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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.65 by root, Tue Sep 12 22:18:55 2006 UTC vs.
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Digest::MD5;
		21	use Fcntl;
		22	use IO::AIO 2.31 ();
		23	use YAML::Syck ();
10	use Time::HiRes;	24	use Time::HiRes;
11	use Event;	25
12	$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
13		27
14	use strict;	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		29	$YAML::Syck::ImplicitUnicode = 1;
15		30
16	_init_vars;	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
17		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		34
18	our %COMMAND = ();	35	our %COMMAND = ();
		36	our %COMMAND_TIME = ();
		37	our %EXTCMD = ();
		38
19	our @EVENT;	39	our @EVENT;
20	our $LIBDIR = maps_directory "perl";	40	our $LIBDIR = datadir . "/ext";
21		41
22	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
23	our $TICK_WATCHER;	43	our $TICK_WATCHER;
24	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
		46
		47	our %CFG;
		48
		49	our $UPTIME; $UPTIME ||= time;
		50	our $RUNTIME;
		51
		52	our %MAP; # all maps
		53	our $LINK_MAP; # the special {link} map
		54	our $FREEZE;
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO;
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		63	open my $fh, "<", cf::localdir . "/runtime"
		64	or die "unable to read runtime file: $!";
		65	$RUNTIME = <$fh> + 0.;
		66	}
		67
		68	mkdir cf::localdir;
		69	mkdir cf::localdir . "/" . cf::playerdir;
		70	mkdir cf::localdir . "/" . cf::tmpdir;
		71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
		73
		74	# a special map that is always available
		75	our $LINK_MAP;
		76
		77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		78
		79	#############################################################################
		80
		81	=head2 GLOBAL VARIABLES
		82
		83	=over 4
		84
		85	=item $cf::UPTIME
		86
		87	The timestamp of the server start (so not actually an uptime).
		88
		89	=item $cf::RUNTIME
		90
		91	The time this server has run, starts at 0 and is increased by $cf::TICK on
		92	every server tick.
		93
		94	=item $cf::LIBDIR
		95
		96	The perl library directory, where extensions and cf-specific modules can
		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.
		102
		103	=item $cf::TICK
		104
		105	The interval between server ticks, in seconds.
		106
		107	=item %cf::CFG
		108
		109	Configuration for the server, loaded from C</etc/crossfire/config>, or
		110	from wherever your confdir points to.
		111
		112	=back
		113
		114	=cut
25		115
26	BEGIN {	116	BEGIN {
27	*CORE::GLOBAL::warn = sub {	117	*CORE::GLOBAL::warn = sub {
28	my $msg = join "", @_;	118	my $msg = join "", @_;
		119	utf8::encode $msg;
		120
29	$msg .= "\n"	121	$msg .= "\n"
30	unless $msg =~ /\n$/;	122	unless $msg =~ /\n$/;
31		123
32	print STDERR "cfperl: $msg";
33	LOG llevError, "cfperl: $msg";	124	LOG llevError, "cfperl: $msg";
34	};	125	};
35	}	126	}
36		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';
37	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
38		134
39	# 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
40	# within the Safe compartment.	136	# within the Safe compartment.
41	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	137	for my $pkg (qw(
		138	cf::global cf::attachable
		139	cf::object cf::object::player
		140	cf::client cf::player
		141	cf::arch cf::living
		142	cf::map cf::party cf::region
		143	)) {
42	no strict 'refs';	144	no strict 'refs';
43	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
44	}	146	}
45		147
46	$Event::DIED = sub {	148	$Event::DIED = sub {
…		…
48	};	150	};
49		151
50	my %ext_pkg;	152	my %ext_pkg;
51	my @exts;	153	my @exts;
52	my @hook;	154	my @hook;
53	my %command;
54	my %extcmd;
55		155
56	#############################################################################	156	=head2 UTILITY FUNCTIONS
57	# utility functions	157
		158	=over 4
		159
		160	=cut
58		161
59	use JSON::Syck (); # TODO# replace by JSON::PC once working	162	use JSON::Syck (); # TODO# replace by JSON::PC once working
		163
		164	=item $ref = cf::from_json $json
		165
		166	Converts a JSON string into the corresponding perl data structure.
		167
		168	=cut
60		169
61	sub from_json($) {	170	sub from_json($) {
62	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
63	JSON::Syck::Load $_[0]	172	JSON::Syck::Load $_[0]
64	}	173	}
65		174
		175	=item $json = cf::to_json $ref
		176
		177	Converts a perl data structure into its JSON representation.
		178
		179	=cut
		180
66	sub to_json($) {	181	sub to_json($) {
67	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
68	JSON::Syck::Dump $_[0]	183	JSON::Syck::Dump $_[0]
69	}	184	}
70		185
		186	=item cf::sync_job { BLOCK }
		187
		188	The design of crossfire+ requires that the main coro ($Coro::main) is
		189	always able to handle events or runnable, as crossfire+ is only partly
		190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		191
		192	If it must be done, put the blocking parts into C<sync_job>. This will run
		193	the given BLOCK in another coroutine while waiting for the result. The
		194	server will be frozen during this time, so the block should either finish
		195	fast or be very important.
		196
		197	=cut
		198
		199	sub sync_job(&) {
		200	my ($job) = @_;
		201
		202	my $busy = 1;
		203	my @res;
		204
		205	my $coro = Coro::async {
		206	@res = eval { $job->() };
		207	warn $@ if $@;
		208	undef $busy;
		209	};
		210
		211	if ($Coro::current == $Coro::main) {
		212	# TODO: use suspend/resume instead
		213	local $FREEZE = 1;
		214	$coro->prio (Coro::PRIO_MAX);
		215	while ($busy) {
		216	Coro::cede_notself;
		217	Event::one_event unless Coro::nready;
		218	}
		219	} else {
		220	$coro->join;
		221	}
		222
		223	wantarray ? @res : $res[0]
		224	}
		225
		226	=item $coro = cf::coro { BLOCK }
		227
		228	Creates and returns a new coro. This coro is automcatially being canceled
		229	when the extension calling this is being unloaded.
		230
		231	=cut
		232
		233	sub coro(&) {
		234	my $cb = shift;
		235
		236	my $coro; $coro = async {
		237	eval {
		238	$cb->();
		239	};
		240	warn $@ if $@;
		241	};
		242
		243	$coro->on_destroy (sub {
		244	delete $EXT_CORO{$coro+0};
		245	});
		246	$EXT_CORO{$coro+0} = $coro;
		247
		248	$coro
		249	}
		250
		251	sub write_runtime {
		252	my $runtime = cf::localdir . "/runtime";
		253
		254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		255	or return;
		256
		257	my $value = $cf::RUNTIME;
		258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		259	and return;
		260
		261	aio_fsync $fh
		262	and return;
		263
		264	close $fh
		265	or return;
		266
		267	aio_rename "$runtime~", $runtime
		268	and return;
		269
		270	1
		271	}
		272
		273	=back
		274
		275	=cut
		276
71	#############################################################################	277	#############################################################################
72	# "new" plug-in system
73		278
74	=head3 EVENTS AND OBJECT ATTACHMENTS	279	package cf::path;
		280
		281	sub new {
		282	my ($class, $path, $base) = @_;
		283
		284	$path = $path->as_string if ref $path;
		285
		286	my $self = bless { }, $class;
		287
		288	if ($path =~ s{^\?random/}{}) {
		289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		290	$self->{random} = cf::from_json $data;
		291	} else {
		292	if ($path =~ s{^~([^/]+)?}{}) {
		293	$self->{user_rel} = 1;
		294
		295	if (defined $1) {
		296	$self->{user} = $1;
		297	} elsif ($base =~ m{^~([^/]+)/}) {
		298	$self->{user} = $1;
		299	} else {
		300	warn "cannot resolve user-relative path without user <$path,$base>\n";
		301	}
		302	} elsif ($path =~ /^\//) {
		303	# already absolute
		304	} else {
		305	$base =~ s{[^/]+/?$}{};
		306	return $class->new ("$base/$path");
		307	}
		308
		309	for ($path) {
		310	redo if s{/\.?/}{/};
		311	redo if s{/[^/]+/\.\./}{/};
		312	}
		313	}
		314
		315	$self->{path} = $path;
		316
		317	$self
		318	}
		319
		320	# the name / primary key / in-game path
		321	sub as_string {
		322	my ($self) = @_;
		323
		324	$self->{user_rel} ? "~$self->{user}$self->{path}"
		325	: $self->{random} ? "?random/$self->{path}"
		326	: $self->{path}
		327	}
		328
		329	# the displayed name, this is a one way mapping
		330	sub visible_name {
		331	my ($self) = @_;
		332
		333	# if (my $rmp = $self->{random}) {
		334	# # todo: be more intelligent about this
		335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		336	# } else {
		337	$self->as_string
		338	# }
		339	}
		340
		341	# escape the /'s in the path
		342	sub _escaped_path {
		343	# ∕ is U+2215
		344	(my $path = $_[0]{path}) =~ s/\//∕/g;
		345	$path
		346	}
		347
		348	# the original (read-only) location
		349	sub load_path {
		350	my ($self) = @_;
		351
		352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		353	}
		354
		355	# the temporary/swap location
		356	sub save_path {
		357	my ($self) = @_;
		358
		359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		362	}
		363
		364	# the unique path, might be eq to save_path
		365	sub uniq_path {
		366	my ($self) = @_;
		367
		368	$self->{user_rel} || $self->{random}
		369	? undef
		370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		371	}
		372
		373	# return random map parameters, or undef
		374	sub random_map_params {
		375	my ($self) = @_;
		376
		377	$self->{random}
		378	}
		379
		380	# this is somewhat ugly, but style maps do need special treatment
		381	sub is_style_map {
		382	$_[0]{path} =~ m{^/styles/}
		383	}
		384
		385	package cf;
		386
		387	#############################################################################
		388
		389	=head2 ATTACHABLE OBJECTS
		390
		391	Many objects in crossfire are so-called attachable objects. That means you can
		392	attach callbacks/event handlers (a collection of which is called an "attachment")
		393	to it. All such attachable objects support the following methods.
		394
		395	In the following description, CLASS can be any of C<global>, C<object>
		396	C<player>, C<client> or C<map> (i.e. the attachable objects in
		397	crossfire+).
75		398
76	=over 4	399	=over 4
77		400
78	=item $object->attach ($attachment, key => $value...)
79
80	=item $object->detach ($attachment)
81
82	Attach/detach a pre-registered attachment to an object.
83
84	=item $player->attach ($attachment, key => $value...)
85
86	=item $player->detach ($attachment)
87
88	Attach/detach a pre-registered attachment to a player.
89
90	=item $map->attach ($attachment, key => $value...)	401	=item $attachable->attach ($attachment, key => $value...)
91		402
92	=item $map->detach ($attachment)	403	=item $attachable->detach ($attachment)
93		404
94	Attach/detach a pre-registered attachment to a map.	405	Attach/detach a pre-registered attachment to a specific object and give it
		406	the specified key/value pairs as arguments.
95		407
96	=item $bool = $object->attached ($name)	408	Example, attach a minesweeper attachment to the given object, making it a
		409	10x10 minesweeper game:
97		410
98	=item $bool = $player->attached ($name)	411	$obj->attach (minesweeper => width => 10, height => 10);
99		412
100	=item $bool = $map->attached ($name)	413	=item $bool = $attachable->attached ($name)
101		414
102	Checks wether the named attachment is currently attached to the object.	415	Checks wether the named attachment is currently attached to the object.
103		416
104	=item cf::attach_global ...	417	=item cf::CLASS->attach ...
105		418
106	Attach handlers for global events.	419	=item cf::CLASS->detach ...
107		420
108	This and all following C<attach_*>-functions expect any number of the	421	Define an anonymous attachment and attach it to all objects of the given
109	following handler/hook descriptions:	422	CLASS. See the next function for an explanation of its arguments.
		423
		424	You can attach to global events by using the C<cf::global> class.
		425
		426	Example, log all player logins:
		427
		428	cf::player->attach (
		429	on_login => sub {
		430	my ($pl) = @_;
		431	...
		432	},
		433	);
		434
		435	Example, attach to the jeweler skill:
		436
		437	cf::object->attach (
		438	type => cf::SKILL,
		439	subtype => cf::SK_JEWELER,
		440	on_use_skill => sub {
		441	my ($sk, $ob, $part, $dir, $msg) = @_;
		442	...
		443	},
		444	);
		445
		446	=item cf::CLASS::attachment $name, ...
		447
		448	Register an attachment by C<$name> through which attachable objects of the
		449	given CLASS can refer to this attachment.
		450
		451	Some classes such as crossfire maps and objects can specify attachments
		452	that are attached at load/instantiate time, thus the need for a name.
		453
		454	These calls expect any number of the following handler/hook descriptions:
110		455
111	=over 4	456	=over 4
112		457
113	=item prio => $number	458	=item prio => $number
114		459
…		…
116	by another C<prio> setting). Lower priority handlers get executed	461	by another C<prio> setting). Lower priority handlers get executed
117	earlier. The default priority is C<0>, and many built-in handlers are	462	earlier. The default priority is C<0>, and many built-in handlers are
118	registered at priority C<-1000>, so lower priorities should not be used	463	registered at priority C<-1000>, so lower priorities should not be used
119	unless you know what you are doing.	464	unless you know what you are doing.
120		465
		466	=item type => $type
		467
		468	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		469	given type of objects only (the additional parameter C<subtype> can be
		470	used to further limit to the given subtype).
		471
121	=item on_I<event> => \&cb	472	=item on_I<event> => \&cb
122		473
123	Call the given code reference whenever the named event happens (event is	474	Call the given code reference whenever the named event happens (event is
124	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	475	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
125	handlers are recognised generally depends on the type of object these	476	handlers are recognised generally depends on the type of object these
…		…
134	package and register them. Only handlers for eevents supported by the	485	package and register them. Only handlers for eevents supported by the
135	object/class are recognised.	486	object/class are recognised.
136		487
137	=back	488	=back
138		489
139	=item cf::attach_to_type $object_type, $subtype, ...	490	Example, define an attachment called "sockpuppet" that calls the given
		491	event handler when a monster attacks:
140		492
141	Attach handlers for a specific object type (e.g. TRANSPORT) and	493	cf::object::attachment sockpuppet =>
142	subtype. If C<$subtype> is zero or undef, matches all objects of the given	494	on_skill_attack => sub {
143	type.	495	my ($self, $victim) = @_;
144		496	...
145	=item cf::attach_to_objects ...
146
147	Attach handlers to all objects. Do not use this except for debugging or
148	very rare events, as handlers are (obviously) called for I<all> objects in
149	the game.
150
151	=item cf::attach_to_players ...
152
153	Attach handlers to all players.
154
155	=item cf::attach_to_maps ...
156
157	Attach handlers to all maps.
158
159	=item cf:register_attachment $name, ...
160
161	Register an attachment by name through which objects can refer to this
162	attachment.
163
164	=item cf:register_player_attachment $name, ...
165
166	Register an attachment by name through which players can refer to this
167	attachment.
168
169	=item cf:register_map_attachment $name, ...
170
171	Register an attachment by name through which maps can refer to this
172	attachment.
173
174	=cut
175
176	# the following variables are defined in .xs and must not be re-created
177	our @CB_GLOBAL = (); # registry for all global events
178	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
179	our @CB_PLAYER = ();
180	our @CB_TYPE = (); # registry for type (cf-object class) based events
181	our @CB_MAP = ();
182
183	my %attachment;
184
185	sub _attach_cb($\%$$$) {
186	my ($registry, $undo, $event, $prio, $cb) = @_;
187
188	use sort 'stable';
189
190	$cb = [$prio, $cb];
191
192	@{$registry->[$event]} = sort
193	{ $a->[0] cmp $b->[0] }
194	@{$registry->[$event] || []}, $cb;
195
196	push @{$undo->{cb}}, [$event, $cb];
197	}
198
199	# attach handles attaching event callbacks
200	# the only thing the caller has to do is pass the correct
201	# registry (== where the callback attaches to).
202	sub _attach(\@$@) {
203	my ($registry, $klass, @arg) = @_;
204
205	my $prio = 0;
206
207	my %undo = (
208	registry => $registry,
209	cb => [],
210	);
211
212	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
213
214	while (@arg) {
215	my $type = shift @arg;
216
217	if ($type eq "prio") {
218	$prio = shift @arg;
219
220	} elsif ($type eq "package") {
221	my $pkg = shift @arg;
222
223	while (my ($name, $id) = each %cb_id) {
224	if (my $cb = $pkg->can ($name)) {
225	_attach_cb $registry, %undo, $id, $prio, $cb;
226	}
227	}	497	}
228
229	} elsif (exists $cb_id{$type}) {
230	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
231
232	} elsif (ref $type) {
233	warn "attaching objects not supported, ignoring.\n";
234
235	} else {
236	shift @arg;
237	warn "attach argument '$type' not supported, ignoring.\n";
238	}
239	}
240
241	\%undo
242	}
243
244	sub _attach_attachment {
245	my ($obj, $name, %arg) = @_;
246
247	return if exists $obj->{_attachment}{$name};
248
249	my $res;
250
251	if (my $attach = $attachment{$name}) {
252	my $registry = $obj->registry;
253
254	for (@$attach) {
255	my ($klass, @attach) = @$_;
256	$res = _attach @$registry, $klass, @attach;
257	}
258
259	$obj->{$name} = \%arg;
260	} else {
261	warn "object uses attachment '$name' that is not available, postponing.\n";
262	}
263
264	$obj->{_attachment}{$name} = undef;
265
266	$res->{attachment} = $name;
267	$res
268	}
269
270	*cf::object::attach =
271	*cf::player::attach =
272	*cf::map::attach = sub {
273	my ($obj, $name, %arg) = @_;
274
275	_attach_attachment $obj, $name, %arg;
276	};
277
278	# all those should be optimised
279	*cf::object::detach =
280	*cf::player::detach =
281	*cf::map::detach = sub {
282	my ($obj, $name) = @_;
283
284	delete $obj->{_attachment}{$name};
285	reattach ($obj);
286	};
287
288	*cf::object::attached =
289	*cf::player::attached =
290	*cf::map::attached = sub {
291	my ($obj, $name) = @_;
292
293	exists $obj->{_attachment}{$name}
294	};
295
296	sub attach_global {
297	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
298	}
299
300	sub attach_to_type {
301	my $type = shift;
302	my $subtype = shift;
303
304	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
305	}
306
307	sub attach_to_objects {
308	_attach @CB_OBJECT, KLASS_OBJECT, @_
309	}
310
311	sub attach_to_players {
312	_attach @CB_PLAYER, KLASS_PLAYER, @_
313	}
314
315	sub attach_to_maps {
316	_attach @CB_MAP, KLASS_MAP, @_
317	}
318
319	sub register_attachment {
320	my $name = shift;
321
322	$attachment{$name} = [[KLASS_OBJECT, @_]];
323	}
324
325	sub register_player_attachment {
326	my $name = shift;
327
328	$attachment{$name} = [[KLASS_PLAYER, @_]];
329	}
330
331	sub register_map_attachment {
332	my $name = shift;
333
334	$attachment{$name} = [[KLASS_MAP, @_]];
335	}
336
337	our $override;
338	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
339
340	sub override {
341	$override = 1;
342	@invoke_results = ();
343	}
344
345	sub do_invoke {
346	my $event = shift;
347	my $callbacks = shift;
348
349	@invoke_results = ();
350
351	local $override;
352
353	for (@$callbacks) {
354	eval { &{$_->[1]} };
355
356	if ($@) {
357	warn "$@";
358	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
359	override;
360	}
361
362	return 1 if $override;
363	}
364
365	0	498	}
366	}
367		499
368	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	500	=item $attachable->valid
369
370	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
371
372	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
373
374	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
375
376	Generate a global/object/player/map-specific event with the given arguments.
377
378	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
379	removed in future versions), and there is no public API to access override
380	results (if you must, access C<@cf::invoke_results> directly).
381
382	=back
383
384	=head2 methods valid for all pointers
385
386	=over 4
387
388	=item $object->valid
389
390	=item $player->valid
391
392	=item $map->valid
393		501
394	Just because you have a perl object does not mean that the corresponding	502	Just because you have a perl object does not mean that the corresponding
395	C-level object still exists. If you try to access an object that has no	503	C-level object still exists. If you try to access an object that has no
396	valid C counterpart anymore you get an exception at runtime. This method	504	valid C counterpart anymore you get an exception at runtime. This method
397	can be used to test for existence of the C object part without causing an	505	can be used to test for existence of the C object part without causing an
398	exception.	506	exception.
399		507
		508	=cut
		509
		510	# the following variables are defined in .xs and must not be re-created
		511	our @CB_GLOBAL = (); # registry for all global events
		512	our @CB_ATTACHABLE = (); # registry for all attachables
		513	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		514	our @CB_PLAYER = ();
		515	our @CB_CLIENT = ();
		516	our @CB_TYPE = (); # registry for type (cf-object class) based events
		517	our @CB_MAP = ();
		518
		519	my %attachment;
		520
		521	sub _attach_cb($$$$) {
		522	my ($registry, $event, $prio, $cb) = @_;
		523
		524	use sort 'stable';
		525
		526	$cb = [$prio, $cb];
		527
		528	@{$registry->[$event]} = sort
		529	{ $a->[0] cmp $b->[0] }
		530	@{$registry->[$event] || []}, $cb;
		531	}
		532
		533	# hack
		534	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		535
		536	# attach handles attaching event callbacks
		537	# the only thing the caller has to do is pass the correct
		538	# registry (== where the callback attaches to).
		539	sub _attach {
		540	my ($registry, $klass, @arg) = @_;
		541
		542	my $object_type;
		543	my $prio = 0;
		544	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		545
		546	#TODO: get rid of this hack
		547	if ($attachable_klass{$klass}) {
		548	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		549	}
		550
		551	while (@arg) {
		552	my $type = shift @arg;
		553
		554	if ($type eq "prio") {
		555	$prio = shift @arg;
		556
		557	} elsif ($type eq "type") {
		558	$object_type = shift @arg;
		559	$registry = $CB_TYPE[$object_type] ||= [];
		560
		561	} elsif ($type eq "subtype") {
		562	defined $object_type or Carp::croak "subtype specified without type";
		563	my $object_subtype = shift @arg;
		564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		565
		566	} elsif ($type eq "package") {
		567	my $pkg = shift @arg;
		568
		569	while (my ($name, $id) = each %cb_id) {
		570	if (my $cb = $pkg->can ($name)) {
		571	_attach_cb $registry, $id, $prio, $cb;
		572	}
		573	}
		574
		575	} elsif (exists $cb_id{$type}) {
		576	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		577
		578	} elsif (ref $type) {
		579	warn "attaching objects not supported, ignoring.\n";
		580
		581	} else {
		582	shift @arg;
		583	warn "attach argument '$type' not supported, ignoring.\n";
		584	}
		585	}
		586	}
		587
		588	sub _object_attach {
		589	my ($obj, $name, %arg) = @_;
		590
		591	return if exists $obj->{_attachment}{$name};
		592
		593	if (my $attach = $attachment{$name}) {
		594	my $registry = $obj->registry;
		595
		596	for (@$attach) {
		597	my ($klass, @attach) = @$_;
		598	_attach $registry, $klass, @attach;
		599	}
		600
		601	$obj->{$name} = \%arg;
		602	} else {
		603	warn "object uses attachment '$name' that is not available, postponing.\n";
		604	}
		605
		606	$obj->{_attachment}{$name} = undef;
		607	}
		608
		609	sub cf::attachable::attach {
		610	if (ref $_[0]) {
		611	_object_attach @_;
		612	} else {
		613	_attach shift->_attach_registry, @_;
		614	}
		615	};
		616
		617	# all those should be optimised
		618	sub cf::attachable::detach {
		619	my ($obj, $name) = @_;
		620
		621	if (ref $obj) {
		622	delete $obj->{_attachment}{$name};
		623	reattach ($obj);
		624	} else {
		625	Carp::croak "cannot, currently, detach class attachments";
		626	}
		627	};
		628
		629	sub cf::attachable::attached {
		630	my ($obj, $name) = @_;
		631
		632	exists $obj->{_attachment}{$name}
		633	}
		634
		635	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		636	eval "#line " . __LINE__ . " 'cf.pm'
		637	sub cf::\L$klass\E::_attach_registry {
		638	(\\\@CB_$klass, KLASS_$klass)
		639	}
		640
		641	sub cf::\L$klass\E::attachment {
		642	my \$name = shift;
		643
		644	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		645	}
		646	";
		647	die if $@;
		648	}
		649
		650	our $override;
		651	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		652
		653	sub override {
		654	$override = 1;
		655	@invoke_results = ();
		656	}
		657
		658	sub do_invoke {
		659	my $event = shift;
		660	my $callbacks = shift;
		661
		662	@invoke_results = ();
		663
		664	local $override;
		665
		666	for (@$callbacks) {
		667	eval { &{$_->[1]} };
		668
		669	if ($@) {
		670	warn "$@";
		671	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		672	override;
		673	}
		674
		675	return 1 if $override;
		676	}
		677
		678	0
		679	}
		680
		681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		682
		683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		684
		685	Generate an object-specific event with the given arguments.
		686
		687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		688	removed in future versions), and there is no public API to access override
		689	results (if you must, access C<@cf::invoke_results> directly).
		690
400	=back	691	=back
401		692
402	=cut	693	=cut
403
404	*cf::object::valid =
405	*cf::player::valid =
406	*cf::map::valid = \&cf::_valid;
407		694
408	#############################################################################	695	#############################################################################
409	# object support	696	# object support
410		697
411	sub instantiate {
412	my ($obj, $data) = @_;
413
414	$data = from_json $data;
415
416	for (@$data) {
417	my ($name, $args) = @$_;
418
419	$obj->attach ($name, %{$args || {} });
420	}
421	}
422
423	# basically do the same as instantiate, without calling instantiate
424	sub reattach {	698	sub reattach {
		699	# basically do the same as instantiate, without calling instantiate
425	my ($obj) = @_;	700	my ($obj) = @_;
		701
426	my $registry = $obj->registry;	702	my $registry = $obj->registry;
427		703
428	@$registry = ();	704	@$registry = ();
429		705
430	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	706	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
431		707
432	for my $name (keys %{ $obj->{_attachment} || {} }) {	708	for my $name (keys %{ $obj->{_attachment} || {} }) {
433	if (my $attach = $attachment{$name}) {	709	if (my $attach = $attachment{$name}) {
434	for (@$attach) {	710	for (@$attach) {
435	my ($klass, @attach) = @$_;	711	my ($klass, @attach) = @$_;
436	_attach @$registry, $klass, @attach;	712	_attach $registry, $klass, @attach;
437	}	713	}
438	} else {	714	} else {
439	warn "object uses attachment '$name' that is not available, postponing.\n";	715	warn "object uses attachment '$name' that is not available, postponing.\n";
440	}	716	}
441	}	717	}
442	}	718	}
443		719
444	sub object_freezer_save {	720	cf::attachable->attach (
445	my ($filename, $rdata, $objs) = @_;
446
447	if (length $$rdata) {
448	warn sprintf "saving %s (%d,%d)\n",
449	$filename, length $$rdata, scalar @$objs;
450
451	if (open my $fh, ">:raw", "$filename~") {
452	chmod SAVE_MODE, $fh;
453	syswrite $fh, $$rdata;
454	close $fh;
455
456	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
457	chmod SAVE_MODE, $fh;
458	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
459	close $fh;
460	rename "$filename.pst~", "$filename.pst";
461	} else {
462	unlink "$filename.pst";
463	}
464
465	rename "$filename~", $filename;
466	} else {
467	warn "FATAL: $filename~: $!\n";
468	}
469	} else {
470	unlink $filename;
471	unlink "$filename.pst";
472	}
473	}
474
475	sub object_thawer_load {
476	my ($filename) = @_;
477
478	local $/;
479
480	my $av;
481
482	#TODO: use sysread etc.
483	if (open my $data, "<:raw:perlio", $filename) {
484	$data = <$data>;
485	if (open my $pst, "<:raw:perlio", "$filename.pst") {
486	$av = eval { (Storable::thaw <$pst>)->{objs} };
487	}
488	return ($data, $av);
489	}
490
491	()
492	}
493
494	attach_to_objects
495	prio => -1000000,	721	prio => -1000000,
		722	on_instantiate => sub {
		723	my ($obj, $data) = @_;
		724
		725	$data = from_json $data;
		726
		727	for (@$data) {
		728	my ($name, $args) = @$_;
		729
		730	$obj->attach ($name, %{$args || {} });
		731	}
		732	},
		733	on_reattach => \&reattach,
496	on_clone => sub {	734	on_clone => sub {
497	my ($src, $dst) = @_;	735	my ($src, $dst) = @_;
498		736
499	@{$dst->registry} = @{$src->registry};	737	@{$dst->registry} = @{$src->registry};
500		738
501	%$dst = %$src;	739	%$dst = %$src;
502		740
503	%{$dst->{_attachment}} = %{$src->{_attachment}}	741	%{$dst->{_attachment}} = %{$src->{_attachment}}
504	if exists $src->{_attachment};	742	if exists $src->{_attachment};
505	},	743	},
506	;	744	);
		745
		746	sub object_freezer_save {
		747	my ($filename, $rdata, $objs) = @_;
		748
		749	sync_job {
		750	if (length $$rdata) {
		751	warn sprintf "saving %s (%d,%d)\n",
		752	$filename, length $$rdata, scalar @$objs;
		753
		754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		755	chmod SAVE_MODE, $fh;
		756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		757	aio_fsync $fh;
		758	close $fh;
		759
		760	if (@$objs) {
		761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		762	chmod SAVE_MODE, $fh;
		763	my $data = Storable::nfreeze { version => 1, objs => $objs };
		764	aio_write $fh, 0, (length $data), $data, 0;
		765	aio_fsync $fh;
		766	close $fh;
		767	aio_rename "$filename.pst~", "$filename.pst";
		768	}
		769	} else {
		770	aio_unlink "$filename.pst";
		771	}
		772
		773	aio_rename "$filename~", $filename;
		774	} else {
		775	warn "FATAL: $filename~: $!\n";
		776	}
		777	} else {
		778	aio_unlink $filename;
		779	aio_unlink "$filename.pst";
		780	}
		781	}
		782	}
		783
		784	sub object_freezer_as_string {
		785	my ($rdata, $objs) = @_;
		786
		787	use Data::Dumper;
		788
		789	$$rdata . Dumper $objs
		790	}
		791
		792	sub object_thawer_load {
		793	my ($filename) = @_;
		794
		795	my ($data, $av);
		796
		797	(aio_load $filename, $data) >= 0
		798	or return;
		799
		800	unless (aio_stat "$filename.pst") {
		801	(aio_load "$filename.pst", $av) >= 0
		802	or return;
		803	$av = eval { (Storable::thaw <$av>)->{objs} };
		804	}
		805
		806	return ($data, $av);
		807	}
507		808
508	#############################################################################	809	#############################################################################
509	# old plug-in events	810	# command handling &c
510		811
511	sub inject_event {	812	=item cf::register_command $name => \&callback($ob,$args);
512	my $extension = shift;
513	my $event_code = shift;
514		813
515	my $cb = $hook[$event_code]{$extension}	814	Register a callback for execution when the client sends the user command
516	or return;	815	$name.
517		816
518	&$cb	817	=cut
519	}
520
521	sub inject_global_event {
522	my $event = shift;
523
524	my $cb = $hook[$event]
525	or return;
526
527	List::Util::max map &$_, values %$cb
528	}
529
530	sub inject_command {
531	my ($name, $obj, $params) = @_;
532
533	for my $cmd (@{ $command{$name} }) {
534	$cmd->[1]->($obj, $params);
535	}
536
537	-1
538	}
539		818
540	sub register_command {	819	sub register_command {
541	my ($name, $time, $cb) = @_;	820	my ($name, $cb) = @_;
542		821
543	my $caller = caller;	822	my $caller = caller;
544	#warn "registering command '$name/$time' to '$caller'";	823	#warn "registering command '$name/$time' to '$caller'";
545		824
546	push @{ $command{$name} }, [$time, $cb, $caller];	825	push @{ $COMMAND{$name} }, [$caller, $cb];
547	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
548	}	826	}
		827
		828	=item cf::register_extcmd $name => \&callback($pl,$packet);
		829
		830	Register a callbackf ro execution when the client sends an extcmd packet.
		831
		832	If the callback returns something, it is sent back as if reply was being
		833	called.
		834
		835	=cut
549		836
550	sub register_extcmd {	837	sub register_extcmd {
551	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
552		839
553	my $caller = caller;	840	my $caller = caller;
554	#warn "registering extcmd '$name' to '$caller'";	841	#warn "registering extcmd '$name' to '$caller'";
555		842
556	$extcmd{$name} = [$cb, $caller];	843	$EXTCMD{$name} = [$cb, $caller];
557	}	844	}
		845
		846	cf::player->attach (
		847	on_command => sub {
		848	my ($pl, $name, $params) = @_;
		849
		850	my $cb = $COMMAND{$name}
		851	or return;
		852
		853	for my $cmd (@$cb) {
		854	$cmd->[1]->($pl->ob, $params);
		855	}
		856
		857	cf::override;
		858	},
		859	on_extcmd => sub {
		860	my ($pl, $buf) = @_;
		861
		862	my $msg = eval { from_json $buf };
		863
		864	if (ref $msg) {
		865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		866	if (my %reply = $cb->[0]->($pl, $msg)) {
		867	$pl->ext_reply ($msg->{msgid}, %reply);
		868	}
		869	}
		870	} else {
		871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		872	}
		873
		874	cf::override;
		875	},
		876	);
558		877
559	sub register {	878	sub register {
560	my ($base, $pkg) = @_;	879	my ($base, $pkg) = @_;
561		880
562	#TODO	881	#TODO
…		…
581	. "#line 1 \"$path\"\n{\n"	900	. "#line 1 \"$path\"\n{\n"
582	. (do { local $/; <$fh> })	901	. (do { local $/; <$fh> })
583	. "\n};\n1";	902	. "\n};\n1";
584		903
585	eval $source	904	eval $source
586	or die "$path: $@";	905	or die $@ ? "$path: $@\n"
		906	: "extension disabled.\n";
587		907
588	push @exts, $pkg;	908	push @exts, $pkg;
589	$ext_pkg{$base} = $pkg;	909	$ext_pkg{$base} = $pkg;
590		910
591	# no strict 'refs';	911	# no strict 'refs';
…		…
604	# for my $idx (0 .. $#PLUGIN_EVENT) {	924	# for my $idx (0 .. $#PLUGIN_EVENT) {
605	# delete $hook[$idx]{$pkg};	925	# delete $hook[$idx]{$pkg};
606	# }	926	# }
607		927
608	# remove commands	928	# remove commands
609	for my $name (keys %command) {	929	for my $name (keys %COMMAND) {
610	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
611		931
612	if (@cb) {	932	if (@cb) {
613	$command{$name} = \@cb;	933	$COMMAND{$name} = \@cb;
614	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
615	} else {	934	} else {
616	delete $command{$name};
617	delete $COMMAND{"$name\000"};	935	delete $COMMAND{$name};
618	}	936	}
619	}	937	}
620		938
621	# remove extcmds	939	# remove extcmds
622	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
623	delete $extcmd{$name};	941	delete $EXTCMD{$name};
624	}	942	}
625		943
626	if (my $cb = $pkg->can ("unload")) {	944	if (my $cb = $pkg->can ("unload")) {
627	eval {	945	eval {
628	$cb->($pkg);	946	$cb->($pkg);
…		…
632		950
633	Symbol::delete_package $pkg;	951	Symbol::delete_package $pkg;
634	}	952	}
635		953
636	sub load_extensions {	954	sub load_extensions {
637	my $LIBDIR = maps_directory "perl";
638
639	for my $ext (<$LIBDIR/*.ext>) {	955	for my $ext (<$LIBDIR/*.ext>) {
640	next unless -r $ext;	956	next unless -r $ext;
641	eval {	957	eval {
642	load_extension $ext;	958	load_extension $ext;
643	1	959	1
644	} or warn "$ext not loaded: $@";	960	} or warn "$ext not loaded: $@";
645	}	961	}
646	}	962	}
647		963
648	#############################################################################	964	#############################################################################
649	# extcmd framework, basically convert ext <msg>
650	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
651
652	attach_to_players
653	on_extcmd => sub {
654	my ($pl, $buf) = @_;
655
656	my $msg = eval { from_json $buf };
657
658	if (ref $msg) {
659	if (my $cb = $extcmd{$msg->{msgtype}}) {
660	if (my %reply = $cb->[0]->($pl, $msg)) {
661	$pl->ext_reply ($msg->{msgid}, %reply);
662	}
663	}
664	} else {
665	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
666	}
667
668	cf::override;
669	},
670	;
671
672	#############################################################################
673	# load/save/clean perl data associated with a map	965	# load/save/clean perl data associated with a map
674		966
675	*cf::mapsupport::on_clean = sub {	967	*cf::mapsupport::on_clean = sub {
676	my ($map) = @_;	968	my ($map) = @_;
677		969
…		…
679	defined $path or return;	971	defined $path or return;
680		972
681	unlink "$path.pst";	973	unlink "$path.pst";
682	};	974	};
683		975
684	attach_to_maps prio => -10000, package => cf::mapsupport::;	976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
685		977
686	#############################################################################	978	#############################################################################
687	# load/save perl data associated with player->ob objects	979	# load/save perl data associated with player->ob objects
688		980
689	sub all_objects(@) {	981	sub all_objects(@) {
690	@_, map all_objects ($_->inv), @_	982	@_, map all_objects ($_->inv), @_
691	}	983	}
692		984
693	# TODO: compatibility cruft, remove when no longer needed	985	# TODO: compatibility cruft, remove when no longer needed
694	attach_to_players	986	cf::player->attach (
695	on_load => sub {	987	on_load => sub {
696	my ($pl, $path) = @_;	988	my ($pl, $path) = @_;
697		989
698	for my $o (all_objects $pl->ob) {	990	for my $o (all_objects $pl->ob) {
699	if (my $value = $o->get_ob_key_value ("_perl_data")) {	991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
701		993
702	%$o = %{ Storable::thaw pack "H*", $value };	994	%$o = %{ Storable::thaw pack "H*", $value };
703	}	995	}
704	}	996	}
705	},	997	},
706	;	998	);
707		999
708	#############################################################################	1000	#############################################################################
709	# core extensions - in perl	1001
		1002	=head2 CORE EXTENSIONS
		1003
		1004	Functions and methods that extend core crossfire objects.
		1005
		1006	=head3 cf::player
		1007
		1008	=over 4
710		1009
711	=item cf::player::exists $login	1010	=item cf::player::exists $login
712		1011
713	Returns true when the given account exists.	1012	Returns true when the given account exists.
714		1013
…		…
717	sub cf::player::exists($) {	1016	sub cf::player::exists($) {
718	cf::player::find $_[0]	1017	cf::player::find $_[0]
719	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
720	}	1019	}
721		1020
		1021	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1022
		1023	Sends an ext reply to the player.
		1024
		1025	=cut
		1026
		1027	sub cf::player::ext_reply($$$%) {
		1028	my ($self, $id, %msg) = @_;
		1029
		1030	$msg{msgid} = $id;
		1031
		1032	$self->send ("ext " . to_json \%msg);
		1033	}
		1034
		1035	=back
		1036
		1037
		1038	=head3 cf::map
		1039
		1040	=over 4
		1041
		1042	=cut
		1043
		1044	package cf::map;
		1045
		1046	use Fcntl;
		1047	use Coro::AIO;
		1048
		1049	our $MAX_RESET = 7200;
		1050	our $DEFAULT_RESET = 3600;
		1051	$MAX_RESET = 10;#d#
		1052	$DEFAULT_RESET = 10;#d#
		1053
		1054	sub generate_random_map {
		1055	my ($path, $rmp) = @_;
		1056
		1057	# mit "rum" bekleckern, nicht
		1058	cf::map::_create_random_map
		1059	$path,
		1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1063	$rmp->{exit_on_final_map},
		1064	$rmp->{xsize}, $rmp->{ysize},
		1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1070	(cf::region::find $rmp->{region})
		1071	}
		1072
		1073	# and all this just because we cannot iterate over
		1074	# all maps in C++...
		1075	sub change_all_map_light {
		1076	my ($change) = @_;
		1077
		1078	$_->change_map_light ($change) for values %cf::MAP;
		1079	}
		1080
		1081	sub try_load_header($) {
		1082	my ($path) = @_;
		1083
		1084	utf8::encode $path;
		1085	aio_open $path, O_RDONLY, 0
		1086	or return;
		1087
		1088	my $map = cf::map::new
		1089	or return;
		1090
		1091	$map->load_header ($path)
		1092	or return;
		1093
		1094	$map->{load_path} = $path;
		1095	use Data::Dumper; warn Dumper $map;#d#
		1096
		1097	$map
		1098	}
		1099
		1100	sub find_map {
		1101	my ($path, $origin) = @_;
		1102
		1103	#warn "find_map<$path,$origin>\n";#d#
		1104
		1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;
		1106	my $key = $path->as_string;
		1107
		1108	$cf::MAP{$key} || do {
		1109	# do it the slow way
		1110	my $map = try_load_header $path->save_path;
		1111
		1112	if ($map) {
		1113	# safety
		1114	$map->{instantiate_time} = $cf::RUNTIME
		1115	if $map->{instantiate_time} > $cf::RUNTIME;
		1116	} else {
		1117	if (my $rmp = $path->random_map_params) {
		1118	$map = generate_random_map $key, $rmp;
		1119	} else {
		1120	$map = try_load_header $path->load_path;
		1121	}
		1122
		1123	$map or return;
		1124
		1125	$map->{instantiate_time} = $cf::RUNTIME;
		1126	$map->instantiate;
		1127
		1128	# per-player maps become, after loading, normal maps
		1129	$map->per_player (0) if $path->{user_rel};
		1130	}
		1131
		1132	$map->path ($key);
		1133	$map->{path} = $path;
		1134	$map->last_access ($cf::RUNTIME);
		1135
		1136	$map->reset if $map->should_reset;
		1137
		1138	$cf::MAP{$key} = $map
		1139	}
		1140	}
		1141
		1142	sub load {
		1143	my ($self) = @_;
		1144
		1145	return if $self->in_memory != cf::MAP_SWAPPED;
		1146
		1147	$self->in_memory (cf::MAP_LOADING);
		1148
		1149	my $path = $self->{path};
		1150
		1151	$self->alloc;
		1152	$self->load_objects ($self->{load_path}, 1)
		1153	or return;
		1154
		1155	if (my $uniq = $path->uniq_path) {
		1156	utf8::encode $uniq;
		1157	if (aio_open $uniq, O_RDONLY, 0) {
		1158	$self->clear_unique_items;
		1159	$self->load_objects ($uniq, 0);
		1160	}
		1161	}
		1162
		1163	# now do the right thing for maps
		1164	$self->link_multipart_objects;
		1165
		1166	if ($self->{path}->is_style_map) {
		1167	$self->{deny_save} = 1;
		1168	$self->{deny_reset} = 1;
		1169	} else {
		1170	$self->fix_auto_apply;
		1171	$self->decay_objects;
		1172	$self->update_buttons;
		1173	$self->set_darkness_map;
		1174	$self->difficulty ($self->estimate_difficulty)
		1175	unless $self->difficulty;
		1176	$self->activate;
		1177	}
		1178
		1179	$self->in_memory (cf::MAP_IN_MEMORY);
		1180	}
		1181
		1182	sub load_map_sync {
		1183	my ($path, $origin) = @_;
		1184
		1185	#warn "load_map_sync<$path, $origin>\n";#d#
		1186
		1187	cf::sync_job {
		1188	my $map = cf::map::find_map $path, $origin
		1189	or return;
		1190	$map->load;
		1191	$map
		1192	}
		1193	}
		1194
		1195	sub save {
		1196	my ($self) = @_;
		1197
		1198	my $save = $self->{path}->save_path; utf8::encode $save;
		1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1200
		1201	$self->{last_save} = $cf::RUNTIME;
		1202
		1203	return unless $self->dirty;
		1204
		1205	$self->{load_path} = $save;
		1206
		1207	return if $self->{deny_save};
		1208
		1209	warn "saving map ", $self->path;
		1210
		1211	if ($uniq) {
		1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1213	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1214	} else {
		1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1216	}
		1217	}
		1218
		1219	sub swap_out {
		1220	my ($self) = @_;
		1221
		1222	return if $self->players;
		1223	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1224	return if $self->{deny_save};
		1225
		1226	$self->save;
		1227	$self->clear;
		1228	$self->in_memory (cf::MAP_SWAPPED);
		1229	}
		1230
		1231	sub should_reset {
		1232	my ($map) = @_;
		1233
		1234	# TODO: safety, remove and allow resettable per-player maps
		1235	return if $map->{path}{user_rel};#d#
		1236	return if $map->{deny_reset};
		1237	#return unless $map->reset_timeout;
		1238
		1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
		1240
		1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
		1242	}
		1243
		1244	sub reset {
		1245	my ($self) = @_;
		1246
		1247	return if $self->players;
		1248	return if $self->{path}{user_rel};#d#
		1249
		1250	warn "resetting map ", $self->path;#d#
		1251
		1252	utf8::encode (my $save = $self->{path}->save_path);
		1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1255
		1256	$_->clear_links_to ($self) for values %cf::MAP;
		1257
		1258	$self->clear;
		1259	$self->in_memory (cf::MAP_SWAPPED);
		1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
		1261	}
		1262
		1263	sub customise_for {
		1264	my ($map, $ob) = @_;
		1265
		1266	if ($map->per_player) {
		1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1268	}
		1269
		1270	$map
		1271	}
		1272
		1273	sub emergency_save {
		1274	local $cf::FREEZE = 1;
		1275
		1276	warn "enter emergency map save\n";
		1277
		1278	cf::sync_job {
		1279	warn "begin emergency map save\n";
		1280	$_->save for values %cf::MAP;
		1281	};
		1282
		1283	warn "end emergency map save\n";
		1284	}
		1285
		1286	package cf;
		1287
		1288	=back
		1289
		1290
		1291	=head3 cf::object::player
		1292
		1293	=over 4
		1294
722	=item $player->reply ($npc, $msg[, $flags])	1295	=item $player_object->reply ($npc, $msg[, $flags])
723		1296
724	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1297	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
725	can be C<undef>. Does the right thing when the player is currently in a	1298	can be C<undef>. Does the right thing when the player is currently in a
726	dialogue with the given NPC character.	1299	dialogue with the given NPC character.
727		1300
728	=cut	1301	=cut
729		1302
730	# rough implementation of a future "reply" method that works	1303	# rough implementation of a future "reply" method that works
731	# with dialog boxes.	1304	# with dialog boxes.
		1305	#TODO: the first argument must go, split into a $npc->reply_to ( method
732	sub cf::object::player::reply($$$;$) {	1306	sub cf::object::player::reply($$$;$) {
733	my ($self, $npc, $msg, $flags) = @_;	1307	my ($self, $npc, $msg, $flags) = @_;
734		1308
735	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1309	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
736		1310
…		…
740	$msg = $npc->name . " says: $msg" if $npc;	1314	$msg = $npc->name . " says: $msg" if $npc;
741	$self->message ($msg, $flags);	1315	$self->message ($msg, $flags);
742	}	1316	}
743	}	1317	}
744		1318
745	=item $player->ext_reply ($msgid, $msgtype, %msg)	1319	=item $player_object->may ("access")
746		1320
747	Sends an ext reply to the player.	1321	Returns wether the given player is authorized to access resource "access"
		1322	(e.g. "command_wizcast").
748		1323
749	=cut	1324	=cut
750		1325
751	sub cf::player::ext_reply($$$%) {	1326	sub cf::object::player::may {
		1327	my ($self, $access) = @_;
		1328
		1329	$self->flag (cf::FLAG_WIZ) ||
		1330	(ref $cf::CFG{"may_$access"}
		1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1332	: $cf::CFG{"may_$access"})
		1333	}
		1334
		1335	sub cf::object::player::enter_link {
		1336	my ($self) = @_;
		1337
		1338	return if $self->map == $LINK_MAP;
		1339
		1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1341	if $self->map;
		1342
		1343	$self->enter_map ($LINK_MAP, 20, 20);
		1344	$self->deactivate_recursive;
		1345	}
		1346
		1347	sub cf::object::player::leave_link {
		1348	my ($self, $map, $x, $y) = @_;
		1349
		1350	my $link_pos = delete $self->{_link_pos};
		1351
		1352	unless ($map) {
		1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1354
		1355	# restore original map position
		1356	($map, $x, $y) = @{ $link_pos || [] };
		1357	$map = cf::map::find_map $map;
		1358
		1359	unless ($map) {
		1360	($map, $x, $y) = @$EMERGENCY_POSITION;
		1361	$map = cf::map::find_map $map
		1362	or die "FATAL: cannot load emergency map\n";
		1363	}
		1364	}
		1365
		1366	($x, $y) = (-1, -1)
		1367	unless (defined $x) && (defined $y);
		1368
		1369	# use -1 or undef as default coordinates, not 0, 0
		1370	($x, $y) = ($map->enter_x, $map->enter_y)
		1371	if $x <=0 && $y <= 0;
		1372
		1373	$map->load;
		1374
		1375	$self->activate_recursive;
		1376	$self->enter_map ($map, $x, $y);
		1377	}
		1378
		1379	=item $player_object->goto_map ($map, $x, $y)
		1380
		1381	=cut
		1382
		1383	sub cf::object::player::goto_map {
		1384	my ($self, $path, $x, $y) = @_;
		1385
		1386	$self->enter_link;
		1387
		1388	(Coro::async {
		1389	$path = new cf::path $path;
		1390
		1391	my $map = cf::map::find_map $path->as_string;
		1392	$map = $map->customise_for ($self) if $map;
		1393
		1394	warn "entering ", $map->path, " at ($x, $y)\n"
		1395	if $map;
		1396
		1397	$self->leave_link ($map, $x, $y);
		1398	})->prio (1);
		1399	}
		1400
		1401	=item $player_object->enter_exit ($exit_object)
		1402
		1403	=cut
		1404
		1405	sub parse_random_map_params {
		1406	my ($spec) = @_;
		1407
		1408	my $rmp = { # defaults
		1409	xsize => 10,
		1410	ysize => 10,
		1411	};
		1412
		1413	for (split /\n/, $spec) {
		1414	my ($k, $v) = split /\s+/, $_, 2;
		1415
		1416	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1417	}
		1418
		1419	$rmp
		1420	}
		1421
		1422	sub prepare_random_map {
		1423	my ($exit) = @_;
		1424
		1425	# all this does is basically replace the /! path by
		1426	# a new random map path (?random/...) with a seed
		1427	# that depends on the exit object
		1428
		1429	my $rmp = parse_random_map_params $exit->msg;
		1430
		1431	if ($exit->map) {
		1432	$rmp->{region} = $exit->map->region_name;
		1433	$rmp->{origin_map} = $exit->map->path;
		1434	$rmp->{origin_x} = $exit->x;
		1435	$rmp->{origin_y} = $exit->y;
		1436	}
		1437
		1438	$rmp->{random_seed} ||= $exit->random_seed;
		1439
		1440	my $data = cf::to_json $rmp;
		1441	my $md5 = Digest::MD5::md5_hex $data;
		1442
		1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1444	aio_write $fh, 0, (length $data), $data, 0;
		1445
		1446	$exit->slaying ("?random/$md5");
		1447	$exit->msg (undef);
		1448	}
		1449	}
		1450
		1451	sub cf::object::player::enter_exit {
752	my ($self, $id, %msg) = @_;	1452	my ($self, $exit) = @_;
753		1453
754	$msg{msgid} = $id;	1454	return unless $self->type == cf::PLAYER;
755		1455
756	$self->send ("ext " . to_json \%msg);	1456	$self->enter_link;
757	}
758		1457
759	#############################################################################	1458	(Coro::async {
760	# map scripting support	1459	unless (eval {
		1460
		1461	prepare_random_map $exit
		1462	if $exit->slaying eq "/!";
		1463
		1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1466
		1467	1;
		1468	}) {
		1469	$self->message ("Something went wrong deep within the crossfire server. "
		1470	. "I'll try to bring you back to the map you were before. "
		1471	. "Please report this to the dungeon master",
		1472	cf::NDI_UNIQUE | cf::NDI_RED);
		1473
		1474	warn "ERROR in enter_exit: $@";
		1475	$self->leave_link;
		1476	}
		1477	})->prio (1);
		1478	}
		1479
		1480	=head3 cf::client
		1481
		1482	=over 4
		1483
		1484	=item $client->send_drawinfo ($text, $flags)
		1485
		1486	Sends a drawinfo packet to the client. Circumvents output buffering so
		1487	should not be used under normal circumstances.
		1488
		1489	=cut
		1490
		1491	sub cf::client::send_drawinfo {
		1492	my ($self, $text, $flags) = @_;
		1493
		1494	utf8::encode $text;
		1495	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1496	}
		1497
		1498
		1499	=item $success = $client->query ($flags, "text", \&cb)
		1500
		1501	Queues a query to the client, calling the given callback with
		1502	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1503	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1504
		1505	Queries can fail, so check the return code. Or don't, as queries will become
		1506	reliable at some point in the future.
		1507
		1508	=cut
		1509
		1510	sub cf::client::query {
		1511	my ($self, $flags, $text, $cb) = @_;
		1512
		1513	return unless $self->state == ST_PLAYING
		1514	|| $self->state == ST_SETUP
		1515	|| $self->state == ST_CUSTOM;
		1516
		1517	$self->state (ST_CUSTOM);
		1518
		1519	utf8::encode $text;
		1520	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1521
		1522	$self->send_packet ($self->{query_queue}[0][0])
		1523	if @{ $self->{query_queue} } == 1;
		1524	}
		1525
		1526	cf::client->attach (
		1527	on_reply => sub {
		1528	my ($ns, $msg) = @_;
		1529
		1530	# this weird shuffling is so that direct followup queries
		1531	# get handled first
		1532	my $queue = delete $ns->{query_queue};
		1533
		1534	(shift @$queue)->[1]->($msg);
		1535
		1536	push @{ $ns->{query_queue} }, @$queue;
		1537
		1538	if (@{ $ns->{query_queue} } == @$queue) {
		1539	if (@$queue) {
		1540	$ns->send_packet ($ns->{query_queue}[0][0]);
		1541	} else {
		1542	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1543	}
		1544	}
		1545	},
		1546	);
		1547
		1548	=item $client->coro (\&cb)
		1549
		1550	Create a new coroutine, running the specified callback. The coroutine will
		1551	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1552	or loss of connection).
		1553
		1554	=cut
		1555
		1556	sub cf::client::coro {
		1557	my ($self, $cb) = @_;
		1558
		1559	my $coro; $coro = async {
		1560	eval {
		1561	$cb->();
		1562	};
		1563	warn $@ if $@;
		1564	};
		1565
		1566	$coro->on_destroy (sub {
		1567	delete $self->{_coro}{$coro+0};
		1568	});
		1569
		1570	$self->{_coro}{$coro+0} = $coro;
		1571
		1572	$coro
		1573	}
		1574
		1575	cf::client->attach (
		1576	on_destroy => sub {
		1577	my ($ns) = @_;
		1578
		1579	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1580	},
		1581	);
		1582
		1583	=back
		1584
		1585
		1586	=head2 SAFE SCRIPTING
		1587
		1588	Functions that provide a safe environment to compile and execute
		1589	snippets of perl code without them endangering the safety of the server
		1590	itself. Looping constructs, I/O operators and other built-in functionality
		1591	is not available in the safe scripting environment, and the number of
		1592	functions and methods that can be called is greatly reduced.
		1593
		1594	=cut
761		1595
762	our $safe = new Safe "safe";	1596	our $safe = new Safe "safe";
763	our $safe_hole = new Safe::Hole;	1597	our $safe_hole = new Safe::Hole;
764		1598
765	$SIG{FPE} = 'IGNORE';	1599	$SIG{FPE} = 'IGNORE';
766		1600
767	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	1601	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
768		1602
769	# here we export the classes and methods available to script code	1603	# here we export the classes and methods available to script code
770		1604
		1605	=pod
		1606
		1607	The following fucntions and emthods are available within a safe environment:
		1608
		1609	cf::object contr pay_amount pay_player map
		1610	cf::object::player player
		1611	cf::player peaceful
		1612	cf::map trigger
		1613
		1614	=cut
		1615
771	for (	1616	for (
772	["cf::object" => qw(contr pay_amount pay_player)],	1617	["cf::object" => qw(contr pay_amount pay_player map)],
773	["cf::object::player" => qw(player)],	1618	["cf::object::player" => qw(player)],
774	["cf::player" => qw(peaceful)],	1619	["cf::player" => qw(peaceful)],
		1620	["cf::map" => qw(trigger)],
775	) {	1621	) {
776	no strict 'refs';	1622	no strict 'refs';
777	my ($pkg, @funs) = @$_;	1623	my ($pkg, @funs) = @$_;
778	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1624	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
779	for @funs;	1625	for @funs;
780	}	1626	}
		1627
		1628	=over 4
		1629
		1630	=item @retval = safe_eval $code, [var => value, ...]
		1631
		1632	Compiled and executes the given perl code snippet. additional var/value
		1633	pairs result in temporary local (my) scalar variables of the given name
		1634	that are available in the code snippet. Example:
		1635
		1636	my $five = safe_eval '$first + $second', first => 1, second => 4;
		1637
		1638	=cut
781		1639
782	sub safe_eval($;@) {	1640	sub safe_eval($;@) {
783	my ($code, %vars) = @_;	1641	my ($code, %vars) = @_;
784		1642
785	my $qcode = $code;	1643	my $qcode = $code;
…		…
808	}	1666	}
809		1667
810	wantarray ? @res : $res[0]	1668	wantarray ? @res : $res[0]
811	}	1669	}
812		1670
		1671	=item cf::register_script_function $function => $cb
		1672
		1673	Register a function that can be called from within map/npc scripts. The
		1674	function should be reasonably secure and should be put into a package name
		1675	like the extension.
		1676
		1677	Example: register a function that gets called whenever a map script calls
		1678	C<rent::overview>, as used by the C<rent> extension.
		1679
		1680	cf::register_script_function "rent::overview" => sub {
		1681	...
		1682	};
		1683
		1684	=cut
		1685
813	sub register_script_function {	1686	sub register_script_function {
814	my ($fun, $cb) = @_;	1687	my ($fun, $cb) = @_;
815		1688
816	no strict 'refs';	1689	no strict 'refs';
817	*{"safe::$fun"} = $safe_hole->wrap ($cb);	1690	*{"safe::$fun"} = $safe_hole->wrap ($cb);
818	}	1691	}
		1692
		1693	=back
		1694
		1695	=cut
819		1696
820	#############################################################################	1697	#############################################################################
821		1698
822	=head2 EXTENSION DATABASE SUPPORT	1699	=head2 EXTENSION DATABASE SUPPORT
823		1700
…		…
858		1735
859	Immediately write the database to disk I<if it is dirty>.	1736	Immediately write the database to disk I<if it is dirty>.
860		1737
861	=cut	1738	=cut
862		1739
		1740	our $DB;
		1741
863	{	1742	{
864	my $db;
865	my $path = cf::datadir . "/database.pst";	1743	my $path = cf::localdir . "/database.pst";
866		1744
867	sub db_load() {	1745	sub db_load() {
868	warn "loading database $path\n";#d# remove later	1746	warn "loading database $path\n";#d# remove later
869	$db = stat $path ? Storable::retrieve $path : { };	1747	$DB = stat $path ? Storable::retrieve $path : { };
870	}	1748	}
871		1749
872	my $pid;	1750	my $pid;
873		1751
874	sub db_save() {	1752	sub db_save() {
875	warn "saving database $path\n";#d# remove later	1753	warn "saving database $path\n";#d# remove later
876	waitpid $pid, 0 if $pid;	1754	waitpid $pid, 0 if $pid;
877	unless ($pid = fork) {	1755	if (0 == ($pid = fork)) {
878	$db->{_meta}{version} = 1;	1756	$DB->{_meta}{version} = 1;
879	Storable::nstore $db, "$path~";	1757	Storable::nstore $DB, "$path~";
880	rename "$path~", $path;	1758	rename "$path~", $path;
881	cf::_exit 0 if defined $pid;	1759	cf::_exit 0 if defined $pid;
882	}	1760	}
883	}	1761	}
884		1762
…		…
887	sub db_sync() {	1765	sub db_sync() {
888	db_save if $dirty;	1766	db_save if $dirty;
889	undef $dirty;	1767	undef $dirty;
890	}	1768	}
891		1769
892	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
893	db_sync;	1771	db_sync;
894	});	1772	});
895		1773
896	sub db_dirty() {	1774	sub db_dirty() {
897	$dirty = 1;	1775	$dirty = 1;
898	$idle->start;	1776	$idle->start;
899	}	1777	}
900		1778
901	sub db_get($;$) {	1779	sub db_get($;$) {
902	@_ >= 2	1780	@_ >= 2
903	? $db->{$_[0]}{$_[1]}	1781	? $DB->{$_[0]}{$_[1]}
904	: ($db->{$_[0]} ||= { })	1782	: ($DB->{$_[0]} ||= { })
905	}	1783	}
906		1784
907	sub db_put($$;$) {	1785	sub db_put($$;$) {
908	if (@_ >= 3) {	1786	if (@_ >= 3) {
909	$db->{$_[0]}{$_[1]} = $_[2];	1787	$DB->{$_[0]}{$_[1]} = $_[2];
910	} else {	1788	} else {
911	$db->{$_[0]} = $_[1];	1789	$DB->{$_[0]} = $_[1];
912	}	1790	}
913	db_dirty;	1791	db_dirty;
914	}	1792	}
		1793
		1794	cf::global->attach (
		1795	prio => 10000,
		1796	on_cleanup => sub {
		1797	db_sync;
		1798	},
		1799	);
915	}	1800	}
916		1801
917	#############################################################################	1802	#############################################################################
918	# the server's main()	1803	# the server's main()
919		1804
		1805	sub cfg_load {
		1806	open my $fh, "<:utf8", cf::confdir . "/config"
		1807	or return;
		1808
		1809	local $/;
		1810	*CFG = YAML::Syck::Load <$fh>;
		1811	}
		1812
920	sub main {	1813	sub main {
		1814	# we must not ever block the main coroutine
		1815	local $Coro::idle = sub {
		1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1817	(Coro::unblock_sub {
		1818	Event::one_event;
		1819	})->();
		1820	};
		1821
		1822	cfg_load;
921	db_load;	1823	db_load;
922	load_extensions;	1824	load_extensions;
923	Event::loop;	1825	Event::loop;
924	}	1826	}
925		1827
926	#############################################################################	1828	#############################################################################
927	# initialisation	1829	# initialisation
928		1830
929	sub _perl_reload(&) {	1831	sub perl_reload() {
930	my ($msg) = @_;	1832	# can/must only be called in main
		1833	if ($Coro::current != $Coro::main) {
		1834	warn "can only reload from main coroutine\n";
		1835	return;
		1836	}
931		1837
932	$msg->("reloading...");	1838	warn "reloading...";
		1839
		1840	local $FREEZE = 1;
		1841	cf::emergency_save;
933		1842
934	eval {	1843	eval {
		1844	# if anything goes wrong in here, we should simply crash as we already saved
		1845
935	# cancel all watchers	1846	# cancel all watchers
936	$_->cancel for Event::all_watchers;	1847	for (Event::all_watchers) {
		1848	$_->cancel if $_->data & WF_AUTOCANCEL;
		1849	}
		1850
		1851	# cancel all extension coros
		1852	$_->cancel for values %EXT_CORO;
		1853	%EXT_CORO = ();
937		1854
938	# unload all extensions	1855	# unload all extensions
939	for (@exts) {	1856	for (@exts) {
940	$msg->("unloading <$_>");	1857	warn "unloading <$_>";
941	unload_extension $_;	1858	unload_extension $_;
942	}	1859	}
943		1860
944	# unload all modules loaded from $LIBDIR	1861	# unload all modules loaded from $LIBDIR
945	while (my ($k, $v) = each %INC) {	1862	while (my ($k, $v) = each %INC) {
946	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
947		1864
948	$msg->("removing <$k>");	1865	warn "removing <$k>";
949	delete $INC{$k};	1866	delete $INC{$k};
950		1867
951	$k =~ s/\.pm$//;	1868	$k =~ s/\.pm$//;
952	$k =~ s/\//::/g;	1869	$k =~ s/\//::/g;
953		1870
…		…
958	Symbol::delete_package $k;	1875	Symbol::delete_package $k;
959	}	1876	}
960		1877
961	# sync database to disk	1878	# sync database to disk
962	cf::db_sync;	1879	cf::db_sync;
		1880	IO::AIO::flush;
963		1881
964	# get rid of safe::, as good as possible	1882	# get rid of safe::, as good as possible
965	Symbol::delete_package "safe::$_"	1883	Symbol::delete_package "safe::$_"
966	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
967		1885
968	# remove register_script_function callbacks	1886	# remove register_script_function callbacks
969	# TODO	1887	# TODO
970		1888
971	# unload cf.pm "a bit"	1889	# unload cf.pm "a bit"
…		…
974	# don't, removes xs symbols, too,	1892	# don't, removes xs symbols, too,
975	# and global variables created in xs	1893	# and global variables created in xs
976	#Symbol::delete_package __PACKAGE__;	1894	#Symbol::delete_package __PACKAGE__;
977		1895
978	# reload cf.pm	1896	# reload cf.pm
979	$msg->("reloading cf.pm");	1897	warn "reloading cf.pm";
980	require cf;	1898	require cf;
		1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
981		1900
982	# load database again	1901	# load config and database again
		1902	cf::cfg_load;
983	cf::db_load;	1903	cf::db_load;
984		1904
985	# load extensions	1905	# load extensions
986	$msg->("load extensions");	1906	warn "load extensions";
987	cf::load_extensions;	1907	cf::load_extensions;
988		1908
989	# reattach attachments to objects	1909	# reattach attachments to objects
990	$msg->("reattach");	1910	warn "reattach";
991	_global_reattach;	1911	_global_reattach;
992	};	1912	};
993	$msg->($@) if $@;
994		1913
995	$msg->("reloaded");	1914	if ($@) {
		1915	warn $@;
		1916	warn "error while reloading, exiting.";
		1917	exit 1;
		1918	}
		1919
		1920	warn "reloaded successfully";
996	};	1921	};
997		1922
998	sub perl_reload() {	1923	#############################################################################
999	_perl_reload {
1000	warn $_[0];
1001	print "$_[0]\n";
1002	};
1003	}
1004		1924
		1925	unless ($LINK_MAP) {
		1926	$LINK_MAP = cf::map::new;
		1927
		1928	$LINK_MAP->width (41);
		1929	$LINK_MAP->height (41);
		1930	$LINK_MAP->alloc;
		1931	$LINK_MAP->path ("{link}");
		1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		1934
		1935	# dirty hack because... archetypes are not yet loaded
		1936	Event->timer (
		1937	after => 2,
		1938	cb => sub {
		1939	$_[0]->w->cancel;
		1940
		1941	# provide some exits "home"
		1942	my $exit = cf::object::new "exit";
		1943
		1944	$exit->slaying ($EMERGENCY_POSITION->[0]);
		1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		1947
		1948	$LINK_MAP->insert ($exit->clone, 19, 19);
		1949	$LINK_MAP->insert ($exit->clone, 19, 20);
		1950	$LINK_MAP->insert ($exit->clone, 19, 21);
		1951	$LINK_MAP->insert ($exit->clone, 20, 19);
		1952	$LINK_MAP->insert ($exit->clone, 20, 21);
		1953	$LINK_MAP->insert ($exit->clone, 21, 19);
		1954	$LINK_MAP->insert ($exit->clone, 21, 20);
		1955	$LINK_MAP->insert ($exit->clone, 21, 21);
		1956
		1957	$exit->destroy;
		1958	});
		1959
		1960	$LINK_MAP->{deny_save} = 1;
		1961	$LINK_MAP->{deny_reset} = 1;
		1962
		1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		1964	}
		1965
		1966	register "<global>", __PACKAGE__;
		1967
1005	register_command "perl-reload", 0, sub {	1968	register_command "perl-reload" => sub {
1006	my ($who, $arg) = @_;	1969	my ($who, $arg) = @_;
1007		1970
1008	if ($who->flag (FLAG_WIZ)) {	1971	if ($who->flag (FLAG_WIZ)) {
		1972	$who->message ("start of reload.");
1009	_perl_reload {	1973	perl_reload;
1010	warn $_[0];	1974	$who->message ("end of reload.");
1011	$who->message ($_[0]);
1012	};
1013	}	1975	}
1014	};	1976	};
1015		1977
1016	register "<global>", __PACKAGE__;
1017
1018	unshift @INC, $LIBDIR;	1978	unshift @INC, $LIBDIR;
1019		1979
1020	$TICK_WATCHER = Event->timer (	1980	$TICK_WATCHER = Event->timer (
		1981	reentrant => 0,
1021	prio => 1,	1982	prio => 0,
1022	at => $NEXT_TICK || 1,	1983	at => $NEXT_TICK || $TICK,
		1984	data => WF_AUTOCANCEL,
1023	cb => sub {	1985	cb => sub {
		1986	unless ($FREEZE) {
1024	cf::server_tick; # one server iteration	1987	cf::server_tick; # one server iteration
		1988	$RUNTIME += $TICK;
		1989	}
1025		1990
1026	my $NOW = Event::time;
1027	$NEXT_TICK += $TICK;	1991	$NEXT_TICK += $TICK;
1028		1992
1029	# if we are delayed by four ticks, skip them all	1993	# if we are delayed by four ticks or more, skip them all
1030	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1031		1995
1032	$TICK_WATCHER->at ($NEXT_TICK);	1996	$TICK_WATCHER->at ($NEXT_TICK);
1033	$TICK_WATCHER->start;	1997	$TICK_WATCHER->start;
1034	},	1998	},
1035	);	1999	);
1036		2000
		2001	IO::AIO::max_poll_time $TICK * 0.2;
		2002
		2003	Event->io (
		2004	fd => IO::AIO::poll_fileno,
		2005	poll => 'r',
		2006	prio => 5,
		2007	data => WF_AUTOCANCEL,
		2008	cb => \&IO::AIO::poll_cb,
		2009	);
		2010
		2011	Event->timer (
		2012	data => WF_AUTOCANCEL,
		2013	after => 0,
		2014	interval => 10,
		2015	cb => sub {
		2016	(Coro::unblock_sub {
		2017	write_runtime
		2018	or warn "ERROR: unable to write runtime file: $!";
		2019	})->();
		2020	},
		2021	);
		2022
1037	1	2023	1
1038		2024

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