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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.76 by root, Mon Oct 2 15:28:36 2006 UTC vs.
Revision 1.115 by root, Mon Jan 1 16:50:10 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Digest::MD5;
		21	use Fcntl;
		22	use IO::AIO 2.31 ();
10	use YAML::Syck ();	23	use YAML::Syck ();
11	use Time::HiRes;	24	use Time::HiRes;
12	use Event;	25
13	$Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
14		27
15	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
16	$YAML::Syck::ImplicitUnicode = 1;	29	$YAML::Syck::ImplicitUnicode = 1;
17		30
18	use strict;	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
19		32
20	_init_vars;	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
21		34
22	our %COMMAND = ();	35	our %COMMAND = ();
		36	our %COMMAND_TIME = ();
		37	our %EXTCMD = ();
		38
23	our @EVENT;	39	our @EVENT;
24	our $LIBDIR = maps_directory "perl";	40	our $LIBDIR = datadir . "/ext";
25		41
26	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
27	our $TICK_WATCHER;	43	our $TICK_WATCHER;
28	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
29		46
30	our %CFG;	47	our %CFG;
31		48
32	our $uptime;	49	our $UPTIME; $UPTIME ||= time;
		50	our $RUNTIME;
33		51
34	$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];
35		78
36	#############################################################################	79	#############################################################################
37		80
38	=head2 GLOBAL VARIABLES	81	=head2 GLOBAL VARIABLES
39		82
40	=over 4	83	=over 4
		84
		85	=item $cf::UPTIME
		86
		87	The timestamp of the server start (so not actually an uptime).
		88
		89	=item $cf::RUNTIME
		90
		91	The time this server has run, starts at 0 and is increased by $cf::TICK on
		92	every server tick.
41		93
42	=item $cf::LIBDIR	94	=item $cf::LIBDIR
43		95
44	The perl library directory, where extensions and cf-specific modules can	96	The perl library directory, where extensions and cf-specific modules can
45	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.
46		102
47	=item $cf::TICK	103	=item $cf::TICK
48		104
49	The interval between server ticks, in seconds.	105	The interval between server ticks, in seconds.
50		106
…		…
58	=cut	114	=cut
59		115
60	BEGIN {	116	BEGIN {
61	*CORE::GLOBAL::warn = sub {	117	*CORE::GLOBAL::warn = sub {
62	my $msg = join "", @_;	118	my $msg = join "", @_;
		119	utf8::encode $msg;
		120
63	$msg .= "\n"	121	$msg .= "\n"
64	unless $msg =~ /\n$/;	122	unless $msg =~ /\n$/;
65		123
66	print STDERR "cfperl: $msg";
67	LOG llevError, "cfperl: $msg";	124	LOG llevError, "cfperl: $msg";
68	};	125	};
69	}	126	}
70		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';
71	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
72		134
73	# 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
74	# within the Safe compartment.	136	# within the Safe compartment.
75	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	137	for my $pkg (qw(
		138	cf::global cf::attachable
		139	cf::object cf::object::player
		140	cf::client cf::player
		141	cf::arch cf::living
		142	cf::map cf::party cf::region
		143	)) {
76	no strict 'refs';	144	no strict 'refs';
77	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
78	}	146	}
79		147
80	$Event::DIED = sub {	148	$Event::DIED = sub {
…		…
82	};	150	};
83		151
84	my %ext_pkg;	152	my %ext_pkg;
85	my @exts;	153	my @exts;
86	my @hook;	154	my @hook;
87	my %command;
88	my %extcmd;
89		155
90	=head2 UTILITY FUNCTIONS	156	=head2 UTILITY FUNCTIONS
91		157
92	=over 4	158	=over 4
93		159
…		…
115	sub to_json($) {	181	sub to_json($) {
116	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
117	JSON::Syck::Dump $_[0]	183	JSON::Syck::Dump $_[0]
118	}	184	}
119		185
		186	=item cf::sync_job { BLOCK }
		187
		188	The design of crossfire+ requires that the main coro ($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~", $runtime
		274	and return;
		275
		276	1
		277	}
		278
120	=back	279	=back
121		280
122	=cut	281	=cut
123		282
124	#############################################################################	283	#############################################################################
125		284
126	=head2 EVENTS AND OBJECT ATTACHMENTS	285	package cf::path;
		286
		287	sub new {
		288	my ($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+).
127		414
128	=over 4	415	=over 4
129		416
130	=item $object->attach ($attachment, key => $value...)
131
132	=item $object->detach ($attachment)
133
134	Attach/detach a pre-registered attachment to an object.
135
136	=item $player->attach ($attachment, key => $value...)
137
138	=item $player->detach ($attachment)
139
140	Attach/detach a pre-registered attachment to a player.
141
142	=item $map->attach ($attachment, key => $value...)	417	=item $attachable->attach ($attachment, key => $value...)
143		418
144	=item $map->detach ($attachment)	419	=item $attachable->detach ($attachment)
145		420
146	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.
147		423
148	=item $bool = $object->attached ($name)	424	Example, attach a minesweeper attachment to the given object, making it a
		425	10x10 minesweeper game:
149		426
150	=item $bool = $player->attached ($name)	427	$obj->attach (minesweeper => width => 10, height => 10);
151		428
152	=item $bool = $map->attached ($name)	429	=item $bool = $attachable->attached ($name)
153		430
154	Checks wether the named attachment is currently attached to the object.	431	Checks wether the named attachment is currently attached to the object.
155		432
156	=item cf::attach_global ...	433	=item cf::CLASS->attach ...
157		434
158	Attach handlers for global events.	435	=item cf::CLASS->detach ...
159		436
160	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
161	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:
162		471
163	=over 4	472	=over 4
164		473
165	=item prio => $number	474	=item prio => $number
166		475
…		…
168	by another C<prio> setting). Lower priority handlers get executed	477	by another C<prio> setting). Lower priority handlers get executed
169	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
170	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
171	unless you know what you are doing.	480	unless you know what you are doing.
172		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
173	=item on_I<event> => \&cb	488	=item on_I<event> => \&cb
174		489
175	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
176	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
177	handlers are recognised generally depends on the type of object these	492	handlers are recognised generally depends on the type of object these
…		…
186	package and register them. Only handlers for eevents supported by the	501	package and register them. Only handlers for eevents supported by the
187	object/class are recognised.	502	object/class are recognised.
188		503
189	=back	504	=back
190		505
191	=item cf::attach_to_type $object_type, $subtype, ...	506	Example, define an attachment called "sockpuppet" that calls the given
		507	event handler when a monster attacks:
192		508
193	Attach handlers for a specific object type (e.g. TRANSPORT) and	509	cf::object::attachment sockpuppet =>
194	subtype. If C<$subtype> is zero or undef, matches all objects of the given	510	on_skill_attack => sub {
195	type.	511	my ($self, $victim) = @_;
196		512	...
197	=item cf::attach_to_objects ...
198
199	Attach handlers to all objects. Do not use this except for debugging or
200	very rare events, as handlers are (obviously) called for I<all> objects in
201	the game.
202
203	=item cf::attach_to_players ...
204
205	Attach handlers to all players.
206
207	=item cf::attach_to_maps ...
208
209	Attach handlers to all maps.
210
211	=item cf:register_attachment $name, ...
212
213	Register an attachment by name through which objects can refer to this
214	attachment.
215
216	=item cf:register_player_attachment $name, ...
217
218	Register an attachment by name through which players can refer to this
219	attachment.
220
221	=item cf:register_map_attachment $name, ...
222
223	Register an attachment by name through which maps can refer to this
224	attachment.
225
226	=cut
227
228	# the following variables are defined in .xs and must not be re-created
229	our @CB_GLOBAL = (); # registry for all global events
230	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
231	our @CB_PLAYER = ();
232	our @CB_TYPE = (); # registry for type (cf-object class) based events
233	our @CB_MAP = ();
234
235	my %attachment;
236
237	sub _attach_cb($\%$$$) {
238	my ($registry, $undo, $event, $prio, $cb) = @_;
239
240	use sort 'stable';
241
242	$cb = [$prio, $cb];
243
244	@{$registry->[$event]} = sort
245	{ $a->[0] cmp $b->[0] }
246	@{$registry->[$event] || []}, $cb;
247
248	push @{$undo->{cb}}, [$event, $cb];
249	}
250
251	# attach handles attaching event callbacks
252	# the only thing the caller has to do is pass the correct
253	# registry (== where the callback attaches to).
254	sub _attach(\@$@) {
255	my ($registry, $klass, @arg) = @_;
256
257	my $prio = 0;
258
259	my %undo = (
260	registry => $registry,
261	cb => [],
262	);
263
264	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
265
266	while (@arg) {
267	my $type = shift @arg;
268
269	if ($type eq "prio") {
270	$prio = shift @arg;
271
272	} elsif ($type eq "package") {
273	my $pkg = shift @arg;
274
275	while (my ($name, $id) = each %cb_id) {
276	if (my $cb = $pkg->can ($name)) {
277	_attach_cb $registry, %undo, $id, $prio, $cb;
278	}
279	}	513	}
280
281	} elsif (exists $cb_id{$type}) {
282	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
283
284	} elsif (ref $type) {
285	warn "attaching objects not supported, ignoring.\n";
286
287	} else {
288	shift @arg;
289	warn "attach argument '$type' not supported, ignoring.\n";
290	}
291	}
292
293	\%undo
294	}
295
296	sub _attach_attachment {
297	my ($obj, $name, %arg) = @_;
298
299	return if exists $obj->{_attachment}{$name};
300
301	my $res;
302
303	if (my $attach = $attachment{$name}) {
304	my $registry = $obj->registry;
305
306	for (@$attach) {
307	my ($klass, @attach) = @$_;
308	$res = _attach @$registry, $klass, @attach;
309	}
310
311	$obj->{$name} = \%arg;
312	} else {
313	warn "object uses attachment '$name' that is not available, postponing.\n";
314	}
315
316	$obj->{_attachment}{$name} = undef;
317
318	$res->{attachment} = $name;
319	$res
320	}
321
322	*cf::object::attach =
323	*cf::player::attach =
324	*cf::map::attach = sub {
325	my ($obj, $name, %arg) = @_;
326
327	_attach_attachment $obj, $name, %arg;
328	};
329
330	# all those should be optimised
331	*cf::object::detach =
332	*cf::player::detach =
333	*cf::map::detach = sub {
334	my ($obj, $name) = @_;
335
336	delete $obj->{_attachment}{$name};
337	reattach ($obj);
338	};
339
340	*cf::object::attached =
341	*cf::player::attached =
342	*cf::map::attached = sub {
343	my ($obj, $name) = @_;
344
345	exists $obj->{_attachment}{$name}
346	};
347
348	sub attach_global {
349	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
350	}
351
352	sub attach_to_type {
353	my $type = shift;
354	my $subtype = shift;
355
356	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
357	}
358
359	sub attach_to_objects {
360	_attach @CB_OBJECT, KLASS_OBJECT, @_
361	}
362
363	sub attach_to_players {
364	_attach @CB_PLAYER, KLASS_PLAYER, @_
365	}
366
367	sub attach_to_maps {
368	_attach @CB_MAP, KLASS_MAP, @_
369	}
370
371	sub register_attachment {
372	my $name = shift;
373
374	$attachment{$name} = [[KLASS_OBJECT, @_]];
375	}
376
377	sub register_player_attachment {
378	my $name = shift;
379
380	$attachment{$name} = [[KLASS_PLAYER, @_]];
381	}
382
383	sub register_map_attachment {
384	my $name = shift;
385
386	$attachment{$name} = [[KLASS_MAP, @_]];
387	}
388
389	our $override;
390	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
391
392	sub override {
393	$override = 1;
394	@invoke_results = ();
395	}
396
397	sub do_invoke {
398	my $event = shift;
399	my $callbacks = shift;
400
401	@invoke_results = ();
402
403	local $override;
404
405	for (@$callbacks) {
406	eval { &{$_->[1]} };
407
408	if ($@) {
409	warn "$@";
410	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
411	override;
412	}
413
414	return 1 if $override;
415	}
416
417	0	514	}
418	}
419		515
420	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	516	=item $attachable->valid
421
422	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
423
424	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
425
426	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
427
428	Generate a global/object/player/map-specific event with the given arguments.
429
430	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
431	removed in future versions), and there is no public API to access override
432	results (if you must, access C<@cf::invoke_results> directly).
433
434	=back
435
436	=cut
437
438	#############################################################################
439
440	=head2 METHODS VALID FOR ALL CORE OBJECTS
441
442	=over 4
443
444	=item $object->valid, $player->valid, $map->valid
445		517
446	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
447	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
448	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
449	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
450	exception.	522	exception.
451		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
452	=back	707	=back
453		708
454	=cut	709	=cut
455
456	*cf::object::valid =
457	*cf::player::valid =
458	*cf::map::valid = \&cf::_valid;
459		710
460	#############################################################################	711	#############################################################################
461	# object support	712	# object support
462		713
463	sub instantiate {
464	my ($obj, $data) = @_;
465
466	$data = from_json $data;
467
468	for (@$data) {
469	my ($name, $args) = @$_;
470
471	$obj->attach ($name, %{$args || {} });
472	}
473	}
474
475	# basically do the same as instantiate, without calling instantiate
476	sub reattach {	714	sub reattach {
		715	# basically do the same as instantiate, without calling instantiate
477	my ($obj) = @_;	716	my ($obj) = @_;
		717
478	my $registry = $obj->registry;	718	my $registry = $obj->registry;
479		719
480	@$registry = ();	720	@$registry = ();
481		721
482	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	722	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
483		723
484	for my $name (keys %{ $obj->{_attachment} || {} }) {	724	for my $name (keys %{ $obj->{_attachment} || {} }) {
485	if (my $attach = $attachment{$name}) {	725	if (my $attach = $attachment{$name}) {
486	for (@$attach) {	726	for (@$attach) {
487	my ($klass, @attach) = @$_;	727	my ($klass, @attach) = @$_;
488	_attach @$registry, $klass, @attach;	728	_attach $registry, $klass, @attach;
489	}	729	}
490	} else {	730	} else {
491	warn "object uses attachment '$name' that is not available, postponing.\n";	731	warn "object uses attachment '$name' that is not available, postponing.\n";
492	}	732	}
493	}	733	}
494	}	734	}
495		735
496	sub object_freezer_save {	736	cf::attachable->attach (
497	my ($filename, $rdata, $objs) = @_;
498
499	if (length $$rdata) {
500	warn sprintf "saving %s (%d,%d)\n",
501	$filename, length $$rdata, scalar @$objs;
502
503	if (open my $fh, ">:raw", "$filename~") {
504	chmod SAVE_MODE, $fh;
505	syswrite $fh, $$rdata;
506	close $fh;
507
508	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
509	chmod SAVE_MODE, $fh;
510	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
511	close $fh;
512	rename "$filename.pst~", "$filename.pst";
513	} else {
514	unlink "$filename.pst";
515	}
516
517	rename "$filename~", $filename;
518	} else {
519	warn "FATAL: $filename~: $!\n";
520	}
521	} else {
522	unlink $filename;
523	unlink "$filename.pst";
524	}
525	}
526
527	sub object_thawer_load {
528	my ($filename) = @_;
529
530	local $/;
531
532	my $av;
533
534	#TODO: use sysread etc.
535	if (open my $data, "<:raw:perlio", $filename) {
536	$data = <$data>;
537	if (open my $pst, "<:raw:perlio", "$filename.pst") {
538	$av = eval { (Storable::thaw <$pst>)->{objs} };
539	}
540	return ($data, $av);
541	}
542
543	()
544	}
545
546	attach_to_objects
547	prio => -1000000,	737	prio => -1000000,
		738	on_instantiate => sub {
		739	my ($obj, $data) = @_;
		740
		741	$data = from_json $data;
		742
		743	for (@$data) {
		744	my ($name, $args) = @$_;
		745
		746	$obj->attach ($name, %{$args || {} });
		747	}
		748	},
		749	on_reattach => \&reattach,
548	on_clone => sub {	750	on_clone => sub {
549	my ($src, $dst) = @_;	751	my ($src, $dst) = @_;
550		752
551	@{$dst->registry} = @{$src->registry};	753	@{$dst->registry} = @{$src->registry};
552		754
553	%$dst = %$src;	755	%$dst = %$src;
554		756
555	%{$dst->{_attachment}} = %{$src->{_attachment}}	757	%{$dst->{_attachment}} = %{$src->{_attachment}}
556	if exists $src->{_attachment};	758	if exists $src->{_attachment};
557	},	759	},
558	;	760	);
		761
		762	sub object_freezer_save {
		763	my ($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	}
559		824
560	#############################################################################	825	#############################################################################
561	# old plug-in events	826	# command handling &c
562		827
563	sub inject_event {	828	=item cf::register_command $name => \&callback($ob,$args);
564	my $extension = shift;
565	my $event_code = shift;
566		829
567	my $cb = $hook[$event_code]{$extension}	830	Register a callback for execution when the client sends the user command
568	or return;	831	$name.
569		832
570	&$cb	833	=cut
571	}
572
573	sub inject_global_event {
574	my $event = shift;
575
576	my $cb = $hook[$event]
577	or return;
578
579	List::Util::max map &$_, values %$cb
580	}
581
582	sub inject_command {
583	my ($name, $obj, $params) = @_;
584
585	for my $cmd (@{ $command{$name} }) {
586	$cmd->[1]->($obj, $params);
587	}
588
589	-1
590	}
591		834
592	sub register_command {	835	sub register_command {
593	my ($name, $time, $cb) = @_;	836	my ($name, $cb) = @_;
594		837
595	my $caller = caller;	838	my $caller = caller;
596	#warn "registering command '$name/$time' to '$caller'";	839	#warn "registering command '$name/$time' to '$caller'";
597		840
598	push @{ $command{$name} }, [$time, $cb, $caller];	841	push @{ $COMMAND{$name} }, [$caller, $cb];
599	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
600	}	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
601		852
602	sub register_extcmd {	853	sub register_extcmd {
603	my ($name, $cb) = @_;	854	my ($name, $cb) = @_;
604		855
605	my $caller = caller;	856	my $caller = caller;
606	#warn "registering extcmd '$name' to '$caller'";	857	#warn "registering extcmd '$name' to '$caller'";
607		858
608	$extcmd{$name} = [$cb, $caller];	859	$EXTCMD{$name} = [$cb, $caller];
609	}	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	);
610		893
611	sub register {	894	sub register {
612	my ($base, $pkg) = @_;	895	my ($base, $pkg) = @_;
613		896
614	#TODO	897	#TODO
…		…
633	. "#line 1 \"$path\"\n{\n"	916	. "#line 1 \"$path\"\n{\n"
634	. (do { local $/; <$fh> })	917	. (do { local $/; <$fh> })
635	. "\n};\n1";	918	. "\n};\n1";
636		919
637	eval $source	920	eval $source
638	or die "$path: $@";	921	or die $@ ? "$path: $@\n"
		922	: "extension disabled.\n";
639		923
640	push @exts, $pkg;	924	push @exts, $pkg;
641	$ext_pkg{$base} = $pkg;	925	$ext_pkg{$base} = $pkg;
642		926
643	# no strict 'refs';	927	# no strict 'refs';
…		…
656	# for my $idx (0 .. $#PLUGIN_EVENT) {	940	# for my $idx (0 .. $#PLUGIN_EVENT) {
657	# delete $hook[$idx]{$pkg};	941	# delete $hook[$idx]{$pkg};
658	# }	942	# }
659		943
660	# remove commands	944	# remove commands
661	for my $name (keys %command) {	945	for my $name (keys %COMMAND) {
662	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
663		947
664	if (@cb) {	948	if (@cb) {
665	$command{$name} = \@cb;	949	$COMMAND{$name} = \@cb;
666	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
667	} else {	950	} else {
668	delete $command{$name};
669	delete $COMMAND{"$name\000"};	951	delete $COMMAND{$name};
670	}	952	}
671	}	953	}
672		954
673	# remove extcmds	955	# remove extcmds
674	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
675	delete $extcmd{$name};	957	delete $EXTCMD{$name};
676	}	958	}
677		959
678	if (my $cb = $pkg->can ("unload")) {	960	if (my $cb = $pkg->can ("unload")) {
679	eval {	961	eval {
680	$cb->($pkg);	962	$cb->($pkg);
…		…
684		966
685	Symbol::delete_package $pkg;	967	Symbol::delete_package $pkg;
686	}	968	}
687		969
688	sub load_extensions {	970	sub load_extensions {
689	my $LIBDIR = maps_directory "perl";
690
691	for my $ext (<$LIBDIR/*.ext>) {	971	for my $ext (<$LIBDIR/*.ext>) {
692	next unless -r $ext;	972	next unless -r $ext;
693	eval {	973	eval {
694	load_extension $ext;	974	load_extension $ext;
695	1	975	1
696	} or warn "$ext not loaded: $@";	976	} or warn "$ext not loaded: $@";
697	}	977	}
698	}	978	}
699		979
700	#############################################################################	980	#############################################################################
701	# extcmd framework, basically convert ext <msg>
702	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
703
704	attach_to_players
705	on_extcmd => sub {
706	my ($pl, $buf) = @_;
707
708	my $msg = eval { from_json $buf };
709
710	if (ref $msg) {
711	if (my $cb = $extcmd{$msg->{msgtype}}) {
712	if (my %reply = $cb->[0]->($pl, $msg)) {
713	$pl->ext_reply ($msg->{msgid}, %reply);
714	}
715	}
716	} else {
717	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
718	}
719
720	cf::override;
721	},
722	;
723
724	#############################################################################
725	# load/save/clean perl data associated with a map	981	# load/save/clean perl data associated with a map
726		982
727	*cf::mapsupport::on_clean = sub {	983	*cf::mapsupport::on_clean = sub {
728	my ($map) = @_;	984	my ($map) = @_;
729		985
…		…
731	defined $path or return;	987	defined $path or return;
732		988
733	unlink "$path.pst";	989	unlink "$path.pst";
734	};	990	};
735		991
736	attach_to_maps prio => -10000, package => cf::mapsupport::;	992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
737		993
738	#############################################################################	994	#############################################################################
739	# load/save perl data associated with player->ob objects	995	# load/save perl data associated with player->ob objects
740		996
741	sub all_objects(@) {	997	sub all_objects(@) {
742	@_, map all_objects ($_->inv), @_	998	@_, map all_objects ($_->inv), @_
743	}	999	}
744		1000
745	# TODO: compatibility cruft, remove when no longer needed	1001	# TODO: compatibility cruft, remove when no longer needed
746	attach_to_players	1002	cf::player->attach (
747	on_load => sub {	1003	on_load => sub {
748	my ($pl, $path) = @_;	1004	my ($pl, $path) = @_;
749		1005
750	for my $o (all_objects $pl->ob) {	1006	for my $o (all_objects $pl->ob) {
751	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
753		1009
754	%$o = %{ Storable::thaw pack "H*", $value };	1010	%$o = %{ Storable::thaw pack "H*", $value };
755	}	1011	}
756	}	1012	}
757	},	1013	},
758	;	1014	);
759		1015
760	#############################################################################	1016	#############################################################################
761		1017
762	=head2 CORE EXTENSIONS	1018	=head2 CORE EXTENSIONS
763		1019
764	Functions and methods that extend core crossfire objects.	1020	Functions and methods that extend core crossfire objects.
		1021
		1022	=head3 cf::player
765		1023
766	=over 4	1024	=over 4
767		1025
768	=item cf::player::exists $login	1026	=item cf::player::exists $login
769		1027
…		…
774	sub cf::player::exists($) {	1032	sub cf::player::exists($) {
775	cf::player::find $_[0]	1033	cf::player::find $_[0]
776	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;
777	}	1035	}
778		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	$map->last_access ($cf::RUNTIME);
		1149
		1150	if ($map->should_reset) {
		1151	$map->reset;
		1152	$map = find_map $path;
		1153	}
		1154
		1155	$cf::MAP{$key} = $map
		1156	}
		1157	}
		1158
		1159	sub load {
		1160	my ($self) = @_;
		1161
		1162	return if $self->in_memory != cf::MAP_SWAPPED;
		1163
		1164	$self->in_memory (cf::MAP_LOADING);
		1165
		1166	my $path = $self->{path};
		1167
		1168	$self->alloc;
		1169	$self->load_objects ($self->{load_path}, 1)
		1170	or return;
		1171
		1172	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1173	if delete $self->{load_original};
		1174
		1175	if (my $uniq = $path->uniq_path) {
		1176	utf8::encode $uniq;
		1177	if (aio_open $uniq, O_RDONLY, 0) {
		1178	$self->clear_unique_items;
		1179	$self->load_objects ($uniq, 0);
		1180	}
		1181	}
		1182
		1183	# now do the right thing for maps
		1184	$self->link_multipart_objects;
		1185
		1186	if ($self->{path}->is_style_map) {
		1187	$self->{deny_save} = 1;
		1188	$self->{deny_reset} = 1;
		1189	} else {
		1190	$self->fix_auto_apply;
		1191	$self->decay_objects;
		1192	$self->update_buttons;
		1193	$self->set_darkness_map;
		1194	$self->difficulty ($self->estimate_difficulty)
		1195	unless $self->difficulty;
		1196	$self->activate;
		1197	}
		1198
		1199	$self->in_memory (cf::MAP_IN_MEMORY);
		1200	}
		1201
		1202	sub load_map_sync {
		1203	my ($path, $origin) = @_;
		1204
		1205	#warn "load_map_sync<$path, $origin>\n";#d#
		1206
		1207	cf::sync_job {
		1208	my $map = cf::map::find_map $path, $origin
		1209	or return;
		1210	$map->load;
		1211	$map
		1212	}
		1213	}
		1214
		1215	sub save {
		1216	my ($self) = @_;
		1217
		1218	my $save = $self->{path}->save_path; utf8::encode $save;
		1219	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1220
		1221	$self->{last_save} = $cf::RUNTIME;
		1222
		1223	return unless $self->dirty;
		1224
		1225	$self->{load_path} = $save;
		1226
		1227	return if $self->{deny_save};
		1228
		1229	if ($uniq) {
		1230	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1231	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1232	} else {
		1233	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1234	}
		1235	}
		1236
		1237	sub swap_out {
		1238	my ($self) = @_;
		1239
		1240	return if $self->players;
		1241	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1242	return if $self->{deny_save};
		1243
		1244	$self->save;
		1245	$self->clear;
		1246	$self->in_memory (cf::MAP_SWAPPED);
		1247	}
		1248
		1249	sub reset_at {
		1250	my ($self) = @_;
		1251
		1252	# TODO: safety, remove and allow resettable per-player maps
		1253	return 1e99 if $self->{path}{user_rel};
		1254	return 1e99 if $self->{deny_reset};
		1255
		1256	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1257	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1258
		1259	$time + $to
		1260	}
		1261
		1262	sub should_reset {
		1263	my ($self) = @_;
		1264
		1265	$self->reset_at <= $cf::RUNTIME
		1266	}
		1267
		1268	sub unlink_save {
		1269	my ($self) = @_;
		1270
		1271	utf8::encode (my $save = $self->{path}->save_path);
		1272	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1273	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1274	}
		1275
		1276	sub rename {
		1277	my ($self, $new_path) = @_;
		1278
		1279	$self->unlink_save;
		1280
		1281	delete $cf::MAP{$self->path};
		1282	$self->{path} = new cf::path $new_path;
		1283	$self->path ($self->{path}->as_string);
		1284	$cf::MAP{$self->path} = $self;
		1285
		1286	$self->save;
		1287	}
		1288
		1289	sub reset {
		1290	my ($self) = @_;
		1291
		1292	return if $self->players;
		1293	return if $self->{path}{user_rel};#d#
		1294
		1295	warn "resetting map ", $self->path;#d#
		1296
		1297	delete $cf::MAP{$self->path};
		1298
		1299	$_->clear_links_to ($self) for values %cf::MAP;
		1300
		1301	$self->unlink_save;
		1302	$self->destroy;
		1303	}
		1304
		1305	my $nuke_counter = "aaaa";
		1306
		1307	sub nuke {
		1308	my ($self) = @_;
		1309
		1310	$self->{deny_save} = 1;
		1311	$self->reset_timeout (1);
		1312	$self->rename ("{nuke}/" . ($nuke_counter++));
		1313	$self->reset; # polite request, might not happen
		1314	}
		1315
		1316	sub customise_for {
		1317	my ($map, $ob) = @_;
		1318
		1319	if ($map->per_player) {
		1320	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1321	}
		1322
		1323	$map
		1324	}
		1325
		1326	sub emergency_save {
		1327	local $cf::FREEZE = 1;
		1328
		1329	warn "enter emergency map save\n";
		1330
		1331	cf::sync_job {
		1332	warn "begin emergency map save\n";
		1333	$_->save for values %cf::MAP;
		1334	};
		1335
		1336	warn "end emergency map save\n";
		1337	}
		1338
		1339	package cf;
		1340
		1341	=back
		1342
		1343
		1344	=head3 cf::object::player
		1345
		1346	=over 4
		1347
779	=item $object->reply ($npc, $msg[, $flags])	1348	=item $player_object->reply ($npc, $msg[, $flags])
780		1349
781	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1350	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
782	can be C<undef>. Does the right thing when the player is currently in a	1351	can be C<undef>. Does the right thing when the player is currently in a
783	dialogue with the given NPC character.	1352	dialogue with the given NPC character.
784		1353
785	=cut	1354	=cut
786		1355
787	# rough implementation of a future "reply" method that works	1356	# rough implementation of a future "reply" method that works
788	# with dialog boxes.	1357	# with dialog boxes.
		1358	#TODO: the first argument must go, split into a $npc->reply_to ( method
789	sub cf::object::player::reply($$$;$) {	1359	sub cf::object::player::reply($$$;$) {
790	my ($self, $npc, $msg, $flags) = @_;	1360	my ($self, $npc, $msg, $flags) = @_;
791		1361
792	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1362	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
793		1363
…		…
797	$msg = $npc->name . " says: $msg" if $npc;	1367	$msg = $npc->name . " says: $msg" if $npc;
798	$self->message ($msg, $flags);	1368	$self->message ($msg, $flags);
799	}	1369	}
800	}	1370	}
801		1371
802	=item $player->ext_reply ($msgid, $msgtype, %msg)	1372	=item $player_object->may ("access")
803		1373
804	Sends an ext reply to the player.	1374	Returns wether the given player is authorized to access resource "access"
		1375	(e.g. "command_wizcast").
805		1376
806	=cut	1377	=cut
807		1378
808	sub cf::player::ext_reply($$$%) {	1379	sub cf::object::player::may {
		1380	my ($self, $access) = @_;
		1381
		1382	$self->flag (cf::FLAG_WIZ) ||
		1383	(ref $cf::CFG{"may_$access"}
		1384	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1385	: $cf::CFG{"may_$access"})
		1386	}
		1387
		1388	=item $player_object->enter_link
		1389
		1390	Freezes the player and moves him/her to a special map (C<{link}>).
		1391
		1392	The player should be reaosnably safe there for short amounts of time. You
		1393	I<MUST> call C<leave_link> as soon as possible, though.
		1394
		1395	=item $player_object->leave_link ($map, $x, $y)
		1396
		1397	Moves the player out of the specila link map onto the given map. If the
		1398	map is not valid (or omitted), the player will be moved back to the
		1399	location he/she was before the call to C<enter_link>, or, if that fails,
		1400	to the emergency map position.
		1401
		1402	Might block.
		1403
		1404	=cut
		1405
		1406	sub cf::object::player::enter_link {
		1407	my ($self) = @_;
		1408
		1409	return if $self->map == $LINK_MAP;
		1410
		1411	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1412	if $self->map;
		1413
		1414	$self->enter_map ($LINK_MAP, 20, 20);
		1415	$self->deactivate_recursive;
		1416	}
		1417
		1418	sub cf::object::player::leave_link {
		1419	my ($self, $map, $x, $y) = @_;
		1420
		1421	my $link_pos = delete $self->{_link_pos};
		1422
		1423	unless ($map) {
		1424	# restore original map position
		1425	($map, $x, $y) = @{ $link_pos || [] };
		1426	$map = cf::map::find_map $map;
		1427
		1428	unless ($map) {
		1429	($map, $x, $y) = @$EMERGENCY_POSITION;
		1430	$map = cf::map::find_map $map
		1431	or die "FATAL: cannot load emergency map\n";
		1432	}
		1433	}
		1434
		1435	($x, $y) = (-1, -1)
		1436	unless (defined $x) && (defined $y);
		1437
		1438	# use -1 or undef as default coordinates, not 0, 0
		1439	($x, $y) = ($map->enter_x, $map->enter_y)
		1440	if $x <=0 && $y <= 0;
		1441
		1442	$map->load;
		1443
		1444	$self->activate_recursive;
		1445	$self->enter_map ($map, $x, $y);
		1446	}
		1447
		1448	=item $player_object->goto_map ($map, $x, $y)
		1449
		1450	=cut
		1451
		1452	sub cf::object::player::goto_map {
		1453	my ($self, $path, $x, $y) = @_;
		1454
		1455	$self->enter_link;
		1456
		1457	(Coro::async {
		1458	$path = new cf::path $path;
		1459
		1460	my $map = cf::map::find_map $path->as_string;
		1461	$map = $map->customise_for ($self) if $map;
		1462
		1463	warn "entering ", $map->path, " at ($x, $y)\n"
		1464	if $map;
		1465
		1466	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1467
		1468	$self->leave_link ($map, $x, $y);
		1469	})->prio (1);
		1470	}
		1471
		1472	=item $player_object->enter_exit ($exit_object)
		1473
		1474	=cut
		1475
		1476	sub parse_random_map_params {
		1477	my ($spec) = @_;
		1478
		1479	my $rmp = { # defaults
		1480	xsize => 10,
		1481	ysize => 10,
		1482	};
		1483
		1484	for (split /\n/, $spec) {
		1485	my ($k, $v) = split /\s+/, $_, 2;
		1486
		1487	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1488	}
		1489
		1490	$rmp
		1491	}
		1492
		1493	sub prepare_random_map {
		1494	my ($exit) = @_;
		1495
		1496	# all this does is basically replace the /! path by
		1497	# a new random map path (?random/...) with a seed
		1498	# that depends on the exit object
		1499
		1500	my $rmp = parse_random_map_params $exit->msg;
		1501
		1502	if ($exit->map) {
		1503	$rmp->{region} = $exit->map->region_name;
		1504	$rmp->{origin_map} = $exit->map->path;
		1505	$rmp->{origin_x} = $exit->x;
		1506	$rmp->{origin_y} = $exit->y;
		1507	}
		1508
		1509	$rmp->{random_seed} ||= $exit->random_seed;
		1510
		1511	my $data = cf::to_json $rmp;
		1512	my $md5 = Digest::MD5::md5_hex $data;
		1513
		1514	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1515	aio_write $fh, 0, (length $data), $data, 0;
		1516
		1517	$exit->slaying ("?random/$md5");
		1518	$exit->msg (undef);
		1519	}
		1520	}
		1521
		1522	sub cf::object::player::enter_exit {
809	my ($self, $id, %msg) = @_;	1523	my ($self, $exit) = @_;
810		1524
811	$msg{msgid} = $id;	1525	return unless $self->type == cf::PLAYER;
812		1526
813	$self->send ("ext " . to_json \%msg);	1527	$self->enter_link;
		1528
		1529	(Coro::async {
		1530	unless (eval {
		1531
		1532	prepare_random_map $exit
		1533	if $exit->slaying eq "/!";
		1534
		1535	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1536	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1537
		1538	1;
		1539	}) {
		1540	$self->message ("Something went wrong deep within the crossfire server. "
		1541	. "I'll try to bring you back to the map you were before. "
		1542	. "Please report this to the dungeon master",
		1543	cf::NDI_UNIQUE | cf::NDI_RED);
		1544
		1545	warn "ERROR in enter_exit: $@";
		1546	$self->leave_link;
		1547	}
		1548	})->prio (1);
814	}	1549	}
		1550
		1551	=head3 cf::client
		1552
		1553	=over 4
		1554
		1555	=item $client->send_drawinfo ($text, $flags)
		1556
		1557	Sends a drawinfo packet to the client. Circumvents output buffering so
		1558	should not be used under normal circumstances.
		1559
		1560	=cut
		1561
		1562	sub cf::client::send_drawinfo {
		1563	my ($self, $text, $flags) = @_;
		1564
		1565	utf8::encode $text;
		1566	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1567	}
		1568
		1569
		1570	=item $success = $client->query ($flags, "text", \&cb)
		1571
		1572	Queues a query to the client, calling the given callback with
		1573	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1574	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1575
		1576	Queries can fail, so check the return code. Or don't, as queries will become
		1577	reliable at some point in the future.
		1578
		1579	=cut
		1580
		1581	sub cf::client::query {
		1582	my ($self, $flags, $text, $cb) = @_;
		1583
		1584	return unless $self->state == ST_PLAYING
		1585	|| $self->state == ST_SETUP
		1586	|| $self->state == ST_CUSTOM;
		1587
		1588	$self->state (ST_CUSTOM);
		1589
		1590	utf8::encode $text;
		1591	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1592
		1593	$self->send_packet ($self->{query_queue}[0][0])
		1594	if @{ $self->{query_queue} } == 1;
		1595	}
		1596
		1597	cf::client->attach (
		1598	on_reply => sub {
		1599	my ($ns, $msg) = @_;
		1600
		1601	# this weird shuffling is so that direct followup queries
		1602	# get handled first
		1603	my $queue = delete $ns->{query_queue};
		1604
		1605	(shift @$queue)->[1]->($msg);
		1606
		1607	push @{ $ns->{query_queue} }, @$queue;
		1608
		1609	if (@{ $ns->{query_queue} } == @$queue) {
		1610	if (@$queue) {
		1611	$ns->send_packet ($ns->{query_queue}[0][0]);
		1612	} else {
		1613	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1614	}
		1615	}
		1616	},
		1617	);
		1618
		1619	=item $client->coro (\&cb)
		1620
		1621	Create a new coroutine, running the specified callback. The coroutine will
		1622	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1623	or loss of connection).
		1624
		1625	=cut
		1626
		1627	sub cf::client::coro {
		1628	my ($self, $cb) = @_;
		1629
		1630	my $coro; $coro = async {
		1631	eval {
		1632	$cb->();
		1633	};
		1634	warn $@ if $@;
		1635	};
		1636
		1637	$coro->on_destroy (sub {
		1638	delete $self->{_coro}{$coro+0};
		1639	});
		1640
		1641	$self->{_coro}{$coro+0} = $coro;
		1642
		1643	$coro
		1644	}
		1645
		1646	cf::client->attach (
		1647	on_destroy => sub {
		1648	my ($ns) = @_;
		1649
		1650	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1651	},
		1652	);
815		1653
816	=back	1654	=back
817		1655
818	=cut
819
820	#############################################################################
821		1656
822	=head2 SAFE SCRIPTING	1657	=head2 SAFE SCRIPTING
823		1658
824	Functions that provide a safe environment to compile and execute	1659	Functions that provide a safe environment to compile and execute
825	snippets of perl code without them endangering the safety of the server	1660	snippets of perl code without them endangering the safety of the server
826	itself. Looping constructs, I/O operators and other built-in functionality	1661	itself. Looping constructs, I/O operators and other built-in functionality
827	is not available in the safe scripting environment, and the number of	1662	is not available in the safe scripting environment, and the number of
828	functions and methods that cna be called is greatly reduced.	1663	functions and methods that can be called is greatly reduced.
829		1664
830	=cut	1665	=cut
831		1666
832	our $safe = new Safe "safe";	1667	our $safe = new Safe "safe";
833	our $safe_hole = new Safe::Hole;	1668	our $safe_hole = new Safe::Hole;
…		…
840		1675
841	=pod	1676	=pod
842		1677
843	The following fucntions and emthods are available within a safe environment:	1678	The following fucntions and emthods are available within a safe environment:
844		1679
845	cf::object contr pay_amount pay_player	1680	cf::object contr pay_amount pay_player map
846	cf::object::player player	1681	cf::object::player player
847	cf::player peaceful	1682	cf::player peaceful
		1683	cf::map trigger
848		1684
849	=cut	1685	=cut
850		1686
851	for (	1687	for (
852	["cf::object" => qw(contr pay_amount pay_player)],	1688	["cf::object" => qw(contr pay_amount pay_player map)],
853	["cf::object::player" => qw(player)],	1689	["cf::object::player" => qw(player)],
854	["cf::player" => qw(peaceful)],	1690	["cf::player" => qw(peaceful)],
		1691	["cf::map" => qw(trigger)],
855	) {	1692	) {
856	no strict 'refs';	1693	no strict 'refs';
857	my ($pkg, @funs) = @$_;	1694	my ($pkg, @funs) = @$_;
858	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1695	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
859	for @funs;	1696	for @funs;
…		…
969		1806
970	Immediately write the database to disk I<if it is dirty>.	1807	Immediately write the database to disk I<if it is dirty>.
971		1808
972	=cut	1809	=cut
973		1810
		1811	our $DB;
		1812
974	{	1813	{
975	my $db;
976	my $path = cf::localdir . "/database.pst";	1814	my $path = cf::localdir . "/database.pst";
977		1815
978	sub db_load() {	1816	sub db_load() {
979	warn "loading database $path\n";#d# remove later	1817	warn "loading database $path\n";#d# remove later
980	$db = stat $path ? Storable::retrieve $path : { };	1818	$DB = stat $path ? Storable::retrieve $path : { };
981	}	1819	}
982		1820
983	my $pid;	1821	my $pid;
984		1822
985	sub db_save() {	1823	sub db_save() {
986	warn "saving database $path\n";#d# remove later	1824	warn "saving database $path\n";#d# remove later
987	waitpid $pid, 0 if $pid;	1825	waitpid $pid, 0 if $pid;
988	if (0 == ($pid = fork)) {	1826	if (0 == ($pid = fork)) {
989	$db->{_meta}{version} = 1;	1827	$DB->{_meta}{version} = 1;
990	Storable::nstore $db, "$path~";	1828	Storable::nstore $DB, "$path~";
991	rename "$path~", $path;	1829	rename "$path~", $path;
992	cf::_exit 0 if defined $pid;	1830	cf::_exit 0 if defined $pid;
993	}	1831	}
994	}	1832	}
995		1833
…		…
998	sub db_sync() {	1836	sub db_sync() {
999	db_save if $dirty;	1837	db_save if $dirty;
1000	undef $dirty;	1838	undef $dirty;
1001	}	1839	}
1002		1840
1003	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1841	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1004	db_sync;	1842	db_sync;
1005	});	1843	});
1006		1844
1007	sub db_dirty() {	1845	sub db_dirty() {
1008	$dirty = 1;	1846	$dirty = 1;
1009	$idle->start;	1847	$idle->start;
1010	}	1848	}
1011		1849
1012	sub db_get($;$) {	1850	sub db_get($;$) {
1013	@_ >= 2	1851	@_ >= 2
1014	? $db->{$_[0]}{$_[1]}	1852	? $DB->{$_[0]}{$_[1]}
1015	: ($db->{$_[0]} ||= { })	1853	: ($DB->{$_[0]} ||= { })
1016	}	1854	}
1017		1855
1018	sub db_put($$;$) {	1856	sub db_put($$;$) {
1019	if (@_ >= 3) {	1857	if (@_ >= 3) {
1020	$db->{$_[0]}{$_[1]} = $_[2];	1858	$DB->{$_[0]}{$_[1]} = $_[2];
1021	} else {	1859	} else {
1022	$db->{$_[0]} = $_[1];	1860	$DB->{$_[0]} = $_[1];
1023	}	1861	}
1024	db_dirty;	1862	db_dirty;
1025	}	1863	}
1026		1864
1027	attach_global	1865	cf::global->attach (
1028	prio => 10000,	1866	prio => 10000,
1029	on_cleanup => sub {	1867	on_cleanup => sub {
1030	db_sync;	1868	db_sync;
1031	},	1869	},
1032	;	1870	);
1033	}	1871	}
1034		1872
1035	#############################################################################	1873	#############################################################################
1036	# the server's main()	1874	# the server's main()
1037		1875
…		…
1042	local $/;	1880	local $/;
1043	*CFG = YAML::Syck::Load <$fh>;	1881	*CFG = YAML::Syck::Load <$fh>;
1044	}	1882	}
1045		1883
1046	sub main {	1884	sub main {
		1885	# we must not ever block the main coroutine
		1886	local $Coro::idle = sub {
		1887	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		1888	(Coro::unblock_sub {
		1889	Event::one_event;
		1890	})->();
		1891	};
		1892
1047	cfg_load;	1893	cfg_load;
1048	db_load;	1894	db_load;
1049	load_extensions;	1895	load_extensions;
1050	Event::loop;	1896	Event::loop;
1051	}	1897	}
1052		1898
1053	#############################################################################	1899	#############################################################################
1054	# initialisation	1900	# initialisation
1055		1901
1056	sub _perl_reload(&) {	1902	sub reload() {
1057	my ($msg) = @_;	1903	# can/must only be called in main
		1904	if ($Coro::current != $Coro::main) {
		1905	warn "can only reload from main coroutine\n";
		1906	return;
		1907	}
1058		1908
1059	$msg->("reloading...");	1909	warn "reloading...";
		1910
		1911	local $FREEZE = 1;
		1912	cf::emergency_save;
1060		1913
1061	eval {	1914	eval {
		1915	# if anything goes wrong in here, we should simply crash as we already saved
		1916
1062	# cancel all watchers	1917	# cancel all watchers
1063	$_->cancel for Event::all_watchers;	1918	for (Event::all_watchers) {
		1919	$_->cancel if $_->data & WF_AUTOCANCEL;
		1920	}
		1921
		1922	# cancel all extension coros
		1923	$_->cancel for values %EXT_CORO;
		1924	%EXT_CORO = ();
1064		1925
1065	# unload all extensions	1926	# unload all extensions
1066	for (@exts) {	1927	for (@exts) {
1067	$msg->("unloading <$_>");	1928	warn "unloading <$_>";
1068	unload_extension $_;	1929	unload_extension $_;
1069	}	1930	}
1070		1931
1071	# unload all modules loaded from $LIBDIR	1932	# unload all modules loaded from $LIBDIR
1072	while (my ($k, $v) = each %INC) {	1933	while (my ($k, $v) = each %INC) {
1073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1934	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1074		1935
1075	$msg->("removing <$k>");	1936	warn "removing <$k>";
1076	delete $INC{$k};	1937	delete $INC{$k};
1077		1938
1078	$k =~ s/\.pm$//;	1939	$k =~ s/\.pm$//;
1079	$k =~ s/\//::/g;	1940	$k =~ s/\//::/g;
1080		1941
…		…
1085	Symbol::delete_package $k;	1946	Symbol::delete_package $k;
1086	}	1947	}
1087		1948
1088	# sync database to disk	1949	# sync database to disk
1089	cf::db_sync;	1950	cf::db_sync;
		1951	IO::AIO::flush;
1090		1952
1091	# get rid of safe::, as good as possible	1953	# get rid of safe::, as good as possible
1092	Symbol::delete_package "safe::$_"	1954	Symbol::delete_package "safe::$_"
1093	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1955	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1094		1956
1095	# remove register_script_function callbacks	1957	# remove register_script_function callbacks
1096	# TODO	1958	# TODO
1097		1959
1098	# unload cf.pm "a bit"	1960	# unload cf.pm "a bit"
…		…
1101	# don't, removes xs symbols, too,	1963	# don't, removes xs symbols, too,
1102	# and global variables created in xs	1964	# and global variables created in xs
1103	#Symbol::delete_package __PACKAGE__;	1965	#Symbol::delete_package __PACKAGE__;
1104		1966
1105	# reload cf.pm	1967	# reload cf.pm
1106	$msg->("reloading cf.pm");	1968	warn "reloading cf.pm";
1107	require cf;	1969	require cf;
		1970	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1108		1971
1109	# load config and database again	1972	# load config and database again
1110	cf::cfg_load;	1973	cf::cfg_load;
1111	cf::db_load;	1974	cf::db_load;
1112		1975
1113	# load extensions	1976	# load extensions
1114	$msg->("load extensions");	1977	warn "load extensions";
1115	cf::load_extensions;	1978	cf::load_extensions;
1116		1979
1117	# reattach attachments to objects	1980	# reattach attachments to objects
1118	$msg->("reattach");	1981	warn "reattach";
1119	_global_reattach;	1982	_global_reattach;
1120	};	1983	};
1121	$msg->($@) if $@;
1122		1984
1123	$msg->("reloaded");	1985	if ($@) {
		1986	warn $@;
		1987	warn "error while reloading, exiting.";
		1988	exit 1;
		1989	}
		1990
		1991	warn "reloaded successfully";
1124	};	1992	};
1125		1993
1126	sub perl_reload() {	1994	#############################################################################
1127	_perl_reload {
1128	warn $_[0];
1129	print "$_[0]\n";
1130	};
1131	}
1132		1995
		1996	unless ($LINK_MAP) {
		1997	$LINK_MAP = cf::map::new;
		1998
		1999	$LINK_MAP->width (41);
		2000	$LINK_MAP->height (41);
		2001	$LINK_MAP->alloc;
		2002	$LINK_MAP->path ("{link}");
		2003	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2004	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2005
		2006	# dirty hack because... archetypes are not yet loaded
		2007	Event->timer (
		2008	after => 2,
		2009	cb => sub {
		2010	$_[0]->w->cancel;
		2011
		2012	# provide some exits "home"
		2013	my $exit = cf::object::new "exit";
		2014
		2015	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2016	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2017	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2018
		2019	$LINK_MAP->insert ($exit->clone, 19, 19);
		2020	$LINK_MAP->insert ($exit->clone, 19, 20);
		2021	$LINK_MAP->insert ($exit->clone, 19, 21);
		2022	$LINK_MAP->insert ($exit->clone, 20, 19);
		2023	$LINK_MAP->insert ($exit->clone, 20, 21);
		2024	$LINK_MAP->insert ($exit->clone, 21, 19);
		2025	$LINK_MAP->insert ($exit->clone, 21, 20);
		2026	$LINK_MAP->insert ($exit->clone, 21, 21);
		2027
		2028	$exit->destroy;
		2029	});
		2030
		2031	$LINK_MAP->{deny_save} = 1;
		2032	$LINK_MAP->{deny_reset} = 1;
		2033
		2034	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2035	}
		2036
		2037	register "<global>", __PACKAGE__;
		2038
1133	register_command "perl-reload", 0, sub {	2039	register_command "reload" => sub {
1134	my ($who, $arg) = @_;	2040	my ($who, $arg) = @_;
1135		2041
1136	if ($who->flag (FLAG_WIZ)) {	2042	if ($who->flag (FLAG_WIZ)) {
1137	_perl_reload {	2043	$who->message ("start of reload.");
1138	warn $_[0];	2044	reload;
1139	$who->message ($_[0]);	2045	$who->message ("end of reload.");
1140	};
1141	}	2046	}
1142	};	2047	};
1143		2048
1144	register "<global>", __PACKAGE__;
1145
1146	unshift @INC, $LIBDIR;	2049	unshift @INC, $LIBDIR;
1147		2050
1148	$TICK_WATCHER = Event->timer (	2051	$TICK_WATCHER = Event->timer (
		2052	reentrant => 0,
1149	prio => 1,	2053	prio => 0,
1150	at => $NEXT_TICK || 1,	2054	at => $NEXT_TICK || $TICK,
		2055	data => WF_AUTOCANCEL,
1151	cb => sub {	2056	cb => sub {
		2057	unless ($FREEZE) {
1152	cf::server_tick; # one server iteration	2058	cf::server_tick; # one server iteration
		2059	$RUNTIME += $TICK;
		2060	}
1153		2061
1154	my $NOW = Event::time;
1155	$NEXT_TICK += $TICK;	2062	$NEXT_TICK += $TICK;
1156		2063
1157	# if we are delayed by four ticks, skip them all	2064	# if we are delayed by four ticks or more, skip them all
1158	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2065	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1159		2066
1160	$TICK_WATCHER->at ($NEXT_TICK);	2067	$TICK_WATCHER->at ($NEXT_TICK);
1161	$TICK_WATCHER->start;	2068	$TICK_WATCHER->start;
1162	},	2069	},
1163	);	2070	);
1164		2071
		2072	IO::AIO::max_poll_time $TICK * 0.2;
		2073
		2074	Event->io (
		2075	fd => IO::AIO::poll_fileno,
		2076	poll => 'r',
		2077	prio => 5,
		2078	data => WF_AUTOCANCEL,
		2079	cb => \&IO::AIO::poll_cb,
		2080	);
		2081
		2082	Event->timer (
		2083	data => WF_AUTOCANCEL,
		2084	after => 0,
		2085	interval => 10,
		2086	cb => sub {
		2087	(Coro::unblock_sub {
		2088	write_runtime
		2089	or warn "ERROR: unable to write runtime file: $!";
		2090	})->();
		2091	},
		2092	);
		2093
1165	1	2094	1
1166		2095

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