194		503
195	=back	504	=back
196		505
197	=item cf::attach_to_type $object_type, $subtype, ...	506	Example, define an attachment called "sockpuppet" that calls the given
		507	event handler when a monster attacks:
198		508
199	Attach handlers for a specific object type (e.g. TRANSPORT) and	509	cf::object::attachment sockpuppet =>
200	subtype. If C<$subtype> is zero or undef, matches all objects of the given	510	on_skill_attack => sub {
201	type.	511	my ($self, $victim) = @_;
202		512	...
203	=item cf::attach_to_objects ...
204
205	Attach handlers to all objects. Do not use this except for debugging or
206	very rare events, as handlers are (obviously) called for I<all> objects in
207	the game.
208
209	=item cf::attach_to_players ...
210
211	Attach handlers to all players.
212
213	=item cf::attach_to_maps ...
214
215	Attach handlers to all maps.
216
217	=item cf:register_attachment $name, ...
218
219	Register an attachment by name through which objects can refer to this
220	attachment.
221
222	=item cf:register_player_attachment $name, ...
223
224	Register an attachment by name through which players can refer to this
225	attachment.
226
227	=item cf:register_map_attachment $name, ...
228
229	Register an attachment by name through which maps can refer to this
230	attachment.
231
232	=cut
233
234	# the following variables are defined in .xs and must not be re-created
235	our @CB_GLOBAL = (); # registry for all global events
236	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
237	our @CB_PLAYER = ();
238	our @CB_TYPE = (); # registry for type (cf-object class) based events
239	our @CB_MAP = ();
240
241	my %attachment;
242
243	sub _attach_cb($\%$$$) {
244	my ($registry, $undo, $event, $prio, $cb) = @_;
245
246	use sort 'stable';
247
248	$cb = [$prio, $cb];
249
250	@{$registry->[$event]} = sort
251	{ $a->[0] cmp $b->[0] }
252	@{$registry->[$event] || []}, $cb;
253
254	push @{$undo->{cb}}, [$event, $cb];
255	}
256
257	# attach handles attaching event callbacks
258	# the only thing the caller has to do is pass the correct
259	# registry (== where the callback attaches to).
260	sub _attach(\@$@) {
261	my ($registry, $klass, @arg) = @_;
262
263	my $prio = 0;
264
265	my %undo = (
266	registry => $registry,
267	cb => [],
268	);
269
270	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
271
272	while (@arg) {
273	my $type = shift @arg;
274
275	if ($type eq "prio") {
276	$prio = shift @arg;
277
278	} elsif ($type eq "package") {
279	my $pkg = shift @arg;
280
281	while (my ($name, $id) = each %cb_id) {
282	if (my $cb = $pkg->can ($name)) {
283	_attach_cb $registry, %undo, $id, $prio, $cb;
284	}
285	}	513	}
286
287	} elsif (exists $cb_id{$type}) {
288	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
289
290	} elsif (ref $type) {
291	warn "attaching objects not supported, ignoring.\n";
292
293	} else {
294	shift @arg;
295	warn "attach argument '$type' not supported, ignoring.\n";
296	}
297	}
298
299	\%undo
300	}
301
302	sub _attach_attachment {
303	my ($obj, $name, %arg) = @_;
304
305	return if exists $obj->{_attachment}{$name};
306
307	my $res;
308
309	if (my $attach = $attachment{$name}) {
310	my $registry = $obj->registry;
311
312	for (@$attach) {
313	my ($klass, @attach) = @$_;
314	$res = _attach @$registry, $klass, @attach;
315	}
316
317	$obj->{$name} = \%arg;
318	} else {
319	warn "object uses attachment '$name' that is not available, postponing.\n";
320	}
321
322	$obj->{_attachment}{$name} = undef;
323
324	$res->{attachment} = $name;
325	$res
326	}
327
328	*cf::object::attach =
329	*cf::player::attach =
330	*cf::map::attach = sub {
331	my ($obj, $name, %arg) = @_;
332
333	_attach_attachment $obj, $name, %arg;
334	};
335
336	# all those should be optimised
337	*cf::object::detach =
338	*cf::player::detach =
339	*cf::map::detach = sub {
340	my ($obj, $name) = @_;
341
342	delete $obj->{_attachment}{$name};
343	reattach ($obj);
344	};
345
346	*cf::object::attached =
347	*cf::player::attached =
348	*cf::map::attached = sub {
349	my ($obj, $name) = @_;
350
351	exists $obj->{_attachment}{$name}
352	};
353
354	sub attach_global {
355	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
356	}
357
358	sub attach_to_type {
359	my $type = shift;
360	my $subtype = shift;
361
362	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
363	}
364
365	sub attach_to_objects {
366	_attach @CB_OBJECT, KLASS_OBJECT, @_
367	}
368
369	sub attach_to_players {
370	_attach @CB_PLAYER, KLASS_PLAYER, @_
371	}
372
373	sub attach_to_maps {
374	_attach @CB_MAP, KLASS_MAP, @_
375	}
376
377	sub register_attachment {
378	my $name = shift;
379
380	$attachment{$name} = [[KLASS_OBJECT, @_]];
381	}
382
383	sub register_player_attachment {
384	my $name = shift;
385
386	$attachment{$name} = [[KLASS_PLAYER, @_]];
387	}
388
389	sub register_map_attachment {
390	my $name = shift;
391
392	$attachment{$name} = [[KLASS_MAP, @_]];
393	}
394
395	our $override;
396	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
397
398	sub override {
399	$override = 1;
400	@invoke_results = ();
401	}
402
403	sub do_invoke {
404	my $event = shift;
405	my $callbacks = shift;
406
407	@invoke_results = ();
408
409	local $override;
410
411	for (@$callbacks) {
412	eval { &{$_->[1]} };
413
414	if ($@) {
415	warn "$@";
416	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
417	override;
418	}
419
420	return 1 if $override;
421	}
422
423	0	514	}
424	}
425		515
426	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	516	=item $attachable->valid
427
428	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
429
430	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
431
432	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
433
434	Generate a global/object/player/map-specific event with the given arguments.
435
436	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
437	removed in future versions), and there is no public API to access override
438	results (if you must, access C<@cf::invoke_results> directly).
439
440	=back
441
442	=cut
443
444	#############################################################################
445
446	=head2 METHODS VALID FOR ALL CORE OBJECTS
447
448	=over 4
449
450	=item $object->valid, $player->valid, $map->valid
451		517
452	Just because you have a perl object does not mean that the corresponding	518	Just because you have a perl object does not mean that the corresponding
453	C-level object still exists. If you try to access an object that has no	519	C-level object still exists. If you try to access an object that has no
454	valid C counterpart anymore you get an exception at runtime. This method	520	valid C counterpart anymore you get an exception at runtime. This method
455	can be used to test for existence of the C object part without causing an	521	can be used to test for existence of the C object part without causing an
456	exception.	522	exception.
457		523
		524	=cut
		525
		526	# the following variables are defined in .xs and must not be re-created
		527	our @CB_GLOBAL = (); # registry for all global events
		528	our @CB_ATTACHABLE = (); # registry for all attachables
		529	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		530	our @CB_PLAYER = ();
		531	our @CB_CLIENT = ();
		532	our @CB_TYPE = (); # registry for type (cf-object class) based events
		533	our @CB_MAP = ();
		534
		535	my %attachment;
		536
		537	sub _attach_cb($$$$) {
		538	my ($registry, $event, $prio, $cb) = @_;
		539
		540	use sort 'stable';
		541
		542	$cb = [$prio, $cb];
		543
		544	@{$registry->[$event]} = sort
		545	{ $a->[0] cmp $b->[0] }
		546	@{$registry->[$event] || []}, $cb;
		547	}
		548
		549	# hack
		550	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		551
		552	# attach handles attaching event callbacks
		553	# the only thing the caller has to do is pass the correct
		554	# registry (== where the callback attaches to).
		555	sub _attach {
		556	my ($registry, $klass, @arg) = @_;
		557
		558	my $object_type;
		559	my $prio = 0;
		560	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		561
		562	#TODO: get rid of this hack
		563	if ($attachable_klass{$klass}) {
		564	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		565	}
		566
		567	while (@arg) {
		568	my $type = shift @arg;
		569
		570	if ($type eq "prio") {
		571	$prio = shift @arg;
		572
		573	} elsif ($type eq "type") {
		574	$object_type = shift @arg;
		575	$registry = $CB_TYPE[$object_type] ||= [];
		576
		577	} elsif ($type eq "subtype") {
		578	defined $object_type or Carp::croak "subtype specified without type";
		579	my $object_subtype = shift @arg;
		580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		581
		582	} elsif ($type eq "package") {
		583	my $pkg = shift @arg;
		584
		585	while (my ($name, $id) = each %cb_id) {
		586	if (my $cb = $pkg->can ($name)) {
		587	_attach_cb $registry, $id, $prio, $cb;
		588	}
		589	}
		590
		591	} elsif (exists $cb_id{$type}) {
		592	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		593
		594	} elsif (ref $type) {
		595	warn "attaching objects not supported, ignoring.\n";
		596
		597	} else {
		598	shift @arg;
		599	warn "attach argument '$type' not supported, ignoring.\n";
		600	}
		601	}
		602	}
		603
		604	sub _object_attach {
		605	my ($obj, $name, %arg) = @_;
		606
		607	return if exists $obj->{_attachment}{$name};
		608
		609	if (my $attach = $attachment{$name}) {
		610	my $registry = $obj->registry;
		611
		612	for (@$attach) {
		613	my ($klass, @attach) = @$_;
		614	_attach $registry, $klass, @attach;
		615	}
		616
		617	$obj->{$name} = \%arg;
		618	} else {
		619	warn "object uses attachment '$name' that is not available, postponing.\n";
		620	}
		621
		622	$obj->{_attachment}{$name} = undef;
		623	}
		624
		625	sub cf::attachable::attach {
		626	if (ref $_[0]) {
		627	_object_attach @_;
		628	} else {
		629	_attach shift->_attach_registry, @_;
		630	}
		631	};
		632
		633	# all those should be optimised
		634	sub cf::attachable::detach {
		635	my ($obj, $name) = @_;
		636
		637	if (ref $obj) {
		638	delete $obj->{_attachment}{$name};
		639	reattach ($obj);
		640	} else {
		641	Carp::croak "cannot, currently, detach class attachments";
		642	}
		643	};
		644
		645	sub cf::attachable::attached {
		646	my ($obj, $name) = @_;
		647
		648	exists $obj->{_attachment}{$name}
		649	}
		650
		651	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		652	eval "#line " . __LINE__ . " 'cf.pm'
		653	sub cf::\L$klass\E::_attach_registry {
		654	(\\\@CB_$klass, KLASS_$klass)
		655	}
		656
		657	sub cf::\L$klass\E::attachment {
		658	my \$name = shift;
		659
		660	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		661	}
		662	";
		663	die if $@;
		664	}
		665
		666	our $override;
		667	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		668
		669	sub override {
		670	$override = 1;
		671	@invoke_results = ();
		672	}
		673
		674	sub do_invoke {
		675	my $event = shift;
		676	my $callbacks = shift;
		677
		678	@invoke_results = ();
		679
		680	local $override;
		681
		682	for (@$callbacks) {
		683	eval { &{$_->[1]} };
		684
		685	if ($@) {
		686	warn "$@";
		687	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		688	override;
		689	}
		690
		691	return 1 if $override;
		692	}
		693
		694	0
		695	}
		696
		697	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		698
		699	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		700
		701	Generate an object-specific event with the given arguments.
		702
		703	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		704	removed in future versions), and there is no public API to access override
		705	results (if you must, access C<@cf::invoke_results> directly).
		706
458	=back	707	=back
459		708
460	=cut	709	=cut
461
462	*cf::object::valid =
463	*cf::player::valid =
464	*cf::map::valid = \&cf::_valid;
465		710
466	#############################################################################	711	#############################################################################
467	# object support	712	# object support
468		713
469	sub instantiate {
470	my ($obj, $data) = @_;
471
472	$data = from_json $data;
473
474	for (@$data) {
475	my ($name, $args) = @$_;
476
477	$obj->attach ($name, %{$args || {} });
478	}
479	}
480
481	# basically do the same as instantiate, without calling instantiate
482	sub reattach {	714	sub reattach {
		715	# basically do the same as instantiate, without calling instantiate
483	my ($obj) = @_;	716	my ($obj) = @_;
		717
484	my $registry = $obj->registry;	718	my $registry = $obj->registry;
485		719
486	@$registry = ();	720	@$registry = ();
487		721
488	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	722	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
489		723
490	for my $name (keys %{ $obj->{_attachment} || {} }) {	724	for my $name (keys %{ $obj->{_attachment} || {} }) {
491	if (my $attach = $attachment{$name}) {	725	if (my $attach = $attachment{$name}) {
492	for (@$attach) {	726	for (@$attach) {
493	my ($klass, @attach) = @$_;	727	my ($klass, @attach) = @$_;
494	_attach @$registry, $klass, @attach;	728	_attach $registry, $klass, @attach;
495	}	729	}
496	} else {	730	} else {
497	warn "object uses attachment '$name' that is not available, postponing.\n";	731	warn "object uses attachment '$name' that is not available, postponing.\n";
498	}	732	}
499	}	733	}
500	}	734	}
501		735
502	sub object_freezer_save {	736	cf::attachable->attach (
503	my ($filename, $rdata, $objs) = @_;
504
505	if (length $$rdata) {
506	warn sprintf "saving %s (%d,%d)\n",
507	$filename, length $$rdata, scalar @$objs;
508
509	if (open my $fh, ">:raw", "$filename~") {
510	chmod SAVE_MODE, $fh;
511	syswrite $fh, $$rdata;
512	close $fh;
513
514	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
517	close $fh;
518	rename "$filename.pst~", "$filename.pst";
519	} else {
520	unlink "$filename.pst";
521	}
522
523	rename "$filename~", $filename;
524	} else {
525	warn "FATAL: $filename~: $!\n";
526	}
527	} else {
528	unlink $filename;
529	unlink "$filename.pst";
530	}
531	}
532
533	sub object_freezer_as_string {
534	my ($rdata, $objs) = @_;
535
536	use Data::Dumper;
537
538	$$rdata . Dumper $objs
539	}
540
541	sub object_thawer_load {
542	my ($filename) = @_;
543
544	local $/;
545
546	my $av;
547
548	#TODO: use sysread etc.
549	if (open my $data, "<:raw:perlio", $filename) {
550	$data = <$data>;
551	if (open my $pst, "<:raw:perlio", "$filename.pst") {
552	$av = eval { (Storable::thaw <$pst>)->{objs} };
553	}
554	return ($data, $av);
555	}
556
557	()
558	}
559
560	attach_to_objects
561	prio => -1000000,	737	prio => -1000000,
		738	on_instantiate => sub {
		739	my ($obj, $data) = @_;
		740
		741	$data = from_json $data;
		742
		743	for (@$data) {
		744	my ($name, $args) = @$_;
		745
		746	$obj->attach ($name, %{$args || {} });
		747	}
		748	},
		749	on_reattach => \&reattach,
562	on_clone => sub {	750	on_clone => sub {
563	my ($src, $dst) = @_;	751	my ($src, $dst) = @_;
564		752
565	@{$dst->registry} = @{$src->registry};	753	@{$dst->registry} = @{$src->registry};
566		754
567	%$dst = %$src;	755	%$dst = %$src;
568		756
569	%{$dst->{_attachment}} = %{$src->{_attachment}}	757	%{$dst->{_attachment}} = %{$src->{_attachment}}
570	if exists $src->{_attachment};	758	if exists $src->{_attachment};
571	},	759	},
572	;	760	);
		761
		762	sub object_freezer_save {
		763	my ($filename, $rdata, $objs) = @_;
		764
		765	sync_job {
		766	if (length $$rdata) {
		767	warn sprintf "saving %s (%d,%d)\n",
		768	$filename, length $$rdata, scalar @$objs;
		769
		770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		771	chmod SAVE_MODE, $fh;
		772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		773	aio_fsync $fh;
		774	close $fh;
		775
		776	if (@$objs) {
		777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		778	chmod SAVE_MODE, $fh;
		779	my $data = Storable::nfreeze { version => 1, objs => $objs };
		780	aio_write $fh, 0, (length $data), $data, 0;
		781	aio_fsync $fh;
		782	close $fh;
		783	aio_rename "$filename.pst~", "$filename.pst";
		784	}
		785	} else {
		786	aio_unlink "$filename.pst";
		787	}
		788
		789	aio_rename "$filename~", $filename;
		790	} else {
		791	warn "FATAL: $filename~: $!\n";
		792	}
		793	} else {
		794	aio_unlink $filename;
		795	aio_unlink "$filename.pst";
		796	}
		797	}
		798	}
		799
		800	sub object_freezer_as_string {
		801	my ($rdata, $objs) = @_;
		802
		803	use Data::Dumper;
		804
		805	$$rdata . Dumper $objs
		806	}
		807
		808	sub object_thawer_load {
		809	my ($filename) = @_;
		810
		811	my ($data, $av);
		812
		813	(aio_load $filename, $data) >= 0
		814	or return;
		815
		816	unless (aio_stat "$filename.pst") {
		817	(aio_load "$filename.pst", $av) >= 0
		818	or return;
		819	$av = eval { (Storable::thaw $av)->{objs} };
		820	}
		821
		822	return ($data, $av);
		823	}
573		824
574	#############################################################################	825	#############################################################################
575	# old plug-in events	826	# command handling &c
576		827
577	sub inject_event {	828	=item cf::register_command $name => \&callback($ob,$args);
578	my $extension = shift;
579	my $event_code = shift;
580		829
581	my $cb = $hook[$event_code]{$extension}	830	Register a callback for execution when the client sends the user command
582	or return;	831	$name.
583		832
584	&$cb	833	=cut
585	}
586
587	sub inject_global_event {
588	my $event = shift;
589
590	my $cb = $hook[$event]
591	or return;
592
593	List::Util::max map &$_, values %$cb
594	}
595
596	sub inject_command {
597	my ($name, $obj, $params) = @_;
598
599	for my $cmd (@{ $command{$name} }) {
600	$cmd->[1]->($obj, $params);
601	}
602
603	-1
604	}
605		834
606	sub register_command {	835	sub register_command {
607	my ($name, $time, $cb) = @_;	836	my ($name, $cb) = @_;
608		837
609	my $caller = caller;	838	my $caller = caller;
610	#warn "registering command '$name/$time' to '$caller'";	839	#warn "registering command '$name/$time' to '$caller'";
611		840
612	push @{ $command{$name} }, [$time, $cb, $caller];	841	push @{ $COMMAND{$name} }, [$caller, $cb];
613	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
614	}	842	}
		843
		844	=item cf::register_extcmd $name => \&callback($pl,$packet);
		845
		846	Register a callbackf ro execution when the client sends an extcmd packet.
		847
		848	If the callback returns something, it is sent back as if reply was being
		849	called.
		850
		851	=cut
615		852
616	sub register_extcmd {	853	sub register_extcmd {
617	my ($name, $cb) = @_;	854	my ($name, $cb) = @_;
618		855
619	my $caller = caller;	856	my $caller = caller;
620	#warn "registering extcmd '$name' to '$caller'";	857	#warn "registering extcmd '$name' to '$caller'";
621		858
622	$extcmd{$name} = [$cb, $caller];	859	$EXTCMD{$name} = [$cb, $caller];
623	}	860	}
		861
		862	cf::player->attach (
		863	on_command => sub {
		864	my ($pl, $name, $params) = @_;
		865
		866	my $cb = $COMMAND{$name}
		867	or return;
		868
		869	for my $cmd (@$cb) {
		870	$cmd->[1]->($pl->ob, $params);
		871	}
		872
		873	cf::override;
		874	},
		875	on_extcmd => sub {
		876	my ($pl, $buf) = @_;
		877
		878	my $msg = eval { from_json $buf };
		879
		880	if (ref $msg) {
		881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		882	if (my %reply = $cb->[0]->($pl, $msg)) {
		883	$pl->ext_reply ($msg->{msgid}, %reply);
		884	}
		885	}
		886	} else {
		887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		888	}
		889
		890	cf::override;
		891	},
		892	);
624		893
625	sub register {	894	sub register {
626	my ($base, $pkg) = @_;	895	my ($base, $pkg) = @_;
627		896
628	#TODO	897	#TODO
…		…
671	# for my $idx (0 .. $#PLUGIN_EVENT) {	940	# for my $idx (0 .. $#PLUGIN_EVENT) {
672	# delete $hook[$idx]{$pkg};	941	# delete $hook[$idx]{$pkg};
673	# }	942	# }
674		943
675	# remove commands	944	# remove commands
676	for my $name (keys %command) {	945	for my $name (keys %COMMAND) {
677	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
678		947
679	if (@cb) {	948	if (@cb) {
680	$command{$name} = \@cb;	949	$COMMAND{$name} = \@cb;
681	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
682	} else {	950	} else {
683	delete $command{$name};
684	delete $COMMAND{"$name\000"};	951	delete $COMMAND{$name};
685	}	952	}
686	}	953	}
687		954
688	# remove extcmds	955	# remove extcmds
689	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
690	delete $extcmd{$name};	957	delete $EXTCMD{$name};
691	}	958	}
692		959
693	if (my $cb = $pkg->can ("unload")) {	960	if (my $cb = $pkg->can ("unload")) {
694	eval {	961	eval {
695	$cb->($pkg);	962	$cb->($pkg);
…		…
699		966
700	Symbol::delete_package $pkg;	967	Symbol::delete_package $pkg;
701	}	968	}
702		969
703	sub load_extensions {	970	sub load_extensions {
704	my $LIBDIR = maps_directory "perl";
705
706	for my $ext (<$LIBDIR/*.ext>) {	971	for my $ext (<$LIBDIR/*.ext>) {
707	next unless -r $ext;	972	next unless -r $ext;
708	eval {	973	eval {
709	load_extension $ext;	974	load_extension $ext;
710	1	975	1
711	} or warn "$ext not loaded: $@";	976	} or warn "$ext not loaded: $@";
712	}	977	}
713	}	978	}
714		979
715	#############################################################################	980	#############################################################################
716	# extcmd framework, basically convert ext <msg>
717	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
718
719	attach_to_players
720	on_extcmd => sub {
721	my ($pl, $buf) = @_;
722
723	my $msg = eval { from_json $buf };
724
725	if (ref $msg) {
726	if (my $cb = $extcmd{$msg->{msgtype}}) {
727	if (my %reply = $cb->[0]->($pl, $msg)) {
728	$pl->ext_reply ($msg->{msgid}, %reply);
729	}
730	}
731	} else {
732	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
733	}
734
735	cf::override;
736	},
737	;
738
739	#############################################################################
740	# load/save/clean perl data associated with a map	981	# load/save/clean perl data associated with a map
741		982
742	*cf::mapsupport::on_clean = sub {	983	*cf::mapsupport::on_clean = sub {
743	my ($map) = @_;	984	my ($map) = @_;
744		985
…		…
746	defined $path or return;	987	defined $path or return;
747		988
748	unlink "$path.pst";	989	unlink "$path.pst";
749	};	990	};
750		991
751	attach_to_maps prio => -10000, package => cf::mapsupport::;	992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
752		993
753	#############################################################################	994	#############################################################################
754	# load/save perl data associated with player->ob objects	995	# load/save perl data associated with player->ob objects
755		996
756	sub all_objects(@) {	997	sub all_objects(@) {
757	@_, map all_objects ($_->inv), @_	998	@_, map all_objects ($_->inv), @_
758	}	999	}
759		1000
760	# TODO: compatibility cruft, remove when no longer needed	1001	# TODO: compatibility cruft, remove when no longer needed
761	attach_to_players	1002	cf::player->attach (
762	on_load => sub {	1003	on_load => sub {
763	my ($pl, $path) = @_;	1004	my ($pl, $path) = @_;
764		1005
765	for my $o (all_objects $pl->ob) {	1006	for my $o (all_objects $pl->ob) {
766	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
768		1009
769	%$o = %{ Storable::thaw pack "H*", $value };	1010	%$o = %{ Storable::thaw pack "H*", $value };
770	}	1011	}
771	}	1012	}
772	},	1013	},
773	;	1014	);
774		1015
775	#############################################################################	1016	#############################################################################
776		1017
777	=head2 CORE EXTENSIONS	1018	=head2 CORE EXTENSIONS
778		1019
779	Functions and methods that extend core crossfire objects.	1020	Functions and methods that extend core crossfire objects.
		1021
		1022	=head3 cf::player
780		1023
781	=over 4	1024	=over 4
782		1025
783	=item cf::player::exists $login	1026	=item cf::player::exists $login
784		1027
…		…
789	sub cf::player::exists($) {	1032	sub cf::player::exists($) {
790	cf::player::find $_[0]	1033	cf::player::find $_[0]
791	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1034	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
792	}	1035	}
793		1036
		1037	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1038
		1039	Sends an ext reply to the player.
		1040
		1041	=cut
		1042
		1043	sub cf::player::ext_reply($$$%) {
		1044	my ($self, $id, %msg) = @_;
		1045
		1046	$msg{msgid} = $id;
		1047
		1048	$self->send ("ext " . to_json \%msg);
		1049	}
		1050
		1051	=back
		1052
		1053
		1054	=head3 cf::map
		1055
		1056	=over 4
		1057
		1058	=cut
		1059
		1060	package cf::map;
		1061
		1062	use Fcntl;
		1063	use Coro::AIO;
		1064
		1065	our $MAX_RESET = 7200;
		1066	our $DEFAULT_RESET = 3600;
		1067
		1068	sub generate_random_map {
		1069	my ($path, $rmp) = @_;
		1070
		1071	# mit "rum" bekleckern, nicht
		1072	cf::map::_create_random_map
		1073	$path,
		1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1077	$rmp->{exit_on_final_map},
		1078	$rmp->{xsize}, $rmp->{ysize},
		1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1082	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1084	(cf::region::find $rmp->{region})
		1085	}
		1086
		1087	# and all this just because we cannot iterate over
		1088	# all maps in C++...
		1089	sub change_all_map_light {
		1090	my ($change) = @_;
		1091
		1092	$_->change_map_light ($change) for values %cf::MAP;
		1093	}
		1094
		1095	sub try_load_header($) {
		1096	my ($path) = @_;
		1097
		1098	utf8::encode $path;
		1099	aio_open $path, O_RDONLY, 0
		1100	or return;
		1101
		1102	my $map = cf::map::new
		1103	or return;
		1104
		1105	$map->load_header ($path)
		1106	or return;
		1107
		1108	$map->{load_path} = $path;
		1109
		1110	$map
		1111	}
		1112
		1113	sub find_map {
		1114	my ($path, $origin) = @_;
		1115
		1116	#warn "find_map<$path,$origin>\n";#d#
		1117
		1118	$path = new cf::path $path, $origin && $origin->path;
		1119	my $key = $path->as_string;
		1120
		1121	$cf::MAP{$key} || do {
		1122	# do it the slow way
		1123	my $map = try_load_header $path->save_path;
		1124
		1125	if ($map) {
		1126	# safety
		1127	$map->{instantiate_time} = $cf::RUNTIME
		1128	if $map->{instantiate_time} > $cf::RUNTIME;
		1129	} else {
		1130	if (my $rmp = $path->random_map_params) {
		1131	$map = generate_random_map $key, $rmp;
		1132	} else {
		1133	$map = try_load_header $path->load_path;
		1134	}
		1135
		1136	$map or return;
		1137
		1138	$map->{load_original} = 1;
		1139	$map->{instantiate_time} = $cf::RUNTIME;
		1140	$map->instantiate;
		1141
		1142	# per-player maps become, after loading, normal maps
		1143	$map->per_player (0) if $path->{user_rel};
		1144	}
		1145
		1146	$map->path ($key);
		1147	$map->{path} = $path;
		1148	$map->{last_save} = $cf::RUNTIME;
		1149	$map->last_access ($cf::RUNTIME);
		1150
		1151	if ($map->should_reset) {
		1152	$map->reset;
		1153	$map = find_map $path;
		1154	}
		1155
		1156	$cf::MAP{$key} = $map
		1157	}
		1158	}
		1159
		1160	sub load {
		1161	my ($self) = @_;
		1162
		1163	return if $self->in_memory != cf::MAP_SWAPPED;
		1164
		1165	$self->in_memory (cf::MAP_LOADING);
		1166
		1167	my $path = $self->{path};
		1168
		1169	$self->alloc;
		1170	$self->load_objects ($self->{load_path}, 1)
		1171	or return;
		1172
		1173	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1174	if delete $self->{load_original};
		1175
		1176	if (my $uniq = $path->uniq_path) {
		1177	utf8::encode $uniq;
		1178	if (aio_open $uniq, O_RDONLY, 0) {
		1179	$self->clear_unique_items;
		1180	$self->load_objects ($uniq, 0);
		1181	}
		1182	}
		1183
		1184	# now do the right thing for maps
		1185	$self->link_multipart_objects;
		1186
		1187	if ($self->{path}->is_style_map) {
		1188	$self->{deny_save} = 1;
		1189	$self->{deny_reset} = 1;
		1190	} else {
		1191	$self->fix_auto_apply;
		1192	$self->decay_objects;
		1193	$self->update_buttons;
		1194	$self->set_darkness_map;
		1195	$self->difficulty ($self->estimate_difficulty)
		1196	unless $self->difficulty;
		1197	$self->activate;
		1198	}
		1199
		1200	$self->in_memory (cf::MAP_IN_MEMORY);
		1201	}
		1202
		1203	sub load_map_sync {
		1204	my ($path, $origin) = @_;
		1205
		1206	#warn "load_map_sync<$path, $origin>\n";#d#
		1207
		1208	cf::sync_job {
		1209	my $map = cf::map::find_map $path, $origin
		1210	or return;
		1211	$map->load;
		1212	$map
		1213	}
		1214	}
		1215
		1216	sub save {
		1217	my ($self) = @_;
		1218
		1219	my $save = $self->{path}->save_path; utf8::encode $save;
		1220	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1221
		1222	$self->{last_save} = $cf::RUNTIME;
		1223
		1224	return unless $self->dirty;
		1225
		1226	$self->{load_path} = $save;
		1227
		1228	return if $self->{deny_save};
		1229
		1230	if ($uniq) {
		1231	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1232	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1233	} else {
		1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1235	}
		1236	}
		1237
		1238	sub swap_out {
		1239	my ($self) = @_;
		1240
		1241	return if $self->players;
		1242	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1243	return if $self->{deny_save};
		1244
		1245	$self->save;
		1246	$self->clear;
		1247	$self->in_memory (cf::MAP_SWAPPED);
		1248	}
		1249
		1250	sub reset_at {
		1251	my ($self) = @_;
		1252
		1253	# TODO: safety, remove and allow resettable per-player maps
		1254	return 1e99 if $self->{path}{user_rel};
		1255	return 1e99 if $self->{deny_reset};
		1256
		1257	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1258	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1259
		1260	$time + $to
		1261	}
		1262
		1263	sub should_reset {
		1264	my ($self) = @_;
		1265
		1266	$self->reset_at <= $cf::RUNTIME
		1267	}
		1268
		1269	sub unlink_save {
		1270	my ($self) = @_;
		1271
		1272	utf8::encode (my $save = $self->{path}->save_path);
		1273	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1274	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1275	}
		1276
		1277	sub rename {
		1278	my ($self, $new_path) = @_;
		1279
		1280	$self->unlink_save;
		1281
		1282	delete $cf::MAP{$self->path};
		1283	$self->{path} = new cf::path $new_path;
		1284	$self->path ($self->{path}->as_string);
		1285	$cf::MAP{$self->path} = $self;
		1286
		1287	$self->save;
		1288	}
		1289
		1290	sub reset {
		1291	my ($self) = @_;
		1292
		1293	return if $self->players;
		1294	return if $self->{path}{user_rel};#d#
		1295
		1296	warn "resetting map ", $self->path;#d#
		1297
		1298	delete $cf::MAP{$self->path};
		1299
		1300	$_->clear_links_to ($self) for values %cf::MAP;
		1301
		1302	$self->unlink_save;
		1303	$self->destroy;
		1304	}
		1305
		1306	my $nuke_counter = "aaaa";
		1307
		1308	sub nuke {
		1309	my ($self) = @_;
		1310
		1311	$self->{deny_save} = 1;
		1312	$self->reset_timeout (1);
		1313	$self->rename ("{nuke}/" . ($nuke_counter++));
		1314	$self->reset; # polite request, might not happen
		1315	}
		1316
		1317	sub customise_for {
		1318	my ($map, $ob) = @_;
		1319
		1320	if ($map->per_player) {
		1321	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1322	}
		1323
		1324	$map
		1325	}
		1326
		1327	sub emergency_save {
		1328	local $cf::FREEZE = 1;
		1329
		1330	warn "enter emergency map save\n";
		1331
		1332	cf::sync_job {
		1333	warn "begin emergency map save\n";
		1334	$_->save for values %cf::MAP;
		1335	};
		1336
		1337	warn "end emergency map save\n";
		1338	}
		1339
		1340	package cf;
		1341
		1342	=back
		1343
		1344
		1345	=head3 cf::object::player
		1346
		1347	=over 4
		1348
794	=item $player_object->reply ($npc, $msg[, $flags])	1349	=item $player_object->reply ($npc, $msg[, $flags])
795		1350
796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1351	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
797	can be C<undef>. Does the right thing when the player is currently in a	1352	can be C<undef>. Does the right thing when the player is currently in a
798	dialogue with the given NPC character.	1353	dialogue with the given NPC character.
799		1354
800	=cut	1355	=cut
801		1356
802	# rough implementation of a future "reply" method that works	1357	# rough implementation of a future "reply" method that works
803	# with dialog boxes.	1358	# with dialog boxes.
		1359	#TODO: the first argument must go, split into a $npc->reply_to ( method
804	sub cf::object::player::reply($$$;$) {	1360	sub cf::object::player::reply($$$;$) {
805	my ($self, $npc, $msg, $flags) = @_;	1361	my ($self, $npc, $msg, $flags) = @_;
806		1362
807	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1363	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
808		1364
…		…
812	$msg = $npc->name . " says: $msg" if $npc;	1368	$msg = $npc->name . " says: $msg" if $npc;
813	$self->message ($msg, $flags);	1369	$self->message ($msg, $flags);
814	}	1370	}
815	}	1371	}
816		1372
817	=item $player->ext_reply ($msgid, $msgtype, %msg)
818
819	Sends an ext reply to the player.
820
821	=cut
822
823	sub cf::player::ext_reply($$$%) {
824	my ($self, $id, %msg) = @_;
825
826	$msg{msgid} = $id;
827
828	$self->send ("ext " . to_json \%msg);
829	}
830
831	=item $player_object->may ("access")	1373	=item $player_object->may ("access")
832		1374
833	Returns wether the given player is authorized to access resource "access"	1375	Returns wether the given player is authorized to access resource "access"
834	(e.g. "command_wizcast").	1376	(e.g. "command_wizcast").
835		1377
…		…
842	(ref $cf::CFG{"may_$access"}	1384	(ref $cf::CFG{"may_$access"}
843	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1385	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
844	: $cf::CFG{"may_$access"})	1386	: $cf::CFG{"may_$access"})
845	}	1387	}
846		1388
847	=cut	1389	=item $player_object->enter_link
848		1390
849	#############################################################################	1391	Freezes the player and moves him/her to a special map (C<{link}>).
		1392
		1393	The player should be reaosnably safe there for short amounts of time. You
		1394	I<MUST> call C<leave_link> as soon as possible, though.
		1395
		1396	=item $player_object->leave_link ($map, $x, $y)
		1397
		1398	Moves the player out of the specila link map onto the given map. If the
		1399	map is not valid (or omitted), the player will be moved back to the
		1400	location he/she was before the call to C<enter_link>, or, if that fails,
		1401	to the emergency map position.
		1402
		1403	Might block.
		1404
		1405	=cut
		1406
		1407	sub cf::object::player::enter_link {
		1408	my ($self) = @_;
		1409
		1410	return if $self->map == $LINK_MAP;
		1411
		1412	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1413	if $self->map;
		1414
		1415	$self->enter_map ($LINK_MAP, 20, 20);
		1416	$self->deactivate_recursive;
		1417	}
		1418
		1419	sub cf::object::player::leave_link {
		1420	my ($self, $map, $x, $y) = @_;
		1421
		1422	my $link_pos = delete $self->{_link_pos};
		1423
		1424	unless ($map) {
		1425	# restore original map position
		1426	($map, $x, $y) = @{ $link_pos || [] };
		1427	$map = cf::map::find_map $map;
		1428
		1429	unless ($map) {
		1430	($map, $x, $y) = @$EMERGENCY_POSITION;
		1431	$map = cf::map::find_map $map
		1432	or die "FATAL: cannot load emergency map\n";
		1433	}
		1434	}
		1435
		1436	($x, $y) = (-1, -1)
		1437	unless (defined $x) && (defined $y);
		1438
		1439	# use -1 or undef as default coordinates, not 0, 0
		1440	($x, $y) = ($map->enter_x, $map->enter_y)
		1441	if $x <=0 && $y <= 0;
		1442
		1443	$map->load;
		1444
		1445	$self->activate_recursive;
		1446	$self->enter_map ($map, $x, $y);
		1447	}
		1448
		1449	=item $player_object->goto_map ($map, $x, $y)
		1450
		1451	=cut
		1452
		1453	sub cf::object::player::goto_map {
		1454	my ($self, $path, $x, $y) = @_;
		1455
		1456	$self->enter_link;
		1457
		1458	(Coro::async {
		1459	$path = new cf::path $path;
		1460
		1461	my $map = cf::map::find_map $path->as_string;
		1462	$map = $map->customise_for ($self) if $map;
		1463
		1464	warn "entering ", $map->path, " at ($x, $y)\n"
		1465	if $map;
		1466
		1467	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1468
		1469	$self->leave_link ($map, $x, $y);
		1470	})->prio (1);
		1471	}
		1472
		1473	=item $player_object->enter_exit ($exit_object)
		1474
		1475	=cut
		1476
		1477	sub parse_random_map_params {
		1478	my ($spec) = @_;
		1479
		1480	my $rmp = { # defaults
		1481	xsize => 10,
		1482	ysize => 10,
		1483	};
		1484
		1485	for (split /\n/, $spec) {
		1486	my ($k, $v) = split /\s+/, $_, 2;
		1487
		1488	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1489	}
		1490
		1491	$rmp
		1492	}
		1493
		1494	sub prepare_random_map {
		1495	my ($exit) = @_;
		1496
		1497	# all this does is basically replace the /! path by
		1498	# a new random map path (?random/...) with a seed
		1499	# that depends on the exit object
		1500
		1501	my $rmp = parse_random_map_params $exit->msg;
		1502
		1503	if ($exit->map) {
		1504	$rmp->{region} = $exit->map->region_name;
		1505	$rmp->{origin_map} = $exit->map->path;
		1506	$rmp->{origin_x} = $exit->x;
		1507	$rmp->{origin_y} = $exit->y;
		1508	}
		1509
		1510	$rmp->{random_seed} ||= $exit->random_seed;
		1511
		1512	my $data = cf::to_json $rmp;
		1513	my $md5 = Digest::MD5::md5_hex $data;
		1514
		1515	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1516	aio_write $fh, 0, (length $data), $data, 0;
		1517
		1518	$exit->slaying ("?random/$md5");
		1519	$exit->msg (undef);
		1520	}
		1521	}
		1522
		1523	sub cf::object::player::enter_exit {
		1524	my ($self, $exit) = @_;
		1525
		1526	return unless $self->type == cf::PLAYER;
		1527
		1528	$self->enter_link;
		1529
		1530	(Coro::async {
		1531	unless (eval {
		1532
		1533	prepare_random_map $exit
		1534	if $exit->slaying eq "/!";
		1535
		1536	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1537	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1538
		1539	1;
		1540	}) {
		1541	$self->message ("Something went wrong deep within the crossfire server. "
		1542	. "I'll try to bring you back to the map you were before. "
		1543	. "Please report this to the dungeon master",
		1544	cf::NDI_UNIQUE | cf::NDI_RED);
		1545
		1546	warn "ERROR in enter_exit: $@";
		1547	$self->leave_link;
		1548	}
		1549	})->prio (1);
		1550	}
		1551
		1552	=head3 cf::client
		1553
		1554	=over 4
		1555
		1556	=item $client->send_drawinfo ($text, $flags)
		1557
		1558	Sends a drawinfo packet to the client. Circumvents output buffering so
		1559	should not be used under normal circumstances.
		1560
		1561	=cut
		1562
		1563	sub cf::client::send_drawinfo {
		1564	my ($self, $text, $flags) = @_;
		1565
		1566	utf8::encode $text;
		1567	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1568	}
		1569
		1570
		1571	=item $success = $client->query ($flags, "text", \&cb)
		1572
		1573	Queues a query to the client, calling the given callback with
		1574	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1575	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1576
		1577	Queries can fail, so check the return code. Or don't, as queries will become
		1578	reliable at some point in the future.
		1579
		1580	=cut
		1581
		1582	sub cf::client::query {
		1583	my ($self, $flags, $text, $cb) = @_;
		1584
		1585	return unless $self->state == ST_PLAYING
		1586	|| $self->state == ST_SETUP
		1587	|| $self->state == ST_CUSTOM;
		1588
		1589	$self->state (ST_CUSTOM);
		1590
		1591	utf8::encode $text;
		1592	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1593
		1594	$self->send_packet ($self->{query_queue}[0][0])
		1595	if @{ $self->{query_queue} } == 1;
		1596	}
		1597
		1598	cf::client->attach (
		1599	on_reply => sub {
		1600	my ($ns, $msg) = @_;
		1601
		1602	# this weird shuffling is so that direct followup queries
		1603	# get handled first
		1604	my $queue = delete $ns->{query_queue};
		1605
		1606	(shift @$queue)->[1]->($msg);
		1607
		1608	push @{ $ns->{query_queue} }, @$queue;
		1609
		1610	if (@{ $ns->{query_queue} } == @$queue) {
		1611	if (@$queue) {
		1612	$ns->send_packet ($ns->{query_queue}[0][0]);
		1613	} else {
		1614	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1615	}
		1616	}
		1617	},
		1618	);
		1619
		1620	=item $client->coro (\&cb)
		1621
		1622	Create a new coroutine, running the specified callback. The coroutine will
		1623	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1624	or loss of connection).
		1625
		1626	=cut
		1627
		1628	sub cf::client::coro {
		1629	my ($self, $cb) = @_;
		1630
		1631	my $coro; $coro = async {
		1632	eval {
		1633	$cb->();
		1634	};
		1635	warn $@ if $@;
		1636	};
		1637
		1638	$coro->on_destroy (sub {
		1639	delete $self->{_coro}{$coro+0};
		1640	});
		1641
		1642	$self->{_coro}{$coro+0} = $coro;
		1643
		1644	$coro
		1645	}
		1646
		1647	cf::client->attach (
		1648	on_destroy => sub {
		1649	my ($ns) = @_;
		1650
		1651	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1652	},
		1653	);
		1654
		1655	=back
		1656
850		1657
851	=head2 SAFE SCRIPTING	1658	=head2 SAFE SCRIPTING
852		1659
853	Functions that provide a safe environment to compile and execute	1660	Functions that provide a safe environment to compile and execute
854	snippets of perl code without them endangering the safety of the server	1661	snippets of perl code without them endangering the safety of the server
…		…
869		1676
870	=pod	1677	=pod
871		1678
872	The following fucntions and emthods are available within a safe environment:	1679	The following fucntions and emthods are available within a safe environment:
873		1680
874	cf::object contr pay_amount pay_player	1681	cf::object contr pay_amount pay_player map
875	cf::object::player player	1682	cf::object::player player
876	cf::player peaceful	1683	cf::player peaceful
		1684	cf::map trigger
877		1685
878	=cut	1686	=cut
879		1687
880	for (	1688	for (
881	["cf::object" => qw(contr pay_amount pay_player)],	1689	["cf::object" => qw(contr pay_amount pay_player map)],
882	["cf::object::player" => qw(player)],	1690	["cf::object::player" => qw(player)],
883	["cf::player" => qw(peaceful)],	1691	["cf::player" => qw(peaceful)],
		1692	["cf::map" => qw(trigger)],
884	) {	1693	) {
885	no strict 'refs';	1694	no strict 'refs';
886	my ($pkg, @funs) = @$_;	1695	my ($pkg, @funs) = @$_;
887	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1696	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
888	for @funs;	1697	for @funs;
…		…
1028	sub db_sync() {	1837	sub db_sync() {
1029	db_save if $dirty;	1838	db_save if $dirty;
1030	undef $dirty;	1839	undef $dirty;
1031	}	1840	}
1032		1841
1033	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1842	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1034	db_sync;	1843	db_sync;
1035	});	1844	});
1036		1845
1037	sub db_dirty() {	1846	sub db_dirty() {
1038	$dirty = 1;	1847	$dirty = 1;
…		…
1052	$DB->{$_[0]} = $_[1];	1861	$DB->{$_[0]} = $_[1];
1053	}	1862	}
1054	db_dirty;	1863	db_dirty;
1055	}	1864	}
1056		1865
1057	attach_global	1866	cf::global->attach (
1058	prio => 10000,	1867	prio => 10000,
1059	on_cleanup => sub {	1868	on_cleanup => sub {
1060	db_sync;	1869	db_sync;
1061	},	1870	},
1062	;	1871	);
1063	}	1872	}
1064		1873
1065	#############################################################################	1874	#############################################################################
1066	# the server's main()	1875	# the server's main()
1067		1876
…		…
1072	local $/;	1881	local $/;
1073	*CFG = YAML::Syck::Load <$fh>;	1882	*CFG = YAML::Syck::Load <$fh>;
1074	}	1883	}
1075		1884
1076	sub main {	1885	sub main {
		1886	# we must not ever block the main coroutine
		1887	local $Coro::idle = sub {
		1888	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		1889	(Coro::unblock_sub {
		1890	Event::one_event;
		1891	})->();
		1892	};
		1893
1077	cfg_load;	1894	cfg_load;
1078	db_load;	1895	db_load;
1079	load_extensions;	1896	load_extensions;
1080	Event::loop;	1897	Event::loop;
1081	}	1898	}
1082		1899
1083	#############################################################################	1900	#############################################################################
1084	# initialisation	1901	# initialisation
1085		1902
1086	sub _perl_reload(&) {	1903	sub reload() {
1087	my ($msg) = @_;	1904	# can/must only be called in main
		1905	if ($Coro::current != $Coro::main) {
		1906	warn "can only reload from main coroutine\n";
		1907	return;
		1908	}
1088		1909
1089	$msg->("reloading...");	1910	warn "reloading...";
		1911
		1912	local $FREEZE = 1;
		1913	cf::emergency_save;
1090		1914
1091	eval {	1915	eval {
		1916	# if anything goes wrong in here, we should simply crash as we already saved
		1917
1092	# cancel all watchers	1918	# cancel all watchers
1093	$_->cancel for Event::all_watchers;	1919	for (Event::all_watchers) {
		1920	$_->cancel if $_->data & WF_AUTOCANCEL;
		1921	}
		1922
		1923	# cancel all extension coros
		1924	$_->cancel for values %EXT_CORO;
		1925	%EXT_CORO = ();
1094		1926
1095	# unload all extensions	1927	# unload all extensions
1096	for (@exts) {	1928	for (@exts) {
1097	$msg->("unloading <$_>");	1929	warn "unloading <$_>";
1098	unload_extension $_;	1930	unload_extension $_;
1099	}	1931	}
1100		1932
1101	# unload all modules loaded from $LIBDIR	1933	# unload all modules loaded from $LIBDIR
1102	while (my ($k, $v) = each %INC) {	1934	while (my ($k, $v) = each %INC) {
1103	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1935	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1104		1936
1105	$msg->("removing <$k>");	1937	warn "removing <$k>";
1106	delete $INC{$k};	1938	delete $INC{$k};
1107		1939
1108	$k =~ s/\.pm$//;	1940	$k =~ s/\.pm$//;
1109	$k =~ s/\//::/g;	1941	$k =~ s/\//::/g;
1110		1942
…		…
1115	Symbol::delete_package $k;	1947	Symbol::delete_package $k;
1116	}	1948	}
1117		1949
1118	# sync database to disk	1950	# sync database to disk
1119	cf::db_sync;	1951	cf::db_sync;
		1952	IO::AIO::flush;
1120		1953
1121	# get rid of safe::, as good as possible	1954	# get rid of safe::, as good as possible
1122	Symbol::delete_package "safe::$_"	1955	Symbol::delete_package "safe::$_"
1123	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1956	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1124		1957
1125	# remove register_script_function callbacks	1958	# remove register_script_function callbacks
1126	# TODO	1959	# TODO
1127		1960
1128	# unload cf.pm "a bit"	1961	# unload cf.pm "a bit"
…		…
1131	# don't, removes xs symbols, too,	1964	# don't, removes xs symbols, too,
1132	# and global variables created in xs	1965	# and global variables created in xs
1133	#Symbol::delete_package __PACKAGE__;	1966	#Symbol::delete_package __PACKAGE__;
1134		1967
1135	# reload cf.pm	1968	# reload cf.pm
1136	$msg->("reloading cf.pm");	1969	warn "reloading cf.pm";
1137	require cf;	1970	require cf;
		1971	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1138		1972
1139	# load config and database again	1973	# load config and database again
1140	cf::cfg_load;	1974	cf::cfg_load;
1141	cf::db_load;	1975	cf::db_load;
1142		1976
1143	# load extensions	1977	# load extensions
1144	$msg->("load extensions");	1978	warn "load extensions";
1145	cf::load_extensions;	1979	cf::load_extensions;
1146		1980
1147	# reattach attachments to objects	1981	# reattach attachments to objects
1148	$msg->("reattach");	1982	warn "reattach";
1149	_global_reattach;	1983	_global_reattach;
1150	};	1984	};
1151	$msg->($@) if $@;
1152		1985
1153	$msg->("reloaded");	1986	if ($@) {
		1987	warn $@;
		1988	warn "error while reloading, exiting.";
		1989	exit 1;
		1990	}
		1991
		1992	warn "reloaded successfully";
1154	};	1993	};
1155		1994
1156	sub perl_reload() {	1995	#############################################################################
1157	_perl_reload {
1158	warn $_[0];
1159	print "$_[0]\n";
1160	};
1161	}
1162		1996
		1997	unless ($LINK_MAP) {
		1998	$LINK_MAP = cf::map::new;
		1999
		2000	$LINK_MAP->width (41);
		2001	$LINK_MAP->height (41);
		2002	$LINK_MAP->alloc;
		2003	$LINK_MAP->path ("{link}");
		2004	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2005	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2006
		2007	# dirty hack because... archetypes are not yet loaded
		2008	Event->timer (
		2009	after => 2,
		2010	cb => sub {
		2011	$_[0]->w->cancel;
		2012
		2013	# provide some exits "home"
		2014	my $exit = cf::object::new "exit";
		2015
		2016	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2017	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2018	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2019
		2020	$LINK_MAP->insert ($exit->clone, 19, 19);
		2021	$LINK_MAP->insert ($exit->clone, 19, 20);
		2022	$LINK_MAP->insert ($exit->clone, 19, 21);
		2023	$LINK_MAP->insert ($exit->clone, 20, 19);
		2024	$LINK_MAP->insert ($exit->clone, 20, 21);
		2025	$LINK_MAP->insert ($exit->clone, 21, 19);
		2026	$LINK_MAP->insert ($exit->clone, 21, 20);
		2027	$LINK_MAP->insert ($exit->clone, 21, 21);
		2028
		2029	$exit->destroy;
		2030	});
		2031
		2032	$LINK_MAP->{deny_save} = 1;
		2033	$LINK_MAP->{deny_reset} = 1;
		2034
		2035	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2036	}
		2037
		2038	register "<global>", __PACKAGE__;
		2039
1163	register_command "perl-reload", 0, sub {	2040	register_command "reload" => sub {
1164	my ($who, $arg) = @_;	2041	my ($who, $arg) = @_;
1165		2042
1166	if ($who->flag (FLAG_WIZ)) {	2043	if ($who->flag (FLAG_WIZ)) {
1167	_perl_reload {	2044	$who->message ("start of reload.");
1168	warn $_[0];	2045	reload;
1169	$who->message ($_[0]);	2046	$who->message ("end of reload.");
1170	};
1171	}	2047	}
1172	};	2048	};
1173		2049
1174	register "<global>", __PACKAGE__;
1175
1176	unshift @INC, $LIBDIR;	2050	unshift @INC, $LIBDIR;
1177		2051
1178	$TICK_WATCHER = Event->timer (	2052	$TICK_WATCHER = Event->timer (
		2053	reentrant => 0,
1179	prio => 1,	2054	prio => 0,
1180	async => 1,
1181	at => $NEXT_TICK || 1,	2055	at => $NEXT_TICK || $TICK,
		2056	data => WF_AUTOCANCEL,
1182	cb => sub {	2057	cb => sub {
		2058	unless ($FREEZE) {
1183	cf::server_tick; # one server iteration	2059	cf::server_tick; # one server iteration
		2060	$RUNTIME += $TICK;
		2061	}
1184		2062
1185	my $NOW = Event::time;
1186	$NEXT_TICK += $TICK;	2063	$NEXT_TICK += $TICK;
1187		2064
1188	# if we are delayed by four ticks or more, skip them all	2065	# if we are delayed by four ticks or more, skip them all
1189	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2066	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1190		2067
1191	$TICK_WATCHER->at ($NEXT_TICK);	2068	$TICK_WATCHER->at ($NEXT_TICK);
1192	$TICK_WATCHER->start;	2069	$TICK_WATCHER->start;
1193	},	2070	},
1194	);	2071	);
1195		2072
1196	IO::AIO::max_poll_time $TICK * 0.2;	2073	IO::AIO::max_poll_time $TICK * 0.2;
1197		2074
		2075	Event->io (
1198	Event->io (fd => IO::AIO::poll_fileno,	2076	fd => IO::AIO::poll_fileno,
1199	poll => 'r',	2077	poll => 'r',
1200	prio => 5,	2078	prio => 5,
		2079	data => WF_AUTOCANCEL,
1201	cb => \&IO::AIO::poll_cb);	2080	cb => \&IO::AIO::poll_cb,
		2081	);
		2082
		2083	Event->timer (
		2084	data => WF_AUTOCANCEL,
		2085	after => 0,
		2086	interval => 10,
		2087	cb => sub {
		2088	(Coro::unblock_sub {
		2089	write_runtime
		2090	or warn "ERROR: unable to write runtime file: $!";
		2091	})->();
		2092	},
		2093	);
1202		2094
1203	1	2095	1
1204		2096

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