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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.71 by root, Sun Oct 1 10:59:30 2006 UTC vs.
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Digest::MD5;
		21	use Fcntl;
		22	use IO::AIO 2.31 ();
		23	use YAML::Syck ();
10	use Time::HiRes;	24	use Time::HiRes;
11	use Event;	25
12	$Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
13		27
14	use strict;	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		29	$YAML::Syck::ImplicitUnicode = 1;
15		30
16	_init_vars;	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
17		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		34
18	our %COMMAND = ();	35	our %COMMAND = ();
		36	our %COMMAND_TIME = ();
		37	our %EXTCMD = ();
		38
19	our @EVENT;	39	our @EVENT;
20	our $LIBDIR = maps_directory "perl";	40	our $LIBDIR = datadir . "/ext";
21		41
22	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
23	our $TICK_WATCHER;	43	our $TICK_WATCHER;
24	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
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	my $busy = 1;
		203	my @res;
		204
		205	my $coro = Coro::async {
		206	@res = eval { $job->() };
		207	warn $@ if $@;
		208	undef $busy;
		209	};
		210
		211	if ($Coro::current == $Coro::main) {
		212	# TODO: use suspend/resume instead
		213	local $FREEZE = 1;
		214	$coro->prio (Coro::PRIO_MAX);
		215	while ($busy) {
		216	Coro::cede_notself;
		217	Event::one_event unless Coro::nready;
		218	}
		219	} else {
		220	$coro->join;
		221	}
		222
		223	wantarray ? @res : $res[0]
		224	}
		225
		226	=item $coro = cf::coro { BLOCK }
		227
		228	Creates and returns a new coro. This coro is automcatially being canceled
		229	when the extension calling this is being unloaded.
		230
		231	=cut
		232
		233	sub coro(&) {
		234	my $cb = shift;
		235
		236	my $coro; $coro = async {
		237	eval {
		238	$cb->();
		239	};
		240	warn $@ if $@;
		241	};
		242
		243	$coro->on_destroy (sub {
		244	delete $EXT_CORO{$coro+0};
		245	});
		246	$EXT_CORO{$coro+0} = $coro;
		247
		248	$coro
		249	}
		250
		251	sub write_runtime {
		252	my $runtime = cf::localdir . "/runtime";
		253
		254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		255	or return;
		256
		257	my $value = $cf::RUNTIME;
		258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		259	and return;
		260
		261	aio_fsync $fh
		262	and return;
		263
		264	close $fh
		265	or return;
		266
		267	aio_rename "$runtime~", $runtime
		268	and return;
		269
		270	1
		271	}
		272
112	=back	273	=back
113		274
114	=cut	275	=cut
115		276
116	#############################################################################	277	#############################################################################
117		278
118	=head2 EVENTS AND OBJECT ATTACHMENTS	279	package cf::path;
		280
		281	sub new {
		282	my ($class, $path, $base) = @_;
		283
		284	$path = $path->as_string if ref $path;
		285
		286	my $self = bless { }, $class;
		287
		288	if ($path =~ s{^\?random/}{}) {
		289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		290	$self->{random} = cf::from_json $data;
		291	} else {
		292	if ($path =~ s{^~([^/]+)?}{}) {
		293	$self->{user_rel} = 1;
		294
		295	if (defined $1) {
		296	$self->{user} = $1;
		297	} elsif ($base =~ m{^~([^/]+)/}) {
		298	$self->{user} = $1;
		299	} else {
		300	warn "cannot resolve user-relative path without user <$path,$base>\n";
		301	}
		302	} elsif ($path =~ /^\//) {
		303	# already absolute
		304	} else {
		305	$base =~ s{[^/]+/?$}{};
		306	return $class->new ("$base/$path");
		307	}
		308
		309	for ($path) {
		310	redo if s{/\.?/}{/};
		311	redo if s{/[^/]+/\.\./}{/};
		312	}
		313	}
		314
		315	$self->{path} = $path;
		316
		317	$self
		318	}
		319
		320	# the name / primary key / in-game path
		321	sub as_string {
		322	my ($self) = @_;
		323
		324	$self->{user_rel} ? "~$self->{user}$self->{path}"
		325	: $self->{random} ? "?random/$self->{path}"
		326	: $self->{path}
		327	}
		328
		329	# the displayed name, this is a one way mapping
		330	sub visible_name {
		331	my ($self) = @_;
		332
		333	# if (my $rmp = $self->{random}) {
		334	# # todo: be more intelligent about this
		335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		336	# } else {
		337	$self->as_string
		338	# }
		339	}
		340
		341	# escape the /'s in the path
		342	sub _escaped_path {
		343	# ∕ is U+2215
		344	(my $path = $_[0]{path}) =~ s/\//∕/g;
		345	$path
		346	}
		347
		348	# the original (read-only) location
		349	sub load_path {
		350	my ($self) = @_;
		351
		352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		353	}
		354
		355	# the temporary/swap location
		356	sub save_path {
		357	my ($self) = @_;
		358
		359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		362	}
		363
		364	# the unique path, might be eq to save_path
		365	sub uniq_path {
		366	my ($self) = @_;
		367
		368	$self->{user_rel} || $self->{random}
		369	? undef
		370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		371	}
		372
		373	# return random map parameters, or undef
		374	sub random_map_params {
		375	my ($self) = @_;
		376
		377	$self->{random}
		378	}
		379
		380	# this is somewhat ugly, but style maps do need special treatment
		381	sub is_style_map {
		382	$_[0]{path} =~ m{^/styles/}
		383	}
		384
		385	package cf;
		386
		387	#############################################################################
		388
		389	=head2 ATTACHABLE OBJECTS
		390
		391	Many objects in crossfire are so-called attachable objects. That means you can
		392	attach callbacks/event handlers (a collection of which is called an "attachment")
		393	to it. All such attachable objects support the following methods.
		394
		395	In the following description, CLASS can be any of C<global>, C<object>
		396	C<player>, C<client> or C<map> (i.e. the attachable objects in
		397	crossfire+).
119		398
120	=over 4	399	=over 4
121		400
122	=item $object->attach ($attachment, key => $value...)
123
124	=item $object->detach ($attachment)
125
126	Attach/detach a pre-registered attachment to an object.
127
128	=item $player->attach ($attachment, key => $value...)
129
130	=item $player->detach ($attachment)
131
132	Attach/detach a pre-registered attachment to a player.
133
134	=item $map->attach ($attachment, key => $value...)	401	=item $attachable->attach ($attachment, key => $value...)
135		402
136	=item $map->detach ($attachment)	403	=item $attachable->detach ($attachment)
137		404
138	Attach/detach a pre-registered attachment to a map.	405	Attach/detach a pre-registered attachment to a specific object and give it
		406	the specified key/value pairs as arguments.
139		407
140	=item $bool = $object->attached ($name)	408	Example, attach a minesweeper attachment to the given object, making it a
		409	10x10 minesweeper game:
141		410
142	=item $bool = $player->attached ($name)	411	$obj->attach (minesweeper => width => 10, height => 10);
143		412
144	=item $bool = $map->attached ($name)	413	=item $bool = $attachable->attached ($name)
145		414
146	Checks wether the named attachment is currently attached to the object.	415	Checks wether the named attachment is currently attached to the object.
147		416
148	=item cf::attach_global ...	417	=item cf::CLASS->attach ...
149		418
150	Attach handlers for global events.	419	=item cf::CLASS->detach ...
151		420
152	This and all following C<attach_*>-functions expect any number of the	421	Define an anonymous attachment and attach it to all objects of the given
153	following handler/hook descriptions:	422	CLASS. See the next function for an explanation of its arguments.
		423
		424	You can attach to global events by using the C<cf::global> class.
		425
		426	Example, log all player logins:
		427
		428	cf::player->attach (
		429	on_login => sub {
		430	my ($pl) = @_;
		431	...
		432	},
		433	);
		434
		435	Example, attach to the jeweler skill:
		436
		437	cf::object->attach (
		438	type => cf::SKILL,
		439	subtype => cf::SK_JEWELER,
		440	on_use_skill => sub {
		441	my ($sk, $ob, $part, $dir, $msg) = @_;
		442	...
		443	},
		444	);
		445
		446	=item cf::CLASS::attachment $name, ...
		447
		448	Register an attachment by C<$name> through which attachable objects of the
		449	given CLASS can refer to this attachment.
		450
		451	Some classes such as crossfire maps and objects can specify attachments
		452	that are attached at load/instantiate time, thus the need for a name.
		453
		454	These calls expect any number of the following handler/hook descriptions:
154		455
155	=over 4	456	=over 4
156		457
157	=item prio => $number	458	=item prio => $number
158		459
…		…
160	by another C<prio> setting). Lower priority handlers get executed	461	by another C<prio> setting). Lower priority handlers get executed
161	earlier. The default priority is C<0>, and many built-in handlers are	462	earlier. The default priority is C<0>, and many built-in handlers are
162	registered at priority C<-1000>, so lower priorities should not be used	463	registered at priority C<-1000>, so lower priorities should not be used
163	unless you know what you are doing.	464	unless you know what you are doing.
164		465
		466	=item type => $type
		467
		468	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		469	given type of objects only (the additional parameter C<subtype> can be
		470	used to further limit to the given subtype).
		471
165	=item on_I<event> => \&cb	472	=item on_I<event> => \&cb
166		473
167	Call the given code reference whenever the named event happens (event is	474	Call the given code reference whenever the named event happens (event is
168	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	475	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
169	handlers are recognised generally depends on the type of object these	476	handlers are recognised generally depends on the type of object these
…		…
178	package and register them. Only handlers for eevents supported by the	485	package and register them. Only handlers for eevents supported by the
179	object/class are recognised.	486	object/class are recognised.
180		487
181	=back	488	=back
182		489
183	=item cf::attach_to_type $object_type, $subtype, ...	490	Example, define an attachment called "sockpuppet" that calls the given
		491	event handler when a monster attacks:
184		492
185	Attach handlers for a specific object type (e.g. TRANSPORT) and	493	cf::object::attachment sockpuppet =>
186	subtype. If C<$subtype> is zero or undef, matches all objects of the given	494	on_skill_attack => sub {
187	type.	495	my ($self, $victim) = @_;
188		496	...
189	=item cf::attach_to_objects ...
190
191	Attach handlers to all objects. Do not use this except for debugging or
192	very rare events, as handlers are (obviously) called for I<all> objects in
193	the game.
194
195	=item cf::attach_to_players ...
196
197	Attach handlers to all players.
198
199	=item cf::attach_to_maps ...
200
201	Attach handlers to all maps.
202
203	=item cf:register_attachment $name, ...
204
205	Register an attachment by name through which objects can refer to this
206	attachment.
207
208	=item cf:register_player_attachment $name, ...
209
210	Register an attachment by name through which players can refer to this
211	attachment.
212
213	=item cf:register_map_attachment $name, ...
214
215	Register an attachment by name through which maps can refer to this
216	attachment.
217
218	=cut
219
220	# the following variables are defined in .xs and must not be re-created
221	our @CB_GLOBAL = (); # registry for all global events
222	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
223	our @CB_PLAYER = ();
224	our @CB_TYPE = (); # registry for type (cf-object class) based events
225	our @CB_MAP = ();
226
227	my %attachment;
228
229	sub _attach_cb($\%$$$) {
230	my ($registry, $undo, $event, $prio, $cb) = @_;
231
232	use sort 'stable';
233
234	$cb = [$prio, $cb];
235
236	@{$registry->[$event]} = sort
237	{ $a->[0] cmp $b->[0] }
238	@{$registry->[$event] || []}, $cb;
239
240	push @{$undo->{cb}}, [$event, $cb];
241	}
242
243	# attach handles attaching event callbacks
244	# the only thing the caller has to do is pass the correct
245	# registry (== where the callback attaches to).
246	sub _attach(\@$@) {
247	my ($registry, $klass, @arg) = @_;
248
249	my $prio = 0;
250
251	my %undo = (
252	registry => $registry,
253	cb => [],
254	);
255
256	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
257
258	while (@arg) {
259	my $type = shift @arg;
260
261	if ($type eq "prio") {
262	$prio = shift @arg;
263
264	} elsif ($type eq "package") {
265	my $pkg = shift @arg;
266
267	while (my ($name, $id) = each %cb_id) {
268	if (my $cb = $pkg->can ($name)) {
269	_attach_cb $registry, %undo, $id, $prio, $cb;
270	}
271	}	497	}
272
273	} elsif (exists $cb_id{$type}) {
274	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
275
276	} elsif (ref $type) {
277	warn "attaching objects not supported, ignoring.\n";
278
279	} else {
280	shift @arg;
281	warn "attach argument '$type' not supported, ignoring.\n";
282	}
283	}
284
285	\%undo
286	}
287
288	sub _attach_attachment {
289	my ($obj, $name, %arg) = @_;
290
291	return if exists $obj->{_attachment}{$name};
292
293	my $res;
294
295	if (my $attach = $attachment{$name}) {
296	my $registry = $obj->registry;
297
298	for (@$attach) {
299	my ($klass, @attach) = @$_;
300	$res = _attach @$registry, $klass, @attach;
301	}
302
303	$obj->{$name} = \%arg;
304	} else {
305	warn "object uses attachment '$name' that is not available, postponing.\n";
306	}
307
308	$obj->{_attachment}{$name} = undef;
309
310	$res->{attachment} = $name;
311	$res
312	}
313
314	*cf::object::attach =
315	*cf::player::attach =
316	*cf::map::attach = sub {
317	my ($obj, $name, %arg) = @_;
318
319	_attach_attachment $obj, $name, %arg;
320	};
321
322	# all those should be optimised
323	*cf::object::detach =
324	*cf::player::detach =
325	*cf::map::detach = sub {
326	my ($obj, $name) = @_;
327
328	delete $obj->{_attachment}{$name};
329	reattach ($obj);
330	};
331
332	*cf::object::attached =
333	*cf::player::attached =
334	*cf::map::attached = sub {
335	my ($obj, $name) = @_;
336
337	exists $obj->{_attachment}{$name}
338	};
339
340	sub attach_global {
341	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
342	}
343
344	sub attach_to_type {
345	my $type = shift;
346	my $subtype = shift;
347
348	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
349	}
350
351	sub attach_to_objects {
352	_attach @CB_OBJECT, KLASS_OBJECT, @_
353	}
354
355	sub attach_to_players {
356	_attach @CB_PLAYER, KLASS_PLAYER, @_
357	}
358
359	sub attach_to_maps {
360	_attach @CB_MAP, KLASS_MAP, @_
361	}
362
363	sub register_attachment {
364	my $name = shift;
365
366	$attachment{$name} = [[KLASS_OBJECT, @_]];
367	}
368
369	sub register_player_attachment {
370	my $name = shift;
371
372	$attachment{$name} = [[KLASS_PLAYER, @_]];
373	}
374
375	sub register_map_attachment {
376	my $name = shift;
377
378	$attachment{$name} = [[KLASS_MAP, @_]];
379	}
380
381	our $override;
382	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
383
384	sub override {
385	$override = 1;
386	@invoke_results = ();
387	}
388
389	sub do_invoke {
390	my $event = shift;
391	my $callbacks = shift;
392
393	@invoke_results = ();
394
395	local $override;
396
397	for (@$callbacks) {
398	eval { &{$_->[1]} };
399
400	if ($@) {
401	warn "$@";
402	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
403	override;
404	}
405
406	return 1 if $override;
407	}
408
409	0	498	}
410	}
411		499
412	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	500	=item $attachable->valid
413
414	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
415
416	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
417
418	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
419
420	Generate a global/object/player/map-specific event with the given arguments.
421
422	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
423	removed in future versions), and there is no public API to access override
424	results (if you must, access C<@cf::invoke_results> directly).
425
426	=back
427
428	=cut
429
430	#############################################################################
431
432	=head2 METHODS VALID FOR ALL CORE OBJECTS
433
434	=over 4
435
436	=item $object->valid, $player->valid, $map->valid
437		501
438	Just because you have a perl object does not mean that the corresponding	502	Just because you have a perl object does not mean that the corresponding
439	C-level object still exists. If you try to access an object that has no	503	C-level object still exists. If you try to access an object that has no
440	valid C counterpart anymore you get an exception at runtime. This method	504	valid C counterpart anymore you get an exception at runtime. This method
441	can be used to test for existence of the C object part without causing an	505	can be used to test for existence of the C object part without causing an
442	exception.	506	exception.
443		507
		508	=cut
		509
		510	# the following variables are defined in .xs and must not be re-created
		511	our @CB_GLOBAL = (); # registry for all global events
		512	our @CB_ATTACHABLE = (); # registry for all attachables
		513	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		514	our @CB_PLAYER = ();
		515	our @CB_CLIENT = ();
		516	our @CB_TYPE = (); # registry for type (cf-object class) based events
		517	our @CB_MAP = ();
		518
		519	my %attachment;
		520
		521	sub _attach_cb($$$$) {
		522	my ($registry, $event, $prio, $cb) = @_;
		523
		524	use sort 'stable';
		525
		526	$cb = [$prio, $cb];
		527
		528	@{$registry->[$event]} = sort
		529	{ $a->[0] cmp $b->[0] }
		530	@{$registry->[$event] || []}, $cb;
		531	}
		532
		533	# hack
		534	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		535
		536	# attach handles attaching event callbacks
		537	# the only thing the caller has to do is pass the correct
		538	# registry (== where the callback attaches to).
		539	sub _attach {
		540	my ($registry, $klass, @arg) = @_;
		541
		542	my $object_type;
		543	my $prio = 0;
		544	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		545
		546	#TODO: get rid of this hack
		547	if ($attachable_klass{$klass}) {
		548	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		549	}
		550
		551	while (@arg) {
		552	my $type = shift @arg;
		553
		554	if ($type eq "prio") {
		555	$prio = shift @arg;
		556
		557	} elsif ($type eq "type") {
		558	$object_type = shift @arg;
		559	$registry = $CB_TYPE[$object_type] ||= [];
		560
		561	} elsif ($type eq "subtype") {
		562	defined $object_type or Carp::croak "subtype specified without type";
		563	my $object_subtype = shift @arg;
		564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		565
		566	} elsif ($type eq "package") {
		567	my $pkg = shift @arg;
		568
		569	while (my ($name, $id) = each %cb_id) {
		570	if (my $cb = $pkg->can ($name)) {
		571	_attach_cb $registry, $id, $prio, $cb;
		572	}
		573	}
		574
		575	} elsif (exists $cb_id{$type}) {
		576	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		577
		578	} elsif (ref $type) {
		579	warn "attaching objects not supported, ignoring.\n";
		580
		581	} else {
		582	shift @arg;
		583	warn "attach argument '$type' not supported, ignoring.\n";
		584	}
		585	}
		586	}
		587
		588	sub _object_attach {
		589	my ($obj, $name, %arg) = @_;
		590
		591	return if exists $obj->{_attachment}{$name};
		592
		593	if (my $attach = $attachment{$name}) {
		594	my $registry = $obj->registry;
		595
		596	for (@$attach) {
		597	my ($klass, @attach) = @$_;
		598	_attach $registry, $klass, @attach;
		599	}
		600
		601	$obj->{$name} = \%arg;
		602	} else {
		603	warn "object uses attachment '$name' that is not available, postponing.\n";
		604	}
		605
		606	$obj->{_attachment}{$name} = undef;
		607	}
		608
		609	sub cf::attachable::attach {
		610	if (ref $_[0]) {
		611	_object_attach @_;
		612	} else {
		613	_attach shift->_attach_registry, @_;
		614	}
		615	};
		616
		617	# all those should be optimised
		618	sub cf::attachable::detach {
		619	my ($obj, $name) = @_;
		620
		621	if (ref $obj) {
		622	delete $obj->{_attachment}{$name};
		623	reattach ($obj);
		624	} else {
		625	Carp::croak "cannot, currently, detach class attachments";
		626	}
		627	};
		628
		629	sub cf::attachable::attached {
		630	my ($obj, $name) = @_;
		631
		632	exists $obj->{_attachment}{$name}
		633	}
		634
		635	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		636	eval "#line " . __LINE__ . " 'cf.pm'
		637	sub cf::\L$klass\E::_attach_registry {
		638	(\\\@CB_$klass, KLASS_$klass)
		639	}
		640
		641	sub cf::\L$klass\E::attachment {
		642	my \$name = shift;
		643
		644	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		645	}
		646	";
		647	die if $@;
		648	}
		649
		650	our $override;
		651	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		652
		653	sub override {
		654	$override = 1;
		655	@invoke_results = ();
		656	}
		657
		658	sub do_invoke {
		659	my $event = shift;
		660	my $callbacks = shift;
		661
		662	@invoke_results = ();
		663
		664	local $override;
		665
		666	for (@$callbacks) {
		667	eval { &{$_->[1]} };
		668
		669	if ($@) {
		670	warn "$@";
		671	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		672	override;
		673	}
		674
		675	return 1 if $override;
		676	}
		677
		678	0
		679	}
		680
		681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		682
		683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		684
		685	Generate an object-specific event with the given arguments.
		686
		687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		688	removed in future versions), and there is no public API to access override
		689	results (if you must, access C<@cf::invoke_results> directly).
		690
444	=back	691	=back
445		692
446	=cut	693	=cut
447
448	*cf::object::valid =
449	*cf::player::valid =
450	*cf::map::valid = \&cf::_valid;
451		694
452	#############################################################################	695	#############################################################################
453	# object support	696	# object support
454		697
455	sub instantiate {
456	my ($obj, $data) = @_;
457
458	$data = from_json $data;
459
460	for (@$data) {
461	my ($name, $args) = @$_;
462
463	$obj->attach ($name, %{$args || {} });
464	}
465	}
466
467	# basically do the same as instantiate, without calling instantiate
468	sub reattach {	698	sub reattach {
		699	# basically do the same as instantiate, without calling instantiate
469	my ($obj) = @_;	700	my ($obj) = @_;
		701
470	my $registry = $obj->registry;	702	my $registry = $obj->registry;
471		703
472	@$registry = ();	704	@$registry = ();
473		705
474	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	706	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
475		707
476	for my $name (keys %{ $obj->{_attachment} || {} }) {	708	for my $name (keys %{ $obj->{_attachment} || {} }) {
477	if (my $attach = $attachment{$name}) {	709	if (my $attach = $attachment{$name}) {
478	for (@$attach) {	710	for (@$attach) {
479	my ($klass, @attach) = @$_;	711	my ($klass, @attach) = @$_;
480	_attach @$registry, $klass, @attach;	712	_attach $registry, $klass, @attach;
481	}	713	}
482	} else {	714	} else {
483	warn "object uses attachment '$name' that is not available, postponing.\n";	715	warn "object uses attachment '$name' that is not available, postponing.\n";
484	}	716	}
485	}	717	}
486	}	718	}
487		719
488	sub object_freezer_save {	720	cf::attachable->attach (
489	my ($filename, $rdata, $objs) = @_;
490
491	if (length $$rdata) {
492	warn sprintf "saving %s (%d,%d)\n",
493	$filename, length $$rdata, scalar @$objs;
494
495	if (open my $fh, ">:raw", "$filename~") {
496	chmod SAVE_MODE, $fh;
497	syswrite $fh, $$rdata;
498	close $fh;
499
500	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
501	chmod SAVE_MODE, $fh;
502	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
503	close $fh;
504	rename "$filename.pst~", "$filename.pst";
505	} else {
506	unlink "$filename.pst";
507	}
508
509	rename "$filename~", $filename;
510	} else {
511	warn "FATAL: $filename~: $!\n";
512	}
513	} else {
514	unlink $filename;
515	unlink "$filename.pst";
516	}
517	}
518
519	sub object_thawer_load {
520	my ($filename) = @_;
521
522	local $/;
523
524	my $av;
525
526	#TODO: use sysread etc.
527	if (open my $data, "<:raw:perlio", $filename) {
528	$data = <$data>;
529	if (open my $pst, "<:raw:perlio", "$filename.pst") {
530	$av = eval { (Storable::thaw <$pst>)->{objs} };
531	}
532	return ($data, $av);
533	}
534
535	()
536	}
537
538	attach_to_objects
539	prio => -1000000,	721	prio => -1000000,
		722	on_instantiate => sub {
		723	my ($obj, $data) = @_;
		724
		725	$data = from_json $data;
		726
		727	for (@$data) {
		728	my ($name, $args) = @$_;
		729
		730	$obj->attach ($name, %{$args || {} });
		731	}
		732	},
		733	on_reattach => \&reattach,
540	on_clone => sub {	734	on_clone => sub {
541	my ($src, $dst) = @_;	735	my ($src, $dst) = @_;
542		736
543	@{$dst->registry} = @{$src->registry};	737	@{$dst->registry} = @{$src->registry};
544		738
545	%$dst = %$src;	739	%$dst = %$src;
546		740
547	%{$dst->{_attachment}} = %{$src->{_attachment}}	741	%{$dst->{_attachment}} = %{$src->{_attachment}}
548	if exists $src->{_attachment};	742	if exists $src->{_attachment};
549	},	743	},
550	;	744	);
		745
		746	sub object_freezer_save {
		747	my ($filename, $rdata, $objs) = @_;
		748
		749	sync_job {
		750	if (length $$rdata) {
		751	warn sprintf "saving %s (%d,%d)\n",
		752	$filename, length $$rdata, scalar @$objs;
		753
		754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		755	chmod SAVE_MODE, $fh;
		756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		757	aio_fsync $fh;
		758	close $fh;
		759
		760	if (@$objs) {
		761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		762	chmod SAVE_MODE, $fh;
		763	my $data = Storable::nfreeze { version => 1, objs => $objs };
		764	aio_write $fh, 0, (length $data), $data, 0;
		765	aio_fsync $fh;
		766	close $fh;
		767	aio_rename "$filename.pst~", "$filename.pst";
		768	}
		769	} else {
		770	aio_unlink "$filename.pst";
		771	}
		772
		773	aio_rename "$filename~", $filename;
		774	} else {
		775	warn "FATAL: $filename~: $!\n";
		776	}
		777	} else {
		778	aio_unlink $filename;
		779	aio_unlink "$filename.pst";
		780	}
		781	}
		782	}
		783
		784	sub object_freezer_as_string {
		785	my ($rdata, $objs) = @_;
		786
		787	use Data::Dumper;
		788
		789	$$rdata . Dumper $objs
		790	}
		791
		792	sub object_thawer_load {
		793	my ($filename) = @_;
		794
		795	my ($data, $av);
		796
		797	(aio_load $filename, $data) >= 0
		798	or return;
		799
		800	unless (aio_stat "$filename.pst") {
		801	(aio_load "$filename.pst", $av) >= 0
		802	or return;
		803	$av = eval { (Storable::thaw <$av>)->{objs} };
		804	}
		805
		806	return ($data, $av);
		807	}
551		808
552	#############################################################################	809	#############################################################################
553	# old plug-in events	810	# command handling &c
554		811
555	sub inject_event {	812	=item cf::register_command $name => \&callback($ob,$args);
556	my $extension = shift;
557	my $event_code = shift;
558		813
559	my $cb = $hook[$event_code]{$extension}	814	Register a callback for execution when the client sends the user command
560	or return;	815	$name.
561		816
562	&$cb	817	=cut
563	}
564
565	sub inject_global_event {
566	my $event = shift;
567
568	my $cb = $hook[$event]
569	or return;
570
571	List::Util::max map &$_, values %$cb
572	}
573
574	sub inject_command {
575	my ($name, $obj, $params) = @_;
576
577	for my $cmd (@{ $command{$name} }) {
578	$cmd->[1]->($obj, $params);
579	}
580
581	-1
582	}
583		818
584	sub register_command {	819	sub register_command {
585	my ($name, $time, $cb) = @_;	820	my ($name, $cb) = @_;
586		821
587	my $caller = caller;	822	my $caller = caller;
588	#warn "registering command '$name/$time' to '$caller'";	823	#warn "registering command '$name/$time' to '$caller'";
589		824
590	push @{ $command{$name} }, [$time, $cb, $caller];	825	push @{ $COMMAND{$name} }, [$caller, $cb];
591	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
592	}	826	}
		827
		828	=item cf::register_extcmd $name => \&callback($pl,$packet);
		829
		830	Register a callbackf ro execution when the client sends an extcmd packet.
		831
		832	If the callback returns something, it is sent back as if reply was being
		833	called.
		834
		835	=cut
593		836
594	sub register_extcmd {	837	sub register_extcmd {
595	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
596		839
597	my $caller = caller;	840	my $caller = caller;
598	#warn "registering extcmd '$name' to '$caller'";	841	#warn "registering extcmd '$name' to '$caller'";
599		842
600	$extcmd{$name} = [$cb, $caller];	843	$EXTCMD{$name} = [$cb, $caller];
601	}	844	}
		845
		846	cf::player->attach (
		847	on_command => sub {
		848	my ($pl, $name, $params) = @_;
		849
		850	my $cb = $COMMAND{$name}
		851	or return;
		852
		853	for my $cmd (@$cb) {
		854	$cmd->[1]->($pl->ob, $params);
		855	}
		856
		857	cf::override;
		858	},
		859	on_extcmd => sub {
		860	my ($pl, $buf) = @_;
		861
		862	my $msg = eval { from_json $buf };
		863
		864	if (ref $msg) {
		865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		866	if (my %reply = $cb->[0]->($pl, $msg)) {
		867	$pl->ext_reply ($msg->{msgid}, %reply);
		868	}
		869	}
		870	} else {
		871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		872	}
		873
		874	cf::override;
		875	},
		876	);
602		877
603	sub register {	878	sub register {
604	my ($base, $pkg) = @_;	879	my ($base, $pkg) = @_;
605		880
606	#TODO	881	#TODO
…		…
625	. "#line 1 \"$path\"\n{\n"	900	. "#line 1 \"$path\"\n{\n"
626	. (do { local $/; <$fh> })	901	. (do { local $/; <$fh> })
627	. "\n};\n1";	902	. "\n};\n1";
628		903
629	eval $source	904	eval $source
630	or die "$path: $@";	905	or die $@ ? "$path: $@\n"
		906	: "extension disabled.\n";
631		907
632	push @exts, $pkg;	908	push @exts, $pkg;
633	$ext_pkg{$base} = $pkg;	909	$ext_pkg{$base} = $pkg;
634		910
635	# no strict 'refs';	911	# no strict 'refs';
…		…
648	# for my $idx (0 .. $#PLUGIN_EVENT) {	924	# for my $idx (0 .. $#PLUGIN_EVENT) {
649	# delete $hook[$idx]{$pkg};	925	# delete $hook[$idx]{$pkg};
650	# }	926	# }
651		927
652	# remove commands	928	# remove commands
653	for my $name (keys %command) {	929	for my $name (keys %COMMAND) {
654	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
655		931
656	if (@cb) {	932	if (@cb) {
657	$command{$name} = \@cb;	933	$COMMAND{$name} = \@cb;
658	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
659	} else {	934	} else {
660	delete $command{$name};
661	delete $COMMAND{"$name\000"};	935	delete $COMMAND{$name};
662	}	936	}
663	}	937	}
664		938
665	# remove extcmds	939	# remove extcmds
666	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
667	delete $extcmd{$name};	941	delete $EXTCMD{$name};
668	}	942	}
669		943
670	if (my $cb = $pkg->can ("unload")) {	944	if (my $cb = $pkg->can ("unload")) {
671	eval {	945	eval {
672	$cb->($pkg);	946	$cb->($pkg);
…		…
676		950
677	Symbol::delete_package $pkg;	951	Symbol::delete_package $pkg;
678	}	952	}
679		953
680	sub load_extensions {	954	sub load_extensions {
681	my $LIBDIR = maps_directory "perl";
682
683	for my $ext (<$LIBDIR/*.ext>) {	955	for my $ext (<$LIBDIR/*.ext>) {
684	next unless -r $ext;	956	next unless -r $ext;
685	eval {	957	eval {
686	load_extension $ext;	958	load_extension $ext;
687	1	959	1
688	} or warn "$ext not loaded: $@";	960	} or warn "$ext not loaded: $@";
689	}	961	}
690	}	962	}
691		963
692	#############################################################################	964	#############################################################################
693	# extcmd framework, basically convert ext <msg>
694	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
695
696	attach_to_players
697	on_extcmd => sub {
698	my ($pl, $buf) = @_;
699
700	my $msg = eval { from_json $buf };
701
702	if (ref $msg) {
703	if (my $cb = $extcmd{$msg->{msgtype}}) {
704	if (my %reply = $cb->[0]->($pl, $msg)) {
705	$pl->ext_reply ($msg->{msgid}, %reply);
706	}
707	}
708	} else {
709	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
710	}
711
712	cf::override;
713	},
714	;
715
716	#############################################################################
717	# load/save/clean perl data associated with a map	965	# load/save/clean perl data associated with a map
718		966
719	*cf::mapsupport::on_clean = sub {	967	*cf::mapsupport::on_clean = sub {
720	my ($map) = @_;	968	my ($map) = @_;
721		969
…		…
723	defined $path or return;	971	defined $path or return;
724		972
725	unlink "$path.pst";	973	unlink "$path.pst";
726	};	974	};
727		975
728	attach_to_maps prio => -10000, package => cf::mapsupport::;	976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
729		977
730	#############################################################################	978	#############################################################################
731	# load/save perl data associated with player->ob objects	979	# load/save perl data associated with player->ob objects
732		980
733	sub all_objects(@) {	981	sub all_objects(@) {
734	@_, map all_objects ($_->inv), @_	982	@_, map all_objects ($_->inv), @_
735	}	983	}
736		984
737	# TODO: compatibility cruft, remove when no longer needed	985	# TODO: compatibility cruft, remove when no longer needed
738	attach_to_players	986	cf::player->attach (
739	on_load => sub {	987	on_load => sub {
740	my ($pl, $path) = @_;	988	my ($pl, $path) = @_;
741		989
742	for my $o (all_objects $pl->ob) {	990	for my $o (all_objects $pl->ob) {
743	if (my $value = $o->get_ob_key_value ("_perl_data")) {	991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
745		993
746	%$o = %{ Storable::thaw pack "H*", $value };	994	%$o = %{ Storable::thaw pack "H*", $value };
747	}	995	}
748	}	996	}
749	},	997	},
750	;	998	);
751		999
752	#############################################################################	1000	#############################################################################
753		1001
754	=head2 CORE EXTENSIONS	1002	=head2 CORE EXTENSIONS
755		1003
756	Functions and methods that extend core crossfire objects.	1004	Functions and methods that extend core crossfire objects.
		1005
		1006	=head3 cf::player
757		1007
758	=over 4	1008	=over 4
759		1009
760	=item cf::player::exists $login	1010	=item cf::player::exists $login
761		1011
…		…
766	sub cf::player::exists($) {	1016	sub cf::player::exists($) {
767	cf::player::find $_[0]	1017	cf::player::find $_[0]
768	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
769	}	1019	}
770		1020
		1021	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1022
		1023	Sends an ext reply to the player.
		1024
		1025	=cut
		1026
		1027	sub cf::player::ext_reply($$$%) {
		1028	my ($self, $id, %msg) = @_;
		1029
		1030	$msg{msgid} = $id;
		1031
		1032	$self->send ("ext " . to_json \%msg);
		1033	}
		1034
		1035	=back
		1036
		1037
		1038	=head3 cf::map
		1039
		1040	=over 4
		1041
		1042	=cut
		1043
		1044	package cf::map;
		1045
		1046	use Fcntl;
		1047	use Coro::AIO;
		1048
		1049	our $MAX_RESET = 7200;
		1050	our $DEFAULT_RESET = 3600;
		1051	$MAX_RESET = 10;#d#
		1052	$DEFAULT_RESET = 10;#d#
		1053
		1054	sub generate_random_map {
		1055	my ($path, $rmp) = @_;
		1056
		1057	# mit "rum" bekleckern, nicht
		1058	cf::map::_create_random_map
		1059	$path,
		1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1063	$rmp->{exit_on_final_map},
		1064	$rmp->{xsize}, $rmp->{ysize},
		1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1070	(cf::region::find $rmp->{region})
		1071	}
		1072
		1073	# and all this just because we cannot iterate over
		1074	# all maps in C++...
		1075	sub change_all_map_light {
		1076	my ($change) = @_;
		1077
		1078	$_->change_map_light ($change) for values %cf::MAP;
		1079	}
		1080
		1081	sub try_load_header($) {
		1082	my ($path) = @_;
		1083
		1084	utf8::encode $path;
		1085	aio_open $path, O_RDONLY, 0
		1086	or return;
		1087
		1088	my $map = cf::map::new
		1089	or return;
		1090
		1091	$map->load_header ($path)
		1092	or return;
		1093
		1094	$map->{load_path} = $path;
		1095	use Data::Dumper; warn Dumper $map;#d#
		1096
		1097	$map
		1098	}
		1099
		1100	sub find_map {
		1101	my ($path, $origin) = @_;
		1102
		1103	#warn "find_map<$path,$origin>\n";#d#
		1104
		1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;
		1106	my $key = $path->as_string;
		1107
		1108	$cf::MAP{$key} || do {
		1109	# do it the slow way
		1110	my $map = try_load_header $path->save_path;
		1111
		1112	if ($map) {
		1113	# safety
		1114	$map->{instantiate_time} = $cf::RUNTIME
		1115	if $map->{instantiate_time} > $cf::RUNTIME;
		1116	} else {
		1117	if (my $rmp = $path->random_map_params) {
		1118	$map = generate_random_map $key, $rmp;
		1119	} else {
		1120	$map = try_load_header $path->load_path;
		1121	}
		1122
		1123	$map or return;
		1124
		1125	$map->{instantiate_time} = $cf::RUNTIME;
		1126	$map->instantiate;
		1127
		1128	# per-player maps become, after loading, normal maps
		1129	$map->per_player (0) if $path->{user_rel};
		1130	}
		1131
		1132	$map->path ($key);
		1133	$map->{path} = $path;
		1134	$map->last_access ($cf::RUNTIME);
		1135
		1136	$map->reset if $map->should_reset;
		1137
		1138	$cf::MAP{$key} = $map
		1139	}
		1140	}
		1141
		1142	sub load {
		1143	my ($self) = @_;
		1144
		1145	return if $self->in_memory != cf::MAP_SWAPPED;
		1146
		1147	$self->in_memory (cf::MAP_LOADING);
		1148
		1149	my $path = $self->{path};
		1150
		1151	$self->alloc;
		1152	$self->load_objects ($self->{load_path}, 1)
		1153	or return;
		1154
		1155	if (my $uniq = $path->uniq_path) {
		1156	utf8::encode $uniq;
		1157	if (aio_open $uniq, O_RDONLY, 0) {
		1158	$self->clear_unique_items;
		1159	$self->load_objects ($uniq, 0);
		1160	}
		1161	}
		1162
		1163	# now do the right thing for maps
		1164	$self->link_multipart_objects;
		1165
		1166	if ($self->{path}->is_style_map) {
		1167	$self->{deny_save} = 1;
		1168	$self->{deny_reset} = 1;
		1169	} else {
		1170	$self->fix_auto_apply;
		1171	$self->decay_objects;
		1172	$self->update_buttons;
		1173	$self->set_darkness_map;
		1174	$self->difficulty ($self->estimate_difficulty)
		1175	unless $self->difficulty;
		1176	$self->activate;
		1177	}
		1178
		1179	$self->in_memory (cf::MAP_IN_MEMORY);
		1180	}
		1181
		1182	sub load_map_sync {
		1183	my ($path, $origin) = @_;
		1184
		1185	#warn "load_map_sync<$path, $origin>\n";#d#
		1186
		1187	cf::sync_job {
		1188	my $map = cf::map::find_map $path, $origin
		1189	or return;
		1190	$map->load;
		1191	$map
		1192	}
		1193	}
		1194
		1195	sub save {
		1196	my ($self) = @_;
		1197
		1198	my $save = $self->{path}->save_path; utf8::encode $save;
		1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1200
		1201	$self->{last_save} = $cf::RUNTIME;
		1202
		1203	return unless $self->dirty;
		1204
		1205	$self->{load_path} = $save;
		1206
		1207	return if $self->{deny_save};
		1208
		1209	warn "saving map ", $self->path;
		1210
		1211	if ($uniq) {
		1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1213	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1214	} else {
		1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1216	}
		1217	}
		1218
		1219	sub swap_out {
		1220	my ($self) = @_;
		1221
		1222	return if $self->players;
		1223	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1224	return if $self->{deny_save};
		1225
		1226	$self->save;
		1227	$self->clear;
		1228	$self->in_memory (cf::MAP_SWAPPED);
		1229	}
		1230
		1231	sub should_reset {
		1232	my ($map) = @_;
		1233
		1234	# TODO: safety, remove and allow resettable per-player maps
		1235	return if $map->{path}{user_rel};#d#
		1236	return if $map->{deny_reset};
		1237	#return unless $map->reset_timeout;
		1238
		1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
		1240
		1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
		1242	}
		1243
		1244	sub reset {
		1245	my ($self) = @_;
		1246
		1247	return if $self->players;
		1248	return if $self->{path}{user_rel};#d#
		1249
		1250	warn "resetting map ", $self->path;#d#
		1251
		1252	utf8::encode (my $save = $self->{path}->save_path);
		1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1255
		1256	$_->clear_links_to ($self) for values %cf::MAP;
		1257
		1258	$self->clear;
		1259	$self->in_memory (cf::MAP_SWAPPED);
		1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
		1261	}
		1262
		1263	sub customise_for {
		1264	my ($map, $ob) = @_;
		1265
		1266	if ($map->per_player) {
		1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1268	}
		1269
		1270	$map
		1271	}
		1272
		1273	sub emergency_save {
		1274	local $cf::FREEZE = 1;
		1275
		1276	warn "enter emergency map save\n";
		1277
		1278	cf::sync_job {
		1279	warn "begin emergency map save\n";
		1280	$_->save for values %cf::MAP;
		1281	};
		1282
		1283	warn "end emergency map save\n";
		1284	}
		1285
		1286	package cf;
		1287
		1288	=back
		1289
		1290
		1291	=head3 cf::object::player
		1292
		1293	=over 4
		1294
771	=item $player->reply ($npc, $msg[, $flags])	1295	=item $player_object->reply ($npc, $msg[, $flags])
772		1296
773	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1297	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
774	can be C<undef>. Does the right thing when the player is currently in a	1298	can be C<undef>. Does the right thing when the player is currently in a
775	dialogue with the given NPC character.	1299	dialogue with the given NPC character.
776		1300
777	=cut	1301	=cut
778		1302
779	# rough implementation of a future "reply" method that works	1303	# rough implementation of a future "reply" method that works
780	# with dialog boxes.	1304	# with dialog boxes.
		1305	#TODO: the first argument must go, split into a $npc->reply_to ( method
781	sub cf::object::player::reply($$$;$) {	1306	sub cf::object::player::reply($$$;$) {
782	my ($self, $npc, $msg, $flags) = @_;	1307	my ($self, $npc, $msg, $flags) = @_;
783		1308
784	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1309	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
785		1310
…		…
789	$msg = $npc->name . " says: $msg" if $npc;	1314	$msg = $npc->name . " says: $msg" if $npc;
790	$self->message ($msg, $flags);	1315	$self->message ($msg, $flags);
791	}	1316	}
792	}	1317	}
793		1318
794	=item $player->ext_reply ($msgid, $msgtype, %msg)	1319	=item $player_object->may ("access")
795		1320
796	Sends an ext reply to the player.	1321	Returns wether the given player is authorized to access resource "access"
		1322	(e.g. "command_wizcast").
797		1323
798	=cut	1324	=cut
799		1325
800	sub cf::player::ext_reply($$$%) {	1326	sub cf::object::player::may {
		1327	my ($self, $access) = @_;
		1328
		1329	$self->flag (cf::FLAG_WIZ) ||
		1330	(ref $cf::CFG{"may_$access"}
		1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1332	: $cf::CFG{"may_$access"})
		1333	}
		1334
		1335	sub cf::object::player::enter_link {
		1336	my ($self) = @_;
		1337
		1338	return if $self->map == $LINK_MAP;
		1339
		1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1341	if $self->map;
		1342
		1343	$self->enter_map ($LINK_MAP, 20, 20);
		1344	$self->deactivate_recursive;
		1345	}
		1346
		1347	sub cf::object::player::leave_link {
		1348	my ($self, $map, $x, $y) = @_;
		1349
		1350	my $link_pos = delete $self->{_link_pos};
		1351
		1352	unless ($map) {
		1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1354
		1355	# restore original map position
		1356	($map, $x, $y) = @{ $link_pos || [] };
		1357	$map = cf::map::find_map $map;
		1358
		1359	unless ($map) {
		1360	($map, $x, $y) = @$EMERGENCY_POSITION;
		1361	$map = cf::map::find_map $map
		1362	or die "FATAL: cannot load emergency map\n";
		1363	}
		1364	}
		1365
		1366	($x, $y) = (-1, -1)
		1367	unless (defined $x) && (defined $y);
		1368
		1369	# use -1 or undef as default coordinates, not 0, 0
		1370	($x, $y) = ($map->enter_x, $map->enter_y)
		1371	if $x <=0 && $y <= 0;
		1372
		1373	$map->load;
		1374
		1375	$self->activate_recursive;
		1376	$self->enter_map ($map, $x, $y);
		1377	}
		1378
		1379	=item $player_object->goto_map ($map, $x, $y)
		1380
		1381	=cut
		1382
		1383	sub cf::object::player::goto_map {
		1384	my ($self, $path, $x, $y) = @_;
		1385
		1386	$self->enter_link;
		1387
		1388	(Coro::async {
		1389	$path = new cf::path $path;
		1390
		1391	my $map = cf::map::find_map $path->as_string;
		1392	$map = $map->customise_for ($self) if $map;
		1393
		1394	warn "entering ", $map->path, " at ($x, $y)\n"
		1395	if $map;
		1396
		1397	$self->leave_link ($map, $x, $y);
		1398	})->prio (1);
		1399	}
		1400
		1401	=item $player_object->enter_exit ($exit_object)
		1402
		1403	=cut
		1404
		1405	sub parse_random_map_params {
		1406	my ($spec) = @_;
		1407
		1408	my $rmp = { # defaults
		1409	xsize => 10,
		1410	ysize => 10,
		1411	};
		1412
		1413	for (split /\n/, $spec) {
		1414	my ($k, $v) = split /\s+/, $_, 2;
		1415
		1416	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1417	}
		1418
		1419	$rmp
		1420	}
		1421
		1422	sub prepare_random_map {
		1423	my ($exit) = @_;
		1424
		1425	# all this does is basically replace the /! path by
		1426	# a new random map path (?random/...) with a seed
		1427	# that depends on the exit object
		1428
		1429	my $rmp = parse_random_map_params $exit->msg;
		1430
		1431	if ($exit->map) {
		1432	$rmp->{region} = $exit->map->region_name;
		1433	$rmp->{origin_map} = $exit->map->path;
		1434	$rmp->{origin_x} = $exit->x;
		1435	$rmp->{origin_y} = $exit->y;
		1436	}
		1437
		1438	$rmp->{random_seed} ||= $exit->random_seed;
		1439
		1440	my $data = cf::to_json $rmp;
		1441	my $md5 = Digest::MD5::md5_hex $data;
		1442
		1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1444	aio_write $fh, 0, (length $data), $data, 0;
		1445
		1446	$exit->slaying ("?random/$md5");
		1447	$exit->msg (undef);
		1448	}
		1449	}
		1450
		1451	sub cf::object::player::enter_exit {
801	my ($self, $id, %msg) = @_;	1452	my ($self, $exit) = @_;
802		1453
803	$msg{msgid} = $id;	1454	return unless $self->type == cf::PLAYER;
804		1455
805	$self->send ("ext " . to_json \%msg);	1456	$self->enter_link;
		1457
		1458	(Coro::async {
		1459	unless (eval {
		1460
		1461	prepare_random_map $exit
		1462	if $exit->slaying eq "/!";
		1463
		1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1466
		1467	1;
		1468	}) {
		1469	$self->message ("Something went wrong deep within the crossfire server. "
		1470	. "I'll try to bring you back to the map you were before. "
		1471	. "Please report this to the dungeon master",
		1472	cf::NDI_UNIQUE | cf::NDI_RED);
		1473
		1474	warn "ERROR in enter_exit: $@";
		1475	$self->leave_link;
		1476	}
		1477	})->prio (1);
806	}	1478	}
		1479
		1480	=head3 cf::client
		1481
		1482	=over 4
		1483
		1484	=item $client->send_drawinfo ($text, $flags)
		1485
		1486	Sends a drawinfo packet to the client. Circumvents output buffering so
		1487	should not be used under normal circumstances.
		1488
		1489	=cut
		1490
		1491	sub cf::client::send_drawinfo {
		1492	my ($self, $text, $flags) = @_;
		1493
		1494	utf8::encode $text;
		1495	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1496	}
		1497
		1498
		1499	=item $success = $client->query ($flags, "text", \&cb)
		1500
		1501	Queues a query to the client, calling the given callback with
		1502	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1503	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1504
		1505	Queries can fail, so check the return code. Or don't, as queries will become
		1506	reliable at some point in the future.
		1507
		1508	=cut
		1509
		1510	sub cf::client::query {
		1511	my ($self, $flags, $text, $cb) = @_;
		1512
		1513	return unless $self->state == ST_PLAYING
		1514	|| $self->state == ST_SETUP
		1515	|| $self->state == ST_CUSTOM;
		1516
		1517	$self->state (ST_CUSTOM);
		1518
		1519	utf8::encode $text;
		1520	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1521
		1522	$self->send_packet ($self->{query_queue}[0][0])
		1523	if @{ $self->{query_queue} } == 1;
		1524	}
		1525
		1526	cf::client->attach (
		1527	on_reply => sub {
		1528	my ($ns, $msg) = @_;
		1529
		1530	# this weird shuffling is so that direct followup queries
		1531	# get handled first
		1532	my $queue = delete $ns->{query_queue};
		1533
		1534	(shift @$queue)->[1]->($msg);
		1535
		1536	push @{ $ns->{query_queue} }, @$queue;
		1537
		1538	if (@{ $ns->{query_queue} } == @$queue) {
		1539	if (@$queue) {
		1540	$ns->send_packet ($ns->{query_queue}[0][0]);
		1541	} else {
		1542	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1543	}
		1544	}
		1545	},
		1546	);
		1547
		1548	=item $client->coro (\&cb)
		1549
		1550	Create a new coroutine, running the specified callback. The coroutine will
		1551	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1552	or loss of connection).
		1553
		1554	=cut
		1555
		1556	sub cf::client::coro {
		1557	my ($self, $cb) = @_;
		1558
		1559	my $coro; $coro = async {
		1560	eval {
		1561	$cb->();
		1562	};
		1563	warn $@ if $@;
		1564	};
		1565
		1566	$coro->on_destroy (sub {
		1567	delete $self->{_coro}{$coro+0};
		1568	});
		1569
		1570	$self->{_coro}{$coro+0} = $coro;
		1571
		1572	$coro
		1573	}
		1574
		1575	cf::client->attach (
		1576	on_destroy => sub {
		1577	my ($ns) = @_;
		1578
		1579	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1580	},
		1581	);
807		1582
808	=back	1583	=back
809		1584
810	=cut
811
812	#############################################################################
813		1585
814	=head2 SAFE SCRIPTING	1586	=head2 SAFE SCRIPTING
815		1587
816	Functions that provide a safe environment to compile and execute	1588	Functions that provide a safe environment to compile and execute
817	snippets of perl code without them endangering the safety of the server	1589	snippets of perl code without them endangering the safety of the server
818	itself. Looping constructs, I/O operators and other built-in functionality	1590	itself. Looping constructs, I/O operators and other built-in functionality
819	is not available in the safe scripting environment, and the number of	1591	is not available in the safe scripting environment, and the number of
820	functions and methods that cna be called is greatly reduced.	1592	functions and methods that can be called is greatly reduced.
821		1593
822	=cut	1594	=cut
823		1595
824	our $safe = new Safe "safe";	1596	our $safe = new Safe "safe";
825	our $safe_hole = new Safe::Hole;	1597	our $safe_hole = new Safe::Hole;
…		…
832		1604
833	=pod	1605	=pod
834		1606
835	The following fucntions and emthods are available within a safe environment:	1607	The following fucntions and emthods are available within a safe environment:
836		1608
837	cf::object contr pay_amount pay_player	1609	cf::object contr pay_amount pay_player map
838	cf::object::player player	1610	cf::object::player player
839	cf::player peaceful	1611	cf::player peaceful
		1612	cf::map trigger
840		1613
841	=cut	1614	=cut
842		1615
843	for (	1616	for (
844	["cf::object" => qw(contr pay_amount pay_player)],	1617	["cf::object" => qw(contr pay_amount pay_player map)],
845	["cf::object::player" => qw(player)],	1618	["cf::object::player" => qw(player)],
846	["cf::player" => qw(peaceful)],	1619	["cf::player" => qw(peaceful)],
		1620	["cf::map" => qw(trigger)],
847	) {	1621	) {
848	no strict 'refs';	1622	no strict 'refs';
849	my ($pkg, @funs) = @$_;	1623	my ($pkg, @funs) = @$_;
850	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1624	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
851	for @funs;	1625	for @funs;
…		…
961		1735
962	Immediately write the database to disk I<if it is dirty>.	1736	Immediately write the database to disk I<if it is dirty>.
963		1737
964	=cut	1738	=cut
965		1739
		1740	our $DB;
		1741
966	{	1742	{
967	my $db;
968	my $path = cf::localdir . "/database.pst";	1743	my $path = cf::localdir . "/database.pst";
969		1744
970	sub db_load() {	1745	sub db_load() {
971	warn "loading database $path\n";#d# remove later	1746	warn "loading database $path\n";#d# remove later
972	$db = stat $path ? Storable::retrieve $path : { };	1747	$DB = stat $path ? Storable::retrieve $path : { };
973	}	1748	}
974		1749
975	my $pid;	1750	my $pid;
976		1751
977	sub db_save() {	1752	sub db_save() {
978	warn "saving database $path\n";#d# remove later	1753	warn "saving database $path\n";#d# remove later
979	waitpid $pid, 0 if $pid;	1754	waitpid $pid, 0 if $pid;
980	if (0 == ($pid = fork)) {	1755	if (0 == ($pid = fork)) {
981	$db->{_meta}{version} = 1;	1756	$DB->{_meta}{version} = 1;
982	Storable::nstore $db, "$path~";	1757	Storable::nstore $DB, "$path~";
983	rename "$path~", $path;	1758	rename "$path~", $path;
984	cf::_exit 0 if defined $pid;	1759	cf::_exit 0 if defined $pid;
985	}	1760	}
986	}	1761	}
987		1762
…		…
990	sub db_sync() {	1765	sub db_sync() {
991	db_save if $dirty;	1766	db_save if $dirty;
992	undef $dirty;	1767	undef $dirty;
993	}	1768	}
994		1769
995	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
996	db_sync;	1771	db_sync;
997	});	1772	});
998		1773
999	sub db_dirty() {	1774	sub db_dirty() {
1000	$dirty = 1;	1775	$dirty = 1;
1001	$idle->start;	1776	$idle->start;
1002	}	1777	}
1003		1778
1004	sub db_get($;$) {	1779	sub db_get($;$) {
1005	@_ >= 2	1780	@_ >= 2
1006	? $db->{$_[0]}{$_[1]}	1781	? $DB->{$_[0]}{$_[1]}
1007	: ($db->{$_[0]} ||= { })	1782	: ($DB->{$_[0]} ||= { })
1008	}	1783	}
1009		1784
1010	sub db_put($$;$) {	1785	sub db_put($$;$) {
1011	if (@_ >= 3) {	1786	if (@_ >= 3) {
1012	$db->{$_[0]}{$_[1]} = $_[2];	1787	$DB->{$_[0]}{$_[1]} = $_[2];
1013	} else {	1788	} else {
1014	$db->{$_[0]} = $_[1];	1789	$DB->{$_[0]} = $_[1];
1015	}	1790	}
1016	db_dirty;	1791	db_dirty;
1017	}	1792	}
1018		1793
1019	attach_global	1794	cf::global->attach (
1020	prio => 10000,	1795	prio => 10000,
1021	on_cleanup => sub {	1796	on_cleanup => sub {
1022	db_sync;	1797	db_sync;
1023	},	1798	},
1024	;	1799	);
1025	}	1800	}
1026		1801
1027	#############################################################################	1802	#############################################################################
1028	# the server's main()	1803	# the server's main()
1029		1804
		1805	sub cfg_load {
		1806	open my $fh, "<:utf8", cf::confdir . "/config"
		1807	or return;
		1808
		1809	local $/;
		1810	*CFG = YAML::Syck::Load <$fh>;
		1811	}
		1812
1030	sub main {	1813	sub main {
		1814	# we must not ever block the main coroutine
		1815	local $Coro::idle = sub {
		1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1817	(Coro::unblock_sub {
		1818	Event::one_event;
		1819	})->();
		1820	};
		1821
		1822	cfg_load;
1031	db_load;	1823	db_load;
1032	load_extensions;	1824	load_extensions;
1033	Event::loop;	1825	Event::loop;
1034	}	1826	}
1035		1827
1036	#############################################################################	1828	#############################################################################
1037	# initialisation	1829	# initialisation
1038		1830
1039	sub _perl_reload(&) {	1831	sub perl_reload() {
1040	my ($msg) = @_;	1832	# can/must only be called in main
		1833	if ($Coro::current != $Coro::main) {
		1834	warn "can only reload from main coroutine\n";
		1835	return;
		1836	}
1041		1837
1042	$msg->("reloading...");	1838	warn "reloading...";
		1839
		1840	local $FREEZE = 1;
		1841	cf::emergency_save;
1043		1842
1044	eval {	1843	eval {
		1844	# if anything goes wrong in here, we should simply crash as we already saved
		1845
1045	# cancel all watchers	1846	# cancel all watchers
1046	$_->cancel for Event::all_watchers;	1847	for (Event::all_watchers) {
		1848	$_->cancel if $_->data & WF_AUTOCANCEL;
		1849	}
		1850
		1851	# cancel all extension coros
		1852	$_->cancel for values %EXT_CORO;
		1853	%EXT_CORO = ();
1047		1854
1048	# unload all extensions	1855	# unload all extensions
1049	for (@exts) {	1856	for (@exts) {
1050	$msg->("unloading <$_>");	1857	warn "unloading <$_>";
1051	unload_extension $_;	1858	unload_extension $_;
1052	}	1859	}
1053		1860
1054	# unload all modules loaded from $LIBDIR	1861	# unload all modules loaded from $LIBDIR
1055	while (my ($k, $v) = each %INC) {	1862	while (my ($k, $v) = each %INC) {
1056	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1057		1864
1058	$msg->("removing <$k>");	1865	warn "removing <$k>";
1059	delete $INC{$k};	1866	delete $INC{$k};
1060		1867
1061	$k =~ s/\.pm$//;	1868	$k =~ s/\.pm$//;
1062	$k =~ s/\//::/g;	1869	$k =~ s/\//::/g;
1063		1870
…		…
1068	Symbol::delete_package $k;	1875	Symbol::delete_package $k;
1069	}	1876	}
1070		1877
1071	# sync database to disk	1878	# sync database to disk
1072	cf::db_sync;	1879	cf::db_sync;
		1880	IO::AIO::flush;
1073		1881
1074	# get rid of safe::, as good as possible	1882	# get rid of safe::, as good as possible
1075	Symbol::delete_package "safe::$_"	1883	Symbol::delete_package "safe::$_"
1076	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1077		1885
1078	# remove register_script_function callbacks	1886	# remove register_script_function callbacks
1079	# TODO	1887	# TODO
1080		1888
1081	# unload cf.pm "a bit"	1889	# unload cf.pm "a bit"
…		…
1084	# don't, removes xs symbols, too,	1892	# don't, removes xs symbols, too,
1085	# and global variables created in xs	1893	# and global variables created in xs
1086	#Symbol::delete_package __PACKAGE__;	1894	#Symbol::delete_package __PACKAGE__;
1087		1895
1088	# reload cf.pm	1896	# reload cf.pm
1089	$msg->("reloading cf.pm");	1897	warn "reloading cf.pm";
1090	require cf;	1898	require cf;
		1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1091		1900
1092	# load database again	1901	# load config and database again
		1902	cf::cfg_load;
1093	cf::db_load;	1903	cf::db_load;
1094		1904
1095	# load extensions	1905	# load extensions
1096	$msg->("load extensions");	1906	warn "load extensions";
1097	cf::load_extensions;	1907	cf::load_extensions;
1098		1908
1099	# reattach attachments to objects	1909	# reattach attachments to objects
1100	$msg->("reattach");	1910	warn "reattach";
1101	_global_reattach;	1911	_global_reattach;
1102	};	1912	};
1103	$msg->($@) if $@;
1104		1913
1105	$msg->("reloaded");	1914	if ($@) {
		1915	warn $@;
		1916	warn "error while reloading, exiting.";
		1917	exit 1;
		1918	}
		1919
		1920	warn "reloaded successfully";
1106	};	1921	};
1107		1922
1108	sub perl_reload() {	1923	#############################################################################
1109	_perl_reload {
1110	warn $_[0];
1111	print "$_[0]\n";
1112	};
1113	}
1114		1924
		1925	unless ($LINK_MAP) {
		1926	$LINK_MAP = cf::map::new;
		1927
		1928	$LINK_MAP->width (41);
		1929	$LINK_MAP->height (41);
		1930	$LINK_MAP->alloc;
		1931	$LINK_MAP->path ("{link}");
		1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		1934
		1935	# dirty hack because... archetypes are not yet loaded
		1936	Event->timer (
		1937	after => 2,
		1938	cb => sub {
		1939	$_[0]->w->cancel;
		1940
		1941	# provide some exits "home"
		1942	my $exit = cf::object::new "exit";
		1943
		1944	$exit->slaying ($EMERGENCY_POSITION->[0]);
		1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		1947
		1948	$LINK_MAP->insert ($exit->clone, 19, 19);
		1949	$LINK_MAP->insert ($exit->clone, 19, 20);
		1950	$LINK_MAP->insert ($exit->clone, 19, 21);
		1951	$LINK_MAP->insert ($exit->clone, 20, 19);
		1952	$LINK_MAP->insert ($exit->clone, 20, 21);
		1953	$LINK_MAP->insert ($exit->clone, 21, 19);
		1954	$LINK_MAP->insert ($exit->clone, 21, 20);
		1955	$LINK_MAP->insert ($exit->clone, 21, 21);
		1956
		1957	$exit->destroy;
		1958	});
		1959
		1960	$LINK_MAP->{deny_save} = 1;
		1961	$LINK_MAP->{deny_reset} = 1;
		1962
		1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		1964	}
		1965
		1966	register "<global>", __PACKAGE__;
		1967
1115	register_command "perl-reload", 0, sub {	1968	register_command "perl-reload" => sub {
1116	my ($who, $arg) = @_;	1969	my ($who, $arg) = @_;
1117		1970
1118	if ($who->flag (FLAG_WIZ)) {	1971	if ($who->flag (FLAG_WIZ)) {
		1972	$who->message ("start of reload.");
1119	_perl_reload {	1973	perl_reload;
1120	warn $_[0];	1974	$who->message ("end of reload.");
1121	$who->message ($_[0]);
1122	};
1123	}	1975	}
1124	};	1976	};
1125		1977
1126	register "<global>", __PACKAGE__;
1127
1128	unshift @INC, $LIBDIR;	1978	unshift @INC, $LIBDIR;
1129		1979
1130	$TICK_WATCHER = Event->timer (	1980	$TICK_WATCHER = Event->timer (
		1981	reentrant => 0,
1131	prio => 1,	1982	prio => 0,
1132	at => $NEXT_TICK || 1,	1983	at => $NEXT_TICK || $TICK,
		1984	data => WF_AUTOCANCEL,
1133	cb => sub {	1985	cb => sub {
		1986	unless ($FREEZE) {
1134	cf::server_tick; # one server iteration	1987	cf::server_tick; # one server iteration
		1988	$RUNTIME += $TICK;
		1989	}
1135		1990
1136	my $NOW = Event::time;
1137	$NEXT_TICK += $TICK;	1991	$NEXT_TICK += $TICK;
1138		1992
1139	# if we are delayed by four ticks, skip them all	1993	# if we are delayed by four ticks or more, skip them all
1140	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1141		1995
1142	$TICK_WATCHER->at ($NEXT_TICK);	1996	$TICK_WATCHER->at ($NEXT_TICK);
1143	$TICK_WATCHER->start;	1997	$TICK_WATCHER->start;
1144	},	1998	},
1145	);	1999	);
1146		2000
		2001	IO::AIO::max_poll_time $TICK * 0.2;
		2002
		2003	Event->io (
		2004	fd => IO::AIO::poll_fileno,
		2005	poll => 'r',
		2006	prio => 5,
		2007	data => WF_AUTOCANCEL,
		2008	cb => \&IO::AIO::poll_cb,
		2009	);
		2010
		2011	Event->timer (
		2012	data => WF_AUTOCANCEL,
		2013	after => 0,
		2014	interval => 10,
		2015	cb => sub {
		2016	(Coro::unblock_sub {
		2017	write_runtime
		2018	or warn "ERROR: unable to write runtime file: $!";
		2019	})->();
		2020	},
		2021	);
		2022
1147	1	2023	1
1148		2024

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