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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 1.116 by root, Mon Jan 1 17:30:34 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Digest::MD5;
		21	use Fcntl;
		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_save} = $cf::RUNTIME;
		1149	$map->last_access ($cf::RUNTIME);
		1150
		1151	if ($map->should_reset) {
		1152	$map->reset;
		1153	$map = find_map $path;
		1154	}
		1155
		1156	$cf::MAP{$key} = $map
		1157	}
		1158	}
		1159
		1160	sub load {
		1161	my ($self) = @_;
		1162
		1163	return if $self->in_memory != cf::MAP_SWAPPED;
		1164
		1165	$self->in_memory (cf::MAP_LOADING);
		1166
		1167	my $path = $self->{path};
		1168
		1169	$self->alloc;
		1170	$self->load_objects ($self->{load_path}, 1)
		1171	or return;
		1172
		1173	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1174	if delete $self->{load_original};
		1175
		1176	if (my $uniq = $path->uniq_path) {
		1177	utf8::encode $uniq;
		1178	if (aio_open $uniq, O_RDONLY, 0) {
		1179	$self->clear_unique_items;
		1180	$self->load_objects ($uniq, 0);
		1181	}
		1182	}
		1183
		1184	# now do the right thing for maps
		1185	$self->link_multipart_objects;
		1186
		1187	if ($self->{path}->is_style_map) {
		1188	$self->{deny_save} = 1;
		1189	$self->{deny_reset} = 1;
		1190	} else {
		1191	$self->fix_auto_apply;
		1192	$self->decay_objects;
		1193	$self->update_buttons;
		1194	$self->set_darkness_map;
		1195	$self->difficulty ($self->estimate_difficulty)
		1196	unless $self->difficulty;
		1197	$self->activate;
		1198	}
		1199
		1200	$self->in_memory (cf::MAP_IN_MEMORY);
		1201	}
		1202
		1203	sub load_map_sync {
		1204	my ($path, $origin) = @_;
		1205
		1206	#warn "load_map_sync<$path, $origin>\n";#d#
		1207
		1208	cf::sync_job {
		1209	my $map = cf::map::find_map $path, $origin
		1210	or return;
		1211	$map->load;
		1212	$map
		1213	}
		1214	}
		1215
		1216	sub save {
		1217	my ($self) = @_;
		1218
		1219	my $save = $self->{path}->save_path; utf8::encode $save;
		1220	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1221
		1222	$self->{last_save} = $cf::RUNTIME;
		1223
		1224	return unless $self->dirty;
		1225
		1226	$self->{load_path} = $save;
		1227
		1228	return if $self->{deny_save};
		1229
		1230	if ($uniq) {
		1231	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1232	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1233	} else {
		1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1235	}
		1236	}
		1237
		1238	sub swap_out {
		1239	my ($self) = @_;
		1240
		1241	return if $self->players;
		1242	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1243	return if $self->{deny_save};
		1244
		1245	$self->save;
		1246	$self->clear;
		1247	$self->in_memory (cf::MAP_SWAPPED);
		1248	}
		1249
		1250	sub reset_at {
		1251	my ($self) = @_;
		1252
		1253	# TODO: safety, remove and allow resettable per-player maps
		1254	return 1e99 if $self->{path}{user_rel};
		1255	return 1e99 if $self->{deny_reset};
		1256
		1257	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1258	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1259
		1260	$time + $to
		1261	}
		1262
		1263	sub should_reset {
		1264	my ($self) = @_;
		1265
		1266	$self->reset_at <= $cf::RUNTIME
		1267	}
		1268
		1269	sub unlink_save {
		1270	my ($self) = @_;
		1271
		1272	utf8::encode (my $save = $self->{path}->save_path);
		1273	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1274	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1275	}
		1276
		1277	sub rename {
		1278	my ($self, $new_path) = @_;
		1279
		1280	$self->unlink_save;
		1281
		1282	delete $cf::MAP{$self->path};
		1283	$self->{path} = new cf::path $new_path;
		1284	$self->path ($self->{path}->as_string);
		1285	$cf::MAP{$self->path} = $self;
		1286
		1287	$self->save;
		1288	}
		1289
		1290	sub reset {
		1291	my ($self) = @_;
		1292
		1293	return if $self->players;
		1294	return if $self->{path}{user_rel};#d#
		1295
		1296	warn "resetting map ", $self->path;#d#
		1297
		1298	delete $cf::MAP{$self->path};
		1299
		1300	$_->clear_links_to ($self) for values %cf::MAP;
		1301
		1302	$self->unlink_save;
		1303	$self->destroy;
		1304	}
		1305
		1306	my $nuke_counter = "aaaa";
		1307
		1308	sub nuke {
		1309	my ($self) = @_;
		1310
		1311	$self->{deny_save} = 1;
		1312	$self->reset_timeout (1);
		1313	$self->rename ("{nuke}/" . ($nuke_counter++));
		1314	$self->reset; # polite request, might not happen
		1315	}
		1316
		1317	sub customise_for {
		1318	my ($map, $ob) = @_;
		1319
		1320	if ($map->per_player) {
		1321	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1322	}
		1323
		1324	$map
		1325	}
		1326
		1327	sub emergency_save {
		1328	local $cf::FREEZE = 1;
		1329
		1330	warn "enter emergency map save\n";
		1331
		1332	cf::sync_job {
		1333	warn "begin emergency map save\n";
		1334	$_->save for values %cf::MAP;
		1335	};
		1336
		1337	warn "end emergency map save\n";
		1338	}
		1339
		1340	package cf;
		1341
		1342	=back
		1343
		1344
		1345	=head3 cf::object::player
		1346
		1347	=over 4
		1348
779	=item $object->reply ($npc, $msg[, $flags])	1349	=item $player_object->reply ($npc, $msg[, $flags])
780		1350
781	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1351	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
782	can be C<undef>. Does the right thing when the player is currently in a	1352	can be C<undef>. Does the right thing when the player is currently in a
783	dialogue with the given NPC character.	1353	dialogue with the given NPC character.
784		1354
785	=cut	1355	=cut
786		1356
787	# rough implementation of a future "reply" method that works	1357	# rough implementation of a future "reply" method that works
788	# with dialog boxes.	1358	# with dialog boxes.
		1359	#TODO: the first argument must go, split into a $npc->reply_to ( method
789	sub cf::object::player::reply($$$;$) {	1360	sub cf::object::player::reply($$$;$) {
790	my ($self, $npc, $msg, $flags) = @_;	1361	my ($self, $npc, $msg, $flags) = @_;
791		1362
792	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1363	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
793		1364
…		…
797	$msg = $npc->name . " says: $msg" if $npc;	1368	$msg = $npc->name . " says: $msg" if $npc;
798	$self->message ($msg, $flags);	1369	$self->message ($msg, $flags);
799	}	1370	}
800	}	1371	}
801		1372
802	=item $player->ext_reply ($msgid, $msgtype, %msg)	1373	=item $player_object->may ("access")
803		1374
804	Sends an ext reply to the player.	1375	Returns wether the given player is authorized to access resource "access"
		1376	(e.g. "command_wizcast").
805		1377
806	=cut	1378	=cut
807		1379
808	sub cf::player::ext_reply($$$%) {	1380	sub cf::object::player::may {
		1381	my ($self, $access) = @_;
		1382
		1383	$self->flag (cf::FLAG_WIZ) ||
		1384	(ref $cf::CFG{"may_$access"}
		1385	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1386	: $cf::CFG{"may_$access"})
		1387	}
		1388
		1389	=item $player_object->enter_link
		1390
		1391	Freezes the player and moves him/her to a special map (C<{link}>).
		1392
		1393	The player should be reaosnably safe there for short amounts of time. You
		1394	I<MUST> call C<leave_link> as soon as possible, though.
		1395
		1396	=item $player_object->leave_link ($map, $x, $y)
		1397
		1398	Moves the player out of the specila link map onto the given map. If the
		1399	map is not valid (or omitted), the player will be moved back to the
		1400	location he/she was before the call to C<enter_link>, or, if that fails,
		1401	to the emergency map position.
		1402
		1403	Might block.
		1404
		1405	=cut
		1406
		1407	sub cf::object::player::enter_link {
		1408	my ($self) = @_;
		1409
		1410	return if $self->map == $LINK_MAP;
		1411
		1412	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1413	if $self->map;
		1414
		1415	$self->enter_map ($LINK_MAP, 20, 20);
		1416	$self->deactivate_recursive;
		1417	}
		1418
		1419	sub cf::object::player::leave_link {
		1420	my ($self, $map, $x, $y) = @_;
		1421
		1422	my $link_pos = delete $self->{_link_pos};
		1423
		1424	unless ($map) {
		1425	# restore original map position
		1426	($map, $x, $y) = @{ $link_pos || [] };
		1427	$map = cf::map::find_map $map;
		1428
		1429	unless ($map) {
		1430	($map, $x, $y) = @$EMERGENCY_POSITION;
		1431	$map = cf::map::find_map $map
		1432	or die "FATAL: cannot load emergency map\n";
		1433	}
		1434	}
		1435
		1436	($x, $y) = (-1, -1)
		1437	unless (defined $x) && (defined $y);
		1438
		1439	# use -1 or undef as default coordinates, not 0, 0
		1440	($x, $y) = ($map->enter_x, $map->enter_y)
		1441	if $x <=0 && $y <= 0;
		1442
		1443	$map->load;
		1444
		1445	$self->activate_recursive;
		1446	$self->enter_map ($map, $x, $y);
		1447	}
		1448
		1449	=item $player_object->goto_map ($map, $x, $y)
		1450
		1451	=cut
		1452
		1453	sub cf::object::player::goto_map {
		1454	my ($self, $path, $x, $y) = @_;
		1455
		1456	$self->enter_link;
		1457
		1458	(Coro::async {
		1459	$path = new cf::path $path;
		1460
		1461	my $map = cf::map::find_map $path->as_string;
		1462	$map = $map->customise_for ($self) if $map;
		1463
		1464	warn "entering ", $map->path, " at ($x, $y)\n"
		1465	if $map;
		1466
		1467	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1468
		1469	$self->leave_link ($map, $x, $y);
		1470	})->prio (1);
		1471	}
		1472
		1473	=item $player_object->enter_exit ($exit_object)
		1474
		1475	=cut
		1476
		1477	sub parse_random_map_params {
		1478	my ($spec) = @_;
		1479
		1480	my $rmp = { # defaults
		1481	xsize => 10,
		1482	ysize => 10,
		1483	};
		1484
		1485	for (split /\n/, $spec) {
		1486	my ($k, $v) = split /\s+/, $_, 2;
		1487
		1488	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1489	}
		1490
		1491	$rmp
		1492	}
		1493
		1494	sub prepare_random_map {
		1495	my ($exit) = @_;
		1496
		1497	# all this does is basically replace the /! path by
		1498	# a new random map path (?random/...) with a seed
		1499	# that depends on the exit object
		1500
		1501	my $rmp = parse_random_map_params $exit->msg;
		1502
		1503	if ($exit->map) {
		1504	$rmp->{region} = $exit->map->region_name;
		1505	$rmp->{origin_map} = $exit->map->path;
		1506	$rmp->{origin_x} = $exit->x;
		1507	$rmp->{origin_y} = $exit->y;
		1508	}
		1509
		1510	$rmp->{random_seed} ||= $exit->random_seed;
		1511
		1512	my $data = cf::to_json $rmp;
		1513	my $md5 = Digest::MD5::md5_hex $data;
		1514
		1515	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1516	aio_write $fh, 0, (length $data), $data, 0;
		1517
		1518	$exit->slaying ("?random/$md5");
		1519	$exit->msg (undef);
		1520	}
		1521	}
		1522
		1523	sub cf::object::player::enter_exit {
809	my ($self, $id, %msg) = @_;	1524	my ($self, $exit) = @_;
810		1525
811	$msg{msgid} = $id;	1526	return unless $self->type == cf::PLAYER;
812		1527
813	$self->send ("ext " . to_json \%msg);	1528	$self->enter_link;
		1529
		1530	(Coro::async {
		1531	unless (eval {
		1532
		1533	prepare_random_map $exit
		1534	if $exit->slaying eq "/!";
		1535
		1536	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1537	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1538
		1539	1;
		1540	}) {
		1541	$self->message ("Something went wrong deep within the crossfire server. "
		1542	. "I'll try to bring you back to the map you were before. "
		1543	. "Please report this to the dungeon master",
		1544	cf::NDI_UNIQUE | cf::NDI_RED);
		1545
		1546	warn "ERROR in enter_exit: $@";
		1547	$self->leave_link;
		1548	}
		1549	})->prio (1);
814	}	1550	}
		1551
		1552	=head3 cf::client
		1553
		1554	=over 4
		1555
		1556	=item $client->send_drawinfo ($text, $flags)
		1557
		1558	Sends a drawinfo packet to the client. Circumvents output buffering so
		1559	should not be used under normal circumstances.
		1560
		1561	=cut
		1562
		1563	sub cf::client::send_drawinfo {
		1564	my ($self, $text, $flags) = @_;
		1565
		1566	utf8::encode $text;
		1567	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1568	}
		1569
		1570
		1571	=item $success = $client->query ($flags, "text", \&cb)
		1572
		1573	Queues a query to the client, calling the given callback with
		1574	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1575	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1576
		1577	Queries can fail, so check the return code. Or don't, as queries will become
		1578	reliable at some point in the future.
		1579
		1580	=cut
		1581
		1582	sub cf::client::query {
		1583	my ($self, $flags, $text, $cb) = @_;
		1584
		1585	return unless $self->state == ST_PLAYING
		1586	|| $self->state == ST_SETUP
		1587	|| $self->state == ST_CUSTOM;
		1588
		1589	$self->state (ST_CUSTOM);
		1590
		1591	utf8::encode $text;
		1592	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1593
		1594	$self->send_packet ($self->{query_queue}[0][0])
		1595	if @{ $self->{query_queue} } == 1;
		1596	}
		1597
		1598	cf::client->attach (
		1599	on_reply => sub {
		1600	my ($ns, $msg) = @_;
		1601
		1602	# this weird shuffling is so that direct followup queries
		1603	# get handled first
		1604	my $queue = delete $ns->{query_queue};
		1605
		1606	(shift @$queue)->[1]->($msg);
		1607
		1608	push @{ $ns->{query_queue} }, @$queue;
		1609
		1610	if (@{ $ns->{query_queue} } == @$queue) {
		1611	if (@$queue) {
		1612	$ns->send_packet ($ns->{query_queue}[0][0]);
		1613	} else {
		1614	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1615	}
		1616	}
		1617	},
		1618	);
		1619
		1620	=item $client->coro (\&cb)
		1621
		1622	Create a new coroutine, running the specified callback. The coroutine will
		1623	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1624	or loss of connection).
		1625
		1626	=cut
		1627
		1628	sub cf::client::coro {
		1629	my ($self, $cb) = @_;
		1630
		1631	my $coro; $coro = async {
		1632	eval {
		1633	$cb->();
		1634	};
		1635	warn $@ if $@;
		1636	};
		1637
		1638	$coro->on_destroy (sub {
		1639	delete $self->{_coro}{$coro+0};
		1640	});
		1641
		1642	$self->{_coro}{$coro+0} = $coro;
		1643
		1644	$coro
		1645	}
		1646
		1647	cf::client->attach (
		1648	on_destroy => sub {
		1649	my ($ns) = @_;
		1650
		1651	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1652	},
		1653	);
815		1654
816	=back	1655	=back
817		1656
818	=cut
819
820	#############################################################################
821		1657
822	=head2 SAFE SCRIPTING	1658	=head2 SAFE SCRIPTING
823		1659
824	Functions that provide a safe environment to compile and execute	1660	Functions that provide a safe environment to compile and execute
825	snippets of perl code without them endangering the safety of the server	1661	snippets of perl code without them endangering the safety of the server
826	itself. Looping constructs, I/O operators and other built-in functionality	1662	itself. Looping constructs, I/O operators and other built-in functionality
827	is not available in the safe scripting environment, and the number of	1663	is not available in the safe scripting environment, and the number of
828	functions and methods that cna be called is greatly reduced.	1664	functions and methods that can be called is greatly reduced.
829		1665
830	=cut	1666	=cut
831		1667
832	our $safe = new Safe "safe";	1668	our $safe = new Safe "safe";
833	our $safe_hole = new Safe::Hole;	1669	our $safe_hole = new Safe::Hole;
…		…
840		1676
841	=pod	1677	=pod
842		1678
843	The following fucntions and emthods are available within a safe environment:	1679	The following fucntions and emthods are available within a safe environment:
844		1680
845	cf::object contr pay_amount pay_player	1681	cf::object contr pay_amount pay_player map
846	cf::object::player player	1682	cf::object::player player
847	cf::player peaceful	1683	cf::player peaceful
		1684	cf::map trigger
848		1685
849	=cut	1686	=cut
850		1687
851	for (	1688	for (
852	["cf::object" => qw(contr pay_amount pay_player)],	1689	["cf::object" => qw(contr pay_amount pay_player map)],
853	["cf::object::player" => qw(player)],	1690	["cf::object::player" => qw(player)],
854	["cf::player" => qw(peaceful)],	1691	["cf::player" => qw(peaceful)],
		1692	["cf::map" => qw(trigger)],
855	) {	1693	) {
856	no strict 'refs';	1694	no strict 'refs';
857	my ($pkg, @funs) = @$_;	1695	my ($pkg, @funs) = @$_;
858	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1696	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
859	for @funs;	1697	for @funs;
…		…
969		1807
970	Immediately write the database to disk I<if it is dirty>.	1808	Immediately write the database to disk I<if it is dirty>.
971		1809
972	=cut	1810	=cut
973		1811
		1812	our $DB;
		1813
974	{	1814	{
975	my $db;
976	my $path = cf::localdir . "/database.pst";	1815	my $path = cf::localdir . "/database.pst";
977		1816
978	sub db_load() {	1817	sub db_load() {
979	warn "loading database $path\n";#d# remove later	1818	warn "loading database $path\n";#d# remove later
980	$db = stat $path ? Storable::retrieve $path : { };	1819	$DB = stat $path ? Storable::retrieve $path : { };
981	}	1820	}
982		1821
983	my $pid;	1822	my $pid;
984		1823
985	sub db_save() {	1824	sub db_save() {
986	warn "saving database $path\n";#d# remove later	1825	warn "saving database $path\n";#d# remove later
987	waitpid $pid, 0 if $pid;	1826	waitpid $pid, 0 if $pid;
988	if (0 == ($pid = fork)) {	1827	if (0 == ($pid = fork)) {
989	$db->{_meta}{version} = 1;	1828	$DB->{_meta}{version} = 1;
990	Storable::nstore $db, "$path~";	1829	Storable::nstore $DB, "$path~";
991	rename "$path~", $path;	1830	rename "$path~", $path;
992	cf::_exit 0 if defined $pid;	1831	cf::_exit 0 if defined $pid;
993	}	1832	}
994	}	1833	}
995		1834
…		…
998	sub db_sync() {	1837	sub db_sync() {
999	db_save if $dirty;	1838	db_save if $dirty;
1000	undef $dirty;	1839	undef $dirty;
1001	}	1840	}
1002		1841
1003	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1842	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1004	db_sync;	1843	db_sync;
1005	});	1844	});
1006		1845
1007	sub db_dirty() {	1846	sub db_dirty() {
1008	$dirty = 1;	1847	$dirty = 1;
1009	$idle->start;	1848	$idle->start;
1010	}	1849	}
1011		1850
1012	sub db_get($;$) {	1851	sub db_get($;$) {
1013	@_ >= 2	1852	@_ >= 2
1014	? $db->{$_[0]}{$_[1]}	1853	? $DB->{$_[0]}{$_[1]}
1015	: ($db->{$_[0]} ||= { })	1854	: ($DB->{$_[0]} ||= { })
1016	}	1855	}
1017		1856
1018	sub db_put($$;$) {	1857	sub db_put($$;$) {
1019	if (@_ >= 3) {	1858	if (@_ >= 3) {
1020	$db->{$_[0]}{$_[1]} = $_[2];	1859	$DB->{$_[0]}{$_[1]} = $_[2];
1021	} else {	1860	} else {
1022	$db->{$_[0]} = $_[1];	1861	$DB->{$_[0]} = $_[1];
1023	}	1862	}
1024	db_dirty;	1863	db_dirty;
1025	}	1864	}
1026		1865
1027	attach_global	1866	cf::global->attach (
1028	prio => 10000,	1867	prio => 10000,
1029	on_cleanup => sub {	1868	on_cleanup => sub {
1030	db_sync;	1869	db_sync;
1031	},	1870	},
1032	;	1871	);
1033	}	1872	}
1034		1873
1035	#############################################################################	1874	#############################################################################
1036	# the server's main()	1875	# the server's main()
1037		1876
…		…
1042	local $/;	1881	local $/;
1043	*CFG = YAML::Syck::Load <$fh>;	1882	*CFG = YAML::Syck::Load <$fh>;
1044	}	1883	}
1045		1884
1046	sub main {	1885	sub main {
		1886	# we must not ever block the main coroutine
		1887	local $Coro::idle = sub {
		1888	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		1889	(Coro::unblock_sub {
		1890	Event::one_event;
		1891	})->();
		1892	};
		1893
1047	cfg_load;	1894	cfg_load;
1048	db_load;	1895	db_load;
1049	load_extensions;	1896	load_extensions;
1050	Event::loop;	1897	Event::loop;
1051	}	1898	}
1052		1899
1053	#############################################################################	1900	#############################################################################
1054	# initialisation	1901	# initialisation
1055		1902
1056	sub _perl_reload(&) {	1903	sub reload() {
1057	my ($msg) = @_;	1904	# can/must only be called in main
		1905	if ($Coro::current != $Coro::main) {
		1906	warn "can only reload from main coroutine\n";
		1907	return;
		1908	}
1058		1909
1059	$msg->("reloading...");	1910	warn "reloading...";
		1911
		1912	local $FREEZE = 1;
		1913	cf::emergency_save;
1060		1914
1061	eval {	1915	eval {
		1916	# if anything goes wrong in here, we should simply crash as we already saved
		1917
1062	# cancel all watchers	1918	# cancel all watchers
1063	$_->cancel for Event::all_watchers;	1919	for (Event::all_watchers) {
		1920	$_->cancel if $_->data & WF_AUTOCANCEL;
		1921	}
		1922
		1923	# cancel all extension coros
		1924	$_->cancel for values %EXT_CORO;
		1925	%EXT_CORO = ();
1064		1926
1065	# unload all extensions	1927	# unload all extensions
1066	for (@exts) {	1928	for (@exts) {
1067	$msg->("unloading <$_>");	1929	warn "unloading <$_>";
1068	unload_extension $_;	1930	unload_extension $_;
1069	}	1931	}
1070		1932
1071	# unload all modules loaded from $LIBDIR	1933	# unload all modules loaded from $LIBDIR
1072	while (my ($k, $v) = each %INC) {	1934	while (my ($k, $v) = each %INC) {
1073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1935	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1074		1936
1075	$msg->("removing <$k>");	1937	warn "removing <$k>";
1076	delete $INC{$k};	1938	delete $INC{$k};
1077		1939
1078	$k =~ s/\.pm$//;	1940	$k =~ s/\.pm$//;
1079	$k =~ s/\//::/g;	1941	$k =~ s/\//::/g;
1080		1942
…		…
1085	Symbol::delete_package $k;	1947	Symbol::delete_package $k;
1086	}	1948	}
1087		1949
1088	# sync database to disk	1950	# sync database to disk
1089	cf::db_sync;	1951	cf::db_sync;
		1952	IO::AIO::flush;
1090		1953
1091	# get rid of safe::, as good as possible	1954	# get rid of safe::, as good as possible
1092	Symbol::delete_package "safe::$_"	1955	Symbol::delete_package "safe::$_"
1093	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1956	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1094		1957
1095	# remove register_script_function callbacks	1958	# remove register_script_function callbacks
1096	# TODO	1959	# TODO
1097		1960
1098	# unload cf.pm "a bit"	1961	# unload cf.pm "a bit"
…		…
1101	# don't, removes xs symbols, too,	1964	# don't, removes xs symbols, too,
1102	# and global variables created in xs	1965	# and global variables created in xs
1103	#Symbol::delete_package __PACKAGE__;	1966	#Symbol::delete_package __PACKAGE__;
1104		1967
1105	# reload cf.pm	1968	# reload cf.pm
1106	$msg->("reloading cf.pm");	1969	warn "reloading cf.pm";
1107	require cf;	1970	require cf;
		1971	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1108		1972
1109	# load config and database again	1973	# load config and database again
1110	cf::cfg_load;	1974	cf::cfg_load;
1111	cf::db_load;	1975	cf::db_load;
1112		1976
1113	# load extensions	1977	# load extensions
1114	$msg->("load extensions");	1978	warn "load extensions";
1115	cf::load_extensions;	1979	cf::load_extensions;
1116		1980
1117	# reattach attachments to objects	1981	# reattach attachments to objects
1118	$msg->("reattach");	1982	warn "reattach";
1119	_global_reattach;	1983	_global_reattach;
1120	};	1984	};
1121	$msg->($@) if $@;
1122		1985
1123	$msg->("reloaded");	1986	if ($@) {
		1987	warn $@;
		1988	warn "error while reloading, exiting.";
		1989	exit 1;
		1990	}
		1991
		1992	warn "reloaded successfully";
1124	};	1993	};
1125		1994
1126	sub perl_reload() {	1995	#############################################################################
1127	_perl_reload {
1128	warn $_[0];
1129	print "$_[0]\n";
1130	};
1131	}
1132		1996
		1997	unless ($LINK_MAP) {
		1998	$LINK_MAP = cf::map::new;
		1999
		2000	$LINK_MAP->width (41);
		2001	$LINK_MAP->height (41);
		2002	$LINK_MAP->alloc;
		2003	$LINK_MAP->path ("{link}");
		2004	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2005	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2006
		2007	# dirty hack because... archetypes are not yet loaded
		2008	Event->timer (
		2009	after => 2,
		2010	cb => sub {
		2011	$_[0]->w->cancel;
		2012
		2013	# provide some exits "home"
		2014	my $exit = cf::object::new "exit";
		2015
		2016	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2017	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2018	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2019
		2020	$LINK_MAP->insert ($exit->clone, 19, 19);
		2021	$LINK_MAP->insert ($exit->clone, 19, 20);
		2022	$LINK_MAP->insert ($exit->clone, 19, 21);
		2023	$LINK_MAP->insert ($exit->clone, 20, 19);
		2024	$LINK_MAP->insert ($exit->clone, 20, 21);
		2025	$LINK_MAP->insert ($exit->clone, 21, 19);
		2026	$LINK_MAP->insert ($exit->clone, 21, 20);
		2027	$LINK_MAP->insert ($exit->clone, 21, 21);
		2028
		2029	$exit->destroy;
		2030	});
		2031
		2032	$LINK_MAP->{deny_save} = 1;
		2033	$LINK_MAP->{deny_reset} = 1;
		2034
		2035	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2036	}
		2037
		2038	register "<global>", __PACKAGE__;
		2039
1133	register_command "perl-reload", 0, sub {	2040	register_command "reload" => sub {
1134	my ($who, $arg) = @_;	2041	my ($who, $arg) = @_;
1135		2042
1136	if ($who->flag (FLAG_WIZ)) {	2043	if ($who->flag (FLAG_WIZ)) {
1137	_perl_reload {	2044	$who->message ("start of reload.");
1138	warn $_[0];	2045	reload;
1139	$who->message ($_[0]);	2046	$who->message ("end of reload.");
1140	};
1141	}	2047	}
1142	};	2048	};
1143		2049
1144	register "<global>", __PACKAGE__;
1145
1146	unshift @INC, $LIBDIR;	2050	unshift @INC, $LIBDIR;
1147		2051
1148	$TICK_WATCHER = Event->timer (	2052	$TICK_WATCHER = Event->timer (
		2053	reentrant => 0,
1149	prio => 1,	2054	prio => 0,
1150	at => $NEXT_TICK || 1,	2055	at => $NEXT_TICK || $TICK,
		2056	data => WF_AUTOCANCEL,
1151	cb => sub {	2057	cb => sub {
		2058	unless ($FREEZE) {
1152	cf::server_tick; # one server iteration	2059	cf::server_tick; # one server iteration
		2060	$RUNTIME += $TICK;
		2061	}
1153		2062
1154	my $NOW = Event::time;
1155	$NEXT_TICK += $TICK;	2063	$NEXT_TICK += $TICK;
1156		2064
1157	# if we are delayed by four ticks, skip them all	2065	# if we are delayed by four ticks or more, skip them all
1158	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2066	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1159		2067
1160	$TICK_WATCHER->at ($NEXT_TICK);	2068	$TICK_WATCHER->at ($NEXT_TICK);
1161	$TICK_WATCHER->start;	2069	$TICK_WATCHER->start;
1162	},	2070	},
1163	);	2071	);
1164		2072
		2073	IO::AIO::max_poll_time $TICK * 0.2;
		2074
		2075	Event->io (
		2076	fd => IO::AIO::poll_fileno,
		2077	poll => 'r',
		2078	prio => 5,
		2079	data => WF_AUTOCANCEL,
		2080	cb => \&IO::AIO::poll_cb,
		2081	);
		2082
		2083	Event->timer (
		2084	data => WF_AUTOCANCEL,
		2085	after => 0,
		2086	interval => 10,
		2087	cb => sub {
		2088	(Coro::unblock_sub {
		2089	write_runtime
		2090	or warn "ERROR: unable to write runtime file: $!";
		2091	})->();
		2092	},
		2093	);
		2094
1165	1	2095	1
1166		2096

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