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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 1.112 by root, Mon Jan 1 13:31:47 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 { }, $class;
		293
		294	if ($path =~ s{^\?random/}{}) {
		295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		296	$self->{random} = cf::from_json $data;
		297	} else {
		298	if ($path =~ s{^~([^/]+)?}{}) {
		299	$self->{user_rel} = 1;
		300
		301	if (defined $1) {
		302	$self->{user} = $1;
		303	} elsif ($base =~ m{^~([^/]+)/}) {
		304	$self->{user} = $1;
		305	} else {
		306	warn "cannot resolve user-relative path without user <$path,$base>\n";
		307	}
		308	} elsif ($path =~ /^\//) {
		309	# already absolute
		310	} else {
		311	$base =~ s{[^/]+/?$}{};
		312	return $class->new ("$base/$path");
		313	}
		314
		315	for ($path) {
		316	redo if s{/\.?/}{/};
		317	redo if s{/[^/]+/\.\./}{/};
		318	}
		319	}
		320
		321	$self->{path} = $path;
		322
		323	$self
		324	}
		325
		326	# the name / primary key / in-game path
		327	sub as_string {
		328	my ($self) = @_;
		329
		330	$self->{user_rel} ? "~$self->{user}$self->{path}"
		331	: $self->{random} ? "?random/$self->{path}"
		332	: $self->{path}
		333	}
		334
		335	# the displayed name, this is a one way mapping
		336	sub visible_name {
		337	my ($self) = @_;
		338
		339	# if (my $rmp = $self->{random}) {
		340	# # todo: be more intelligent about this
		341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		342	# } else {
		343	$self->as_string
		344	# }
		345	}
		346
		347	# escape the /'s in the path
		348	sub _escaped_path {
		349	# ∕ is U+2215
		350	(my $path = $_[0]{path}) =~ s/\//∕/g;
		351	$path
		352	}
		353
		354	# the original (read-only) location
		355	sub load_path {
		356	my ($self) = @_;
		357
		358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		359	}
		360
		361	# the temporary/swap location
		362	sub save_path {
		363	my ($self) = @_;
		364
		365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		368	}
		369
		370	# the unique path, might be eq to save_path
		371	sub uniq_path {
		372	my ($self) = @_;
		373
		374	$self->{user_rel} || $self->{random}
		375	? undef
		376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		377	}
		378
		379	# return random map parameters, or undef
		380	sub random_map_params {
		381	my ($self) = @_;
		382
		383	$self->{random}
		384	}
		385
		386	# this is somewhat ugly, but style maps do need special treatment
		387	sub is_style_map {
		388	$_[0]{path} =~ m{^/styles/}
		389	}
		390
		391	package cf;
		392
		393	#############################################################################
		394
		395	=head2 ATTACHABLE OBJECTS
		396
		397	Many objects in crossfire are so-called attachable objects. That means you can
		398	attach callbacks/event handlers (a collection of which is called an "attachment")
		399	to it. All such attachable objects support the following methods.
		400
		401	In the following description, CLASS can be any of C<global>, C<object>
		402	C<player>, C<client> or C<map> (i.e. the attachable objects in
		403	crossfire+).
117		404
118	=over 4	405	=over 4
119		406
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...)	407	=item $attachable->attach ($attachment, key => $value...)
133		408
134	=item $map->detach ($attachment)	409	=item $attachable->detach ($attachment)
135		410
136	Attach/detach a pre-registered attachment to a map.	411	Attach/detach a pre-registered attachment to a specific object and give it
		412	the specified key/value pairs as arguments.
137		413
138	=item $bool = $object->attached ($name)	414	Example, attach a minesweeper attachment to the given object, making it a
		415	10x10 minesweeper game:
139		416
140	=item $bool = $player->attached ($name)	417	$obj->attach (minesweeper => width => 10, height => 10);
141		418
142	=item $bool = $map->attached ($name)	419	=item $bool = $attachable->attached ($name)
143		420
144	Checks wether the named attachment is currently attached to the object.	421	Checks wether the named attachment is currently attached to the object.
145		422
146	=item cf::attach_global ...	423	=item cf::CLASS->attach ...
147		424
148	Attach handlers for global events.	425	=item cf::CLASS->detach ...
149		426
150	This and all following C<attach_*>-functions expect any number of the	427	Define an anonymous attachment and attach it to all objects of the given
151	following handler/hook descriptions:	428	CLASS. See the next function for an explanation of its arguments.
		429
		430	You can attach to global events by using the C<cf::global> class.
		431
		432	Example, log all player logins:
		433
		434	cf::player->attach (
		435	on_login => sub {
		436	my ($pl) = @_;
		437	...
		438	},
		439	);
		440
		441	Example, attach to the jeweler skill:
		442
		443	cf::object->attach (
		444	type => cf::SKILL,
		445	subtype => cf::SK_JEWELER,
		446	on_use_skill => sub {
		447	my ($sk, $ob, $part, $dir, $msg) = @_;
		448	...
		449	},
		450	);
		451
		452	=item cf::CLASS::attachment $name, ...
		453
		454	Register an attachment by C<$name> through which attachable objects of the
		455	given CLASS can refer to this attachment.
		456
		457	Some classes such as crossfire maps and objects can specify attachments
		458	that are attached at load/instantiate time, thus the need for a name.
		459
		460	These calls expect any number of the following handler/hook descriptions:
152		461
153	=over 4	462	=over 4
154		463
155	=item prio => $number	464	=item prio => $number
156		465
…		…
158	by another C<prio> setting). Lower priority handlers get executed	467	by another C<prio> setting). Lower priority handlers get executed
159	earlier. The default priority is C<0>, and many built-in handlers are	468	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	469	registered at priority C<-1000>, so lower priorities should not be used
161	unless you know what you are doing.	470	unless you know what you are doing.
162		471
		472	=item type => $type
		473
		474	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		475	given type of objects only (the additional parameter C<subtype> can be
		476	used to further limit to the given subtype).
		477
163	=item on_I<event> => \&cb	478	=item on_I<event> => \&cb
164		479
165	Call the given code reference whenever the named event happens (event is	480	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	481	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	482	handlers are recognised generally depends on the type of object these
…		…
176	package and register them. Only handlers for eevents supported by the	491	package and register them. Only handlers for eevents supported by the
177	object/class are recognised.	492	object/class are recognised.
178		493
179	=back	494	=back
180		495
181	=item cf::attach_to_type $object_type, $subtype, ...	496	Example, define an attachment called "sockpuppet" that calls the given
		497	event handler when a monster attacks:
182		498
183	Attach handlers for a specific object type (e.g. TRANSPORT) and	499	cf::object::attachment sockpuppet =>
184	subtype. If C<$subtype> is zero or undef, matches all objects of the given	500	on_skill_attack => sub {
185	type.	501	my ($self, $victim) = @_;
186		502	...
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	}	503	}
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	504	}
408	}
409		505
410	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	506	=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		507
434	Just because you have a perl object does not mean that the corresponding	508	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	509	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	510	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	511	can be used to test for existence of the C object part without causing an
438	exception.	512	exception.
439		513
		514	=cut
		515
		516	# the following variables are defined in .xs and must not be re-created
		517	our @CB_GLOBAL = (); # registry for all global events
		518	our @CB_ATTACHABLE = (); # registry for all attachables
		519	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		520	our @CB_PLAYER = ();
		521	our @CB_CLIENT = ();
		522	our @CB_TYPE = (); # registry for type (cf-object class) based events
		523	our @CB_MAP = ();
		524
		525	my %attachment;
		526
		527	sub _attach_cb($$$$) {
		528	my ($registry, $event, $prio, $cb) = @_;
		529
		530	use sort 'stable';
		531
		532	$cb = [$prio, $cb];
		533
		534	@{$registry->[$event]} = sort
		535	{ $a->[0] cmp $b->[0] }
		536	@{$registry->[$event] || []}, $cb;
		537	}
		538
		539	# hack
		540	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		541
		542	# attach handles attaching event callbacks
		543	# the only thing the caller has to do is pass the correct
		544	# registry (== where the callback attaches to).
		545	sub _attach {
		546	my ($registry, $klass, @arg) = @_;
		547
		548	my $object_type;
		549	my $prio = 0;
		550	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		551
		552	#TODO: get rid of this hack
		553	if ($attachable_klass{$klass}) {
		554	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		555	}
		556
		557	while (@arg) {
		558	my $type = shift @arg;
		559
		560	if ($type eq "prio") {
		561	$prio = shift @arg;
		562
		563	} elsif ($type eq "type") {
		564	$object_type = shift @arg;
		565	$registry = $CB_TYPE[$object_type] ||= [];
		566
		567	} elsif ($type eq "subtype") {
		568	defined $object_type or Carp::croak "subtype specified without type";
		569	my $object_subtype = shift @arg;
		570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		571
		572	} elsif ($type eq "package") {
		573	my $pkg = shift @arg;
		574
		575	while (my ($name, $id) = each %cb_id) {
		576	if (my $cb = $pkg->can ($name)) {
		577	_attach_cb $registry, $id, $prio, $cb;
		578	}
		579	}
		580
		581	} elsif (exists $cb_id{$type}) {
		582	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		583
		584	} elsif (ref $type) {
		585	warn "attaching objects not supported, ignoring.\n";
		586
		587	} else {
		588	shift @arg;
		589	warn "attach argument '$type' not supported, ignoring.\n";
		590	}
		591	}
		592	}
		593
		594	sub _object_attach {
		595	my ($obj, $name, %arg) = @_;
		596
		597	return if exists $obj->{_attachment}{$name};
		598
		599	if (my $attach = $attachment{$name}) {
		600	my $registry = $obj->registry;
		601
		602	for (@$attach) {
		603	my ($klass, @attach) = @$_;
		604	_attach $registry, $klass, @attach;
		605	}
		606
		607	$obj->{$name} = \%arg;
		608	} else {
		609	warn "object uses attachment '$name' that is not available, postponing.\n";
		610	}
		611
		612	$obj->{_attachment}{$name} = undef;
		613	}
		614
		615	sub cf::attachable::attach {
		616	if (ref $_[0]) {
		617	_object_attach @_;
		618	} else {
		619	_attach shift->_attach_registry, @_;
		620	}
		621	};
		622
		623	# all those should be optimised
		624	sub cf::attachable::detach {
		625	my ($obj, $name) = @_;
		626
		627	if (ref $obj) {
		628	delete $obj->{_attachment}{$name};
		629	reattach ($obj);
		630	} else {
		631	Carp::croak "cannot, currently, detach class attachments";
		632	}
		633	};
		634
		635	sub cf::attachable::attached {
		636	my ($obj, $name) = @_;
		637
		638	exists $obj->{_attachment}{$name}
		639	}
		640
		641	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		642	eval "#line " . __LINE__ . " 'cf.pm'
		643	sub cf::\L$klass\E::_attach_registry {
		644	(\\\@CB_$klass, KLASS_$klass)
		645	}
		646
		647	sub cf::\L$klass\E::attachment {
		648	my \$name = shift;
		649
		650	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		651	}
		652	";
		653	die if $@;
		654	}
		655
		656	our $override;
		657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		658
		659	sub override {
		660	$override = 1;
		661	@invoke_results = ();
		662	}
		663
		664	sub do_invoke {
		665	my $event = shift;
		666	my $callbacks = shift;
		667
		668	@invoke_results = ();
		669
		670	local $override;
		671
		672	for (@$callbacks) {
		673	eval { &{$_->[1]} };
		674
		675	if ($@) {
		676	warn "$@";
		677	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		678	override;
		679	}
		680
		681	return 1 if $override;
		682	}
		683
		684	0
		685	}
		686
		687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		688
		689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		690
		691	Generate an object-specific event with the given arguments.
		692
		693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		694	removed in future versions), and there is no public API to access override
		695	results (if you must, access C<@cf::invoke_results> directly).
		696
440	=back	697	=back
441		698
442	=cut	699	=cut
443
444	*cf::object::valid =
445	*cf::player::valid =
446	*cf::map::valid = \&cf::_valid;
447		700
448	#############################################################################	701	#############################################################################
449	# object support	702	# object support
450		703
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 {	704	sub reattach {
		705	# basically do the same as instantiate, without calling instantiate
465	my ($obj) = @_;	706	my ($obj) = @_;
		707
466	my $registry = $obj->registry;	708	my $registry = $obj->registry;
467		709
468	@$registry = ();	710	@$registry = ();
469		711
470	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	712	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
471		713
472	for my $name (keys %{ $obj->{_attachment} || {} }) {	714	for my $name (keys %{ $obj->{_attachment} || {} }) {
473	if (my $attach = $attachment{$name}) {	715	if (my $attach = $attachment{$name}) {
474	for (@$attach) {	716	for (@$attach) {
475	my ($klass, @attach) = @$_;	717	my ($klass, @attach) = @$_;
476	_attach @$registry, $klass, @attach;	718	_attach $registry, $klass, @attach;
477	}	719	}
478	} else {	720	} else {
479	warn "object uses attachment '$name' that is not available, postponing.\n";	721	warn "object uses attachment '$name' that is not available, postponing.\n";
480	}	722	}
481	}	723	}
482	}	724	}
483		725
484	sub object_freezer_save {	726	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, $av);
529	}
530
531	()
532	}
533
534	attach_to_objects
535	prio => -1000000,	727	prio => -1000000,
		728	on_instantiate => sub {
		729	my ($obj, $data) = @_;
		730
		731	$data = from_json $data;
		732
		733	for (@$data) {
		734	my ($name, $args) = @$_;
		735
		736	$obj->attach ($name, %{$args || {} });
		737	}
		738	},
		739	on_reattach => \&reattach,
536	on_clone => sub {	740	on_clone => sub {
537	my ($src, $dst) = @_;	741	my ($src, $dst) = @_;
538		742
539	@{$dst->registry} = @{$src->registry};	743	@{$dst->registry} = @{$src->registry};
540		744
541	%$dst = %$src;	745	%$dst = %$src;
542		746
543	%{$dst->{_attachment}} = %{$src->{_attachment}}	747	%{$dst->{_attachment}} = %{$src->{_attachment}}
544	if exists $src->{_attachment};	748	if exists $src->{_attachment};
545	},	749	},
546	;	750	);
		751
		752	sub object_freezer_save {
		753	my ($filename, $rdata, $objs) = @_;
		754
		755	sync_job {
		756	if (length $$rdata) {
		757	warn sprintf "saving %s (%d,%d)\n",
		758	$filename, length $$rdata, scalar @$objs;
		759
		760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		761	chmod SAVE_MODE, $fh;
		762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		763	aio_fsync $fh;
		764	close $fh;
		765
		766	if (@$objs) {
		767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		768	chmod SAVE_MODE, $fh;
		769	my $data = Storable::nfreeze { version => 1, objs => $objs };
		770	aio_write $fh, 0, (length $data), $data, 0;
		771	aio_fsync $fh;
		772	close $fh;
		773	aio_rename "$filename.pst~", "$filename.pst";
		774	}
		775	} else {
		776	aio_unlink "$filename.pst";
		777	}
		778
		779	aio_rename "$filename~", $filename;
		780	} else {
		781	warn "FATAL: $filename~: $!\n";
		782	}
		783	} else {
		784	aio_unlink $filename;
		785	aio_unlink "$filename.pst";
		786	}
		787	}
		788	}
		789
		790	sub object_freezer_as_string {
		791	my ($rdata, $objs) = @_;
		792
		793	use Data::Dumper;
		794
		795	$$rdata . Dumper $objs
		796	}
		797
		798	sub object_thawer_load {
		799	my ($filename) = @_;
		800
		801	my ($data, $av);
		802
		803	(aio_load $filename, $data) >= 0
		804	or return;
		805
		806	unless (aio_stat "$filename.pst") {
		807	(aio_load "$filename.pst", $av) >= 0
		808	or return;
		809	$av = eval { (Storable::thaw <$av>)->{objs} };
		810	}
		811
		812	return ($data, $av);
		813	}
547		814
548	#############################################################################	815	#############################################################################
549	# old plug-in events	816	# command handling &c
550		817
551	sub inject_event {	818	=item cf::register_command $name => \&callback($ob,$args);
552	my $extension = shift;
553	my $event_code = shift;
554		819
555	my $cb = $hook[$event_code]{$extension}	820	Register a callback for execution when the client sends the user command
556	or return;	821	$name.
557		822
558	&$cb	823	=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		824
580	sub register_command {	825	sub register_command {
581	my ($name, $time, $cb) = @_;	826	my ($name, $cb) = @_;
582		827
583	my $caller = caller;	828	my $caller = caller;
584	#warn "registering command '$name/$time' to '$caller'";	829	#warn "registering command '$name/$time' to '$caller'";
585		830
586	push @{ $command{$name} }, [$time, $cb, $caller];	831	push @{ $COMMAND{$name} }, [$caller, $cb];
587	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
588	}	832	}
		833
		834	=item cf::register_extcmd $name => \&callback($pl,$packet);
		835
		836	Register a callbackf ro execution when the client sends an extcmd packet.
		837
		838	If the callback returns something, it is sent back as if reply was being
		839	called.
		840
		841	=cut
589		842
590	sub register_extcmd {	843	sub register_extcmd {
591	my ($name, $cb) = @_;	844	my ($name, $cb) = @_;
592		845
593	my $caller = caller;	846	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";	847	#warn "registering extcmd '$name' to '$caller'";
595		848
596	$extcmd{$name} = [$cb, $caller];	849	$EXTCMD{$name} = [$cb, $caller];
597	}	850	}
		851
		852	cf::player->attach (
		853	on_command => sub {
		854	my ($pl, $name, $params) = @_;
		855
		856	my $cb = $COMMAND{$name}
		857	or return;
		858
		859	for my $cmd (@$cb) {
		860	$cmd->[1]->($pl->ob, $params);
		861	}
		862
		863	cf::override;
		864	},
		865	on_extcmd => sub {
		866	my ($pl, $buf) = @_;
		867
		868	my $msg = eval { from_json $buf };
		869
		870	if (ref $msg) {
		871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		872	if (my %reply = $cb->[0]->($pl, $msg)) {
		873	$pl->ext_reply ($msg->{msgid}, %reply);
		874	}
		875	}
		876	} else {
		877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		878	}
		879
		880	cf::override;
		881	},
		882	);
598		883
599	sub register {	884	sub register {
600	my ($base, $pkg) = @_;	885	my ($base, $pkg) = @_;
601		886
602	#TODO	887	#TODO
…		…
621	. "#line 1 \"$path\"\n{\n"	906	. "#line 1 \"$path\"\n{\n"
622	. (do { local $/; <$fh> })	907	. (do { local $/; <$fh> })
623	. "\n};\n1";	908	. "\n};\n1";
624		909
625	eval $source	910	eval $source
626	or die "$path: $@";	911	or die $@ ? "$path: $@\n"
		912	: "extension disabled.\n";
627		913
628	push @exts, $pkg;	914	push @exts, $pkg;
629	$ext_pkg{$base} = $pkg;	915	$ext_pkg{$base} = $pkg;
630		916
631	# no strict 'refs';	917	# no strict 'refs';
…		…
644	# for my $idx (0 .. $#PLUGIN_EVENT) {	930	# for my $idx (0 .. $#PLUGIN_EVENT) {
645	# delete $hook[$idx]{$pkg};	931	# delete $hook[$idx]{$pkg};
646	# }	932	# }
647		933
648	# remove commands	934	# remove commands
649	for my $name (keys %command) {	935	for my $name (keys %COMMAND) {
650	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
651		937
652	if (@cb) {	938	if (@cb) {
653	$command{$name} = \@cb;	939	$COMMAND{$name} = \@cb;
654	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
655	} else {	940	} else {
656	delete $command{$name};
657	delete $COMMAND{"$name\000"};	941	delete $COMMAND{$name};
658	}	942	}
659	}	943	}
660		944
661	# remove extcmds	945	# remove extcmds
662	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
663	delete $extcmd{$name};	947	delete $EXTCMD{$name};
664	}	948	}
665		949
666	if (my $cb = $pkg->can ("unload")) {	950	if (my $cb = $pkg->can ("unload")) {
667	eval {	951	eval {
668	$cb->($pkg);	952	$cb->($pkg);
…		…
672		956
673	Symbol::delete_package $pkg;	957	Symbol::delete_package $pkg;
674	}	958	}
675		959
676	sub load_extensions {	960	sub load_extensions {
677	my $LIBDIR = maps_directory "perl";
678
679	for my $ext (<$LIBDIR/*.ext>) {	961	for my $ext (<$LIBDIR/*.ext>) {
680	next unless -r $ext;	962	next unless -r $ext;
681	eval {	963	eval {
682	load_extension $ext;	964	load_extension $ext;
683	1	965	1
684	} or warn "$ext not loaded: $@";	966	} or warn "$ext not loaded: $@";
685	}	967	}
686	}	968	}
687		969
688	#############################################################################	970	#############################################################################
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	971	# load/save/clean perl data associated with a map
714		972
715	*cf::mapsupport::on_clean = sub {	973	*cf::mapsupport::on_clean = sub {
716	my ($map) = @_;	974	my ($map) = @_;
717		975
…		…
719	defined $path or return;	977	defined $path or return;
720		978
721	unlink "$path.pst";	979	unlink "$path.pst";
722	};	980	};
723		981
724	attach_to_maps prio => -10000, package => cf::mapsupport::;	982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
725		983
726	#############################################################################	984	#############################################################################
727	# load/save perl data associated with player->ob objects	985	# load/save perl data associated with player->ob objects
728		986
729	sub all_objects(@) {	987	sub all_objects(@) {
730	@_, map all_objects ($_->inv), @_	988	@_, map all_objects ($_->inv), @_
731	}	989	}
732		990
733	# TODO: compatibility cruft, remove when no longer needed	991	# TODO: compatibility cruft, remove when no longer needed
734	attach_to_players	992	cf::player->attach (
735	on_load => sub {	993	on_load => sub {
736	my ($pl, $path) = @_;	994	my ($pl, $path) = @_;
737		995
738	for my $o (all_objects $pl->ob) {	996	for my $o (all_objects $pl->ob) {
739	if (my $value = $o->get_ob_key_value ("_perl_data")) {	997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
741		999
742	%$o = %{ Storable::thaw pack "H*", $value };	1000	%$o = %{ Storable::thaw pack "H*", $value };
743	}	1001	}
744	}	1002	}
745	},	1003	},
746	;	1004	);
747		1005
748	#############################################################################	1006	#############################################################################
749		1007
750	=head2 CORE EXTENSIONS	1008	=head2 CORE EXTENSIONS
751		1009
752	Functions and methods that extend core crossfire objects.	1010	Functions and methods that extend core crossfire objects.
		1011
		1012	=head3 cf::player
753		1013
754	=over 4	1014	=over 4
755		1015
756	=item cf::player::exists $login	1016	=item cf::player::exists $login
757		1017
…		…
762	sub cf::player::exists($) {	1022	sub cf::player::exists($) {
763	cf::player::find $_[0]	1023	cf::player::find $_[0]
764	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
765	}	1025	}
766		1026
		1027	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1028
		1029	Sends an ext reply to the player.
		1030
		1031	=cut
		1032
		1033	sub cf::player::ext_reply($$$%) {
		1034	my ($self, $id, %msg) = @_;
		1035
		1036	$msg{msgid} = $id;
		1037
		1038	$self->send ("ext " . to_json \%msg);
		1039	}
		1040
		1041	=back
		1042
		1043
		1044	=head3 cf::map
		1045
		1046	=over 4
		1047
		1048	=cut
		1049
		1050	package cf::map;
		1051
		1052	use Fcntl;
		1053	use Coro::AIO;
		1054
		1055	our $MAX_RESET = 7200;
		1056	our $DEFAULT_RESET = 3600;
		1057
		1058	sub generate_random_map {
		1059	my ($path, $rmp) = @_;
		1060
		1061	# mit "rum" bekleckern, nicht
		1062	cf::map::_create_random_map
		1063	$path,
		1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1067	$rmp->{exit_on_final_map},
		1068	$rmp->{xsize}, $rmp->{ysize},
		1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1074	(cf::region::find $rmp->{region})
		1075	}
		1076
		1077	# and all this just because we cannot iterate over
		1078	# all maps in C++...
		1079	sub change_all_map_light {
		1080	my ($change) = @_;
		1081
		1082	$_->change_map_light ($change) for values %cf::MAP;
		1083	}
		1084
		1085	sub try_load_header($) {
		1086	my ($path) = @_;
		1087
		1088	utf8::encode $path;
		1089	aio_open $path, O_RDONLY, 0
		1090	or return;
		1091
		1092	my $map = cf::map::new
		1093	or return;
		1094
		1095	$map->load_header ($path)
		1096	or return;
		1097
		1098	$map->{load_path} = $path;
		1099
		1100	$map
		1101	}
		1102
		1103	sub find_map {
		1104	my ($path, $origin) = @_;
		1105
		1106	#warn "find_map<$path,$origin>\n";#d#
		1107
		1108	$path = new cf::path $path, $origin && $origin->path;
		1109	my $key = $path->as_string;
		1110
		1111	$cf::MAP{$key} || do {
		1112	# do it the slow way
		1113	my $map = try_load_header $path->save_path;
		1114
		1115	if ($map) {
		1116	# safety
		1117	$map->{instantiate_time} = $cf::RUNTIME
		1118	if $map->{instantiate_time} > $cf::RUNTIME;
		1119	} else {
		1120	if (my $rmp = $path->random_map_params) {
		1121	$map = generate_random_map $key, $rmp;
		1122	} else {
		1123	$map = try_load_header $path->load_path;
		1124	}
		1125
		1126	$map or return;
		1127
		1128	$map->{load_original} = 1;
		1129	$map->{instantiate_time} = $cf::RUNTIME;
		1130	$map->instantiate;
		1131
		1132	# per-player maps become, after loading, normal maps
		1133	$map->per_player (0) if $path->{user_rel};
		1134	}
		1135
		1136	$map->path ($key);
		1137	$map->{path} = $path;
		1138	$map->last_access ($cf::RUNTIME);
		1139
		1140	if ($map->should_reset) {
		1141	$map->reset;
		1142	$map = find_map $path;
		1143	}
		1144
		1145	$cf::MAP{$key} = $map
		1146	}
		1147	}
		1148
		1149	sub load {
		1150	my ($self) = @_;
		1151
		1152	return if $self->in_memory != cf::MAP_SWAPPED;
		1153
		1154	$self->in_memory (cf::MAP_LOADING);
		1155
		1156	my $path = $self->{path};
		1157
		1158	$self->alloc;
		1159	$self->load_objects ($self->{load_path}, 1)
		1160	or return;
		1161
		1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1163	if delete $self->{load_original};
		1164
		1165	if (my $uniq = $path->uniq_path) {
		1166	utf8::encode $uniq;
		1167	if (aio_open $uniq, O_RDONLY, 0) {
		1168	$self->clear_unique_items;
		1169	$self->load_objects ($uniq, 0);
		1170	}
		1171	}
		1172
		1173	# now do the right thing for maps
		1174	$self->link_multipart_objects;
		1175
		1176	if ($self->{path}->is_style_map) {
		1177	$self->{deny_save} = 1;
		1178	$self->{deny_reset} = 1;
		1179	} else {
		1180	$self->fix_auto_apply;
		1181	$self->decay_objects;
		1182	$self->update_buttons;
		1183	$self->set_darkness_map;
		1184	$self->difficulty ($self->estimate_difficulty)
		1185	unless $self->difficulty;
		1186	$self->activate;
		1187	}
		1188
		1189	$self->in_memory (cf::MAP_IN_MEMORY);
		1190	}
		1191
		1192	sub load_map_sync {
		1193	my ($path, $origin) = @_;
		1194
		1195	#warn "load_map_sync<$path, $origin>\n";#d#
		1196
		1197	cf::sync_job {
		1198	my $map = cf::map::find_map $path, $origin
		1199	or return;
		1200	$map->load;
		1201	$map
		1202	}
		1203	}
		1204
		1205	sub save {
		1206	my ($self) = @_;
		1207
		1208	my $save = $self->{path}->save_path; utf8::encode $save;
		1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1210
		1211	$self->{last_save} = $cf::RUNTIME;
		1212
		1213	return unless $self->dirty;
		1214
		1215	$self->{load_path} = $save;
		1216
		1217	return if $self->{deny_save};
		1218
		1219	if ($uniq) {
		1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1221	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1222	} else {
		1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1224	}
		1225	}
		1226
		1227	sub swap_out {
		1228	my ($self) = @_;
		1229
		1230	return if $self->players;
		1231	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1232	return if $self->{deny_save};
		1233
		1234	$self->save;
		1235	$self->clear;
		1236	$self->in_memory (cf::MAP_SWAPPED);
		1237	}
		1238
		1239	sub reset_at {
		1240	my ($self) = @_;
		1241
		1242	# TODO: safety, remove and allow resettable per-player maps
		1243	return 1e100 if $self->{path}{user_rel};
		1244	return 1e100 if $self->{deny_reset};
		1245
		1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1247	my $to = $self->reset_timeout || $DEFAULT_RESET;
		1248	$to = $MAX_RESET if $to > $MAX_RESET;
		1249
		1250	$time + $to
		1251	}
		1252
		1253	sub should_reset {
		1254	my ($self) = @_;
		1255
		1256	$self->reset_at <= $cf::RUNTIME
		1257	}
		1258
		1259	sub unlink_save {
		1260	my ($self) = @_;
		1261
		1262	utf8::encode (my $save = $self->{path}->save_path);
		1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1265	}
		1266
		1267	sub reset {
		1268	my ($self) = @_;
		1269
		1270	return if $self->players;
		1271	return if $self->{path}{user_rel};#d#
		1272
		1273	warn "resetting map ", $self->path;#d#
		1274
		1275	delete $cf::MAP{$self->path};
		1276
		1277	$_->clear_links_to ($self) for values %cf::MAP;
		1278
		1279	$self->unlink_save;
		1280	$self->destroy;
		1281	}
		1282
		1283	sub customise_for {
		1284	my ($map, $ob) = @_;
		1285
		1286	if ($map->per_player) {
		1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1288	}
		1289
		1290	$map
		1291	}
		1292
		1293	sub emergency_save {
		1294	local $cf::FREEZE = 1;
		1295
		1296	warn "enter emergency map save\n";
		1297
		1298	cf::sync_job {
		1299	warn "begin emergency map save\n";
		1300	$_->save for values %cf::MAP;
		1301	};
		1302
		1303	warn "end emergency map save\n";
		1304	}
		1305
		1306	package cf;
		1307
		1308	=back
		1309
		1310
		1311	=head3 cf::object::player
		1312
		1313	=over 4
		1314
767	=item $player->reply ($npc, $msg[, $flags])	1315	=item $player_object->reply ($npc, $msg[, $flags])
768		1316
769	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1317	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
770	can be C<undef>. Does the right thing when the player is currently in a	1318	can be C<undef>. Does the right thing when the player is currently in a
771	dialogue with the given NPC character.	1319	dialogue with the given NPC character.
772		1320
773	=cut	1321	=cut
774		1322
775	# rough implementation of a future "reply" method that works	1323	# rough implementation of a future "reply" method that works
776	# with dialog boxes.	1324	# with dialog boxes.
		1325	#TODO: the first argument must go, split into a $npc->reply_to ( method
777	sub cf::object::player::reply($$$;$) {	1326	sub cf::object::player::reply($$$;$) {
778	my ($self, $npc, $msg, $flags) = @_;	1327	my ($self, $npc, $msg, $flags) = @_;
779		1328
780	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1329	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
781		1330
…		…
785	$msg = $npc->name . " says: $msg" if $npc;	1334	$msg = $npc->name . " says: $msg" if $npc;
786	$self->message ($msg, $flags);	1335	$self->message ($msg, $flags);
787	}	1336	}
788	}	1337	}
789		1338
790	=item $player->ext_reply ($msgid, $msgtype, %msg)	1339	=item $player_object->may ("access")
791		1340
792	Sends an ext reply to the player.	1341	Returns wether the given player is authorized to access resource "access"
		1342	(e.g. "command_wizcast").
793		1343
794	=cut	1344	=cut
795		1345
796	sub cf::player::ext_reply($$$%) {	1346	sub cf::object::player::may {
		1347	my ($self, $access) = @_;
		1348
		1349	$self->flag (cf::FLAG_WIZ) ||
		1350	(ref $cf::CFG{"may_$access"}
		1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1352	: $cf::CFG{"may_$access"})
		1353	}
		1354
		1355	sub cf::object::player::enter_link {
		1356	my ($self) = @_;
		1357
		1358	return if $self->map == $LINK_MAP;
		1359
		1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1361	if $self->map;
		1362
		1363	$self->enter_map ($LINK_MAP, 20, 20);
		1364	$self->deactivate_recursive;
		1365	}
		1366
		1367	sub cf::object::player::leave_link {
		1368	my ($self, $map, $x, $y) = @_;
		1369
		1370	my $link_pos = delete $self->{_link_pos};
		1371
		1372	unless ($map) {
		1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1374
		1375	# restore original map position
		1376	($map, $x, $y) = @{ $link_pos || [] };
		1377	$map = cf::map::find_map $map;
		1378
		1379	unless ($map) {
		1380	($map, $x, $y) = @$EMERGENCY_POSITION;
		1381	$map = cf::map::find_map $map
		1382	or die "FATAL: cannot load emergency map\n";
		1383	}
		1384	}
		1385
		1386	($x, $y) = (-1, -1)
		1387	unless (defined $x) && (defined $y);
		1388
		1389	# use -1 or undef as default coordinates, not 0, 0
		1390	($x, $y) = ($map->enter_x, $map->enter_y)
		1391	if $x <=0 && $y <= 0;
		1392
		1393	$map->load;
		1394
		1395	$self->activate_recursive;
		1396	$self->enter_map ($map, $x, $y);
		1397	}
		1398
		1399	=item $player_object->goto_map ($map, $x, $y)
		1400
		1401	=cut
		1402
		1403	sub cf::object::player::goto_map {
		1404	my ($self, $path, $x, $y) = @_;
		1405
		1406	$self->enter_link;
		1407
		1408	(Coro::async {
		1409	$path = new cf::path $path;
		1410
		1411	my $map = cf::map::find_map $path->as_string;
		1412	$map = $map->customise_for ($self) if $map;
		1413
		1414	warn "entering ", $map->path, " at ($x, $y)\n"
		1415	if $map;
		1416
		1417	$self->leave_link ($map, $x, $y);
		1418	})->prio (1);
		1419	}
		1420
		1421	=item $player_object->enter_exit ($exit_object)
		1422
		1423	=cut
		1424
		1425	sub parse_random_map_params {
		1426	my ($spec) = @_;
		1427
		1428	my $rmp = { # defaults
		1429	xsize => 10,
		1430	ysize => 10,
		1431	};
		1432
		1433	for (split /\n/, $spec) {
		1434	my ($k, $v) = split /\s+/, $_, 2;
		1435
		1436	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1437	}
		1438
		1439	$rmp
		1440	}
		1441
		1442	sub prepare_random_map {
		1443	my ($exit) = @_;
		1444
		1445	# all this does is basically replace the /! path by
		1446	# a new random map path (?random/...) with a seed
		1447	# that depends on the exit object
		1448
		1449	my $rmp = parse_random_map_params $exit->msg;
		1450
		1451	if ($exit->map) {
		1452	$rmp->{region} = $exit->map->region_name;
		1453	$rmp->{origin_map} = $exit->map->path;
		1454	$rmp->{origin_x} = $exit->x;
		1455	$rmp->{origin_y} = $exit->y;
		1456	}
		1457
		1458	$rmp->{random_seed} ||= $exit->random_seed;
		1459
		1460	my $data = cf::to_json $rmp;
		1461	my $md5 = Digest::MD5::md5_hex $data;
		1462
		1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1464	aio_write $fh, 0, (length $data), $data, 0;
		1465
		1466	$exit->slaying ("?random/$md5");
		1467	$exit->msg (undef);
		1468	}
		1469	}
		1470
		1471	sub cf::object::player::enter_exit {
797	my ($self, $id, %msg) = @_;	1472	my ($self, $exit) = @_;
798		1473
799	$msg{msgid} = $id;	1474	return unless $self->type == cf::PLAYER;
800		1475
801	$self->send ("ext " . to_json \%msg);	1476	$self->enter_link;
		1477
		1478	(Coro::async {
		1479	unless (eval {
		1480
		1481	prepare_random_map $exit
		1482	if $exit->slaying eq "/!";
		1483
		1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1486
		1487	1;
		1488	}) {
		1489	$self->message ("Something went wrong deep within the crossfire server. "
		1490	. "I'll try to bring you back to the map you were before. "
		1491	. "Please report this to the dungeon master",
		1492	cf::NDI_UNIQUE | cf::NDI_RED);
		1493
		1494	warn "ERROR in enter_exit: $@";
		1495	$self->leave_link;
		1496	}
		1497	})->prio (1);
802	}	1498	}
		1499
		1500	=head3 cf::client
		1501
		1502	=over 4
		1503
		1504	=item $client->send_drawinfo ($text, $flags)
		1505
		1506	Sends a drawinfo packet to the client. Circumvents output buffering so
		1507	should not be used under normal circumstances.
		1508
		1509	=cut
		1510
		1511	sub cf::client::send_drawinfo {
		1512	my ($self, $text, $flags) = @_;
		1513
		1514	utf8::encode $text;
		1515	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1516	}
		1517
		1518
		1519	=item $success = $client->query ($flags, "text", \&cb)
		1520
		1521	Queues a query to the client, calling the given callback with
		1522	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1523	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1524
		1525	Queries can fail, so check the return code. Or don't, as queries will become
		1526	reliable at some point in the future.
		1527
		1528	=cut
		1529
		1530	sub cf::client::query {
		1531	my ($self, $flags, $text, $cb) = @_;
		1532
		1533	return unless $self->state == ST_PLAYING
		1534	|| $self->state == ST_SETUP
		1535	|| $self->state == ST_CUSTOM;
		1536
		1537	$self->state (ST_CUSTOM);
		1538
		1539	utf8::encode $text;
		1540	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1541
		1542	$self->send_packet ($self->{query_queue}[0][0])
		1543	if @{ $self->{query_queue} } == 1;
		1544	}
		1545
		1546	cf::client->attach (
		1547	on_reply => sub {
		1548	my ($ns, $msg) = @_;
		1549
		1550	# this weird shuffling is so that direct followup queries
		1551	# get handled first
		1552	my $queue = delete $ns->{query_queue};
		1553
		1554	(shift @$queue)->[1]->($msg);
		1555
		1556	push @{ $ns->{query_queue} }, @$queue;
		1557
		1558	if (@{ $ns->{query_queue} } == @$queue) {
		1559	if (@$queue) {
		1560	$ns->send_packet ($ns->{query_queue}[0][0]);
		1561	} else {
		1562	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1563	}
		1564	}
		1565	},
		1566	);
		1567
		1568	=item $client->coro (\&cb)
		1569
		1570	Create a new coroutine, running the specified callback. The coroutine will
		1571	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1572	or loss of connection).
		1573
		1574	=cut
		1575
		1576	sub cf::client::coro {
		1577	my ($self, $cb) = @_;
		1578
		1579	my $coro; $coro = async {
		1580	eval {
		1581	$cb->();
		1582	};
		1583	warn $@ if $@;
		1584	};
		1585
		1586	$coro->on_destroy (sub {
		1587	delete $self->{_coro}{$coro+0};
		1588	});
		1589
		1590	$self->{_coro}{$coro+0} = $coro;
		1591
		1592	$coro
		1593	}
		1594
		1595	cf::client->attach (
		1596	on_destroy => sub {
		1597	my ($ns) = @_;
		1598
		1599	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1600	},
		1601	);
803		1602
804	=back	1603	=back
805		1604
806	=cut
807
808	#############################################################################
809		1605
810	=head2 SAFE SCRIPTING	1606	=head2 SAFE SCRIPTING
811		1607
812	Functions that provide a safe environment to compile and execute	1608	Functions that provide a safe environment to compile and execute
813	snippets of perl code without them endangering the safety of the server	1609	snippets of perl code without them endangering the safety of the server
814	itself. Looping constructs, I/O operators and other built-in functionality	1610	itself. Looping constructs, I/O operators and other built-in functionality
815	is not available in the safe scripting environment, and the number of	1611	is not available in the safe scripting environment, and the number of
816	functions and methods that cna be called is greatly reduced.	1612	functions and methods that can be called is greatly reduced.
817		1613
818	=cut	1614	=cut
819		1615
820	our $safe = new Safe "safe";	1616	our $safe = new Safe "safe";
821	our $safe_hole = new Safe::Hole;	1617	our $safe_hole = new Safe::Hole;
…		…
828		1624
829	=pod	1625	=pod
830		1626
831	The following fucntions and emthods are available within a safe environment:	1627	The following fucntions and emthods are available within a safe environment:
832		1628
833	cf::object contr pay_amount pay_player	1629	cf::object contr pay_amount pay_player map
834	cf::object::player player	1630	cf::object::player player
835	cf::player peaceful	1631	cf::player peaceful
		1632	cf::map trigger
836		1633
837	=cut	1634	=cut
838		1635
839	for (	1636	for (
840	["cf::object" => qw(contr pay_amount pay_player)],	1637	["cf::object" => qw(contr pay_amount pay_player map)],
841	["cf::object::player" => qw(player)],	1638	["cf::object::player" => qw(player)],
842	["cf::player" => qw(peaceful)],	1639	["cf::player" => qw(peaceful)],
		1640	["cf::map" => qw(trigger)],
843	) {	1641	) {
844	no strict 'refs';	1642	no strict 'refs';
845	my ($pkg, @funs) = @$_;	1643	my ($pkg, @funs) = @$_;
846	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1644	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
847	for @funs;	1645	for @funs;
…		…
912	*{"safe::$fun"} = $safe_hole->wrap ($cb);	1710	*{"safe::$fun"} = $safe_hole->wrap ($cb);
913	}	1711	}
914		1712
915	=back	1713	=back
916		1714
		1715	=cut
		1716
917	#############################################################################	1717	#############################################################################
918		1718
919	=head2 EXTENSION DATABASE SUPPORT	1719	=head2 EXTENSION DATABASE SUPPORT
920		1720
921	Crossfire maintains a very simple database for extension use. It can	1721	Crossfire maintains a very simple database for extension use. It can
…		…
955		1755
956	Immediately write the database to disk I<if it is dirty>.	1756	Immediately write the database to disk I<if it is dirty>.
957		1757
958	=cut	1758	=cut
959		1759
		1760	our $DB;
		1761
960	{	1762	{
961	my $db;
962	my $path = cf::localdir . "/database.pst";	1763	my $path = cf::localdir . "/database.pst";
963		1764
964	sub db_load() {	1765	sub db_load() {
965	warn "loading database $path\n";#d# remove later	1766	warn "loading database $path\n";#d# remove later
966	$db = stat $path ? Storable::retrieve $path : { };	1767	$DB = stat $path ? Storable::retrieve $path : { };
967	}	1768	}
968		1769
969	my $pid;	1770	my $pid;
970		1771
971	sub db_save() {	1772	sub db_save() {
972	warn "saving database $path\n";#d# remove later	1773	warn "saving database $path\n";#d# remove later
973	waitpid $pid, 0 if $pid;	1774	waitpid $pid, 0 if $pid;
974	if (0 == ($pid = fork)) {	1775	if (0 == ($pid = fork)) {
975	$db->{_meta}{version} = 1;	1776	$DB->{_meta}{version} = 1;
976	Storable::nstore $db, "$path~";	1777	Storable::nstore $DB, "$path~";
977	rename "$path~", $path;	1778	rename "$path~", $path;
978	cf::_exit 0 if defined $pid;	1779	cf::_exit 0 if defined $pid;
979	}	1780	}
980	}	1781	}
981		1782
…		…
984	sub db_sync() {	1785	sub db_sync() {
985	db_save if $dirty;	1786	db_save if $dirty;
986	undef $dirty;	1787	undef $dirty;
987	}	1788	}
988		1789
989	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
990	db_sync;	1791	db_sync;
991	});	1792	});
992		1793
993	sub db_dirty() {	1794	sub db_dirty() {
994	$dirty = 1;	1795	$dirty = 1;
995	$idle->start;	1796	$idle->start;
996	}	1797	}
997		1798
998	sub db_get($;$) {	1799	sub db_get($;$) {
999	@_ >= 2	1800	@_ >= 2
1000	? $db->{$_[0]}{$_[1]}	1801	? $DB->{$_[0]}{$_[1]}
1001	: ($db->{$_[0]} ||= { })	1802	: ($DB->{$_[0]} ||= { })
1002	}	1803	}
1003		1804
1004	sub db_put($$;$) {	1805	sub db_put($$;$) {
1005	if (@_ >= 3) {	1806	if (@_ >= 3) {
1006	$db->{$_[0]}{$_[1]} = $_[2];	1807	$DB->{$_[0]}{$_[1]} = $_[2];
1007	} else {	1808	} else {
1008	$db->{$_[0]} = $_[1];	1809	$DB->{$_[0]} = $_[1];
1009	}	1810	}
1010	db_dirty;	1811	db_dirty;
1011	}	1812	}
1012		1813
1013	attach_global	1814	cf::global->attach (
1014	prio => 10000,	1815	prio => 10000,
1015	on_cleanup => sub {	1816	on_cleanup => sub {
1016	db_sync;	1817	db_sync;
1017	},	1818	},
1018	;	1819	);
1019	}	1820	}
1020		1821
1021	#############################################################################	1822	#############################################################################
1022	# the server's main()	1823	# the server's main()
1023		1824
		1825	sub cfg_load {
		1826	open my $fh, "<:utf8", cf::confdir . "/config"
		1827	or return;
		1828
		1829	local $/;
		1830	*CFG = YAML::Syck::Load <$fh>;
		1831	}
		1832
1024	sub main {	1833	sub main {
		1834	# we must not ever block the main coroutine
		1835	local $Coro::idle = sub {
		1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1837	(Coro::unblock_sub {
		1838	Event::one_event;
		1839	})->();
		1840	};
		1841
		1842	cfg_load;
1025	db_load;	1843	db_load;
1026	load_extensions;	1844	load_extensions;
1027	Event::loop;	1845	Event::loop;
1028	}	1846	}
1029		1847
1030	#############################################################################	1848	#############################################################################
1031	# initialisation	1849	# initialisation
1032		1850
1033	sub _perl_reload(&) {	1851	sub reload() {
1034	my ($msg) = @_;	1852	# can/must only be called in main
		1853	if ($Coro::current != $Coro::main) {
		1854	warn "can only reload from main coroutine\n";
		1855	return;
		1856	}
1035		1857
1036	$msg->("reloading...");	1858	warn "reloading...";
		1859
		1860	local $FREEZE = 1;
		1861	cf::emergency_save;
1037		1862
1038	eval {	1863	eval {
		1864	# if anything goes wrong in here, we should simply crash as we already saved
		1865
1039	# cancel all watchers	1866	# cancel all watchers
1040	$_->cancel for Event::all_watchers;	1867	for (Event::all_watchers) {
		1868	$_->cancel if $_->data & WF_AUTOCANCEL;
		1869	}
		1870
		1871	# cancel all extension coros
		1872	$_->cancel for values %EXT_CORO;
		1873	%EXT_CORO = ();
1041		1874
1042	# unload all extensions	1875	# unload all extensions
1043	for (@exts) {	1876	for (@exts) {
1044	$msg->("unloading <$_>");	1877	warn "unloading <$_>";
1045	unload_extension $_;	1878	unload_extension $_;
1046	}	1879	}
1047		1880
1048	# unload all modules loaded from $LIBDIR	1881	# unload all modules loaded from $LIBDIR
1049	while (my ($k, $v) = each %INC) {	1882	while (my ($k, $v) = each %INC) {
1050	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1051		1884
1052	$msg->("removing <$k>");	1885	warn "removing <$k>";
1053	delete $INC{$k};	1886	delete $INC{$k};
1054		1887
1055	$k =~ s/\.pm$//;	1888	$k =~ s/\.pm$//;
1056	$k =~ s/\//::/g;	1889	$k =~ s/\//::/g;
1057		1890
…		…
1062	Symbol::delete_package $k;	1895	Symbol::delete_package $k;
1063	}	1896	}
1064		1897
1065	# sync database to disk	1898	# sync database to disk
1066	cf::db_sync;	1899	cf::db_sync;
		1900	IO::AIO::flush;
1067		1901
1068	# get rid of safe::, as good as possible	1902	# get rid of safe::, as good as possible
1069	Symbol::delete_package "safe::$_"	1903	Symbol::delete_package "safe::$_"
1070	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1071		1905
1072	# remove register_script_function callbacks	1906	# remove register_script_function callbacks
1073	# TODO	1907	# TODO
1074		1908
1075	# unload cf.pm "a bit"	1909	# unload cf.pm "a bit"
…		…
1078	# don't, removes xs symbols, too,	1912	# don't, removes xs symbols, too,
1079	# and global variables created in xs	1913	# and global variables created in xs
1080	#Symbol::delete_package __PACKAGE__;	1914	#Symbol::delete_package __PACKAGE__;
1081		1915
1082	# reload cf.pm	1916	# reload cf.pm
1083	$msg->("reloading cf.pm");	1917	warn "reloading cf.pm";
1084	require cf;	1918	require cf;
		1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1085		1920
1086	# load database again	1921	# load config and database again
		1922	cf::cfg_load;
1087	cf::db_load;	1923	cf::db_load;
1088		1924
1089	# load extensions	1925	# load extensions
1090	$msg->("load extensions");	1926	warn "load extensions";
1091	cf::load_extensions;	1927	cf::load_extensions;
1092		1928
1093	# reattach attachments to objects	1929	# reattach attachments to objects
1094	$msg->("reattach");	1930	warn "reattach";
1095	_global_reattach;	1931	_global_reattach;
1096	};	1932	};
1097	$msg->($@) if $@;
1098		1933
1099	$msg->("reloaded");	1934	if ($@) {
		1935	warn $@;
		1936	warn "error while reloading, exiting.";
		1937	exit 1;
		1938	}
		1939
		1940	warn "reloaded successfully";
1100	};	1941	};
1101		1942
1102	sub perl_reload() {	1943	#############################################################################
1103	_perl_reload {
1104	warn $_[0];
1105	print "$_[0]\n";
1106	};
1107	}
1108		1944
		1945	unless ($LINK_MAP) {
		1946	$LINK_MAP = cf::map::new;
		1947
		1948	$LINK_MAP->width (41);
		1949	$LINK_MAP->height (41);
		1950	$LINK_MAP->alloc;
		1951	$LINK_MAP->path ("{link}");
		1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		1954
		1955	# dirty hack because... archetypes are not yet loaded
		1956	Event->timer (
		1957	after => 2,
		1958	cb => sub {
		1959	$_[0]->w->cancel;
		1960
		1961	# provide some exits "home"
		1962	my $exit = cf::object::new "exit";
		1963
		1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
		1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		1967
		1968	$LINK_MAP->insert ($exit->clone, 19, 19);
		1969	$LINK_MAP->insert ($exit->clone, 19, 20);
		1970	$LINK_MAP->insert ($exit->clone, 19, 21);
		1971	$LINK_MAP->insert ($exit->clone, 20, 19);
		1972	$LINK_MAP->insert ($exit->clone, 20, 21);
		1973	$LINK_MAP->insert ($exit->clone, 21, 19);
		1974	$LINK_MAP->insert ($exit->clone, 21, 20);
		1975	$LINK_MAP->insert ($exit->clone, 21, 21);
		1976
		1977	$exit->destroy;
		1978	});
		1979
		1980	$LINK_MAP->{deny_save} = 1;
		1981	$LINK_MAP->{deny_reset} = 1;
		1982
		1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		1984	}
		1985
		1986	register "<global>", __PACKAGE__;
		1987
1109	register_command "perl-reload", 0, sub {	1988	register_command "reload" => sub {
1110	my ($who, $arg) = @_;	1989	my ($who, $arg) = @_;
1111		1990
1112	if ($who->flag (FLAG_WIZ)) {	1991	if ($who->flag (FLAG_WIZ)) {
1113	_perl_reload {	1992	$who->message ("start of reload.");
1114	warn $_[0];	1993	reload;
1115	$who->message ($_[0]);	1994	$who->message ("end of reload.");
1116	};
1117	}	1995	}
1118	};	1996	};
1119		1997
1120	register "<global>", __PACKAGE__;
1121
1122	unshift @INC, $LIBDIR;	1998	unshift @INC, $LIBDIR;
1123		1999
1124	$TICK_WATCHER = Event->timer (	2000	$TICK_WATCHER = Event->timer (
		2001	reentrant => 0,
1125	prio => 1,	2002	prio => 0,
1126	at => $NEXT_TICK || 1,	2003	at => $NEXT_TICK || $TICK,
		2004	data => WF_AUTOCANCEL,
1127	cb => sub {	2005	cb => sub {
		2006	unless ($FREEZE) {
1128	cf::server_tick; # one server iteration	2007	cf::server_tick; # one server iteration
		2008	$RUNTIME += $TICK;
		2009	}
1129		2010
1130	my $NOW = Event::time;
1131	$NEXT_TICK += $TICK;	2011	$NEXT_TICK += $TICK;
1132		2012
1133	# if we are delayed by four ticks, skip them all	2013	# if we are delayed by four ticks or more, skip them all
1134	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1135		2015
1136	$TICK_WATCHER->at ($NEXT_TICK);	2016	$TICK_WATCHER->at ($NEXT_TICK);
1137	$TICK_WATCHER->start;	2017	$TICK_WATCHER->start;
1138	},	2018	},
1139	);	2019	);
1140		2020
		2021	IO::AIO::max_poll_time $TICK * 0.2;
		2022
		2023	Event->io (
		2024	fd => IO::AIO::poll_fileno,
		2025	poll => 'r',
		2026	prio => 5,
		2027	data => WF_AUTOCANCEL,
		2028	cb => \&IO::AIO::poll_cb,
		2029	);
		2030
		2031	Event->timer (
		2032	data => WF_AUTOCANCEL,
		2033	after => 0,
		2034	interval => 10,
		2035	cb => sub {
		2036	(Coro::unblock_sub {
		2037	write_runtime
		2038	or warn "ERROR: unable to write runtime file: $!";
		2039	})->();
		2040	},
		2041	);
		2042
1141	1	2043	1
1142		2044

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