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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 1.113 by root, Mon Jan 1 15:32:40 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 rename {
		1268	my ($self, $new_path) = @_;
		1269
		1270	$self->unlink_save;
		1271
		1272	delete $cf::MAP{$self->path};
		1273	$self->{path} = new cf::path $new_path;
		1274	$self->path ($self->{path}->path);
		1275	$cf::MAP{$self->path} = $self;
		1276
		1277	$self->save;
		1278	}
		1279
		1280	sub reset {
		1281	my ($self) = @_;
		1282
		1283	return if $self->players;
		1284	return if $self->{path}{user_rel};#d#
		1285
		1286	warn "resetting map ", $self->path;#d#
		1287
		1288	delete $cf::MAP{$self->path};
		1289
		1290	$_->clear_links_to ($self) for values %cf::MAP;
		1291
		1292	$self->unlink_save;
		1293	$self->destroy;
		1294	}
		1295
		1296	sub customise_for {
		1297	my ($map, $ob) = @_;
		1298
		1299	if ($map->per_player) {
		1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1301	}
		1302
		1303	$map
		1304	}
		1305
		1306	sub emergency_save {
		1307	local $cf::FREEZE = 1;
		1308
		1309	warn "enter emergency map save\n";
		1310
		1311	cf::sync_job {
		1312	warn "begin emergency map save\n";
		1313	$_->save for values %cf::MAP;
		1314	};
		1315
		1316	warn "end emergency map save\n";
		1317	}
		1318
		1319	package cf;
		1320
		1321	=back
		1322
		1323
		1324	=head3 cf::object::player
		1325
		1326	=over 4
		1327
767	=item $player->reply ($npc, $msg[, $flags])	1328	=item $player_object->reply ($npc, $msg[, $flags])
768		1329
769	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1330	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
770	can be C<undef>. Does the right thing when the player is currently in a	1331	can be C<undef>. Does the right thing when the player is currently in a
771	dialogue with the given NPC character.	1332	dialogue with the given NPC character.
772		1333
773	=cut	1334	=cut
774		1335
775	# rough implementation of a future "reply" method that works	1336	# rough implementation of a future "reply" method that works
776	# with dialog boxes.	1337	# with dialog boxes.
		1338	#TODO: the first argument must go, split into a $npc->reply_to ( method
777	sub cf::object::player::reply($$$;$) {	1339	sub cf::object::player::reply($$$;$) {
778	my ($self, $npc, $msg, $flags) = @_;	1340	my ($self, $npc, $msg, $flags) = @_;
779		1341
780	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1342	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
781		1343
…		…
785	$msg = $npc->name . " says: $msg" if $npc;	1347	$msg = $npc->name . " says: $msg" if $npc;
786	$self->message ($msg, $flags);	1348	$self->message ($msg, $flags);
787	}	1349	}
788	}	1350	}
789		1351
790	=item $player->ext_reply ($msgid, $msgtype, %msg)	1352	=item $player_object->may ("access")
791		1353
792	Sends an ext reply to the player.	1354	Returns wether the given player is authorized to access resource "access"
		1355	(e.g. "command_wizcast").
793		1356
794	=cut	1357	=cut
795		1358
796	sub cf::player::ext_reply($$$%) {	1359	sub cf::object::player::may {
		1360	my ($self, $access) = @_;
		1361
		1362	$self->flag (cf::FLAG_WIZ) ||
		1363	(ref $cf::CFG{"may_$access"}
		1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1365	: $cf::CFG{"may_$access"})
		1366	}
		1367
		1368	sub cf::object::player::enter_link {
		1369	my ($self) = @_;
		1370
		1371	return if $self->map == $LINK_MAP;
		1372
		1373	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1374	if $self->map;
		1375
		1376	$self->enter_map ($LINK_MAP, 20, 20);
		1377	$self->deactivate_recursive;
		1378	}
		1379
		1380	sub cf::object::player::leave_link {
		1381	my ($self, $map, $x, $y) = @_;
		1382
		1383	my $link_pos = delete $self->{_link_pos};
		1384
		1385	unless ($map) {
		1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1387
		1388	# restore original map position
		1389	($map, $x, $y) = @{ $link_pos || [] };
		1390	$map = cf::map::find_map $map;
		1391
		1392	unless ($map) {
		1393	($map, $x, $y) = @$EMERGENCY_POSITION;
		1394	$map = cf::map::find_map $map
		1395	or die "FATAL: cannot load emergency map\n";
		1396	}
		1397	}
		1398
		1399	($x, $y) = (-1, -1)
		1400	unless (defined $x) && (defined $y);
		1401
		1402	# use -1 or undef as default coordinates, not 0, 0
		1403	($x, $y) = ($map->enter_x, $map->enter_y)
		1404	if $x <=0 && $y <= 0;
		1405
		1406	$map->load;
		1407
		1408	$self->activate_recursive;
		1409	$self->enter_map ($map, $x, $y);
		1410	}
		1411
		1412	=item $player_object->goto_map ($map, $x, $y)
		1413
		1414	=cut
		1415
		1416	sub cf::object::player::goto_map {
		1417	my ($self, $path, $x, $y) = @_;
		1418
		1419	$self->enter_link;
		1420
		1421	(Coro::async {
		1422	$path = new cf::path $path;
		1423
		1424	my $map = cf::map::find_map $path->as_string;
		1425	$map = $map->customise_for ($self) if $map;
		1426
		1427	warn "entering ", $map->path, " at ($x, $y)\n"
		1428	if $map;
		1429
		1430	$self->leave_link ($map, $x, $y);
		1431	})->prio (1);
		1432	}
		1433
		1434	=item $player_object->enter_exit ($exit_object)
		1435
		1436	=cut
		1437
		1438	sub parse_random_map_params {
		1439	my ($spec) = @_;
		1440
		1441	my $rmp = { # defaults
		1442	xsize => 10,
		1443	ysize => 10,
		1444	};
		1445
		1446	for (split /\n/, $spec) {
		1447	my ($k, $v) = split /\s+/, $_, 2;
		1448
		1449	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1450	}
		1451
		1452	$rmp
		1453	}
		1454
		1455	sub prepare_random_map {
		1456	my ($exit) = @_;
		1457
		1458	# all this does is basically replace the /! path by
		1459	# a new random map path (?random/...) with a seed
		1460	# that depends on the exit object
		1461
		1462	my $rmp = parse_random_map_params $exit->msg;
		1463
		1464	if ($exit->map) {
		1465	$rmp->{region} = $exit->map->region_name;
		1466	$rmp->{origin_map} = $exit->map->path;
		1467	$rmp->{origin_x} = $exit->x;
		1468	$rmp->{origin_y} = $exit->y;
		1469	}
		1470
		1471	$rmp->{random_seed} ||= $exit->random_seed;
		1472
		1473	my $data = cf::to_json $rmp;
		1474	my $md5 = Digest::MD5::md5_hex $data;
		1475
		1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1477	aio_write $fh, 0, (length $data), $data, 0;
		1478
		1479	$exit->slaying ("?random/$md5");
		1480	$exit->msg (undef);
		1481	}
		1482	}
		1483
		1484	sub cf::object::player::enter_exit {
797	my ($self, $id, %msg) = @_;	1485	my ($self, $exit) = @_;
798		1486
799	$msg{msgid} = $id;	1487	return unless $self->type == cf::PLAYER;
800		1488
801	$self->send ("ext " . to_json \%msg);	1489	$self->enter_link;
		1490
		1491	(Coro::async {
		1492	unless (eval {
		1493
		1494	prepare_random_map $exit
		1495	if $exit->slaying eq "/!";
		1496
		1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1499
		1500	1;
		1501	}) {
		1502	$self->message ("Something went wrong deep within the crossfire server. "
		1503	. "I'll try to bring you back to the map you were before. "
		1504	. "Please report this to the dungeon master",
		1505	cf::NDI_UNIQUE | cf::NDI_RED);
		1506
		1507	warn "ERROR in enter_exit: $@";
		1508	$self->leave_link;
		1509	}
		1510	})->prio (1);
802	}	1511	}
		1512
		1513	=head3 cf::client
		1514
		1515	=over 4
		1516
		1517	=item $client->send_drawinfo ($text, $flags)
		1518
		1519	Sends a drawinfo packet to the client. Circumvents output buffering so
		1520	should not be used under normal circumstances.
		1521
		1522	=cut
		1523
		1524	sub cf::client::send_drawinfo {
		1525	my ($self, $text, $flags) = @_;
		1526
		1527	utf8::encode $text;
		1528	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1529	}
		1530
		1531
		1532	=item $success = $client->query ($flags, "text", \&cb)
		1533
		1534	Queues a query to the client, calling the given callback with
		1535	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1536	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1537
		1538	Queries can fail, so check the return code. Or don't, as queries will become
		1539	reliable at some point in the future.
		1540
		1541	=cut
		1542
		1543	sub cf::client::query {
		1544	my ($self, $flags, $text, $cb) = @_;
		1545
		1546	return unless $self->state == ST_PLAYING
		1547	|| $self->state == ST_SETUP
		1548	|| $self->state == ST_CUSTOM;
		1549
		1550	$self->state (ST_CUSTOM);
		1551
		1552	utf8::encode $text;
		1553	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1554
		1555	$self->send_packet ($self->{query_queue}[0][0])
		1556	if @{ $self->{query_queue} } == 1;
		1557	}
		1558
		1559	cf::client->attach (
		1560	on_reply => sub {
		1561	my ($ns, $msg) = @_;
		1562
		1563	# this weird shuffling is so that direct followup queries
		1564	# get handled first
		1565	my $queue = delete $ns->{query_queue};
		1566
		1567	(shift @$queue)->[1]->($msg);
		1568
		1569	push @{ $ns->{query_queue} }, @$queue;
		1570
		1571	if (@{ $ns->{query_queue} } == @$queue) {
		1572	if (@$queue) {
		1573	$ns->send_packet ($ns->{query_queue}[0][0]);
		1574	} else {
		1575	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1576	}
		1577	}
		1578	},
		1579	);
		1580
		1581	=item $client->coro (\&cb)
		1582
		1583	Create a new coroutine, running the specified callback. The coroutine will
		1584	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1585	or loss of connection).
		1586
		1587	=cut
		1588
		1589	sub cf::client::coro {
		1590	my ($self, $cb) = @_;
		1591
		1592	my $coro; $coro = async {
		1593	eval {
		1594	$cb->();
		1595	};
		1596	warn $@ if $@;
		1597	};
		1598
		1599	$coro->on_destroy (sub {
		1600	delete $self->{_coro}{$coro+0};
		1601	});
		1602
		1603	$self->{_coro}{$coro+0} = $coro;
		1604
		1605	$coro
		1606	}
		1607
		1608	cf::client->attach (
		1609	on_destroy => sub {
		1610	my ($ns) = @_;
		1611
		1612	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1613	},
		1614	);
803		1615
804	=back	1616	=back
805		1617
806	=cut
807
808	#############################################################################
809		1618
810	=head2 SAFE SCRIPTING	1619	=head2 SAFE SCRIPTING
811		1620
812	Functions that provide a safe environment to compile and execute	1621	Functions that provide a safe environment to compile and execute
813	snippets of perl code without them endangering the safety of the server	1622	snippets of perl code without them endangering the safety of the server
814	itself. Looping constructs, I/O operators and other built-in functionality	1623	itself. Looping constructs, I/O operators and other built-in functionality
815	is not available in the safe scripting environment, and the number of	1624	is not available in the safe scripting environment, and the number of
816	functions and methods that cna be called is greatly reduced.	1625	functions and methods that can be called is greatly reduced.
817		1626
818	=cut	1627	=cut
819		1628
820	our $safe = new Safe "safe";	1629	our $safe = new Safe "safe";
821	our $safe_hole = new Safe::Hole;	1630	our $safe_hole = new Safe::Hole;
…		…
828		1637
829	=pod	1638	=pod
830		1639
831	The following fucntions and emthods are available within a safe environment:	1640	The following fucntions and emthods are available within a safe environment:
832		1641
833	cf::object contr pay_amount pay_player	1642	cf::object contr pay_amount pay_player map
834	cf::object::player player	1643	cf::object::player player
835	cf::player peaceful	1644	cf::player peaceful
		1645	cf::map trigger
836		1646
837	=cut	1647	=cut
838		1648
839	for (	1649	for (
840	["cf::object" => qw(contr pay_amount pay_player)],	1650	["cf::object" => qw(contr pay_amount pay_player map)],
841	["cf::object::player" => qw(player)],	1651	["cf::object::player" => qw(player)],
842	["cf::player" => qw(peaceful)],	1652	["cf::player" => qw(peaceful)],
		1653	["cf::map" => qw(trigger)],
843	) {	1654	) {
844	no strict 'refs';	1655	no strict 'refs';
845	my ($pkg, @funs) = @$_;	1656	my ($pkg, @funs) = @$_;
846	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1657	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
847	for @funs;	1658	for @funs;
…		…
912	*{"safe::$fun"} = $safe_hole->wrap ($cb);	1723	*{"safe::$fun"} = $safe_hole->wrap ($cb);
913	}	1724	}
914		1725
915	=back	1726	=back
916		1727
		1728	=cut
		1729
917	#############################################################################	1730	#############################################################################
918		1731
919	=head2 EXTENSION DATABASE SUPPORT	1732	=head2 EXTENSION DATABASE SUPPORT
920		1733
921	Crossfire maintains a very simple database for extension use. It can	1734	Crossfire maintains a very simple database for extension use. It can
…		…
955		1768
956	Immediately write the database to disk I<if it is dirty>.	1769	Immediately write the database to disk I<if it is dirty>.
957		1770
958	=cut	1771	=cut
959		1772
		1773	our $DB;
		1774
960	{	1775	{
961	my $db;
962	my $path = cf::localdir . "/database.pst";	1776	my $path = cf::localdir . "/database.pst";
963		1777
964	sub db_load() {	1778	sub db_load() {
965	warn "loading database $path\n";#d# remove later	1779	warn "loading database $path\n";#d# remove later
966	$db = stat $path ? Storable::retrieve $path : { };	1780	$DB = stat $path ? Storable::retrieve $path : { };
967	}	1781	}
968		1782
969	my $pid;	1783	my $pid;
970		1784
971	sub db_save() {	1785	sub db_save() {
972	warn "saving database $path\n";#d# remove later	1786	warn "saving database $path\n";#d# remove later
973	waitpid $pid, 0 if $pid;	1787	waitpid $pid, 0 if $pid;
974	if (0 == ($pid = fork)) {	1788	if (0 == ($pid = fork)) {
975	$db->{_meta}{version} = 1;	1789	$DB->{_meta}{version} = 1;
976	Storable::nstore $db, "$path~";	1790	Storable::nstore $DB, "$path~";
977	rename "$path~", $path;	1791	rename "$path~", $path;
978	cf::_exit 0 if defined $pid;	1792	cf::_exit 0 if defined $pid;
979	}	1793	}
980	}	1794	}
981		1795
…		…
984	sub db_sync() {	1798	sub db_sync() {
985	db_save if $dirty;	1799	db_save if $dirty;
986	undef $dirty;	1800	undef $dirty;
987	}	1801	}
988		1802
989	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1803	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
990	db_sync;	1804	db_sync;
991	});	1805	});
992		1806
993	sub db_dirty() {	1807	sub db_dirty() {
994	$dirty = 1;	1808	$dirty = 1;
995	$idle->start;	1809	$idle->start;
996	}	1810	}
997		1811
998	sub db_get($;$) {	1812	sub db_get($;$) {
999	@_ >= 2	1813	@_ >= 2
1000	? $db->{$_[0]}{$_[1]}	1814	? $DB->{$_[0]}{$_[1]}
1001	: ($db->{$_[0]} ||= { })	1815	: ($DB->{$_[0]} ||= { })
1002	}	1816	}
1003		1817
1004	sub db_put($$;$) {	1818	sub db_put($$;$) {
1005	if (@_ >= 3) {	1819	if (@_ >= 3) {
1006	$db->{$_[0]}{$_[1]} = $_[2];	1820	$DB->{$_[0]}{$_[1]} = $_[2];
1007	} else {	1821	} else {
1008	$db->{$_[0]} = $_[1];	1822	$DB->{$_[0]} = $_[1];
1009	}	1823	}
1010	db_dirty;	1824	db_dirty;
1011	}	1825	}
1012		1826
1013	attach_global	1827	cf::global->attach (
1014	prio => 10000,	1828	prio => 10000,
1015	on_cleanup => sub {	1829	on_cleanup => sub {
1016	db_sync;	1830	db_sync;
1017	},	1831	},
1018	;	1832	);
1019	}	1833	}
1020		1834
1021	#############################################################################	1835	#############################################################################
1022	# the server's main()	1836	# the server's main()
1023		1837
		1838	sub cfg_load {
		1839	open my $fh, "<:utf8", cf::confdir . "/config"
		1840	or return;
		1841
		1842	local $/;
		1843	*CFG = YAML::Syck::Load <$fh>;
		1844	}
		1845
1024	sub main {	1846	sub main {
		1847	# we must not ever block the main coroutine
		1848	local $Coro::idle = sub {
		1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1850	(Coro::unblock_sub {
		1851	Event::one_event;
		1852	})->();
		1853	};
		1854
		1855	cfg_load;
1025	db_load;	1856	db_load;
1026	load_extensions;	1857	load_extensions;
1027	Event::loop;	1858	Event::loop;
1028	}	1859	}
1029		1860
1030	#############################################################################	1861	#############################################################################
1031	# initialisation	1862	# initialisation
1032		1863
1033	sub _perl_reload(&) {	1864	sub reload() {
1034	my ($msg) = @_;	1865	# can/must only be called in main
		1866	if ($Coro::current != $Coro::main) {
		1867	warn "can only reload from main coroutine\n";
		1868	return;
		1869	}
1035		1870
1036	$msg->("reloading...");	1871	warn "reloading...";
		1872
		1873	local $FREEZE = 1;
		1874	cf::emergency_save;
1037		1875
1038	eval {	1876	eval {
		1877	# if anything goes wrong in here, we should simply crash as we already saved
		1878
1039	# cancel all watchers	1879	# cancel all watchers
1040	$_->cancel for Event::all_watchers;	1880	for (Event::all_watchers) {
		1881	$_->cancel if $_->data & WF_AUTOCANCEL;
		1882	}
		1883
		1884	# cancel all extension coros
		1885	$_->cancel for values %EXT_CORO;
		1886	%EXT_CORO = ();
1041		1887
1042	# unload all extensions	1888	# unload all extensions
1043	for (@exts) {	1889	for (@exts) {
1044	$msg->("unloading <$_>");	1890	warn "unloading <$_>";
1045	unload_extension $_;	1891	unload_extension $_;
1046	}	1892	}
1047		1893
1048	# unload all modules loaded from $LIBDIR	1894	# unload all modules loaded from $LIBDIR
1049	while (my ($k, $v) = each %INC) {	1895	while (my ($k, $v) = each %INC) {
1050	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1051		1897
1052	$msg->("removing <$k>");	1898	warn "removing <$k>";
1053	delete $INC{$k};	1899	delete $INC{$k};
1054		1900
1055	$k =~ s/\.pm$//;	1901	$k =~ s/\.pm$//;
1056	$k =~ s/\//::/g;	1902	$k =~ s/\//::/g;
1057		1903
…		…
1062	Symbol::delete_package $k;	1908	Symbol::delete_package $k;
1063	}	1909	}
1064		1910
1065	# sync database to disk	1911	# sync database to disk
1066	cf::db_sync;	1912	cf::db_sync;
		1913	IO::AIO::flush;
1067		1914
1068	# get rid of safe::, as good as possible	1915	# get rid of safe::, as good as possible
1069	Symbol::delete_package "safe::$_"	1916	Symbol::delete_package "safe::$_"
1070	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1071		1918
1072	# remove register_script_function callbacks	1919	# remove register_script_function callbacks
1073	# TODO	1920	# TODO
1074		1921
1075	# unload cf.pm "a bit"	1922	# unload cf.pm "a bit"
…		…
1078	# don't, removes xs symbols, too,	1925	# don't, removes xs symbols, too,
1079	# and global variables created in xs	1926	# and global variables created in xs
1080	#Symbol::delete_package __PACKAGE__;	1927	#Symbol::delete_package __PACKAGE__;
1081		1928
1082	# reload cf.pm	1929	# reload cf.pm
1083	$msg->("reloading cf.pm");	1930	warn "reloading cf.pm";
1084	require cf;	1931	require cf;
		1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1085		1933
1086	# load database again	1934	# load config and database again
		1935	cf::cfg_load;
1087	cf::db_load;	1936	cf::db_load;
1088		1937
1089	# load extensions	1938	# load extensions
1090	$msg->("load extensions");	1939	warn "load extensions";
1091	cf::load_extensions;	1940	cf::load_extensions;
1092		1941
1093	# reattach attachments to objects	1942	# reattach attachments to objects
1094	$msg->("reattach");	1943	warn "reattach";
1095	_global_reattach;	1944	_global_reattach;
1096	};	1945	};
1097	$msg->($@) if $@;
1098		1946
1099	$msg->("reloaded");	1947	if ($@) {
		1948	warn $@;
		1949	warn "error while reloading, exiting.";
		1950	exit 1;
		1951	}
		1952
		1953	warn "reloaded successfully";
1100	};	1954	};
1101		1955
1102	sub perl_reload() {	1956	#############################################################################
1103	_perl_reload {
1104	warn $_[0];
1105	print "$_[0]\n";
1106	};
1107	}
1108		1957
		1958	unless ($LINK_MAP) {
		1959	$LINK_MAP = cf::map::new;
		1960
		1961	$LINK_MAP->width (41);
		1962	$LINK_MAP->height (41);
		1963	$LINK_MAP->alloc;
		1964	$LINK_MAP->path ("{link}");
		1965	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		1966	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		1967
		1968	# dirty hack because... archetypes are not yet loaded
		1969	Event->timer (
		1970	after => 2,
		1971	cb => sub {
		1972	$_[0]->w->cancel;
		1973
		1974	# provide some exits "home"
		1975	my $exit = cf::object::new "exit";
		1976
		1977	$exit->slaying ($EMERGENCY_POSITION->[0]);
		1978	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		1979	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		1980
		1981	$LINK_MAP->insert ($exit->clone, 19, 19);
		1982	$LINK_MAP->insert ($exit->clone, 19, 20);
		1983	$LINK_MAP->insert ($exit->clone, 19, 21);
		1984	$LINK_MAP->insert ($exit->clone, 20, 19);
		1985	$LINK_MAP->insert ($exit->clone, 20, 21);
		1986	$LINK_MAP->insert ($exit->clone, 21, 19);
		1987	$LINK_MAP->insert ($exit->clone, 21, 20);
		1988	$LINK_MAP->insert ($exit->clone, 21, 21);
		1989
		1990	$exit->destroy;
		1991	});
		1992
		1993	$LINK_MAP->{deny_save} = 1;
		1994	$LINK_MAP->{deny_reset} = 1;
		1995
		1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		1997	}
		1998
		1999	register "<global>", __PACKAGE__;
		2000
1109	register_command "perl-reload", 0, sub {	2001	register_command "reload" => sub {
1110	my ($who, $arg) = @_;	2002	my ($who, $arg) = @_;
1111		2003
1112	if ($who->flag (FLAG_WIZ)) {	2004	if ($who->flag (FLAG_WIZ)) {
1113	_perl_reload {	2005	$who->message ("start of reload.");
1114	warn $_[0];	2006	reload;
1115	$who->message ($_[0]);	2007	$who->message ("end of reload.");
1116	};
1117	}	2008	}
1118	};	2009	};
1119		2010
1120	register "<global>", __PACKAGE__;
1121
1122	unshift @INC, $LIBDIR;	2011	unshift @INC, $LIBDIR;
1123		2012
1124	$TICK_WATCHER = Event->timer (	2013	$TICK_WATCHER = Event->timer (
		2014	reentrant => 0,
1125	prio => 1,	2015	prio => 0,
1126	at => $NEXT_TICK || 1,	2016	at => $NEXT_TICK || $TICK,
		2017	data => WF_AUTOCANCEL,
1127	cb => sub {	2018	cb => sub {
		2019	unless ($FREEZE) {
1128	cf::server_tick; # one server iteration	2020	cf::server_tick; # one server iteration
		2021	$RUNTIME += $TICK;
		2022	}
1129		2023
1130	my $NOW = Event::time;
1131	$NEXT_TICK += $TICK;	2024	$NEXT_TICK += $TICK;
1132		2025
1133	# if we are delayed by four ticks, skip them all	2026	# if we are delayed by four ticks or more, skip them all
1134	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1135		2028
1136	$TICK_WATCHER->at ($NEXT_TICK);	2029	$TICK_WATCHER->at ($NEXT_TICK);
1137	$TICK_WATCHER->start;	2030	$TICK_WATCHER->start;
1138	},	2031	},
1139	);	2032	);
1140		2033
		2034	IO::AIO::max_poll_time $TICK * 0.2;
		2035
		2036	Event->io (
		2037	fd => IO::AIO::poll_fileno,
		2038	poll => 'r',
		2039	prio => 5,
		2040	data => WF_AUTOCANCEL,
		2041	cb => \&IO::AIO::poll_cb,
		2042	);
		2043
		2044	Event->timer (
		2045	data => WF_AUTOCANCEL,
		2046	after => 0,
		2047	interval => 10,
		2048	cb => sub {
		2049	(Coro::unblock_sub {
		2050	write_runtime
		2051	or warn "ERROR: unable to write runtime file: $!";
		2052	})->();
		2053	},
		2054	);
		2055
1141	1	2056	1
1142		2057

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