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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.70 by root, Sun Oct 1 10:55:37 2006 UTC vs.
Revision 1.114 by root, Mon Jan 1 16:00:10 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 ();
		23	use YAML::Syck ();
10	use Time::HiRes;	24	use Time::HiRes;
11	use Event;	25
12	$Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
13		27
14	use strict;	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		29	$YAML::Syck::ImplicitUnicode = 1;
15		30
16	_init_vars;	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
17		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		34
18	our %COMMAND = ();	35	our %COMMAND = ();
		36	our %COMMAND_TIME = ();
		37	our %EXTCMD = ();
		38
19	our @EVENT;	39	our @EVENT;
20	our $LIBDIR = maps_directory "perl";	40	our $LIBDIR = datadir . "/ext";
21		41
22	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
23	our $TICK_WATCHER;	43	our $TICK_WATCHER;
24	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
25		46
26	our %CFG;	47	our %CFG;
27		48
		49	our $UPTIME; $UPTIME ||= time;
		50	our $RUNTIME;
		51
		52	our %MAP; # all maps
		53	our $LINK_MAP; # the special {link} map
		54	our $FREEZE;
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO;
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		63	open my $fh, "<", cf::localdir . "/runtime"
		64	or die "unable to read runtime file: $!";
		65	$RUNTIME = <$fh> + 0.;
		66	}
		67
		68	mkdir cf::localdir;
		69	mkdir cf::localdir . "/" . cf::playerdir;
		70	mkdir cf::localdir . "/" . cf::tmpdir;
		71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
		73
		74	# a special map that is always available
		75	our $LINK_MAP;
		76
		77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		78
28	#############################################################################	79	#############################################################################
29		80
30	=head2 GLOBAL VARIABLES	81	=head2 GLOBAL VARIABLES
31		82
32	=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.
33		93
34	=item $cf::LIBDIR	94	=item $cf::LIBDIR
35		95
36	The perl library directory, where extensions and cf-specific modules can	96	The perl library directory, where extensions and cf-specific modules can
37	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.
38		102
39	=item $cf::TICK	103	=item $cf::TICK
40		104
41	The interval between server ticks, in seconds.	105	The interval between server ticks, in seconds.
42		106
…		…
50	=cut	114	=cut
51		115
52	BEGIN {	116	BEGIN {
53	*CORE::GLOBAL::warn = sub {	117	*CORE::GLOBAL::warn = sub {
54	my $msg = join "", @_;	118	my $msg = join "", @_;
		119	utf8::encode $msg;
		120
55	$msg .= "\n"	121	$msg .= "\n"
56	unless $msg =~ /\n$/;	122	unless $msg =~ /\n$/;
57		123
58	print STDERR "cfperl: $msg";
59	LOG llevError, "cfperl: $msg";	124	LOG llevError, "cfperl: $msg";
60	};	125	};
61	}	126	}
62		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';
63	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
64		134
65	# 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
66	# within the Safe compartment.	136	# within the Safe compartment.
67	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	137	for my $pkg (qw(
		138	cf::global cf::attachable
		139	cf::object cf::object::player
		140	cf::client cf::player
		141	cf::arch cf::living
		142	cf::map cf::party cf::region
		143	)) {
68	no strict 'refs';	144	no strict 'refs';
69	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
70	}	146	}
71		147
72	$Event::DIED = sub {	148	$Event::DIED = sub {
…		…
74	};	150	};
75		151
76	my %ext_pkg;	152	my %ext_pkg;
77	my @exts;	153	my @exts;
78	my @hook;	154	my @hook;
79	my %command;
80	my %extcmd;
81		155
82	=head2 UTILITY FUNCTIONS	156	=head2 UTILITY FUNCTIONS
83		157
84	=over 4	158	=over 4
85		159
…		…
107	sub to_json($) {	181	sub to_json($) {
108	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
109	JSON::Syck::Dump $_[0]	183	JSON::Syck::Dump $_[0]
110	}	184	}
111		185
		186	=item cf::sync_job { BLOCK }
		187
		188	The design of crossfire+ requires that the main coro ($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~", $runtime
		274	and return;
		275
		276	1
		277	}
		278
112	=back	279	=back
113		280
		281	=cut
		282
114	#############################################################################	283	#############################################################################
115		284
116	=head2 EVENTS AND OBJECT ATTACHMENTS	285	package cf::path;
		286
		287	sub new {
		288	my ($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+).
117		414
118	=over 4	415	=over 4
119		416
120	=item $object->attach ($attachment, key => $value...)
121
122	=item $object->detach ($attachment)
123
124	Attach/detach a pre-registered attachment to an object.
125
126	=item $player->attach ($attachment, key => $value...)
127
128	=item $player->detach ($attachment)
129
130	Attach/detach a pre-registered attachment to a player.
131
132	=item $map->attach ($attachment, key => $value...)	417	=item $attachable->attach ($attachment, key => $value...)
133		418
134	=item $map->detach ($attachment)	419	=item $attachable->detach ($attachment)
135		420
136	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.
137		423
138	=item $bool = $object->attached ($name)	424	Example, attach a minesweeper attachment to the given object, making it a
		425	10x10 minesweeper game:
139		426
140	=item $bool = $player->attached ($name)	427	$obj->attach (minesweeper => width => 10, height => 10);
141		428
142	=item $bool = $map->attached ($name)	429	=item $bool = $attachable->attached ($name)
143		430
144	Checks wether the named attachment is currently attached to the object.	431	Checks wether the named attachment is currently attached to the object.
145		432
146	=item cf::attach_global ...	433	=item cf::CLASS->attach ...
147		434
148	Attach handlers for global events.	435	=item cf::CLASS->detach ...
149		436
150	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
151	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:
152		471
153	=over 4	472	=over 4
154		473
155	=item prio => $number	474	=item prio => $number
156		475
…		…
158	by another C<prio> setting). Lower priority handlers get executed	477	by another C<prio> setting). Lower priority handlers get executed
159	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
160	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
161	unless you know what you are doing.	480	unless you know what you are doing.
162		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
163	=item on_I<event> => \&cb	488	=item on_I<event> => \&cb
164		489
165	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
166	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
167	handlers are recognised generally depends on the type of object these	492	handlers are recognised generally depends on the type of object these
…		…
176	package and register them. Only handlers for eevents supported by the	501	package and register them. Only handlers for eevents supported by the
177	object/class are recognised.	502	object/class are recognised.
178		503
179	=back	504	=back
180		505
181	=item cf::attach_to_type $object_type, $subtype, ...	506	Example, define an attachment called "sockpuppet" that calls the given
		507	event handler when a monster attacks:
182		508
183	Attach handlers for a specific object type (e.g. TRANSPORT) and	509	cf::object::attachment sockpuppet =>
184	subtype. If C<$subtype> is zero or undef, matches all objects of the given	510	on_skill_attack => sub {
185	type.	511	my ($self, $victim) = @_;
186		512	...
187	=item cf::attach_to_objects ...
188
189	Attach handlers to all objects. Do not use this except for debugging or
190	very rare events, as handlers are (obviously) called for I<all> objects in
191	the game.
192
193	=item cf::attach_to_players ...
194
195	Attach handlers to all players.
196
197	=item cf::attach_to_maps ...
198
199	Attach handlers to all maps.
200
201	=item cf:register_attachment $name, ...
202
203	Register an attachment by name through which objects can refer to this
204	attachment.
205
206	=item cf:register_player_attachment $name, ...
207
208	Register an attachment by name through which players can refer to this
209	attachment.
210
211	=item cf:register_map_attachment $name, ...
212
213	Register an attachment by name through which maps can refer to this
214	attachment.
215
216	=cut
217
218	# the following variables are defined in .xs and must not be re-created
219	our @CB_GLOBAL = (); # registry for all global events
220	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
221	our @CB_PLAYER = ();
222	our @CB_TYPE = (); # registry for type (cf-object class) based events
223	our @CB_MAP = ();
224
225	my %attachment;
226
227	sub _attach_cb($\%$$$) {
228	my ($registry, $undo, $event, $prio, $cb) = @_;
229
230	use sort 'stable';
231
232	$cb = [$prio, $cb];
233
234	@{$registry->[$event]} = sort
235	{ $a->[0] cmp $b->[0] }
236	@{$registry->[$event] || []}, $cb;
237
238	push @{$undo->{cb}}, [$event, $cb];
239	}
240
241	# attach handles attaching event callbacks
242	# the only thing the caller has to do is pass the correct
243	# registry (== where the callback attaches to).
244	sub _attach(\@$@) {
245	my ($registry, $klass, @arg) = @_;
246
247	my $prio = 0;
248
249	my %undo = (
250	registry => $registry,
251	cb => [],
252	);
253
254	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
255
256	while (@arg) {
257	my $type = shift @arg;
258
259	if ($type eq "prio") {
260	$prio = shift @arg;
261
262	} elsif ($type eq "package") {
263	my $pkg = shift @arg;
264
265	while (my ($name, $id) = each %cb_id) {
266	if (my $cb = $pkg->can ($name)) {
267	_attach_cb $registry, %undo, $id, $prio, $cb;
268	}
269	}	513	}
270
271	} elsif (exists $cb_id{$type}) {
272	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
273
274	} elsif (ref $type) {
275	warn "attaching objects not supported, ignoring.\n";
276
277	} else {
278	shift @arg;
279	warn "attach argument '$type' not supported, ignoring.\n";
280	}
281	}
282
283	\%undo
284	}
285
286	sub _attach_attachment {
287	my ($obj, $name, %arg) = @_;
288
289	return if exists $obj->{_attachment}{$name};
290
291	my $res;
292
293	if (my $attach = $attachment{$name}) {
294	my $registry = $obj->registry;
295
296	for (@$attach) {
297	my ($klass, @attach) = @$_;
298	$res = _attach @$registry, $klass, @attach;
299	}
300
301	$obj->{$name} = \%arg;
302	} else {
303	warn "object uses attachment '$name' that is not available, postponing.\n";
304	}
305
306	$obj->{_attachment}{$name} = undef;
307
308	$res->{attachment} = $name;
309	$res
310	}
311
312	*cf::object::attach =
313	*cf::player::attach =
314	*cf::map::attach = sub {
315	my ($obj, $name, %arg) = @_;
316
317	_attach_attachment $obj, $name, %arg;
318	};
319
320	# all those should be optimised
321	*cf::object::detach =
322	*cf::player::detach =
323	*cf::map::detach = sub {
324	my ($obj, $name) = @_;
325
326	delete $obj->{_attachment}{$name};
327	reattach ($obj);
328	};
329
330	*cf::object::attached =
331	*cf::player::attached =
332	*cf::map::attached = sub {
333	my ($obj, $name) = @_;
334
335	exists $obj->{_attachment}{$name}
336	};
337
338	sub attach_global {
339	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
340	}
341
342	sub attach_to_type {
343	my $type = shift;
344	my $subtype = shift;
345
346	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
347	}
348
349	sub attach_to_objects {
350	_attach @CB_OBJECT, KLASS_OBJECT, @_
351	}
352
353	sub attach_to_players {
354	_attach @CB_PLAYER, KLASS_PLAYER, @_
355	}
356
357	sub attach_to_maps {
358	_attach @CB_MAP, KLASS_MAP, @_
359	}
360
361	sub register_attachment {
362	my $name = shift;
363
364	$attachment{$name} = [[KLASS_OBJECT, @_]];
365	}
366
367	sub register_player_attachment {
368	my $name = shift;
369
370	$attachment{$name} = [[KLASS_PLAYER, @_]];
371	}
372
373	sub register_map_attachment {
374	my $name = shift;
375
376	$attachment{$name} = [[KLASS_MAP, @_]];
377	}
378
379	our $override;
380	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
381
382	sub override {
383	$override = 1;
384	@invoke_results = ();
385	}
386
387	sub do_invoke {
388	my $event = shift;
389	my $callbacks = shift;
390
391	@invoke_results = ();
392
393	local $override;
394
395	for (@$callbacks) {
396	eval { &{$_->[1]} };
397
398	if ($@) {
399	warn "$@";
400	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
401	override;
402	}
403
404	return 1 if $override;
405	}
406
407	0	514	}
408	}
409		515
410	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	516	=item $attachable->valid
411
412	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
413
414	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
415
416	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
417
418	Generate a global/object/player/map-specific event with the given arguments.
419
420	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
421	removed in future versions), and there is no public API to access override
422	results (if you must, access C<@cf::invoke_results> directly).
423
424	=back
425
426	#############################################################################
427
428	=head2 METHODS VALID FOR ALL CORE OBJECTS
429
430	=over 4
431
432	=item $object->valid, $player->valid, $map->valid
433		517
434	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
435	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
436	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
437	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
438	exception.	522	exception.
439		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
440	=back	707	=back
441		708
442	=cut	709	=cut
443
444	*cf::object::valid =
445	*cf::player::valid =
446	*cf::map::valid = \&cf::_valid;
447		710
448	#############################################################################	711	#############################################################################
449	# object support	712	# object support
450		713
451	sub instantiate {
452	my ($obj, $data) = @_;
453
454	$data = from_json $data;
455
456	for (@$data) {
457	my ($name, $args) = @$_;
458
459	$obj->attach ($name, %{$args || {} });
460	}
461	}
462
463	# basically do the same as instantiate, without calling instantiate
464	sub reattach {	714	sub reattach {
		715	# basically do the same as instantiate, without calling instantiate
465	my ($obj) = @_;	716	my ($obj) = @_;
		717
466	my $registry = $obj->registry;	718	my $registry = $obj->registry;
467		719
468	@$registry = ();	720	@$registry = ();
469		721
470	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	722	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
471		723
472	for my $name (keys %{ $obj->{_attachment} || {} }) {	724	for my $name (keys %{ $obj->{_attachment} || {} }) {
473	if (my $attach = $attachment{$name}) {	725	if (my $attach = $attachment{$name}) {
474	for (@$attach) {	726	for (@$attach) {
475	my ($klass, @attach) = @$_;	727	my ($klass, @attach) = @$_;
476	_attach @$registry, $klass, @attach;	728	_attach $registry, $klass, @attach;
477	}	729	}
478	} else {	730	} else {
479	warn "object uses attachment '$name' that is not available, postponing.\n";	731	warn "object uses attachment '$name' that is not available, postponing.\n";
480	}	732	}
481	}	733	}
482	}	734	}
483		735
484	sub object_freezer_save {	736	cf::attachable->attach (
485	my ($filename, $rdata, $objs) = @_;
486
487	if (length $$rdata) {
488	warn sprintf "saving %s (%d,%d)\n",
489	$filename, length $$rdata, scalar @$objs;
490
491	if (open my $fh, ">:raw", "$filename~") {
492	chmod SAVE_MODE, $fh;
493	syswrite $fh, $$rdata;
494	close $fh;
495
496	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
497	chmod SAVE_MODE, $fh;
498	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
499	close $fh;
500	rename "$filename.pst~", "$filename.pst";
501	} else {
502	unlink "$filename.pst";
503	}
504
505	rename "$filename~", $filename;
506	} else {
507	warn "FATAL: $filename~: $!\n";
508	}
509	} else {
510	unlink $filename;
511	unlink "$filename.pst";
512	}
513	}
514
515	sub object_thawer_load {
516	my ($filename) = @_;
517
518	local $/;
519
520	my $av;
521
522	#TODO: use sysread etc.
523	if (open my $data, "<:raw:perlio", $filename) {
524	$data = <$data>;
525	if (open my $pst, "<:raw:perlio", "$filename.pst") {
526	$av = eval { (Storable::thaw <$pst>)->{objs} };
527	}
528	return ($data, $av);
529	}
530
531	()
532	}
533
534	attach_to_objects
535	prio => -1000000,	737	prio => -1000000,
		738	on_instantiate => sub {
		739	my ($obj, $data) = @_;
		740
		741	$data = from_json $data;
		742
		743	for (@$data) {
		744	my ($name, $args) = @$_;
		745
		746	$obj->attach ($name, %{$args || {} });
		747	}
		748	},
		749	on_reattach => \&reattach,
536	on_clone => sub {	750	on_clone => sub {
537	my ($src, $dst) = @_;	751	my ($src, $dst) = @_;
538		752
539	@{$dst->registry} = @{$src->registry};	753	@{$dst->registry} = @{$src->registry};
540		754
541	%$dst = %$src;	755	%$dst = %$src;
542		756
543	%{$dst->{_attachment}} = %{$src->{_attachment}}	757	%{$dst->{_attachment}} = %{$src->{_attachment}}
544	if exists $src->{_attachment};	758	if exists $src->{_attachment};
545	},	759	},
546	;	760	);
		761
		762	sub object_freezer_save {
		763	my ($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	}
547		824
548	#############################################################################	825	#############################################################################
549	# old plug-in events	826	# command handling &c
550		827
551	sub inject_event {	828	=item cf::register_command $name => \&callback($ob,$args);
552	my $extension = shift;
553	my $event_code = shift;
554		829
555	my $cb = $hook[$event_code]{$extension}	830	Register a callback for execution when the client sends the user command
556	or return;	831	$name.
557		832
558	&$cb	833	=cut
559	}
560
561	sub inject_global_event {
562	my $event = shift;
563
564	my $cb = $hook[$event]
565	or return;
566
567	List::Util::max map &$_, values %$cb
568	}
569
570	sub inject_command {
571	my ($name, $obj, $params) = @_;
572
573	for my $cmd (@{ $command{$name} }) {
574	$cmd->[1]->($obj, $params);
575	}
576
577	-1
578	}
579		834
580	sub register_command {	835	sub register_command {
581	my ($name, $time, $cb) = @_;	836	my ($name, $cb) = @_;
582		837
583	my $caller = caller;	838	my $caller = caller;
584	#warn "registering command '$name/$time' to '$caller'";	839	#warn "registering command '$name/$time' to '$caller'";
585		840
586	push @{ $command{$name} }, [$time, $cb, $caller];	841	push @{ $COMMAND{$name} }, [$caller, $cb];
587	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
588	}	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
589		852
590	sub register_extcmd {	853	sub register_extcmd {
591	my ($name, $cb) = @_;	854	my ($name, $cb) = @_;
592		855
593	my $caller = caller;	856	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";	857	#warn "registering extcmd '$name' to '$caller'";
595		858
596	$extcmd{$name} = [$cb, $caller];	859	$EXTCMD{$name} = [$cb, $caller];
597	}	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	);
598		893
599	sub register {	894	sub register {
600	my ($base, $pkg) = @_;	895	my ($base, $pkg) = @_;
601		896
602	#TODO	897	#TODO
…		…
621	. "#line 1 \"$path\"\n{\n"	916	. "#line 1 \"$path\"\n{\n"
622	. (do { local $/; <$fh> })	917	. (do { local $/; <$fh> })
623	. "\n};\n1";	918	. "\n};\n1";
624		919
625	eval $source	920	eval $source
626	or die "$path: $@";	921	or die $@ ? "$path: $@\n"
		922	: "extension disabled.\n";
627		923
628	push @exts, $pkg;	924	push @exts, $pkg;
629	$ext_pkg{$base} = $pkg;	925	$ext_pkg{$base} = $pkg;
630		926
631	# no strict 'refs';	927	# no strict 'refs';
…		…
644	# for my $idx (0 .. $#PLUGIN_EVENT) {	940	# for my $idx (0 .. $#PLUGIN_EVENT) {
645	# delete $hook[$idx]{$pkg};	941	# delete $hook[$idx]{$pkg};
646	# }	942	# }
647		943
648	# remove commands	944	# remove commands
649	for my $name (keys %command) {	945	for my $name (keys %COMMAND) {
650	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
651		947
652	if (@cb) {	948	if (@cb) {
653	$command{$name} = \@cb;	949	$COMMAND{$name} = \@cb;
654	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
655	} else {	950	} else {
656	delete $command{$name};
657	delete $COMMAND{"$name\000"};	951	delete $COMMAND{$name};
658	}	952	}
659	}	953	}
660		954
661	# remove extcmds	955	# remove extcmds
662	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
663	delete $extcmd{$name};	957	delete $EXTCMD{$name};
664	}	958	}
665		959
666	if (my $cb = $pkg->can ("unload")) {	960	if (my $cb = $pkg->can ("unload")) {
667	eval {	961	eval {
668	$cb->($pkg);	962	$cb->($pkg);
…		…
672		966
673	Symbol::delete_package $pkg;	967	Symbol::delete_package $pkg;
674	}	968	}
675		969
676	sub load_extensions {	970	sub load_extensions {
677	my $LIBDIR = maps_directory "perl";
678
679	for my $ext (<$LIBDIR/*.ext>) {	971	for my $ext (<$LIBDIR/*.ext>) {
680	next unless -r $ext;	972	next unless -r $ext;
681	eval {	973	eval {
682	load_extension $ext;	974	load_extension $ext;
683	1	975	1
684	} or warn "$ext not loaded: $@";	976	} or warn "$ext not loaded: $@";
685	}	977	}
686	}	978	}
687		979
688	#############################################################################	980	#############################################################################
689	# extcmd framework, basically convert ext <msg>
690	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
691
692	attach_to_players
693	on_extcmd => sub {
694	my ($pl, $buf) = @_;
695
696	my $msg = eval { from_json $buf };
697
698	if (ref $msg) {
699	if (my $cb = $extcmd{$msg->{msgtype}}) {
700	if (my %reply = $cb->[0]->($pl, $msg)) {
701	$pl->ext_reply ($msg->{msgid}, %reply);
702	}
703	}
704	} else {
705	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
706	}
707
708	cf::override;
709	},
710	;
711
712	#############################################################################
713	# load/save/clean perl data associated with a map	981	# load/save/clean perl data associated with a map
714		982
715	*cf::mapsupport::on_clean = sub {	983	*cf::mapsupport::on_clean = sub {
716	my ($map) = @_;	984	my ($map) = @_;
717		985
…		…
719	defined $path or return;	987	defined $path or return;
720		988
721	unlink "$path.pst";	989	unlink "$path.pst";
722	};	990	};
723		991
724	attach_to_maps prio => -10000, package => cf::mapsupport::;	992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
725		993
726	#############################################################################	994	#############################################################################
727	# load/save perl data associated with player->ob objects	995	# load/save perl data associated with player->ob objects
728		996
729	sub all_objects(@) {	997	sub all_objects(@) {
730	@_, map all_objects ($_->inv), @_	998	@_, map all_objects ($_->inv), @_
731	}	999	}
732		1000
733	# TODO: compatibility cruft, remove when no longer needed	1001	# TODO: compatibility cruft, remove when no longer needed
734	attach_to_players	1002	cf::player->attach (
735	on_load => sub {	1003	on_load => sub {
736	my ($pl, $path) = @_;	1004	my ($pl, $path) = @_;
737		1005
738	for my $o (all_objects $pl->ob) {	1006	for my $o (all_objects $pl->ob) {
739	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
741		1009
742	%$o = %{ Storable::thaw pack "H*", $value };	1010	%$o = %{ Storable::thaw pack "H*", $value };
743	}	1011	}
744	}	1012	}
745	},	1013	},
746	;	1014	);
747		1015
748	#############################################################################	1016	#############################################################################
749		1017
750	=head2 CORE EXTENSIONS	1018	=head2 CORE EXTENSIONS
751		1019
752	Functions and methods that extend core crossfire objects.	1020	Functions and methods that extend core crossfire objects.
		1021
		1022	=head3 cf::player
753		1023
754	=over 4	1024	=over 4
755		1025
756	=item cf::player::exists $login	1026	=item cf::player::exists $login
757		1027
…		…
762	sub cf::player::exists($) {	1032	sub cf::player::exists($) {
763	cf::player::find $_[0]	1033	cf::player::find $_[0]
764	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;
765	}	1035	}
766		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
767	=item $player->reply ($npc, $msg[, $flags])	1348	=item $player_object->reply ($npc, $msg[, $flags])
768		1349
769	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1350	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
770	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
771	dialogue with the given NPC character.	1352	dialogue with the given NPC character.
772		1353
773	=cut	1354	=cut
774		1355
775	# rough implementation of a future "reply" method that works	1356	# rough implementation of a future "reply" method that works
776	# with dialog boxes.	1357	# with dialog boxes.
		1358	#TODO: the first argument must go, split into a $npc->reply_to ( method
777	sub cf::object::player::reply($$$;$) {	1359	sub cf::object::player::reply($$$;$) {
778	my ($self, $npc, $msg, $flags) = @_;	1360	my ($self, $npc, $msg, $flags) = @_;
779		1361
780	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1362	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
781		1363
…		…
785	$msg = $npc->name . " says: $msg" if $npc;	1367	$msg = $npc->name . " says: $msg" if $npc;
786	$self->message ($msg, $flags);	1368	$self->message ($msg, $flags);
787	}	1369	}
788	}	1370	}
789		1371
790	=item $player->ext_reply ($msgid, $msgtype, %msg)	1372	=item $player_object->may ("access")
791		1373
792	Sends an ext reply to the player.	1374	Returns wether the given player is authorized to access resource "access"
		1375	(e.g. "command_wizcast").
793		1376
794	=cut	1377	=cut
795		1378
796	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	sub cf::object::player::enter_link {
		1389	my ($self) = @_;
		1390
		1391	return if $self->map == $LINK_MAP;
		1392
		1393	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1394	if $self->map;
		1395
		1396	$self->enter_map ($LINK_MAP, 20, 20);
		1397	$self->deactivate_recursive;
		1398	}
		1399
		1400	sub cf::object::player::leave_link {
		1401	my ($self, $map, $x, $y) = @_;
		1402
		1403	my $link_pos = delete $self->{_link_pos};
		1404
		1405	unless ($map) {
		1406	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1407
		1408	# restore original map position
		1409	($map, $x, $y) = @{ $link_pos || [] };
		1410	$map = cf::map::find_map $map;
		1411
		1412	unless ($map) {
		1413	($map, $x, $y) = @$EMERGENCY_POSITION;
		1414	$map = cf::map::find_map $map
		1415	or die "FATAL: cannot load emergency map\n";
		1416	}
		1417	}
		1418
		1419	($x, $y) = (-1, -1)
		1420	unless (defined $x) && (defined $y);
		1421
		1422	# use -1 or undef as default coordinates, not 0, 0
		1423	($x, $y) = ($map->enter_x, $map->enter_y)
		1424	if $x <=0 && $y <= 0;
		1425
		1426	$map->load;
		1427
		1428	$self->activate_recursive;
		1429	$self->enter_map ($map, $x, $y);
		1430	}
		1431
		1432	=item $player_object->goto_map ($map, $x, $y)
		1433
		1434	=cut
		1435
		1436	sub cf::object::player::goto_map {
		1437	my ($self, $path, $x, $y) = @_;
		1438
		1439	$self->enter_link;
		1440
		1441	(Coro::async {
		1442	$path = new cf::path $path;
		1443
		1444	my $map = cf::map::find_map $path->as_string;
		1445	$map = $map->customise_for ($self) if $map;
		1446
		1447	warn "entering ", $map->path, " at ($x, $y)\n"
		1448	if $map;
		1449
		1450	$self->leave_link ($map, $x, $y);
		1451	})->prio (1);
		1452	}
		1453
		1454	=item $player_object->enter_exit ($exit_object)
		1455
		1456	=cut
		1457
		1458	sub parse_random_map_params {
		1459	my ($spec) = @_;
		1460
		1461	my $rmp = { # defaults
		1462	xsize => 10,
		1463	ysize => 10,
		1464	};
		1465
		1466	for (split /\n/, $spec) {
		1467	my ($k, $v) = split /\s+/, $_, 2;
		1468
		1469	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1470	}
		1471
		1472	$rmp
		1473	}
		1474
		1475	sub prepare_random_map {
		1476	my ($exit) = @_;
		1477
		1478	# all this does is basically replace the /! path by
		1479	# a new random map path (?random/...) with a seed
		1480	# that depends on the exit object
		1481
		1482	my $rmp = parse_random_map_params $exit->msg;
		1483
		1484	if ($exit->map) {
		1485	$rmp->{region} = $exit->map->region_name;
		1486	$rmp->{origin_map} = $exit->map->path;
		1487	$rmp->{origin_x} = $exit->x;
		1488	$rmp->{origin_y} = $exit->y;
		1489	}
		1490
		1491	$rmp->{random_seed} ||= $exit->random_seed;
		1492
		1493	my $data = cf::to_json $rmp;
		1494	my $md5 = Digest::MD5::md5_hex $data;
		1495
		1496	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1497	aio_write $fh, 0, (length $data), $data, 0;
		1498
		1499	$exit->slaying ("?random/$md5");
		1500	$exit->msg (undef);
		1501	}
		1502	}
		1503
		1504	sub cf::object::player::enter_exit {
797	my ($self, $id, %msg) = @_;	1505	my ($self, $exit) = @_;
798		1506
799	$msg{msgid} = $id;	1507	return unless $self->type == cf::PLAYER;
800		1508
801	$self->send ("ext " . to_json \%msg);	1509	$self->enter_link;
		1510
		1511	(Coro::async {
		1512	unless (eval {
		1513
		1514	prepare_random_map $exit
		1515	if $exit->slaying eq "/!";
		1516
		1517	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1518	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1519
		1520	1;
		1521	}) {
		1522	$self->message ("Something went wrong deep within the crossfire server. "
		1523	. "I'll try to bring you back to the map you were before. "
		1524	. "Please report this to the dungeon master",
		1525	cf::NDI_UNIQUE | cf::NDI_RED);
		1526
		1527	warn "ERROR in enter_exit: $@";
		1528	$self->leave_link;
		1529	}
		1530	})->prio (1);
802	}	1531	}
		1532
		1533	=head3 cf::client
		1534
		1535	=over 4
		1536
		1537	=item $client->send_drawinfo ($text, $flags)
		1538
		1539	Sends a drawinfo packet to the client. Circumvents output buffering so
		1540	should not be used under normal circumstances.
		1541
		1542	=cut
		1543
		1544	sub cf::client::send_drawinfo {
		1545	my ($self, $text, $flags) = @_;
		1546
		1547	utf8::encode $text;
		1548	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1549	}
		1550
		1551
		1552	=item $success = $client->query ($flags, "text", \&cb)
		1553
		1554	Queues a query to the client, calling the given callback with
		1555	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1556	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1557
		1558	Queries can fail, so check the return code. Or don't, as queries will become
		1559	reliable at some point in the future.
		1560
		1561	=cut
		1562
		1563	sub cf::client::query {
		1564	my ($self, $flags, $text, $cb) = @_;
		1565
		1566	return unless $self->state == ST_PLAYING
		1567	|| $self->state == ST_SETUP
		1568	|| $self->state == ST_CUSTOM;
		1569
		1570	$self->state (ST_CUSTOM);
		1571
		1572	utf8::encode $text;
		1573	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1574
		1575	$self->send_packet ($self->{query_queue}[0][0])
		1576	if @{ $self->{query_queue} } == 1;
		1577	}
		1578
		1579	cf::client->attach (
		1580	on_reply => sub {
		1581	my ($ns, $msg) = @_;
		1582
		1583	# this weird shuffling is so that direct followup queries
		1584	# get handled first
		1585	my $queue = delete $ns->{query_queue};
		1586
		1587	(shift @$queue)->[1]->($msg);
		1588
		1589	push @{ $ns->{query_queue} }, @$queue;
		1590
		1591	if (@{ $ns->{query_queue} } == @$queue) {
		1592	if (@$queue) {
		1593	$ns->send_packet ($ns->{query_queue}[0][0]);
		1594	} else {
		1595	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1596	}
		1597	}
		1598	},
		1599	);
		1600
		1601	=item $client->coro (\&cb)
		1602
		1603	Create a new coroutine, running the specified callback. The coroutine will
		1604	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1605	or loss of connection).
		1606
		1607	=cut
		1608
		1609	sub cf::client::coro {
		1610	my ($self, $cb) = @_;
		1611
		1612	my $coro; $coro = async {
		1613	eval {
		1614	$cb->();
		1615	};
		1616	warn $@ if $@;
		1617	};
		1618
		1619	$coro->on_destroy (sub {
		1620	delete $self->{_coro}{$coro+0};
		1621	});
		1622
		1623	$self->{_coro}{$coro+0} = $coro;
		1624
		1625	$coro
		1626	}
		1627
		1628	cf::client->attach (
		1629	on_destroy => sub {
		1630	my ($ns) = @_;
		1631
		1632	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1633	},
		1634	);
803		1635
804	=back	1636	=back
805		1637
806	=cut
807
808	#############################################################################
809		1638
810	=head2 SAFE SCRIPTING	1639	=head2 SAFE SCRIPTING
811		1640
812	Functions that provide a safe environment to compile and execute	1641	Functions that provide a safe environment to compile and execute
813	snippets of perl code without them endangering the safety of the server	1642	snippets of perl code without them endangering the safety of the server
814	itself. Looping constructs, I/O operators and other built-in functionality	1643	itself. Looping constructs, I/O operators and other built-in functionality
815	is not available in the safe scripting environment, and the number of	1644	is not available in the safe scripting environment, and the number of
816	functions and methods that cna be called is greatly reduced.	1645	functions and methods that can be called is greatly reduced.
817		1646
818	=cut	1647	=cut
819		1648
820	our $safe = new Safe "safe";	1649	our $safe = new Safe "safe";
821	our $safe_hole = new Safe::Hole;	1650	our $safe_hole = new Safe::Hole;
…		…
828		1657
829	=pod	1658	=pod
830		1659
831	The following fucntions and emthods are available within a safe environment:	1660	The following fucntions and emthods are available within a safe environment:
832		1661
833	cf::object contr pay_amount pay_player	1662	cf::object contr pay_amount pay_player map
834	cf::object::player player	1663	cf::object::player player
835	cf::player peaceful	1664	cf::player peaceful
		1665	cf::map trigger
836		1666
837	=cut	1667	=cut
838		1668
839	for (	1669	for (
840	["cf::object" => qw(contr pay_amount pay_player)],	1670	["cf::object" => qw(contr pay_amount pay_player map)],
841	["cf::object::player" => qw(player)],	1671	["cf::object::player" => qw(player)],
842	["cf::player" => qw(peaceful)],	1672	["cf::player" => qw(peaceful)],
		1673	["cf::map" => qw(trigger)],
843	) {	1674	) {
844	no strict 'refs';	1675	no strict 'refs';
845	my ($pkg, @funs) = @$_;	1676	my ($pkg, @funs) = @$_;
846	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1677	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
847	for @funs;	1678	for @funs;
…		…
912	*{"safe::$fun"} = $safe_hole->wrap ($cb);	1743	*{"safe::$fun"} = $safe_hole->wrap ($cb);
913	}	1744	}
914		1745
915	=back	1746	=back
916		1747
		1748	=cut
		1749
917	#############################################################################	1750	#############################################################################
918		1751
919	=head2 EXTENSION DATABASE SUPPORT	1752	=head2 EXTENSION DATABASE SUPPORT
920		1753
921	Crossfire maintains a very simple database for extension use. It can	1754	Crossfire maintains a very simple database for extension use. It can
…		…
955		1788
956	Immediately write the database to disk I<if it is dirty>.	1789	Immediately write the database to disk I<if it is dirty>.
957		1790
958	=cut	1791	=cut
959		1792
		1793	our $DB;
		1794
960	{	1795	{
961	my $db;
962	my $path = cf::localdir . "/database.pst";	1796	my $path = cf::localdir . "/database.pst";
963		1797
964	sub db_load() {	1798	sub db_load() {
965	warn "loading database $path\n";#d# remove later	1799	warn "loading database $path\n";#d# remove later
966	$db = stat $path ? Storable::retrieve $path : { };	1800	$DB = stat $path ? Storable::retrieve $path : { };
967	}	1801	}
968		1802
969	my $pid;	1803	my $pid;
970		1804
971	sub db_save() {	1805	sub db_save() {
972	warn "saving database $path\n";#d# remove later	1806	warn "saving database $path\n";#d# remove later
973	waitpid $pid, 0 if $pid;	1807	waitpid $pid, 0 if $pid;
974	if (0 == ($pid = fork)) {	1808	if (0 == ($pid = fork)) {
975	$db->{_meta}{version} = 1;	1809	$DB->{_meta}{version} = 1;
976	Storable::nstore $db, "$path~";	1810	Storable::nstore $DB, "$path~";
977	rename "$path~", $path;	1811	rename "$path~", $path;
978	cf::_exit 0 if defined $pid;	1812	cf::_exit 0 if defined $pid;
979	}	1813	}
980	}	1814	}
981		1815
…		…
984	sub db_sync() {	1818	sub db_sync() {
985	db_save if $dirty;	1819	db_save if $dirty;
986	undef $dirty;	1820	undef $dirty;
987	}	1821	}
988		1822
989	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1823	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
990	db_sync;	1824	db_sync;
991	});	1825	});
992		1826
993	sub db_dirty() {	1827	sub db_dirty() {
994	$dirty = 1;	1828	$dirty = 1;
995	$idle->start;	1829	$idle->start;
996	}	1830	}
997		1831
998	sub db_get($;$) {	1832	sub db_get($;$) {
999	@_ >= 2	1833	@_ >= 2
1000	? $db->{$_[0]}{$_[1]}	1834	? $DB->{$_[0]}{$_[1]}
1001	: ($db->{$_[0]} ||= { })	1835	: ($DB->{$_[0]} ||= { })
1002	}	1836	}
1003		1837
1004	sub db_put($$;$) {	1838	sub db_put($$;$) {
1005	if (@_ >= 3) {	1839	if (@_ >= 3) {
1006	$db->{$_[0]}{$_[1]} = $_[2];	1840	$DB->{$_[0]}{$_[1]} = $_[2];
1007	} else {	1841	} else {
1008	$db->{$_[0]} = $_[1];	1842	$DB->{$_[0]} = $_[1];
1009	}	1843	}
1010	db_dirty;	1844	db_dirty;
1011	}	1845	}
1012		1846
1013	attach_global	1847	cf::global->attach (
1014	prio => 10000,	1848	prio => 10000,
1015	on_cleanup => sub {	1849	on_cleanup => sub {
1016	db_sync;	1850	db_sync;
1017	},	1851	},
1018	;	1852	);
1019	}	1853	}
1020		1854
1021	#############################################################################	1855	#############################################################################
1022	# the server's main()	1856	# the server's main()
1023		1857
		1858	sub cfg_load {
		1859	open my $fh, "<:utf8", cf::confdir . "/config"
		1860	or return;
		1861
		1862	local $/;
		1863	*CFG = YAML::Syck::Load <$fh>;
		1864	}
		1865
1024	sub main {	1866	sub main {
		1867	# we must not ever block the main coroutine
		1868	local $Coro::idle = sub {
		1869	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1870	(Coro::unblock_sub {
		1871	Event::one_event;
		1872	})->();
		1873	};
		1874
		1875	cfg_load;
1025	db_load;	1876	db_load;
1026	load_extensions;	1877	load_extensions;
1027	Event::loop;	1878	Event::loop;
1028	}	1879	}
1029		1880
1030	#############################################################################	1881	#############################################################################
1031	# initialisation	1882	# initialisation
1032		1883
1033	sub _perl_reload(&) {	1884	sub reload() {
1034	my ($msg) = @_;	1885	# can/must only be called in main
		1886	if ($Coro::current != $Coro::main) {
		1887	warn "can only reload from main coroutine\n";
		1888	return;
		1889	}
1035		1890
1036	$msg->("reloading...");	1891	warn "reloading...";
		1892
		1893	local $FREEZE = 1;
		1894	cf::emergency_save;
1037		1895
1038	eval {	1896	eval {
		1897	# if anything goes wrong in here, we should simply crash as we already saved
		1898
1039	# cancel all watchers	1899	# cancel all watchers
1040	$_->cancel for Event::all_watchers;	1900	for (Event::all_watchers) {
		1901	$_->cancel if $_->data & WF_AUTOCANCEL;
		1902	}
		1903
		1904	# cancel all extension coros
		1905	$_->cancel for values %EXT_CORO;
		1906	%EXT_CORO = ();
1041		1907
1042	# unload all extensions	1908	# unload all extensions
1043	for (@exts) {	1909	for (@exts) {
1044	$msg->("unloading <$_>");	1910	warn "unloading <$_>";
1045	unload_extension $_;	1911	unload_extension $_;
1046	}	1912	}
1047		1913
1048	# unload all modules loaded from $LIBDIR	1914	# unload all modules loaded from $LIBDIR
1049	while (my ($k, $v) = each %INC) {	1915	while (my ($k, $v) = each %INC) {
1050	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1916	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1051		1917
1052	$msg->("removing <$k>");	1918	warn "removing <$k>";
1053	delete $INC{$k};	1919	delete $INC{$k};
1054		1920
1055	$k =~ s/\.pm$//;	1921	$k =~ s/\.pm$//;
1056	$k =~ s/\//::/g;	1922	$k =~ s/\//::/g;
1057		1923
…		…
1062	Symbol::delete_package $k;	1928	Symbol::delete_package $k;
1063	}	1929	}
1064		1930
1065	# sync database to disk	1931	# sync database to disk
1066	cf::db_sync;	1932	cf::db_sync;
		1933	IO::AIO::flush;
1067		1934
1068	# get rid of safe::, as good as possible	1935	# get rid of safe::, as good as possible
1069	Symbol::delete_package "safe::$_"	1936	Symbol::delete_package "safe::$_"
1070	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1937	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1071		1938
1072	# remove register_script_function callbacks	1939	# remove register_script_function callbacks
1073	# TODO	1940	# TODO
1074		1941
1075	# unload cf.pm "a bit"	1942	# unload cf.pm "a bit"
…		…
1078	# don't, removes xs symbols, too,	1945	# don't, removes xs symbols, too,
1079	# and global variables created in xs	1946	# and global variables created in xs
1080	#Symbol::delete_package __PACKAGE__;	1947	#Symbol::delete_package __PACKAGE__;
1081		1948
1082	# reload cf.pm	1949	# reload cf.pm
1083	$msg->("reloading cf.pm");	1950	warn "reloading cf.pm";
1084	require cf;	1951	require cf;
		1952	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1085		1953
1086	# load database again	1954	# load config and database again
		1955	cf::cfg_load;
1087	cf::db_load;	1956	cf::db_load;
1088		1957
1089	# load extensions	1958	# load extensions
1090	$msg->("load extensions");	1959	warn "load extensions";
1091	cf::load_extensions;	1960	cf::load_extensions;
1092		1961
1093	# reattach attachments to objects	1962	# reattach attachments to objects
1094	$msg->("reattach");	1963	warn "reattach";
1095	_global_reattach;	1964	_global_reattach;
1096	};	1965	};
1097	$msg->($@) if $@;
1098		1966
1099	$msg->("reloaded");	1967	if ($@) {
		1968	warn $@;
		1969	warn "error while reloading, exiting.";
		1970	exit 1;
		1971	}
		1972
		1973	warn "reloaded successfully";
1100	};	1974	};
1101		1975
1102	sub perl_reload() {	1976	#############################################################################
1103	_perl_reload {
1104	warn $_[0];
1105	print "$_[0]\n";
1106	};
1107	}
1108		1977
		1978	unless ($LINK_MAP) {
		1979	$LINK_MAP = cf::map::new;
		1980
		1981	$LINK_MAP->width (41);
		1982	$LINK_MAP->height (41);
		1983	$LINK_MAP->alloc;
		1984	$LINK_MAP->path ("{link}");
		1985	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		1986	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		1987
		1988	# dirty hack because... archetypes are not yet loaded
		1989	Event->timer (
		1990	after => 2,
		1991	cb => sub {
		1992	$_[0]->w->cancel;
		1993
		1994	# provide some exits "home"
		1995	my $exit = cf::object::new "exit";
		1996
		1997	$exit->slaying ($EMERGENCY_POSITION->[0]);
		1998	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		1999	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2000
		2001	$LINK_MAP->insert ($exit->clone, 19, 19);
		2002	$LINK_MAP->insert ($exit->clone, 19, 20);
		2003	$LINK_MAP->insert ($exit->clone, 19, 21);
		2004	$LINK_MAP->insert ($exit->clone, 20, 19);
		2005	$LINK_MAP->insert ($exit->clone, 20, 21);
		2006	$LINK_MAP->insert ($exit->clone, 21, 19);
		2007	$LINK_MAP->insert ($exit->clone, 21, 20);
		2008	$LINK_MAP->insert ($exit->clone, 21, 21);
		2009
		2010	$exit->destroy;
		2011	});
		2012
		2013	$LINK_MAP->{deny_save} = 1;
		2014	$LINK_MAP->{deny_reset} = 1;
		2015
		2016	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2017	}
		2018
		2019	register "<global>", __PACKAGE__;
		2020
1109	register_command "perl-reload", 0, sub {	2021	register_command "reload" => sub {
1110	my ($who, $arg) = @_;	2022	my ($who, $arg) = @_;
1111		2023
1112	if ($who->flag (FLAG_WIZ)) {	2024	if ($who->flag (FLAG_WIZ)) {
1113	_perl_reload {	2025	$who->message ("start of reload.");
1114	warn $_[0];	2026	reload;
1115	$who->message ($_[0]);	2027	$who->message ("end of reload.");
1116	};
1117	}	2028	}
1118	};	2029	};
1119		2030
1120	register "<global>", __PACKAGE__;
1121
1122	unshift @INC, $LIBDIR;	2031	unshift @INC, $LIBDIR;
1123		2032
1124	$TICK_WATCHER = Event->timer (	2033	$TICK_WATCHER = Event->timer (
		2034	reentrant => 0,
1125	prio => 1,	2035	prio => 0,
1126	at => $NEXT_TICK || 1,	2036	at => $NEXT_TICK || $TICK,
		2037	data => WF_AUTOCANCEL,
1127	cb => sub {	2038	cb => sub {
		2039	unless ($FREEZE) {
1128	cf::server_tick; # one server iteration	2040	cf::server_tick; # one server iteration
		2041	$RUNTIME += $TICK;
		2042	}
1129		2043
1130	my $NOW = Event::time;
1131	$NEXT_TICK += $TICK;	2044	$NEXT_TICK += $TICK;
1132		2045
1133	# if we are delayed by four ticks, skip them all	2046	# if we are delayed by four ticks or more, skip them all
1134	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2047	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1135		2048
1136	$TICK_WATCHER->at ($NEXT_TICK);	2049	$TICK_WATCHER->at ($NEXT_TICK);
1137	$TICK_WATCHER->start;	2050	$TICK_WATCHER->start;
1138	},	2051	},
1139	);	2052	);
1140		2053
		2054	IO::AIO::max_poll_time $TICK * 0.2;
		2055
		2056	Event->io (
		2057	fd => IO::AIO::poll_fileno,
		2058	poll => 'r',
		2059	prio => 5,
		2060	data => WF_AUTOCANCEL,
		2061	cb => \&IO::AIO::poll_cb,
		2062	);
		2063
		2064	Event->timer (
		2065	data => WF_AUTOCANCEL,
		2066	after => 0,
		2067	interval => 10,
		2068	cb => sub {
		2069	(Coro::unblock_sub {
		2070	write_runtime
		2071	or warn "ERROR: unable to write runtime file: $!";
		2072	})->();
		2073	},
		2074	);
		2075
1141	1	2076	1
1142		2077

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