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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.76 by root, Mon Oct 2 15:28:36 2006 UTC vs.
Revision 1.112 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 ();
10	use YAML::Syck ();	23	use YAML::Syck ();
11	use Time::HiRes;	24	use Time::HiRes;
12	use Event;	25
13	$Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
14		27
15	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
16	$YAML::Syck::ImplicitUnicode = 1;	29	$YAML::Syck::ImplicitUnicode = 1;
17		30
18	use strict;	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
19		32
20	_init_vars;	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
21		34
22	our %COMMAND = ();	35	our %COMMAND = ();
		36	our %COMMAND_TIME = ();
		37	our %EXTCMD = ();
		38
23	our @EVENT;	39	our @EVENT;
24	our $LIBDIR = maps_directory "perl";	40	our $LIBDIR = datadir . "/ext";
25		41
26	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
27	our $TICK_WATCHER;	43	our $TICK_WATCHER;
28	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
29		46
30	our %CFG;	47	our %CFG;
31		48
32	our $uptime;	49	our $UPTIME; $UPTIME ||= time;
		50	our $RUNTIME;
33		51
34	$uptime ||= time;	52	our %MAP; # all maps
		53	our $LINK_MAP; # the special {link} map
		54	our $FREEZE;
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO;
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		63	open my $fh, "<", cf::localdir . "/runtime"
		64	or die "unable to read runtime file: $!";
		65	$RUNTIME = <$fh> + 0.;
		66	}
		67
		68	mkdir cf::localdir;
		69	mkdir cf::localdir . "/" . cf::playerdir;
		70	mkdir cf::localdir . "/" . cf::tmpdir;
		71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
		73
		74	# a special map that is always available
		75	our $LINK_MAP;
		76
		77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
35		78
36	#############################################################################	79	#############################################################################
37		80
38	=head2 GLOBAL VARIABLES	81	=head2 GLOBAL VARIABLES
39		82
40	=over 4	83	=over 4
		84
		85	=item $cf::UPTIME
		86
		87	The timestamp of the server start (so not actually an uptime).
		88
		89	=item $cf::RUNTIME
		90
		91	The time this server has run, starts at 0 and is increased by $cf::TICK on
		92	every server tick.
41		93
42	=item $cf::LIBDIR	94	=item $cf::LIBDIR
43		95
44	The perl library directory, where extensions and cf-specific modules can	96	The perl library directory, where extensions and cf-specific modules can
45	be found. It will be added to C<@INC> automatically.	97	be found. It will be added to C<@INC> automatically.
		98
		99	=item $cf::NOW
		100
		101	The time of the last (current) server tick.
46		102
47	=item $cf::TICK	103	=item $cf::TICK
48		104
49	The interval between server ticks, in seconds.	105	The interval between server ticks, in seconds.
50		106
…		…
58	=cut	114	=cut
59		115
60	BEGIN {	116	BEGIN {
61	*CORE::GLOBAL::warn = sub {	117	*CORE::GLOBAL::warn = sub {
62	my $msg = join "", @_;	118	my $msg = join "", @_;
		119	utf8::encode $msg;
		120
63	$msg .= "\n"	121	$msg .= "\n"
64	unless $msg =~ /\n$/;	122	unless $msg =~ /\n$/;
65		123
66	print STDERR "cfperl: $msg";
67	LOG llevError, "cfperl: $msg";	124	LOG llevError, "cfperl: $msg";
68	};	125	};
69	}	126	}
70		127
		128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
71	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
72		134
73	# we bless all objects into (empty) derived classes to force a method lookup	135	# we bless all objects into (empty) derived classes to force a method lookup
74	# within the Safe compartment.	136	# within the Safe compartment.
75	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	137	for my $pkg (qw(
		138	cf::global cf::attachable
		139	cf::object cf::object::player
		140	cf::client cf::player
		141	cf::arch cf::living
		142	cf::map cf::party cf::region
		143	)) {
76	no strict 'refs';	144	no strict 'refs';
77	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
78	}	146	}
79		147
80	$Event::DIED = sub {	148	$Event::DIED = sub {
…		…
82	};	150	};
83		151
84	my %ext_pkg;	152	my %ext_pkg;
85	my @exts;	153	my @exts;
86	my @hook;	154	my @hook;
87	my %command;
88	my %extcmd;
89		155
90	=head2 UTILITY FUNCTIONS	156	=head2 UTILITY FUNCTIONS
91		157
92	=over 4	158	=over 4
93		159
…		…
115	sub to_json($) {	181	sub to_json($) {
116	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
117	JSON::Syck::Dump $_[0]	183	JSON::Syck::Dump $_[0]
118	}	184	}
119		185
		186	=item cf::sync_job { BLOCK }
		187
		188	The design of crossfire+ requires that the main coro ($Coro::main) is
		189	always able to handle events or runnable, as crossfire+ is only partly
		190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		191
		192	If it must be done, put the blocking parts into C<sync_job>. This will run
		193	the given BLOCK in another coroutine while waiting for the result. The
		194	server will be frozen during this time, so the block should either finish
		195	fast or be very important.
		196
		197	=cut
		198
		199	sub sync_job(&) {
		200	my ($job) = @_;
		201
		202	if ($Coro::current == $Coro::main) {
		203	# this is the main coro, too bad, we have to block
		204	# till the operation succeeds, freezing the server :/
		205
		206	# TODO: use suspend/resume instead
		207	# (but this is cancel-safe)
		208	local $FREEZE = 1;
		209
		210	my $busy = 1;
		211	my @res;
		212
		213	(Coro::async {
		214	@res = eval { $job->() };
		215	warn $@ if $@;
		216	undef $busy;
		217	})->prio (Coro::PRIO_MAX);
		218
		219	while ($busy) {
		220	Coro::cede_notself;
		221	Event::one_event unless Coro::nready;
		222	}
		223
		224	wantarray ? @res : $res[0]
		225	} else {
		226	# we are in another coroutine, how wonderful, everything just works
		227
		228	$job->()
		229	}
		230	}
		231
		232	=item $coro = cf::coro { BLOCK }
		233
		234	Creates and returns a new coro. This coro is automcatially being canceled
		235	when the extension calling this is being unloaded.
		236
		237	=cut
		238
		239	sub coro(&) {
		240	my $cb = shift;
		241
		242	my $coro; $coro = async {
		243	eval {
		244	$cb->();
		245	};
		246	warn $@ if $@;
		247	};
		248
		249	$coro->on_destroy (sub {
		250	delete $EXT_CORO{$coro+0};
		251	});
		252	$EXT_CORO{$coro+0} = $coro;
		253
		254	$coro
		255	}
		256
		257	sub write_runtime {
		258	my $runtime = cf::localdir . "/runtime";
		259
		260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		261	or return;
		262
		263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		265	and return;
		266
		267	aio_fsync $fh
		268	and return;
		269
		270	close $fh
		271	or return;
		272
		273	aio_rename "$runtime~", $runtime
		274	and return;
		275
		276	1
		277	}
		278
120	=back	279	=back
121		280
122	=cut	281	=cut
123		282
124	#############################################################################	283	#############################################################################
125		284
126	=head2 EVENTS AND OBJECT ATTACHMENTS	285	package cf::path;
		286
		287	sub new {
		288	my ($class, $path, $base) = @_;
		289
		290	$path = $path->as_string if ref $path;
		291
		292	my $self = bless { }, $class;
		293
		294	if ($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+).
127		404
128	=over 4	405	=over 4
129		406
130	=item $object->attach ($attachment, key => $value...)
131
132	=item $object->detach ($attachment)
133
134	Attach/detach a pre-registered attachment to an object.
135
136	=item $player->attach ($attachment, key => $value...)
137
138	=item $player->detach ($attachment)
139
140	Attach/detach a pre-registered attachment to a player.
141
142	=item $map->attach ($attachment, key => $value...)	407	=item $attachable->attach ($attachment, key => $value...)
143		408
144	=item $map->detach ($attachment)	409	=item $attachable->detach ($attachment)
145		410
146	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.
147		413
148	=item $bool = $object->attached ($name)	414	Example, attach a minesweeper attachment to the given object, making it a
		415	10x10 minesweeper game:
149		416
150	=item $bool = $player->attached ($name)	417	$obj->attach (minesweeper => width => 10, height => 10);
151		418
152	=item $bool = $map->attached ($name)	419	=item $bool = $attachable->attached ($name)
153		420
154	Checks wether the named attachment is currently attached to the object.	421	Checks wether the named attachment is currently attached to the object.
155		422
156	=item cf::attach_global ...	423	=item cf::CLASS->attach ...
157		424
158	Attach handlers for global events.	425	=item cf::CLASS->detach ...
159		426
160	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
161	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:
162		461
163	=over 4	462	=over 4
164		463
165	=item prio => $number	464	=item prio => $number
166		465
…		…
168	by another C<prio> setting). Lower priority handlers get executed	467	by another C<prio> setting). Lower priority handlers get executed
169	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
170	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
171	unless you know what you are doing.	470	unless you know what you are doing.
172		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
173	=item on_I<event> => \&cb	478	=item on_I<event> => \&cb
174		479
175	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
176	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
177	handlers are recognised generally depends on the type of object these	482	handlers are recognised generally depends on the type of object these
…		…
186	package and register them. Only handlers for eevents supported by the	491	package and register them. Only handlers for eevents supported by the
187	object/class are recognised.	492	object/class are recognised.
188		493
189	=back	494	=back
190		495
191	=item cf::attach_to_type $object_type, $subtype, ...	496	Example, define an attachment called "sockpuppet" that calls the given
		497	event handler when a monster attacks:
192		498
193	Attach handlers for a specific object type (e.g. TRANSPORT) and	499	cf::object::attachment sockpuppet =>
194	subtype. If C<$subtype> is zero or undef, matches all objects of the given	500	on_skill_attack => sub {
195	type.	501	my ($self, $victim) = @_;
196		502	...
197	=item cf::attach_to_objects ...
198
199	Attach handlers to all objects. Do not use this except for debugging or
200	very rare events, as handlers are (obviously) called for I<all> objects in
201	the game.
202
203	=item cf::attach_to_players ...
204
205	Attach handlers to all players.
206
207	=item cf::attach_to_maps ...
208
209	Attach handlers to all maps.
210
211	=item cf:register_attachment $name, ...
212
213	Register an attachment by name through which objects can refer to this
214	attachment.
215
216	=item cf:register_player_attachment $name, ...
217
218	Register an attachment by name through which players can refer to this
219	attachment.
220
221	=item cf:register_map_attachment $name, ...
222
223	Register an attachment by name through which maps can refer to this
224	attachment.
225
226	=cut
227
228	# the following variables are defined in .xs and must not be re-created
229	our @CB_GLOBAL = (); # registry for all global events
230	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
231	our @CB_PLAYER = ();
232	our @CB_TYPE = (); # registry for type (cf-object class) based events
233	our @CB_MAP = ();
234
235	my %attachment;
236
237	sub _attach_cb($\%$$$) {
238	my ($registry, $undo, $event, $prio, $cb) = @_;
239
240	use sort 'stable';
241
242	$cb = [$prio, $cb];
243
244	@{$registry->[$event]} = sort
245	{ $a->[0] cmp $b->[0] }
246	@{$registry->[$event] || []}, $cb;
247
248	push @{$undo->{cb}}, [$event, $cb];
249	}
250
251	# attach handles attaching event callbacks
252	# the only thing the caller has to do is pass the correct
253	# registry (== where the callback attaches to).
254	sub _attach(\@$@) {
255	my ($registry, $klass, @arg) = @_;
256
257	my $prio = 0;
258
259	my %undo = (
260	registry => $registry,
261	cb => [],
262	);
263
264	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
265
266	while (@arg) {
267	my $type = shift @arg;
268
269	if ($type eq "prio") {
270	$prio = shift @arg;
271
272	} elsif ($type eq "package") {
273	my $pkg = shift @arg;
274
275	while (my ($name, $id) = each %cb_id) {
276	if (my $cb = $pkg->can ($name)) {
277	_attach_cb $registry, %undo, $id, $prio, $cb;
278	}
279	}	503	}
280
281	} elsif (exists $cb_id{$type}) {
282	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
283
284	} elsif (ref $type) {
285	warn "attaching objects not supported, ignoring.\n";
286
287	} else {
288	shift @arg;
289	warn "attach argument '$type' not supported, ignoring.\n";
290	}
291	}
292
293	\%undo
294	}
295
296	sub _attach_attachment {
297	my ($obj, $name, %arg) = @_;
298
299	return if exists $obj->{_attachment}{$name};
300
301	my $res;
302
303	if (my $attach = $attachment{$name}) {
304	my $registry = $obj->registry;
305
306	for (@$attach) {
307	my ($klass, @attach) = @$_;
308	$res = _attach @$registry, $klass, @attach;
309	}
310
311	$obj->{$name} = \%arg;
312	} else {
313	warn "object uses attachment '$name' that is not available, postponing.\n";
314	}
315
316	$obj->{_attachment}{$name} = undef;
317
318	$res->{attachment} = $name;
319	$res
320	}
321
322	*cf::object::attach =
323	*cf::player::attach =
324	*cf::map::attach = sub {
325	my ($obj, $name, %arg) = @_;
326
327	_attach_attachment $obj, $name, %arg;
328	};
329
330	# all those should be optimised
331	*cf::object::detach =
332	*cf::player::detach =
333	*cf::map::detach = sub {
334	my ($obj, $name) = @_;
335
336	delete $obj->{_attachment}{$name};
337	reattach ($obj);
338	};
339
340	*cf::object::attached =
341	*cf::player::attached =
342	*cf::map::attached = sub {
343	my ($obj, $name) = @_;
344
345	exists $obj->{_attachment}{$name}
346	};
347
348	sub attach_global {
349	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
350	}
351
352	sub attach_to_type {
353	my $type = shift;
354	my $subtype = shift;
355
356	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
357	}
358
359	sub attach_to_objects {
360	_attach @CB_OBJECT, KLASS_OBJECT, @_
361	}
362
363	sub attach_to_players {
364	_attach @CB_PLAYER, KLASS_PLAYER, @_
365	}
366
367	sub attach_to_maps {
368	_attach @CB_MAP, KLASS_MAP, @_
369	}
370
371	sub register_attachment {
372	my $name = shift;
373
374	$attachment{$name} = [[KLASS_OBJECT, @_]];
375	}
376
377	sub register_player_attachment {
378	my $name = shift;
379
380	$attachment{$name} = [[KLASS_PLAYER, @_]];
381	}
382
383	sub register_map_attachment {
384	my $name = shift;
385
386	$attachment{$name} = [[KLASS_MAP, @_]];
387	}
388
389	our $override;
390	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
391
392	sub override {
393	$override = 1;
394	@invoke_results = ();
395	}
396
397	sub do_invoke {
398	my $event = shift;
399	my $callbacks = shift;
400
401	@invoke_results = ();
402
403	local $override;
404
405	for (@$callbacks) {
406	eval { &{$_->[1]} };
407
408	if ($@) {
409	warn "$@";
410	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
411	override;
412	}
413
414	return 1 if $override;
415	}
416
417	0	504	}
418	}
419		505
420	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	506	=item $attachable->valid
421
422	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
423
424	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
425
426	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
427
428	Generate a global/object/player/map-specific event with the given arguments.
429
430	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
431	removed in future versions), and there is no public API to access override
432	results (if you must, access C<@cf::invoke_results> directly).
433
434	=back
435
436	=cut
437
438	#############################################################################
439
440	=head2 METHODS VALID FOR ALL CORE OBJECTS
441
442	=over 4
443
444	=item $object->valid, $player->valid, $map->valid
445		507
446	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
447	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
448	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
449	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
450	exception.	512	exception.
451		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
452	=back	697	=back
453		698
454	=cut	699	=cut
455
456	*cf::object::valid =
457	*cf::player::valid =
458	*cf::map::valid = \&cf::_valid;
459		700
460	#############################################################################	701	#############################################################################
461	# object support	702	# object support
462		703
463	sub instantiate {
464	my ($obj, $data) = @_;
465
466	$data = from_json $data;
467
468	for (@$data) {
469	my ($name, $args) = @$_;
470
471	$obj->attach ($name, %{$args || {} });
472	}
473	}
474
475	# basically do the same as instantiate, without calling instantiate
476	sub reattach {	704	sub reattach {
		705	# basically do the same as instantiate, without calling instantiate
477	my ($obj) = @_;	706	my ($obj) = @_;
		707
478	my $registry = $obj->registry;	708	my $registry = $obj->registry;
479		709
480	@$registry = ();	710	@$registry = ();
481		711
482	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	712	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
483		713
484	for my $name (keys %{ $obj->{_attachment} || {} }) {	714	for my $name (keys %{ $obj->{_attachment} || {} }) {
485	if (my $attach = $attachment{$name}) {	715	if (my $attach = $attachment{$name}) {
486	for (@$attach) {	716	for (@$attach) {
487	my ($klass, @attach) = @$_;	717	my ($klass, @attach) = @$_;
488	_attach @$registry, $klass, @attach;	718	_attach $registry, $klass, @attach;
489	}	719	}
490	} else {	720	} else {
491	warn "object uses attachment '$name' that is not available, postponing.\n";	721	warn "object uses attachment '$name' that is not available, postponing.\n";
492	}	722	}
493	}	723	}
494	}	724	}
495		725
496	sub object_freezer_save {	726	cf::attachable->attach (
497	my ($filename, $rdata, $objs) = @_;
498
499	if (length $$rdata) {
500	warn sprintf "saving %s (%d,%d)\n",
501	$filename, length $$rdata, scalar @$objs;
502
503	if (open my $fh, ">:raw", "$filename~") {
504	chmod SAVE_MODE, $fh;
505	syswrite $fh, $$rdata;
506	close $fh;
507
508	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
509	chmod SAVE_MODE, $fh;
510	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
511	close $fh;
512	rename "$filename.pst~", "$filename.pst";
513	} else {
514	unlink "$filename.pst";
515	}
516
517	rename "$filename~", $filename;
518	} else {
519	warn "FATAL: $filename~: $!\n";
520	}
521	} else {
522	unlink $filename;
523	unlink "$filename.pst";
524	}
525	}
526
527	sub object_thawer_load {
528	my ($filename) = @_;
529
530	local $/;
531
532	my $av;
533
534	#TODO: use sysread etc.
535	if (open my $data, "<:raw:perlio", $filename) {
536	$data = <$data>;
537	if (open my $pst, "<:raw:perlio", "$filename.pst") {
538	$av = eval { (Storable::thaw <$pst>)->{objs} };
539	}
540	return ($data, $av);
541	}
542
543	()
544	}
545
546	attach_to_objects
547	prio => -1000000,	727	prio => -1000000,
		728	on_instantiate => sub {
		729	my ($obj, $data) = @_;
		730
		731	$data = from_json $data;
		732
		733	for (@$data) {
		734	my ($name, $args) = @$_;
		735
		736	$obj->attach ($name, %{$args || {} });
		737	}
		738	},
		739	on_reattach => \&reattach,
548	on_clone => sub {	740	on_clone => sub {
549	my ($src, $dst) = @_;	741	my ($src, $dst) = @_;
550		742
551	@{$dst->registry} = @{$src->registry};	743	@{$dst->registry} = @{$src->registry};
552		744
553	%$dst = %$src;	745	%$dst = %$src;
554		746
555	%{$dst->{_attachment}} = %{$src->{_attachment}}	747	%{$dst->{_attachment}} = %{$src->{_attachment}}
556	if exists $src->{_attachment};	748	if exists $src->{_attachment};
557	},	749	},
558	;	750	);
		751
		752	sub object_freezer_save {
		753	my ($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	}
559		814
560	#############################################################################	815	#############################################################################
561	# old plug-in events	816	# command handling &c
562		817
563	sub inject_event {	818	=item cf::register_command $name => \&callback($ob,$args);
564	my $extension = shift;
565	my $event_code = shift;
566		819
567	my $cb = $hook[$event_code]{$extension}	820	Register a callback for execution when the client sends the user command
568	or return;	821	$name.
569		822
570	&$cb	823	=cut
571	}
572
573	sub inject_global_event {
574	my $event = shift;
575
576	my $cb = $hook[$event]
577	or return;
578
579	List::Util::max map &$_, values %$cb
580	}
581
582	sub inject_command {
583	my ($name, $obj, $params) = @_;
584
585	for my $cmd (@{ $command{$name} }) {
586	$cmd->[1]->($obj, $params);
587	}
588
589	-1
590	}
591		824
592	sub register_command {	825	sub register_command {
593	my ($name, $time, $cb) = @_;	826	my ($name, $cb) = @_;
594		827
595	my $caller = caller;	828	my $caller = caller;
596	#warn "registering command '$name/$time' to '$caller'";	829	#warn "registering command '$name/$time' to '$caller'";
597		830
598	push @{ $command{$name} }, [$time, $cb, $caller];	831	push @{ $COMMAND{$name} }, [$caller, $cb];
599	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
600	}	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
601		842
602	sub register_extcmd {	843	sub register_extcmd {
603	my ($name, $cb) = @_;	844	my ($name, $cb) = @_;
604		845
605	my $caller = caller;	846	my $caller = caller;
606	#warn "registering extcmd '$name' to '$caller'";	847	#warn "registering extcmd '$name' to '$caller'";
607		848
608	$extcmd{$name} = [$cb, $caller];	849	$EXTCMD{$name} = [$cb, $caller];
609	}	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	);
610		883
611	sub register {	884	sub register {
612	my ($base, $pkg) = @_;	885	my ($base, $pkg) = @_;
613		886
614	#TODO	887	#TODO
…		…
633	. "#line 1 \"$path\"\n{\n"	906	. "#line 1 \"$path\"\n{\n"
634	. (do { local $/; <$fh> })	907	. (do { local $/; <$fh> })
635	. "\n};\n1";	908	. "\n};\n1";
636		909
637	eval $source	910	eval $source
638	or die "$path: $@";	911	or die $@ ? "$path: $@\n"
		912	: "extension disabled.\n";
639		913
640	push @exts, $pkg;	914	push @exts, $pkg;
641	$ext_pkg{$base} = $pkg;	915	$ext_pkg{$base} = $pkg;
642		916
643	# no strict 'refs';	917	# no strict 'refs';
…		…
656	# for my $idx (0 .. $#PLUGIN_EVENT) {	930	# for my $idx (0 .. $#PLUGIN_EVENT) {
657	# delete $hook[$idx]{$pkg};	931	# delete $hook[$idx]{$pkg};
658	# }	932	# }
659		933
660	# remove commands	934	# remove commands
661	for my $name (keys %command) {	935	for my $name (keys %COMMAND) {
662	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
663		937
664	if (@cb) {	938	if (@cb) {
665	$command{$name} = \@cb;	939	$COMMAND{$name} = \@cb;
666	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
667	} else {	940	} else {
668	delete $command{$name};
669	delete $COMMAND{"$name\000"};	941	delete $COMMAND{$name};
670	}	942	}
671	}	943	}
672		944
673	# remove extcmds	945	# remove extcmds
674	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
675	delete $extcmd{$name};	947	delete $EXTCMD{$name};
676	}	948	}
677		949
678	if (my $cb = $pkg->can ("unload")) {	950	if (my $cb = $pkg->can ("unload")) {
679	eval {	951	eval {
680	$cb->($pkg);	952	$cb->($pkg);
…		…
684		956
685	Symbol::delete_package $pkg;	957	Symbol::delete_package $pkg;
686	}	958	}
687		959
688	sub load_extensions {	960	sub load_extensions {
689	my $LIBDIR = maps_directory "perl";
690
691	for my $ext (<$LIBDIR/*.ext>) {	961	for my $ext (<$LIBDIR/*.ext>) {
692	next unless -r $ext;	962	next unless -r $ext;
693	eval {	963	eval {
694	load_extension $ext;	964	load_extension $ext;
695	1	965	1
696	} or warn "$ext not loaded: $@";	966	} or warn "$ext not loaded: $@";
697	}	967	}
698	}	968	}
699		969
700	#############################################################################	970	#############################################################################
701	# extcmd framework, basically convert ext <msg>
702	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
703
704	attach_to_players
705	on_extcmd => sub {
706	my ($pl, $buf) = @_;
707
708	my $msg = eval { from_json $buf };
709
710	if (ref $msg) {
711	if (my $cb = $extcmd{$msg->{msgtype}}) {
712	if (my %reply = $cb->[0]->($pl, $msg)) {
713	$pl->ext_reply ($msg->{msgid}, %reply);
714	}
715	}
716	} else {
717	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
718	}
719
720	cf::override;
721	},
722	;
723
724	#############################################################################
725	# load/save/clean perl data associated with a map	971	# load/save/clean perl data associated with a map
726		972
727	*cf::mapsupport::on_clean = sub {	973	*cf::mapsupport::on_clean = sub {
728	my ($map) = @_;	974	my ($map) = @_;
729		975
…		…
731	defined $path or return;	977	defined $path or return;
732		978
733	unlink "$path.pst";	979	unlink "$path.pst";
734	};	980	};
735		981
736	attach_to_maps prio => -10000, package => cf::mapsupport::;	982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
737		983
738	#############################################################################	984	#############################################################################
739	# load/save perl data associated with player->ob objects	985	# load/save perl data associated with player->ob objects
740		986
741	sub all_objects(@) {	987	sub all_objects(@) {
742	@_, map all_objects ($_->inv), @_	988	@_, map all_objects ($_->inv), @_
743	}	989	}
744		990
745	# TODO: compatibility cruft, remove when no longer needed	991	# TODO: compatibility cruft, remove when no longer needed
746	attach_to_players	992	cf::player->attach (
747	on_load => sub {	993	on_load => sub {
748	my ($pl, $path) = @_;	994	my ($pl, $path) = @_;
749		995
750	for my $o (all_objects $pl->ob) {	996	for my $o (all_objects $pl->ob) {
751	if (my $value = $o->get_ob_key_value ("_perl_data")) {	997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
753		999
754	%$o = %{ Storable::thaw pack "H*", $value };	1000	%$o = %{ Storable::thaw pack "H*", $value };
755	}	1001	}
756	}	1002	}
757	},	1003	},
758	;	1004	);
759		1005
760	#############################################################################	1006	#############################################################################
761		1007
762	=head2 CORE EXTENSIONS	1008	=head2 CORE EXTENSIONS
763		1009
764	Functions and methods that extend core crossfire objects.	1010	Functions and methods that extend core crossfire objects.
		1011
		1012	=head3 cf::player
765		1013
766	=over 4	1014	=over 4
767		1015
768	=item cf::player::exists $login	1016	=item cf::player::exists $login
769		1017
…		…
774	sub cf::player::exists($) {	1022	sub cf::player::exists($) {
775	cf::player::find $_[0]	1023	cf::player::find $_[0]
776	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;
777	}	1025	}
778		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
779	=item $object->reply ($npc, $msg[, $flags])	1315	=item $player_object->reply ($npc, $msg[, $flags])
780		1316
781	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1317	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
782	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
783	dialogue with the given NPC character.	1319	dialogue with the given NPC character.
784		1320
785	=cut	1321	=cut
786		1322
787	# rough implementation of a future "reply" method that works	1323	# rough implementation of a future "reply" method that works
788	# with dialog boxes.	1324	# with dialog boxes.
		1325	#TODO: the first argument must go, split into a $npc->reply_to ( method
789	sub cf::object::player::reply($$$;$) {	1326	sub cf::object::player::reply($$$;$) {
790	my ($self, $npc, $msg, $flags) = @_;	1327	my ($self, $npc, $msg, $flags) = @_;
791		1328
792	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1329	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
793		1330
…		…
797	$msg = $npc->name . " says: $msg" if $npc;	1334	$msg = $npc->name . " says: $msg" if $npc;
798	$self->message ($msg, $flags);	1335	$self->message ($msg, $flags);
799	}	1336	}
800	}	1337	}
801		1338
802	=item $player->ext_reply ($msgid, $msgtype, %msg)	1339	=item $player_object->may ("access")
803		1340
804	Sends an ext reply to the player.	1341	Returns wether the given player is authorized to access resource "access"
		1342	(e.g. "command_wizcast").
805		1343
806	=cut	1344	=cut
807		1345
808	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 {
809	my ($self, $id, %msg) = @_;	1472	my ($self, $exit) = @_;
810		1473
811	$msg{msgid} = $id;	1474	return unless $self->type == cf::PLAYER;
812		1475
813	$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);
814	}	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	);
815		1602
816	=back	1603	=back
817		1604
818	=cut
819
820	#############################################################################
821		1605
822	=head2 SAFE SCRIPTING	1606	=head2 SAFE SCRIPTING
823		1607
824	Functions that provide a safe environment to compile and execute	1608	Functions that provide a safe environment to compile and execute
825	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
826	itself. Looping constructs, I/O operators and other built-in functionality	1610	itself. Looping constructs, I/O operators and other built-in functionality
827	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
828	functions and methods that cna be called is greatly reduced.	1612	functions and methods that can be called is greatly reduced.
829		1613
830	=cut	1614	=cut
831		1615
832	our $safe = new Safe "safe";	1616	our $safe = new Safe "safe";
833	our $safe_hole = new Safe::Hole;	1617	our $safe_hole = new Safe::Hole;
…		…
840		1624
841	=pod	1625	=pod
842		1626
843	The following fucntions and emthods are available within a safe environment:	1627	The following fucntions and emthods are available within a safe environment:
844		1628
845	cf::object contr pay_amount pay_player	1629	cf::object contr pay_amount pay_player map
846	cf::object::player player	1630	cf::object::player player
847	cf::player peaceful	1631	cf::player peaceful
		1632	cf::map trigger
848		1633
849	=cut	1634	=cut
850		1635
851	for (	1636	for (
852	["cf::object" => qw(contr pay_amount pay_player)],	1637	["cf::object" => qw(contr pay_amount pay_player map)],
853	["cf::object::player" => qw(player)],	1638	["cf::object::player" => qw(player)],
854	["cf::player" => qw(peaceful)],	1639	["cf::player" => qw(peaceful)],
		1640	["cf::map" => qw(trigger)],
855	) {	1641	) {
856	no strict 'refs';	1642	no strict 'refs';
857	my ($pkg, @funs) = @$_;	1643	my ($pkg, @funs) = @$_;
858	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1644	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
859	for @funs;	1645	for @funs;
…		…
969		1755
970	Immediately write the database to disk I<if it is dirty>.	1756	Immediately write the database to disk I<if it is dirty>.
971		1757
972	=cut	1758	=cut
973		1759
		1760	our $DB;
		1761
974	{	1762	{
975	my $db;
976	my $path = cf::localdir . "/database.pst";	1763	my $path = cf::localdir . "/database.pst";
977		1764
978	sub db_load() {	1765	sub db_load() {
979	warn "loading database $path\n";#d# remove later	1766	warn "loading database $path\n";#d# remove later
980	$db = stat $path ? Storable::retrieve $path : { };	1767	$DB = stat $path ? Storable::retrieve $path : { };
981	}	1768	}
982		1769
983	my $pid;	1770	my $pid;
984		1771
985	sub db_save() {	1772	sub db_save() {
986	warn "saving database $path\n";#d# remove later	1773	warn "saving database $path\n";#d# remove later
987	waitpid $pid, 0 if $pid;	1774	waitpid $pid, 0 if $pid;
988	if (0 == ($pid = fork)) {	1775	if (0 == ($pid = fork)) {
989	$db->{_meta}{version} = 1;	1776	$DB->{_meta}{version} = 1;
990	Storable::nstore $db, "$path~";	1777	Storable::nstore $DB, "$path~";
991	rename "$path~", $path;	1778	rename "$path~", $path;
992	cf::_exit 0 if defined $pid;	1779	cf::_exit 0 if defined $pid;
993	}	1780	}
994	}	1781	}
995		1782
…		…
998	sub db_sync() {	1785	sub db_sync() {
999	db_save if $dirty;	1786	db_save if $dirty;
1000	undef $dirty;	1787	undef $dirty;
1001	}	1788	}
1002		1789
1003	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 {
1004	db_sync;	1791	db_sync;
1005	});	1792	});
1006		1793
1007	sub db_dirty() {	1794	sub db_dirty() {
1008	$dirty = 1;	1795	$dirty = 1;
1009	$idle->start;	1796	$idle->start;
1010	}	1797	}
1011		1798
1012	sub db_get($;$) {	1799	sub db_get($;$) {
1013	@_ >= 2	1800	@_ >= 2
1014	? $db->{$_[0]}{$_[1]}	1801	? $DB->{$_[0]}{$_[1]}
1015	: ($db->{$_[0]} ||= { })	1802	: ($DB->{$_[0]} ||= { })
1016	}	1803	}
1017		1804
1018	sub db_put($$;$) {	1805	sub db_put($$;$) {
1019	if (@_ >= 3) {	1806	if (@_ >= 3) {
1020	$db->{$_[0]}{$_[1]} = $_[2];	1807	$DB->{$_[0]}{$_[1]} = $_[2];
1021	} else {	1808	} else {
1022	$db->{$_[0]} = $_[1];	1809	$DB->{$_[0]} = $_[1];
1023	}	1810	}
1024	db_dirty;	1811	db_dirty;
1025	}	1812	}
1026		1813
1027	attach_global	1814	cf::global->attach (
1028	prio => 10000,	1815	prio => 10000,
1029	on_cleanup => sub {	1816	on_cleanup => sub {
1030	db_sync;	1817	db_sync;
1031	},	1818	},
1032	;	1819	);
1033	}	1820	}
1034		1821
1035	#############################################################################	1822	#############################################################################
1036	# the server's main()	1823	# the server's main()
1037		1824
…		…
1042	local $/;	1829	local $/;
1043	*CFG = YAML::Syck::Load <$fh>;	1830	*CFG = YAML::Syck::Load <$fh>;
1044	}	1831	}
1045		1832
1046	sub main {	1833	sub main {
		1834	# we must not ever block the main coroutine
		1835	local $Coro::idle = sub {
		1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1837	(Coro::unblock_sub {
		1838	Event::one_event;
		1839	})->();
		1840	};
		1841
1047	cfg_load;	1842	cfg_load;
1048	db_load;	1843	db_load;
1049	load_extensions;	1844	load_extensions;
1050	Event::loop;	1845	Event::loop;
1051	}	1846	}
1052		1847
1053	#############################################################################	1848	#############################################################################
1054	# initialisation	1849	# initialisation
1055		1850
1056	sub _perl_reload(&) {	1851	sub reload() {
1057	my ($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	}
1058		1857
1059	$msg->("reloading...");	1858	warn "reloading...";
		1859
		1860	local $FREEZE = 1;
		1861	cf::emergency_save;
1060		1862
1061	eval {	1863	eval {
		1864	# if anything goes wrong in here, we should simply crash as we already saved
		1865
1062	# cancel all watchers	1866	# cancel all watchers
1063	$_->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 = ();
1064		1874
1065	# unload all extensions	1875	# unload all extensions
1066	for (@exts) {	1876	for (@exts) {
1067	$msg->("unloading <$_>");	1877	warn "unloading <$_>";
1068	unload_extension $_;	1878	unload_extension $_;
1069	}	1879	}
1070		1880
1071	# unload all modules loaded from $LIBDIR	1881	# unload all modules loaded from $LIBDIR
1072	while (my ($k, $v) = each %INC) {	1882	while (my ($k, $v) = each %INC) {
1073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1074		1884
1075	$msg->("removing <$k>");	1885	warn "removing <$k>";
1076	delete $INC{$k};	1886	delete $INC{$k};
1077		1887
1078	$k =~ s/\.pm$//;	1888	$k =~ s/\.pm$//;
1079	$k =~ s/\//::/g;	1889	$k =~ s/\//::/g;
1080		1890
…		…
1085	Symbol::delete_package $k;	1895	Symbol::delete_package $k;
1086	}	1896	}
1087		1897
1088	# sync database to disk	1898	# sync database to disk
1089	cf::db_sync;	1899	cf::db_sync;
		1900	IO::AIO::flush;
1090		1901
1091	# get rid of safe::, as good as possible	1902	# get rid of safe::, as good as possible
1092	Symbol::delete_package "safe::$_"	1903	Symbol::delete_package "safe::$_"
1093	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);
1094		1905
1095	# remove register_script_function callbacks	1906	# remove register_script_function callbacks
1096	# TODO	1907	# TODO
1097		1908
1098	# unload cf.pm "a bit"	1909	# unload cf.pm "a bit"
…		…
1101	# don't, removes xs symbols, too,	1912	# don't, removes xs symbols, too,
1102	# and global variables created in xs	1913	# and global variables created in xs
1103	#Symbol::delete_package __PACKAGE__;	1914	#Symbol::delete_package __PACKAGE__;
1104		1915
1105	# reload cf.pm	1916	# reload cf.pm
1106	$msg->("reloading cf.pm");	1917	warn "reloading cf.pm";
1107	require cf;	1918	require cf;
		1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1108		1920
1109	# load config and database again	1921	# load config and database again
1110	cf::cfg_load;	1922	cf::cfg_load;
1111	cf::db_load;	1923	cf::db_load;
1112		1924
1113	# load extensions	1925	# load extensions
1114	$msg->("load extensions");	1926	warn "load extensions";
1115	cf::load_extensions;	1927	cf::load_extensions;
1116		1928
1117	# reattach attachments to objects	1929	# reattach attachments to objects
1118	$msg->("reattach");	1930	warn "reattach";
1119	_global_reattach;	1931	_global_reattach;
1120	};	1932	};
1121	$msg->($@) if $@;
1122		1933
1123	$msg->("reloaded");	1934	if ($@) {
		1935	warn $@;
		1936	warn "error while reloading, exiting.";
		1937	exit 1;
		1938	}
		1939
		1940	warn "reloaded successfully";
1124	};	1941	};
1125		1942
1126	sub perl_reload() {	1943	#############################################################################
1127	_perl_reload {
1128	warn $_[0];
1129	print "$_[0]\n";
1130	};
1131	}
1132		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} = $LINK_MAP;
		1984	}
		1985
		1986	register "<global>", __PACKAGE__;
		1987
1133	register_command "perl-reload", 0, sub {	1988	register_command "reload" => sub {
1134	my ($who, $arg) = @_;	1989	my ($who, $arg) = @_;
1135		1990
1136	if ($who->flag (FLAG_WIZ)) {	1991	if ($who->flag (FLAG_WIZ)) {
1137	_perl_reload {	1992	$who->message ("start of reload.");
1138	warn $_[0];	1993	reload;
1139	$who->message ($_[0]);	1994	$who->message ("end of reload.");
1140	};
1141	}	1995	}
1142	};	1996	};
1143		1997
1144	register "<global>", __PACKAGE__;
1145
1146	unshift @INC, $LIBDIR;	1998	unshift @INC, $LIBDIR;
1147		1999
1148	$TICK_WATCHER = Event->timer (	2000	$TICK_WATCHER = Event->timer (
		2001	reentrant => 0,
1149	prio => 1,	2002	prio => 0,
1150	at => $NEXT_TICK || 1,	2003	at => $NEXT_TICK || $TICK,
		2004	data => WF_AUTOCANCEL,
1151	cb => sub {	2005	cb => sub {
		2006	unless ($FREEZE) {
1152	cf::server_tick; # one server iteration	2007	cf::server_tick; # one server iteration
		2008	$RUNTIME += $TICK;
		2009	}
1153		2010
1154	my $NOW = Event::time;
1155	$NEXT_TICK += $TICK;	2011	$NEXT_TICK += $TICK;
1156		2012
1157	# if we are delayed by four ticks, skip them all	2013	# if we are delayed by four ticks or more, skip them all
1158	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1159		2015
1160	$TICK_WATCHER->at ($NEXT_TICK);	2016	$TICK_WATCHER->at ($NEXT_TICK);
1161	$TICK_WATCHER->start;	2017	$TICK_WATCHER->start;
1162	},	2018	},
1163	);	2019	);
1164		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
1165	1	2043	1
1166		2044

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