ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.45 by root, Sat Aug 26 23:36:32 2006 UTC vs.
Revision 1.95 by root, Fri Dec 22 02:04:20 2006 UTC

…		…
5	use Storable;	5	use Storable;
6	use Opcode;	6	use Opcode;
7	use Safe;	7	use Safe;
8	use Safe::Hole;	8	use Safe::Hole;
9		9
		10	use IO::AIO ();
		11	use YAML::Syck ();
10	use Time::HiRes;	12	use Time::HiRes;
11	use Event;	13	use Event;
12	$Event::Eval = 1; # no idea why this is required, but it is	14	$Event::Eval = 1; # no idea why this is required, but it is
13		15
		16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		17	$YAML::Syck::ImplicitUnicode = 1;
		18
14	use strict;	19	use strict;
15		20
		21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		22
16	our %COMMAND = ();	23	our %COMMAND = ();
		24	our %COMMAND_TIME = ();
		25	our %EXTCMD = ();
		26
		27	_init_vars;
		28
17	our @EVENT;	29	our @EVENT;
18	our %PROP_TYPE;	30	our $LIBDIR = datadir . "/ext";
19	our %PROP_IDX;
20	our $LIBDIR = maps_directory "perl";
21		31
22	our $TICK = MAX_TIME * 1e-6;	32	our $TICK = MAX_TIME * 1e-6;
23	our $TICK_WATCHER;	33	our $TICK_WATCHER;
24	our $NEXT_TICK;	34	our $NEXT_TICK;
		35
		36	our %CFG;
		37
		38	our $UPTIME; $UPTIME ||= time;
		39
		40	#############################################################################
		41
		42	=head2 GLOBAL VARIABLES
		43
		44	=over 4
		45
		46	=item $cf::UPTIME
		47
		48	The timestamp of the server start (so not actually an uptime).
		49
		50	=item $cf::LIBDIR
		51
		52	The perl library directory, where extensions and cf-specific modules can
		53	be found. It will be added to C<@INC> automatically.
		54
		55	=item $cf::TICK
		56
		57	The interval between server ticks, in seconds.
		58
		59	=item %cf::CFG
		60
		61	Configuration for the server, loaded from C</etc/crossfire/config>, or
		62	from wherever your confdir points to.
		63
		64	=back
		65
		66	=cut
25		67
26	BEGIN {	68	BEGIN {
27	*CORE::GLOBAL::warn = sub {	69	*CORE::GLOBAL::warn = sub {
28	my $msg = join "", @_;	70	my $msg = join "", @_;
29	$msg .= "\n"	71	$msg .= "\n"
…		…
32	print STDERR "cfperl: $msg";	74	print STDERR "cfperl: $msg";
33	LOG llevError, "cfperl: $msg";	75	LOG llevError, "cfperl: $msg";
34	};	76	};
35	}	77	}
36		78
37	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!	79	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
38		80	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
39	# generate property mutators	81	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
40	sub prop_gen {	82	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
41	my ($prefix, $class) = @_;	83	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
42
43	no strict 'refs';
44
45	for my $prop (keys %PROP_TYPE) {
46	$prop =~ /^\Q$prefix\E_(.*$)/ or next;
47	my $sub = lc $1;
48
49	my $type = $PROP_TYPE{$prop};
50	my $idx = $PROP_IDX {$prop};
51
52	*{"$class\::get_$sub"} = *{"$class\::$sub"} = sub {
53	$_[0]->get_property ($type, $idx)
54	};
55
56	*{"$class\::set_$sub"} = sub {
57	$_[0]->set_property ($type, $idx, $_[1]);
58	} unless $ignore_set{$prop};
59	}
60	}
61
62	# auto-generate most of the API
63
64	prop_gen OBJECT_PROP => "cf::object";
65	# CFAPI_OBJECT_ANIMATION?
66	prop_gen PLAYER_PROP => "cf::object::player";
67
68	prop_gen MAP_PROP => "cf::map";
69	prop_gen ARCH_PROP => "cf::arch";
70
71	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	84	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
72		85
73	# we bless all objects into (empty) derived classes to force a method lookup	86	# we bless all objects into (empty) derived classes to force a method lookup
74	# within the Safe compartment.	87	# within the Safe compartment.
75	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {	88	for my $pkg (qw(
		89	cf::global
		90	cf::object cf::object::player
		91	cf::client cf::player
		92	cf::arch cf::living
		93	cf::map cf::party cf::region
		94	)) {
76	no strict 'refs';	95	no strict 'refs';
77	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	96	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
78	}	97	}
79		98
80	$Event::DIED = sub {	99	$Event::DIED = sub {
…		…
82	};	101	};
83		102
84	my %ext_pkg;	103	my %ext_pkg;
85	my @exts;	104	my @exts;
86	my @hook;	105	my @hook;
87	my %command;
88	my %extcmd;
89		106
90	#############################################################################	107	=head2 UTILITY FUNCTIONS
91	# utility functions	108
		109	=over 4
		110
		111	=cut
92		112
93	use JSON::Syck (); # TODO# replace by JSON::PC once working	113	use JSON::Syck (); # TODO# replace by JSON::PC once working
		114
		115	=item $ref = cf::from_json $json
		116
		117	Converts a JSON string into the corresponding perl data structure.
		118
		119	=cut
94		120
95	sub from_json($) {	121	sub from_json($) {
96	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	122	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
97	JSON::Syck::Load $_[0]	123	JSON::Syck::Load $_[0]
98	}	124	}
99		125
		126	=item $json = cf::to_json $ref
		127
		128	Converts a perl data structure into its JSON representation.
		129
		130	=cut
		131
100	sub to_json($) {	132	sub to_json($) {
101	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	133	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
102	JSON::Syck::Dump $_[0]	134	JSON::Syck::Dump $_[0]
103	}	135	}
104		136
		137	=back
		138
		139	=cut
		140
105	#############################################################################	141	#############################################################################
106	# "new" plug-in system
107		142
108	=item cf::object::attach ... # NYI	143	=head2 ATTACHABLE OBJECTS
109		144
110	=item cf::attach_global ...	145	Many objects in crossfire are so-called attachable objects. That means you can
		146	attach callbacks/event handlers (a collection of which is called an "attachment")
		147	to it. All such attachable objects support the following methods.
111		148
112	=item cf::attach_to_type $object_type, ...	149	In the following description, CLASS can be any of C<global>, C<object>
		150	C<player>, C<client> or C<map> (i.e. the attachable objects in
		151	crossfire+).
113		152
114	=item cf::attach_to_objects ...	153	=over 4
115		154
116	=item cf::attach_to_players ...	155	=item $attachable->attach ($attachment, key => $value...)
117		156
118	=item cf::attach_to_maps ...	157	=item $attachable->detach ($attachment)
119		158
		159	Attach/detach a pre-registered attachment to a specific object and give it
		160	the specified key/value pairs as arguments.
		161
		162	Example, attach a minesweeper attachment to the given object, making it a
		163	10x10 minesweeper game:
		164
		165	$obj->attach (minesweeper => width => 10, height => 10);
		166
		167	=item $bool = $attachable->attached ($name)
		168
		169	Checks wether the named attachment is currently attached to the object.
		170
		171	=item cf::CLASS->attach ...
		172
		173	=item cf::CLASS->detach ...
		174
		175	Define an anonymous attachment and attach it to all objects of the given
		176	CLASS. See the next function for an explanation of its arguments.
		177
		178	You can attach to global events by using the C<cf::global> class.
		179
		180	Example, log all player logins:
		181
		182	cf::player->attach (
		183	on_login => sub {
		184	my ($pl) = @_;
		185	...
		186	},
		187	);
		188
		189	Example, attach to the jeweler skill:
		190
		191	cf::object->attach (
		192	type => cf::SKILL,
		193	subtype => cf::SK_JEWELER,
		194	on_use_skill => sub {
		195	my ($sk, $ob, $part, $dir, $msg) = @_;
		196	...
		197	},
		198	);
		199
120	=item cf:register_attachment $name, ...	200	=item cf::CLASS::attachment $name, ...
121		201
122	prio => $number, # lower is earlier	202	Register an attachment by C<$name> through which attachable objects of the
123	on_xxx => \&cb,	203	given CLASS can refer to this attachment.
		204
		205	Some classes such as crossfire maps and objects can specify attachments
		206	that are attached at load/instantiate time, thus the need for a name.
		207
		208	These calls expect any number of the following handler/hook descriptions:
		209
		210	=over 4
		211
		212	=item prio => $number
		213
		214	Set the priority for all following handlers/hooks (unless overwritten
		215	by another C<prio> setting). Lower priority handlers get executed
		216	earlier. The default priority is C<0>, and many built-in handlers are
		217	registered at priority C<-1000>, so lower priorities should not be used
		218	unless you know what you are doing.
		219
		220	=item type => $type
		221
		222	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		223	given type of objects only (the additional parameter C<subtype> can be
		224	used to further limit to the given subtype).
		225
		226	=item on_I<event> => \&cb
		227
		228	Call the given code reference whenever the named event happens (event is
		229	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
		230	handlers are recognised generally depends on the type of object these
		231	handlers attach to).
		232
		233	See F<include/eventinc.h> for the full list of events supported, and their
		234	class.
		235
124	package => package::,	236	=item package => package::
		237
		238	Look for sub functions of the name C<< on_I<event> >> in the given
		239	package and register them. Only handlers for eevents supported by the
		240	object/class are recognised.
		241
		242	=back
		243
		244	Example, define an attachment called "sockpuppet" that calls the given
		245	event handler when a monster attacks:
		246
		247	cf::object::attachment sockpuppet =>
		248	on_skill_attack => sub {
		249	my ($self, $victim) = @_;
		250	...
		251	}
		252	}
125		253
126	=cut	254	=cut
127		255
128	# the following variables are defined in .xs and must not be re-created	256	# the following variables are defined in .xs and must not be re-created
129	our @CB_GLOBAL = (); # registry for all global events	257	our @CB_GLOBAL = (); # registry for all global events
130	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	258	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
131	our @CB_PLAYER = ();	259	our @CB_PLAYER = ();
		260	our @CB_CLIENT = ();
132	our @CB_TYPE = (); # registry for type (cf-object class) based events	261	our @CB_TYPE = (); # registry for type (cf-object class) based events
133	our @CB_MAP = ();	262	our @CB_MAP = ();
134		263
135	my %attachment;	264	my %attachment;
136		265
137	sub _attach_cb($\%$$$) {	266	sub _attach_cb($$$$) {
138	my ($registry, $undo, $event, $prio, $cb) = @_;	267	my ($registry, $event, $prio, $cb) = @_;
139		268
140	use sort 'stable';	269	use sort 'stable';
141		270
142	$cb = [$prio, $cb];	271	$cb = [$prio, $cb];
143		272
144	@{$registry->[$event]} = sort	273	@{$registry->[$event]} = sort
145	{ $a->[0] cmp $b->[0] }	274	{ $a->[0] cmp $b->[0] }
146	@{$registry->[$event] || []}, $cb;	275	@{$registry->[$event] || []}, $cb;
147
148	push @{$undo->{cb}}, [$event, $cb];
149	}	276	}
150		277
151	# attach handles attaching event callbacks	278	# attach handles attaching event callbacks
152	# the only thing the caller has to do is pass the correct	279	# the only thing the caller has to do is pass the correct
153	# registry (== where the callback attaches to).	280	# registry (== where the callback attaches to).
154	sub _attach(\@$@) {	281	sub _attach {
155	my ($registry, $klass, @arg) = @_;	282	my ($registry, $klass, @arg) = @_;
156		283
		284	my $object_type;
157	my $prio = 0;	285	my $prio = 0;
158
159	my %undo = (
160	registry => $registry,
161	cb => [],
162	);
163
164	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	286	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
165		287
166	while (@arg) {	288	while (@arg) {
167	my $type = shift @arg;	289	my $type = shift @arg;
168		290
169	if ($type eq "prio") {	291	if ($type eq "prio") {
170	$prio = shift @arg;	292	$prio = shift @arg;
171		293
		294	} elsif ($type eq "type") {
		295	$object_type = shift @arg;
		296	$registry = $CB_TYPE[$object_type] ||= [];
		297
		298	} elsif ($type eq "subtype") {
		299	defined $object_type or Carp::croak "subtype specified without type";
		300	my $object_subtype = shift @arg;
		301	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		302
172	} elsif ($type eq "package") {	303	} elsif ($type eq "package") {
173	my $pkg = shift @arg;	304	my $pkg = shift @arg;
174		305
175	while (my ($name, $id) = each %cb_id) {	306	while (my ($name, $id) = each %cb_id) {
176	if (my $cb = $pkg->can ($name)) {	307	if (my $cb = $pkg->can ($name)) {
177	_attach_cb $registry, %undo, $id, $prio, $cb;	308	_attach_cb $registry, $id, $prio, $cb;
178	}	309	}
179	}	310	}
180		311
181	} elsif (exists $cb_id{$type}) {	312	} elsif (exists $cb_id{$type}) {
182	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;	313	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
183		314
184	} elsif (ref $type) {	315	} elsif (ref $type) {
185	warn "attaching objects not supported, ignoring.\n";	316	warn "attaching objects not supported, ignoring.\n";
186		317
187	} else {	318	} else {
188	shift @arg;	319	shift @arg;
189	warn "attach argument '$type' not supported, ignoring.\n";	320	warn "attach argument '$type' not supported, ignoring.\n";
190	}	321	}
191	}	322	}
192
193	\%undo
194	}	323	}
195		324
196	sub cf::object::attach {	325	sub _object_attach {
197	die;	326	my ($obj, $name, %arg) = @_;
198	}
199		327
200	sub attach_global {	328	return if exists $obj->{_attachment}{$name};
201	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
202	}
203		329
204	sub attach_to_type {	330	if (my $attach = $attachment{$name}) {
205	my $type = shift;	331	my $registry = $obj->registry;
206		332
207	_attach @{$CB_TYPE[$type]}, KLASS_OBJECT, @_	333	for (@$attach) {
208	}	334	my ($klass, @attach) = @$_;
		335	_attach $registry, $klass, @attach;
		336	}
209		337
210	sub attach_to_objects {	338	$obj->{$name} = \%arg;
211	_attach @CB_OBJECT, KLASS_OBJECT, @_	339	} else {
212	}	340	warn "object uses attachment '$name' that is not available, postponing.\n";
		341	}
213		342
214	sub attach_to_players {	343	$obj->{_attachment}{$name} = undef;
215	_attach @CB_PLAYER, KLASS_PLAYER, @_
216	}	344	}
217		345
218	sub attach_to_maps {	346	sub cf::attachable::attach {
219	_attach @CB_MAP, KLASS_MAP, @_	347	if (ref $_[0]) {
220	}	348	_object_attach @_;
		349	} else {
		350	_attach shift->_attach_registry, @_;
		351	}
		352	};
221		353
222	sub register_attachment {	354	# all those should be optimised
		355	sub cf::attachable::detach {
		356	my ($obj, $name) = @_;
		357
		358	if (ref $obj) {
		359	delete $obj->{_attachment}{$name};
		360	reattach ($obj);
		361	} else {
		362	Carp::croak "cannot, currently, detach class attachments";
		363	}
		364	};
		365
		366	sub cf::attachable::attached {
		367	my ($obj, $name) = @_;
		368
		369	exists $obj->{_attachment}{$name}
		370	}
		371
		372	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {
		373	eval "#line " . __LINE__ . " 'cf.pm'
		374	sub cf::\L$klass\E::_attach_registry {
		375	(\\\@CB_$klass, KLASS_$klass)
		376	}
		377
		378	sub cf::\L$klass\E::attachment {
223	my $name = shift;	379	my \$name = shift;
224		380
225	$attachment{$name} = [@_];	381	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		382	}
		383	";
		384	die if $@;
226	}	385	}
227		386
228	our $override;	387	our $override;
229	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	388	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
230		389
…		…
244	for (@$callbacks) {	403	for (@$callbacks) {
245	eval { &{$_->[1]} };	404	eval { &{$_->[1]} };
246		405
247	if ($@) {	406	if ($@) {
248	warn "$@";	407	warn "$@";
249	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	408	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
250	override;	409	override;
251	}	410	}
252		411
253	return 1 if $override;	412	return 1 if $override;
254	}	413	}
255		414
256	0	415	0
257	}	416	}
		417
		418	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...
		419
		420	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
		421
		422	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
		423
		424	=item $bool = $client->invoke (EVENT_CLIENT_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 ATTACHABLE OBJECTS
		441
		442	Attachable objects includes objects, players, clients and maps.
		443
		444	=over 4
		445
		446	=item $object->valid
		447
		448	Just because you have a perl object does not mean that the corresponding
		449	C-level object still exists. If you try to access an object that has no
		450	valid C counterpart anymore you get an exception at runtime. This method
		451	can be used to test for existence of the C object part without causing an
		452	exception.
		453
		454	=back
		455
		456	=cut
258		457
259	#############################################################################	458	#############################################################################
260	# object support	459	# object support
261		460
262	sub instantiate {	461	sub instantiate {
263	my ($obj, $data) = @_;	462	my ($obj, $data) = @_;
264	my $registry = $obj->registry;
265		463
266	$data = from_json $data;	464	$data = from_json $data;
267		465
268	for (@$data) {	466	for (@$data) {
269	my ($pri, $name, @args) = @$_;	467	my ($name, $args) = @$_;
270		468
271	if (my $attach = $attachment{$name}) {	469	$obj->attach ($name, %{$args || {} });
272	_attach @$registry, KLASS_OBJECT, @$attach;
273
274	if (my $cb = delete $registry->[EVENT_OBJECT_INSTANTIATE]) {
275	for (@$cb) {
276	eval { $_->[1]->($obj, @args); };
277	if ($@) {
278	warn "$@";
279	warn "... while processing '$name' instantiate with args <@args>\n";
280	}
281	}
282	}
283	} else {
284	warn "object uses attachment $name that is not available, postponing.\n";
285	}
286
287	push @{$obj->{_attachment}}, $name;
288	}	470	}
289	}	471	}
290		472
291	# basically do the same as instantiate, without calling instantiate	473	# basically do the same as instantiate, without calling instantiate
292	sub reattach {	474	sub reattach {
293	my ($obj) = @_;	475	my ($obj) = @_;
294	my $registry = $obj->registry;	476	my $registry = $obj->registry;
295		477
296	warn "reattach<@_, $_>\n";	478	@$registry = ();
297	}
298		479
299	attach_to_objects	480	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		481
		482	for my $name (keys %{ $obj->{_attachment} || {} }) {
		483	if (my $attach = $attachment{$name}) {
		484	for (@$attach) {
		485	my ($klass, @attach) = @$_;
		486	_attach $registry, $klass, @attach;
		487	}
		488	} else {
		489	warn "object uses attachment '$name' that is not available, postponing.\n";
		490	}
		491	}
		492	}
		493
		494	sub object_freezer_save {
		495	my ($filename, $rdata, $objs) = @_;
		496
		497	if (length $$rdata) {
		498	warn sprintf "saving %s (%d,%d)\n",
		499	$filename, length $$rdata, scalar @$objs;
		500
		501	if (open my $fh, ">:raw", "$filename~") {
		502	chmod SAVE_MODE, $fh;
		503	syswrite $fh, $$rdata;
		504	close $fh;
		505
		506	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
		507	chmod SAVE_MODE, $fh;
		508	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
		509	close $fh;
		510	rename "$filename.pst~", "$filename.pst";
		511	} else {
		512	unlink "$filename.pst";
		513	}
		514
		515	rename "$filename~", $filename;
		516	} else {
		517	warn "FATAL: $filename~: $!\n";
		518	}
		519	} else {
		520	unlink $filename;
		521	unlink "$filename.pst";
		522	}
		523	}
		524
		525	sub object_freezer_as_string {
		526	my ($rdata, $objs) = @_;
		527
		528	use Data::Dumper;
		529
		530	$$rdata . Dumper $objs
		531	}
		532
		533	sub object_thawer_load {
		534	my ($filename) = @_;
		535
		536	local $/;
		537
		538	my $av;
		539
		540	#TODO: use sysread etc.
		541	if (open my $data, "<:raw:perlio", $filename) {
		542	$data = <$data>;
		543	if (open my $pst, "<:raw:perlio", "$filename.pst") {
		544	$av = eval { (Storable::thaw <$pst>)->{objs} };
		545	}
		546	return ($data, $av);
		547	}
		548
		549	()
		550	}
		551
		552	cf::object->attach (
300	prio => -1000000,	553	prio => -1000000,
301	on_clone => sub {	554	on_clone => sub {
302	my ($src, $dst) = @_;	555	my ($src, $dst) = @_;
303		556
304	@{$dst->registry} = @{$src->registry};	557	@{$dst->registry} = @{$src->registry};
305	warn "registry clone ", join ":", @{$src->registry};#d#
306		558
307	%$dst = %$src;	559	%$dst = %$src;
308		560
309	$dst->{_attachment} = [@{ $src->{_attachment} }]	561	%{$dst->{_attachment}} = %{$src->{_attachment}}
310	if exists $src->{_attachment};	562	if exists $src->{_attachment};
311
312	warn "clone<@_>\n";#d#
313	},	563	},
314	;	564	);
315		565
316	#############################################################################	566	#############################################################################
317	# old plug-in events	567	# command handling &c
318		568
319	sub inject_event {	569	=item cf::register_command $name => \&callback($ob,$args);
320	my $extension = shift;
321	my $event_code = shift;
322		570
323	my $cb = $hook[$event_code]{$extension}	571	Register a callback for execution when the client sends the user command
324	or return;	572	$name.
325		573
326	&$cb	574	=cut
327	}
328
329	sub inject_global_event {
330	my $event = shift;
331
332	my $cb = $hook[$event]
333	or return;
334
335	List::Util::max map &$_, values %$cb
336	}
337
338	sub inject_command {
339	my ($name, $obj, $params) = @_;
340
341	for my $cmd (@{ $command{$name} }) {
342	$cmd->[1]->($obj, $params);
343	}
344
345	-1
346	}
347		575
348	sub register_command {	576	sub register_command {
349	my ($name, $time, $cb) = @_;	577	my ($name, $cb) = @_;
350		578
351	my $caller = caller;	579	my $caller = caller;
352	#warn "registering command '$name/$time' to '$caller'";	580	#warn "registering command '$name/$time' to '$caller'";
353		581
354	push @{ $command{$name} }, [$time, $cb, $caller];	582	push @{ $COMMAND{$name} }, [$caller, $cb];
355	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
356	}	583	}
		584
		585	=item cf::register_extcmd $name => \&callback($pl,$packet);
		586
		587	Register a callbackf ro execution when the client sends an extcmd packet.
		588
		589	If the callback returns something, it is sent back as if reply was being
		590	called.
		591
		592	=cut
357		593
358	sub register_extcmd {	594	sub register_extcmd {
359	my ($name, $cb) = @_;	595	my ($name, $cb) = @_;
360		596
361	my $caller = caller;	597	my $caller = caller;
362	#warn "registering extcmd '$name' to '$caller'";	598	#warn "registering extcmd '$name' to '$caller'";
363		599
364	$extcmd{$name} = [$cb, $caller];	600	$EXTCMD{$name} = [$cb, $caller];
365	}	601	}
		602
		603	cf::player->attach (
		604	on_command => sub {
		605	my ($pl, $name, $params) = @_;
		606
		607	my $cb = $COMMAND{$name}
		608	or return;
		609
		610	for my $cmd (@$cb) {
		611	$cmd->[1]->($pl->ob, $params);
		612	}
		613
		614	cf::override;
		615	},
		616	on_extcmd => sub {
		617	my ($pl, $buf) = @_;
		618
		619	my $msg = eval { from_json $buf };
		620
		621	if (ref $msg) {
		622	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		623	if (my %reply = $cb->[0]->($pl, $msg)) {
		624	$pl->ext_reply ($msg->{msgid}, %reply);
		625	}
		626	}
		627	} else {
		628	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		629	}
		630
		631	cf::override;
		632	},
		633	);
366		634
367	sub register {	635	sub register {
368	my ($base, $pkg) = @_;	636	my ($base, $pkg) = @_;
369		637
370	#TODO	638	#TODO
…		…
389	. "#line 1 \"$path\"\n{\n"	657	. "#line 1 \"$path\"\n{\n"
390	. (do { local $/; <$fh> })	658	. (do { local $/; <$fh> })
391	. "\n};\n1";	659	. "\n};\n1";
392		660
393	eval $source	661	eval $source
394	or die "$path: $@";	662	or die $@ ? "$path: $@\n"
		663	: "extension disabled.\n";
395		664
396	push @exts, $pkg;	665	push @exts, $pkg;
397	$ext_pkg{$base} = $pkg;	666	$ext_pkg{$base} = $pkg;
398		667
399	# no strict 'refs';	668	# no strict 'refs';
…		…
412	# for my $idx (0 .. $#PLUGIN_EVENT) {	681	# for my $idx (0 .. $#PLUGIN_EVENT) {
413	# delete $hook[$idx]{$pkg};	682	# delete $hook[$idx]{$pkg};
414	# }	683	# }
415		684
416	# remove commands	685	# remove commands
417	for my $name (keys %command) {	686	for my $name (keys %COMMAND) {
418	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	687	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
419		688
420	if (@cb) {	689	if (@cb) {
421	$command{$name} = \@cb;	690	$COMMAND{$name} = \@cb;
422	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
423	} else {	691	} else {
424	delete $command{$name};
425	delete $COMMAND{"$name\000"};	692	delete $COMMAND{$name};
426	}	693	}
427	}	694	}
428		695
429	# remove extcmds	696	# remove extcmds
430	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	697	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
431	delete $extcmd{$name};	698	delete $EXTCMD{$name};
432	}	699	}
433		700
434	if (my $cb = $pkg->can ("unload")) {	701	if (my $cb = $pkg->can ("unload")) {
435	eval {	702	eval {
436	$cb->($pkg);	703	$cb->($pkg);
…		…
440		707
441	Symbol::delete_package $pkg;	708	Symbol::delete_package $pkg;
442	}	709	}
443		710
444	sub load_extensions {	711	sub load_extensions {
445	my $LIBDIR = maps_directory "perl";
446
447	for my $ext (<$LIBDIR/*.ext>) {	712	for my $ext (<$LIBDIR/*.ext>) {
448	next unless -r $ext;	713	next unless -r $ext;
449	eval {	714	eval {
450	load_extension $ext;	715	load_extension $ext;
451	1	716	1
452	} or warn "$ext not loaded: $@";	717	} or warn "$ext not loaded: $@";
453	}	718	}
454	}	719	}
455		720
456	sub _perl_reload(&) {
457	my ($msg) = @_;
458
459	$msg->("reloading...");
460
461	eval {
462	# 1. cancel all watchers
463	$_->cancel for Event::all_watchers;
464
465	# 2. unload all extensions
466	for (@exts) {
467	$msg->("unloading <$_>");
468	unload_extension $_;
469	}
470
471	# 3. unload all modules loaded from $LIBDIR
472	while (my ($k, $v) = each %INC) {
473	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
474
475	$msg->("removing <$k>");
476	delete $INC{$k};
477
478	$k =~ s/\.pm$//;
479	$k =~ s/\//::/g;
480
481	if (my $cb = $k->can ("unload_module")) {
482	$cb->();
483	}
484
485	Symbol::delete_package $k;
486	}
487
488	# 4. get rid of safe::, as good as possible
489	Symbol::delete_package "safe::$_"
490	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
491
492	# 5. remove register_script_function callbacks
493	# TODO
494
495	# 6. unload cf.pm "a bit"
496	delete $INC{"cf.pm"};
497
498	# don't, removes xs symbols, too,
499	# and global variables created in xs
500	#Symbol::delete_package __PACKAGE__;
501
502	# 7. reload cf.pm
503	$msg->("reloading cf.pm");
504	require cf;
505	};
506	$msg->($@) if $@;
507
508	$msg->("reloaded");
509	};
510
511	sub perl_reload() {
512	_perl_reload {
513	warn $_[0];
514	print "$_[0]\n";
515	};
516	}
517
518	register_command "perl-reload", 0, sub {
519	my ($who, $arg) = @_;
520
521	if ($who->flag (FLAG_WIZ)) {
522	_perl_reload {
523	warn $_[0];
524	$who->message ($_[0]);
525	};
526	}
527	};
528
529	#############################################################################
530	# extcmd framework, basically convert ext <msg>
531	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
532
533	attach_to_players
534	on_extcmd => sub {
535	my ($pl, $buf) = @_;
536
537	my $msg = eval { from_json $buf };
538
539	if (ref $msg) {
540	if (my $cb = $extcmd{$msg->{msgtype}}) {
541	if (my %reply = $cb->[0]->($pl, $msg)) {
542	$pl->ext_reply ($msg->{msgid}, %reply);
543	}
544	}
545	} else {
546	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
547	}
548
549	cf::override;
550	},
551	;
552
553	#############################################################################	721	#############################################################################
554	# load/save/clean perl data associated with a map	722	# load/save/clean perl data associated with a map
555		723
556	*cf::mapsupport::on_clean = sub {	724	*cf::mapsupport::on_clean = sub {
557	my ($map) = @_;	725	my ($map) = @_;
558		726
559	my $path = $map->tmpname;	727	my $path = $map->tmpname;
560	defined $path or return;	728	defined $path or return;
561		729
562	unlink "$path.cfperl";	730	unlink "$path.pst";
563	};	731	};
564		732
565	*cf::mapsupport::on_swapin =
566	*cf::mapsupport::on_load = sub {
567	my ($map) = @_;
568
569	my $path = $map->tmpname;
570	$path = $map->path unless defined $path;
571
572	open my $fh, "<:raw", "$path.cfperl"
573	or return; # no perl data
574
575	my $data = Storable::thaw do { local $/; <$fh> };
576
577	$data->{version} <= 1
578	or return; # too new
579
580	$map->_set_obs ($data->{obs});
581	};
582
583	*cf::mapsupport::on_swapout = sub {
584	my ($map) = @_;
585
586	my $path = $map->tmpname;
587	$path = $map->path unless defined $path;
588
589	my $obs = $map->_get_obs;
590
591	if (defined $obs) {
592	open my $fh, ">:raw", "$path.cfperl"
593	or die "$path.cfperl: $!";
594
595	stat $path;
596
597	print $fh Storable::nfreeze {
598	size => (stat _)[7],
599	time => (stat _)[9],
600	version => 1,
601	obs => $obs,
602	};
603
604	chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g*
605	} else {
606	unlink "$path.cfperl";
607	}
608	};
609
610	attach_to_maps prio => -10000, package => cf::mapsupport::;	733	cf::map->attach (prio => -10000, package => cf::mapsupport::);
611		734
612	#############################################################################	735	#############################################################################
613	# load/save perl data associated with player->ob objects	736	# load/save perl data associated with player->ob objects
614		737
615	sub all_objects(@) {	738	sub all_objects(@) {
616	@_, map all_objects ($_->inv), @_	739	@_, map all_objects ($_->inv), @_
617	}	740	}
618		741
619	attach_to_players	742	# TODO: compatibility cruft, remove when no longer needed
		743	cf::player->attach (
620	on_load => sub {	744	on_load => sub {
621	my ($pl, $path) = @_;	745	my ($pl, $path) = @_;
622		746
623	for my $o (all_objects $pl->ob) {	747	for my $o (all_objects $pl->ob) {
624	if (my $value = $o->get_ob_key_value ("_perl_data")) {	748	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
626		750
627	%$o = %{ Storable::thaw pack "H*", $value };	751	%$o = %{ Storable::thaw pack "H*", $value };
628	}	752	}
629	}	753	}
630	},	754	},
631	on_save => sub {	755	);
632	my ($pl, $path) = @_;
633
634	$_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
635	for grep %$_, all_objects $pl->ob;
636	},
637	;
638		756
639	#############################################################################	757	#############################################################################
640	# core extensions - in perl	758
		759	=head2 CORE EXTENSIONS
		760
		761	Functions and methods that extend core crossfire objects.
		762
		763	=head3 cf::player
		764
		765	=over 4
641		766
642	=item cf::player::exists $login	767	=item cf::player::exists $login
643		768
644	Returns true when the given account exists.	769	Returns true when the given account exists.
645		770
…		…
648	sub cf::player::exists($) {	773	sub cf::player::exists($) {
649	cf::player::find $_[0]	774	cf::player::find $_[0]
650	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	775	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
651	}	776	}
652		777
		778	=item $player->ext_reply ($msgid, $msgtype, %msg)
		779
		780	Sends an ext reply to the player.
		781
		782	=cut
		783
		784	sub cf::player::ext_reply($$$%) {
		785	my ($self, $id, %msg) = @_;
		786
		787	$msg{msgid} = $id;
		788
		789	$self->send ("ext " . to_json \%msg);
		790	}
		791
		792	=back
		793
		794	=head3 cf::object::player
		795
		796	=over 4
		797
653	=item $player->reply ($npc, $msg[, $flags])	798	=item $player_object->reply ($npc, $msg[, $flags])
654		799
655	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	800	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
656	can be C<undef>. Does the right thing when the player is currently in a	801	can be C<undef>. Does the right thing when the player is currently in a
657	dialogue with the given NPC character.	802	dialogue with the given NPC character.
658		803
659	=cut	804	=cut
660		805
661	# rough implementation of a future "reply" method that works	806	# rough implementation of a future "reply" method that works
662	# with dialog boxes.	807	# with dialog boxes.
		808	#TODO: the first argument must go, split into a $npc->reply_to ( method
663	sub cf::object::player::reply($$$;$) {	809	sub cf::object::player::reply($$$;$) {
664	my ($self, $npc, $msg, $flags) = @_;	810	my ($self, $npc, $msg, $flags) = @_;
665		811
666	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	812	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
667		813
…		…
671	$msg = $npc->name . " says: $msg" if $npc;	817	$msg = $npc->name . " says: $msg" if $npc;
672	$self->message ($msg, $flags);	818	$self->message ($msg, $flags);
673	}	819	}
674	}	820	}
675		821
676	=item $player->ext_reply ($msgid, $msgtype, %msg)	822	=item $player_object->may ("access")
677		823
678	Sends an ext reply to the player.	824	Returns wether the given player is authorized to access resource "access"
		825	(e.g. "command_wizcast").
679		826
680	=cut	827	=cut
681		828
682	sub cf::player::ext_reply($$$%) {	829	sub cf::object::player::may {
683	my ($self, $id, %msg) = @_;	830	my ($self, $access) = @_;
684		831
685	$msg{msgid} = $id;	832	$self->flag (cf::FLAG_WIZ) ||
686		833	(ref $cf::CFG{"may_$access"}
687	$self->send ("ext " . to_json \%msg);	834	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		835	: $cf::CFG{"may_$access"})
688	}	836	}
689		837
690	#############################################################################	838	=head3 cf::client
691	# map scripting support	839
		840	=over 4
		841
		842	=item $client->send_drawinfo ($text, $flags)
		843
		844	Sends a drawinfo packet to the client. Circumvents output buffering so
		845	should not be used under normal circumstances.
		846
		847	=cut
		848
		849	sub cf::client::send_drawinfo {
		850	my ($self, $text, $flags) = @_;
		851
		852	utf8::encode $text;
		853	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		854	}
		855
		856
		857	=item $success = $client->query ($flags, "text", \&cb)
		858
		859	Queues a query to the client, calling the given callback with
		860	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		861	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		862
		863	Queries can fail, so check the return code. Or don't, as queries will become
		864	reliable at some point in the future.
		865
		866	=cut
		867
		868	sub cf::client::query {
		869	my ($self, $flags, $text, $cb) = @_;
		870
		871	return unless $self->state == ST_PLAYING
		872	|| $self->state == ST_SETUP
		873	|| $self->state == ST_CUSTOM;
		874
		875	$self->state (ST_CUSTOM);
		876
		877	utf8::encode $text;
		878	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		879
		880	$self->send_packet ($self->{query_queue}[0][0])
		881	if @{ $self->{query_queue} } == 1;
		882	}
		883
		884	cf::client->attach (
		885	on_reply => sub {
		886	my ($ns, $msg) = @_;
		887
		888	# this weird shuffling is so that direct followup queries
		889	# get handled first
		890	my $queue = delete $ns->{query_queue};
		891
		892	(shift @$queue)->[1]->($msg);
		893
		894	push @{ $ns->{query_queue} }, @$queue;
		895
		896	if (@{ $ns->{query_queue} } == @$queue) {
		897	if (@$queue) {
		898	$ns->send_packet ($ns->{query_queue}[0][0]);
		899	} else {
		900	$ns->state (ST_PLAYING);
		901	}
		902	}
		903	},
		904	);
		905
		906	=back
		907
		908
		909	=head2 SAFE SCRIPTING
		910
		911	Functions that provide a safe environment to compile and execute
		912	snippets of perl code without them endangering the safety of the server
		913	itself. Looping constructs, I/O operators and other built-in functionality
		914	is not available in the safe scripting environment, and the number of
		915	functions and methods that can be called is greatly reduced.
		916
		917	=cut
692		918
693	our $safe = new Safe "safe";	919	our $safe = new Safe "safe";
694	our $safe_hole = new Safe::Hole;	920	our $safe_hole = new Safe::Hole;
695		921
696	$SIG{FPE} = 'IGNORE';	922	$SIG{FPE} = 'IGNORE';
697		923
698	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	924	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
699		925
700	# here we export the classes and methods available to script code	926	# here we export the classes and methods available to script code
701		927
		928	=pod
		929
		930	The following fucntions and emthods are available within a safe environment:
		931
		932	cf::object contr pay_amount pay_player map
		933	cf::object::player player
		934	cf::player peaceful
		935	cf::map trigger
		936
		937	=cut
		938
702	for (	939	for (
703	["cf::object" => qw(contr pay_amount pay_player)],	940	["cf::object" => qw(contr pay_amount pay_player map)],
704	["cf::object::player" => qw(player)],	941	["cf::object::player" => qw(player)],
705	["cf::player" => qw(peaceful)],	942	["cf::player" => qw(peaceful)],
		943	["cf::map" => qw(trigger)],
706	) {	944	) {
707	no strict 'refs';	945	no strict 'refs';
708	my ($pkg, @funs) = @$_;	946	my ($pkg, @funs) = @$_;
709	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	947	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
710	for @funs;	948	for @funs;
711	}	949	}
		950
		951	=over 4
		952
		953	=item @retval = safe_eval $code, [var => value, ...]
		954
		955	Compiled and executes the given perl code snippet. additional var/value
		956	pairs result in temporary local (my) scalar variables of the given name
		957	that are available in the code snippet. Example:
		958
		959	my $five = safe_eval '$first + $second', first => 1, second => 4;
		960
		961	=cut
712		962
713	sub safe_eval($;@) {	963	sub safe_eval($;@) {
714	my ($code, %vars) = @_;	964	my ($code, %vars) = @_;
715		965
716	my $qcode = $code;	966	my $qcode = $code;
…		…
739	}	989	}
740		990
741	wantarray ? @res : $res[0]	991	wantarray ? @res : $res[0]
742	}	992	}
743		993
		994	=item cf::register_script_function $function => $cb
		995
		996	Register a function that can be called from within map/npc scripts. The
		997	function should be reasonably secure and should be put into a package name
		998	like the extension.
		999
		1000	Example: register a function that gets called whenever a map script calls
		1001	C<rent::overview>, as used by the C<rent> extension.
		1002
		1003	cf::register_script_function "rent::overview" => sub {
		1004	...
		1005	};
		1006
		1007	=cut
		1008
744	sub register_script_function {	1009	sub register_script_function {
745	my ($fun, $cb) = @_;	1010	my ($fun, $cb) = @_;
746		1011
747	no strict 'refs';	1012	no strict 'refs';
748	*{"safe::$fun"} = $safe_hole->wrap ($cb);	1013	*{"safe::$fun"} = $safe_hole->wrap ($cb);
749	}	1014	}
750		1015
		1016	=back
		1017
		1018	=cut
		1019
		1020	#############################################################################
		1021
		1022	=head2 EXTENSION DATABASE SUPPORT
		1023
		1024	Crossfire maintains a very simple database for extension use. It can
		1025	currently store anything that can be serialised using Storable, which
		1026	excludes objects.
		1027
		1028	The parameter C<$family> should best start with the name of the extension
		1029	using it, it should be unique.
		1030
		1031	=over 4
		1032
		1033	=item $hashref = cf::db_get $family
		1034
		1035	Return a hashref for use by the extension C<$family>, which can be
		1036	modified. After modifications, you have to call C<cf::db_dirty> or
		1037	C<cf::db_sync>.
		1038
		1039	=item $value = cf::db_get $family => $key
		1040
		1041	Returns a single value from the database
		1042
		1043	=item cf::db_put $family => $hashref
		1044
		1045	Stores the given family hashref into the database. Updates are delayed, if
		1046	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		1047
		1048	=item cf::db_put $family => $key => $value
		1049
		1050	Stores the given C<$value> in the family hash. Updates are delayed, if you
		1051	want the data to be synced to disk immediately, use C<cf::db_sync>.
		1052
		1053	=item cf::db_dirty
		1054
		1055	Marks the database as dirty, to be updated at a later time.
		1056
		1057	=item cf::db_sync
		1058
		1059	Immediately write the database to disk I<if it is dirty>.
		1060
		1061	=cut
		1062
		1063	our $DB;
		1064
		1065	{
		1066	my $path = cf::localdir . "/database.pst";
		1067
		1068	sub db_load() {
		1069	warn "loading database $path\n";#d# remove later
		1070	$DB = stat $path ? Storable::retrieve $path : { };
		1071	}
		1072
		1073	my $pid;
		1074
		1075	sub db_save() {
		1076	warn "saving database $path\n";#d# remove later
		1077	waitpid $pid, 0 if $pid;
		1078	if (0 == ($pid = fork)) {
		1079	$DB->{_meta}{version} = 1;
		1080	Storable::nstore $DB, "$path~";
		1081	rename "$path~", $path;
		1082	cf::_exit 0 if defined $pid;
		1083	}
		1084	}
		1085
		1086	my $dirty;
		1087
		1088	sub db_sync() {
		1089	db_save if $dirty;
		1090	undef $dirty;
		1091	}
		1092
		1093	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
		1094	db_sync;
		1095	});
		1096
		1097	sub db_dirty() {
		1098	$dirty = 1;
		1099	$idle->start;
		1100	}
		1101
		1102	sub db_get($;$) {
		1103	@_ >= 2
		1104	? $DB->{$_[0]}{$_[1]}
		1105	: ($DB->{$_[0]} ||= { })
		1106	}
		1107
		1108	sub db_put($$;$) {
		1109	if (@_ >= 3) {
		1110	$DB->{$_[0]}{$_[1]} = $_[2];
		1111	} else {
		1112	$DB->{$_[0]} = $_[1];
		1113	}
		1114	db_dirty;
		1115	}
		1116
		1117	cf::global->attach (
		1118	prio => 10000,
		1119	on_cleanup => sub {
		1120	db_sync;
		1121	},
		1122	);
		1123	}
		1124
751	#############################################################################	1125	#############################################################################
752	# the server's main()	1126	# the server's main()
753		1127
		1128	sub cfg_load {
		1129	open my $fh, "<:utf8", cf::confdir . "/config"
		1130	or return;
		1131
		1132	local $/;
		1133	*CFG = YAML::Syck::Load <$fh>;
		1134	}
		1135
754	sub main {	1136	sub main {
		1137	cfg_load;
		1138	db_load;
		1139	load_extensions;
755	Event::loop;	1140	Event::loop;
756	}	1141	}
757		1142
758	#############################################################################	1143	#############################################################################
759	# initialisation	1144	# initialisation
760		1145
		1146	sub _perl_reload(&) {
		1147	my ($msg) = @_;
		1148
		1149	$msg->("reloading...");
		1150
		1151	eval {
		1152	# cancel all watchers
		1153	for (Event::all_watchers) {
		1154	$_->cancel if $_->data & WF_AUTOCANCEL;
		1155	}
		1156
		1157	# unload all extensions
		1158	for (@exts) {
		1159	$msg->("unloading <$_>");
		1160	unload_extension $_;
		1161	}
		1162
		1163	# unload all modules loaded from $LIBDIR
		1164	while (my ($k, $v) = each %INC) {
		1165	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		1166
		1167	$msg->("removing <$k>");
		1168	delete $INC{$k};
		1169
		1170	$k =~ s/\.pm$//;
		1171	$k =~ s/\//::/g;
		1172
		1173	if (my $cb = $k->can ("unload_module")) {
		1174	$cb->();
		1175	}
		1176
		1177	Symbol::delete_package $k;
		1178	}
		1179
		1180	# sync database to disk
		1181	cf::db_sync;
		1182
		1183	# get rid of safe::, as good as possible
		1184	Symbol::delete_package "safe::$_"
		1185	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
		1186
		1187	# remove register_script_function callbacks
		1188	# TODO
		1189
		1190	# unload cf.pm "a bit"
		1191	delete $INC{"cf.pm"};
		1192
		1193	# don't, removes xs symbols, too,
		1194	# and global variables created in xs
		1195	#Symbol::delete_package __PACKAGE__;
		1196
		1197	# reload cf.pm
		1198	$msg->("reloading cf.pm");
		1199	require cf;
		1200
		1201	# load config and database again
		1202	cf::cfg_load;
		1203	cf::db_load;
		1204
		1205	# load extensions
		1206	$msg->("load extensions");
		1207	cf::load_extensions;
		1208
		1209	# reattach attachments to objects
		1210	$msg->("reattach");
		1211	_global_reattach;
		1212	};
		1213	$msg->($@) if $@;
		1214
		1215	$msg->("reloaded");
		1216	};
		1217
		1218	sub perl_reload() {
		1219	_perl_reload {
		1220	warn $_[0];
		1221	print "$_[0]\n";
		1222	};
		1223	}
		1224
761	register "<global>", __PACKAGE__;	1225	register "<global>", __PACKAGE__;
762		1226
		1227	register_command "perl-reload" => sub {
		1228	my ($who, $arg) = @_;
		1229
		1230	if ($who->flag (FLAG_WIZ)) {
		1231	_perl_reload {
		1232	warn $_[0];
		1233	$who->message ($_[0]);
		1234	};
		1235	}
		1236	};
		1237
763	unshift @INC, $LIBDIR;	1238	unshift @INC, $LIBDIR;
764		1239
765	load_extensions;
766
767	$TICK_WATCHER = Event->timer (	1240	$TICK_WATCHER = Event->timer (
768	prio => 1,	1241	prio => 0,
769	at => $NEXT_TICK || 1,	1242	at => $NEXT_TICK || 1,
		1243	data => WF_AUTOCANCEL,
770	cb => sub {	1244	cb => sub {
771	cf::server_tick; # one server iteration	1245	cf::server_tick; # one server iteration
772		1246
773	my $NOW = Event::time;	1247	my $NOW = Event::time;
774	$NEXT_TICK += $TICK;	1248	$NEXT_TICK += $TICK;
775		1249
776	# if we are delayed by four ticks, skip them all	1250	# if we are delayed by four ticks or more, skip them all
777	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1251	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
778		1252
779	$TICK_WATCHER->at ($NEXT_TICK);	1253	$TICK_WATCHER->at ($NEXT_TICK);
780	$TICK_WATCHER->start;	1254	$TICK_WATCHER->start;
781	},	1255	},
782	);	1256	);
783		1257
		1258	IO::AIO::max_poll_time $TICK * 0.2;
		1259
		1260	Event->io (fd => IO::AIO::poll_fileno,
		1261	poll => 'r',
		1262	prio => 5,
		1263	data => WF_AUTOCANCEL,
		1264	cb => \&IO::AIO::poll_cb);
		1265
784	1	1266	1
785		1267

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines