[ViewVC] Diff of: cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.19 by root, Sun Jul 16 17:15:39 2006 UTC vs.
Revision 1.65 by root, Tue Sep 12 22:18:55 2006 UTC

…		…
1	package cf;	1	package cf;
2		2
3	use Symbol;	3	use Symbol;
4	use List::Util;	4	use List::Util;
5	use Storable;	5	use Storable;
		6	use Opcode;
		7	use Safe;
		8	use Safe::Hole;
6		9
		10	use Time::HiRes;
7	use Event;	11	use Event;
8	$Event::Eval = 1; # no idea why this is required, but it is	12	$Event::Eval = 1; # no idea why this is required, but it is
9		13
10	use strict;	14	use strict;
11		15
		16	_init_vars;
		17
12	our %COMMAND;	18	our %COMMAND = ();
13	our @EVENT;	19	our @EVENT;
14	our %PROP_TYPE;	20	our $LIBDIR = maps_directory "perl";
15	our %PROP_IDX;	21
		22	our $TICK = MAX_TIME * 1e-6;
		23	our $TICK_WATCHER;
		24	our $NEXT_TICK;
16		25
17	BEGIN {	26	BEGIN {
18	@EVENT = map lc, @EVENT;
19
20	*CORE::GLOBAL::warn = sub {	27	*CORE::GLOBAL::warn = sub {
21	my $msg = join "", @_;	28	my $msg = join "", @_;
22	$msg .= "\n"	29	$msg .= "\n"
23	unless $msg =~ /\n$/;	30	unless $msg =~ /\n$/;
24		31
25	print STDERR "cfperl: $msg";	32	print STDERR "cfperl: $msg";
26	LOG llevError, "cfperl: $msg";	33	LOG llevError, "cfperl: $msg";
27	};	34	};
28	}	35	}
29		36
30	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!	37	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
31		38
32	# generate property mutators	39	# we bless all objects into (empty) derived classes to force a method lookup
33	sub prop_gen {	40	# within the Safe compartment.
34	my ($prefix, $class) = @_;	41	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {
35
36	no strict 'refs';	42	no strict 'refs';
37		43	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
38	for my $prop (keys %PROP_TYPE) {
39	$prop =~ /^\Q$prefix\E_(.*$)/ or next;
40	my $sub = lc $1;
41
42	my $type = $PROP_TYPE{$prop};
43	my $idx = $PROP_IDX {$prop};
44
45	{"$class\::get_$sub"} = {"$class\::$sub"} = sub {
46	$_[0]->get_property ($type, $idx)
47	};
48
49	*{"$class\::set_$sub"} = sub {
50	$_[0]->set_property ($type, $idx, $_[1]);
51	} unless $ignore_set{$prop};
52	}
53	}	44	}
54
55	# auto-generate most of the API
56
57	prop_gen OBJECT_PROP => "cf::object";
58	# CFAPI_OBJECT_ANIMATION?
59	prop_gen PLAYER_PROP => "cf::object::player";
60
61	prop_gen MAP_PROP => "cf::map";
62	prop_gen ARCH_PROP => "cf::arch";
63
64	# guessed hierarchies
65
66	@cf::object::player::ISA = 'cf::object';
67	@cf::object::map::ISA = 'cf::object';
68		45
69	$Event::DIED = sub {	46	$Event::DIED = sub {
70	warn "error in event callback: @_";	47	warn "error in event callback: @_";
71	};	48	};
72		49
74	my @exts;	51	my @exts;
75	my @hook;	52	my @hook;
76	my %command;	53	my %command;
77	my %extcmd;	54	my %extcmd;
78		55
		56	#############################################################################
		57	# utility functions
		58
		59	use JSON::Syck (); # TODO# replace by JSON::PC once working
		60
		61	sub from_json($) {
		62	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
		63	JSON::Syck::Load $_[0]
		64	}
		65
		66	sub to_json($) {
		67	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
		68	JSON::Syck::Dump $_[0]
		69	}
		70
		71	#############################################################################
		72	# "new" plug-in system
		73
		74	=head3 EVENTS AND OBJECT ATTACHMENTS
		75
		76	=over 4
		77
		78	=item $object->attach ($attachment, key => $value...)
		79
		80	=item $object->detach ($attachment)
		81
		82	Attach/detach a pre-registered attachment to an object.
		83
		84	=item $player->attach ($attachment, key => $value...)
		85
		86	=item $player->detach ($attachment)
		87
		88	Attach/detach a pre-registered attachment to a player.
		89
		90	=item $map->attach ($attachment, key => $value...)
		91
		92	=item $map->detach ($attachment)
		93
		94	Attach/detach a pre-registered attachment to a map.
		95
		96	=item $bool = $object->attached ($name)
		97
		98	=item $bool = $player->attached ($name)
		99
		100	=item $bool = $map->attached ($name)
		101
		102	Checks wether the named attachment is currently attached to the object.
		103
		104	=item cf::attach_global ...
		105
		106	Attach handlers for global events.
		107
		108	This and all following C<attach_*>-functions expect any number of the
		109	following handler/hook descriptions:
		110
		111	=over 4
		112
		113	=item prio => $number
		114
		115	Set the priority for all following handlers/hooks (unless overwritten
		116	by another C<prio> setting). Lower priority handlers get executed
		117	earlier. The default priority is C<0>, and many built-in handlers are
		118	registered at priority C<-1000>, so lower priorities should not be used
		119	unless you know what you are doing.
		120
		121	=item on_I<event> => \&cb
		122
		123	Call the given code reference whenever the named event happens (event is
		124	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
		125	handlers are recognised generally depends on the type of object these
		126	handlers attach to).
		127
		128	See F<include/eventinc.h> for the full list of events supported, and their
		129	class.
		130
		131	=item package => package::
		132
		133	Look for sub functions of the name C<< on_I<event> >> in the given
		134	package and register them. Only handlers for eevents supported by the
		135	object/class are recognised.
		136
		137	=back
		138
		139	=item cf::attach_to_type $object_type, $subtype, ...
		140
		141	Attach handlers for a specific object type (e.g. TRANSPORT) and
		142	subtype. If C<$subtype> is zero or undef, matches all objects of the given
		143	type.
		144
		145	=item cf::attach_to_objects ...
		146
		147	Attach handlers to all objects. Do not use this except for debugging or
		148	very rare events, as handlers are (obviously) called for I<all> objects in
		149	the game.
		150
		151	=item cf::attach_to_players ...
		152
		153	Attach handlers to all players.
		154
		155	=item cf::attach_to_maps ...
		156
		157	Attach handlers to all maps.
		158
		159	=item cf:register_attachment $name, ...
		160
		161	Register an attachment by name through which objects can refer to this
		162	attachment.
		163
		164	=item cf:register_player_attachment $name, ...
		165
		166	Register an attachment by name through which players can refer to this
		167	attachment.
		168
		169	=item cf:register_map_attachment $name, ...
		170
		171	Register an attachment by name through which maps can refer to this
		172	attachment.
		173
		174	=cut
		175
		176	# the following variables are defined in .xs and must not be re-created
		177	our @CB_GLOBAL = (); # registry for all global events
		178	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		179	our @CB_PLAYER = ();
		180	our @CB_TYPE = (); # registry for type (cf-object class) based events
		181	our @CB_MAP = ();
		182
		183	my %attachment;
		184
		185	sub _attach_cb($\%$$$) {
		186	my ($registry, $undo, $event, $prio, $cb) = @_;
		187
		188	use sort 'stable';
		189
		190	$cb = [$prio, $cb];
		191
		192	@{$registry->[$event]} = sort
		193	{ $a->[0] cmp $b->[0] }
		194	@{$registry->[$event] \|\| []}, $cb;
		195
		196	push @{$undo->{cb}}, [$event, $cb];
		197	}
		198
		199	# attach handles attaching event callbacks
		200	# the only thing the caller has to do is pass the correct
		201	# registry (== where the callback attaches to).
		202	sub _attach(\@$@) {
		203	my ($registry, $klass, @arg) = @_;
		204
		205	my $prio = 0;
		206
		207	my %undo = (
		208	registry => $registry,
		209	cb => [],
		210	);
		211
		212	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		213
		214	while (@arg) {
		215	my $type = shift @arg;
		216
		217	if ($type eq "prio") {
		218	$prio = shift @arg;
		219
		220	} elsif ($type eq "package") {
		221	my $pkg = shift @arg;
		222
		223	while (my ($name, $id) = each %cb_id) {
		224	if (my $cb = $pkg->can ($name)) {
		225	_attach_cb $registry, %undo, $id, $prio, $cb;
		226	}
		227	}
		228
		229	} elsif (exists $cb_id{$type}) {
		230	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
		231
		232	} elsif (ref $type) {
		233	warn "attaching objects not supported, ignoring.\n";
		234
		235	} else {
		236	shift @arg;
		237	warn "attach argument '$type' not supported, ignoring.\n";
		238	}
		239	}
		240
		241	\%undo
		242	}
		243
		244	sub _attach_attachment {
		245	my ($obj, $name, %arg) = @_;
		246
		247	return if exists $obj->{_attachment}{$name};
		248
		249	my $res;
		250
		251	if (my $attach = $attachment{$name}) {
		252	my $registry = $obj->registry;
		253
		254	for (@$attach) {
		255	my ($klass, @attach) = @$_;
		256	$res = _attach @$registry, $klass, @attach;
		257	}
		258
		259	$obj->{$name} = \%arg;
		260	} else {
		261	warn "object uses attachment '$name' that is not available, postponing.\n";
		262	}
		263
		264	$obj->{_attachment}{$name} = undef;
		265
		266	$res->{attachment} = $name;
		267	$res
		268	}
		269
		270	*cf::object::attach =
		271	*cf::player::attach =
		272	*cf::map::attach = sub {
		273	my ($obj, $name, %arg) = @_;
		274
		275	_attach_attachment $obj, $name, %arg;
		276	};
		277
		278	# all those should be optimised
		279	*cf::object::detach =
		280	*cf::player::detach =
		281	*cf::map::detach = sub {
		282	my ($obj, $name) = @_;
		283
		284	delete $obj->{_attachment}{$name};
		285	reattach ($obj);
		286	};
		287
		288	*cf::object::attached =
		289	*cf::player::attached =
		290	*cf::map::attached = sub {
		291	my ($obj, $name) = @_;
		292
		293	exists $obj->{_attachment}{$name}
		294	};
		295
		296	sub attach_global {
		297	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
		298	}
		299
		300	sub attach_to_type {
		301	my $type = shift;
		302	my $subtype = shift;
		303
		304	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
		305	}
		306
		307	sub attach_to_objects {
		308	_attach @CB_OBJECT, KLASS_OBJECT, @_
		309	}
		310
		311	sub attach_to_players {
		312	_attach @CB_PLAYER, KLASS_PLAYER, @_
		313	}
		314
		315	sub attach_to_maps {
		316	_attach @CB_MAP, KLASS_MAP, @_
		317	}
		318
		319	sub register_attachment {
		320	my $name = shift;
		321
		322	$attachment{$name} = [[KLASS_OBJECT, @_]];
		323	}
		324
		325	sub register_player_attachment {
		326	my $name = shift;
		327
		328	$attachment{$name} = [[KLASS_PLAYER, @_]];
		329	}
		330
		331	sub register_map_attachment {
		332	my $name = shift;
		333
		334	$attachment{$name} = [[KLASS_MAP, @_]];
		335	}
		336
		337	our $override;
		338	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		339
		340	sub override {
		341	$override = 1;
		342	@invoke_results = ();
		343	}
		344
		345	sub do_invoke {
		346	my $event = shift;
		347	my $callbacks = shift;
		348
		349	@invoke_results = ();
		350
		351	local $override;
		352
		353	for (@$callbacks) {
		354	eval { &{$_->[1]} };
		355
		356	if ($@) {
		357	warn "$@";
		358	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		359	override;
		360	}
		361
		362	return 1 if $override;
		363	}
		364
		365	0
		366	}
		367
		368	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...
		369
		370	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
		371
		372	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
		373
		374	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
		375
		376	Generate a global/object/player/map-specific event with the given arguments.
		377
		378	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
		379	removed in future versions), and there is no public API to access override
		380	results (if you must, access C<@cf::invoke_results> directly).
		381
		382	=back
		383
		384	=head2 methods valid for all pointers
		385
		386	=over 4
		387
		388	=item $object->valid
		389
		390	=item $player->valid
		391
		392	=item $map->valid
		393
		394	Just because you have a perl object does not mean that the corresponding
		395	C-level object still exists. If you try to access an object that has no
		396	valid C counterpart anymore you get an exception at runtime. This method
		397	can be used to test for existence of the C object part without causing an
		398	exception.
		399
		400	=back
		401
		402	=cut
		403
		404	*cf::object::valid =
		405	*cf::player::valid =
		406	*cf::map::valid = \&cf::_valid;
		407
		408	#############################################################################
		409	# object support
		410
		411	sub instantiate {
		412	my ($obj, $data) = @_;
		413
		414	$data = from_json $data;
		415
		416	for (@$data) {
		417	my ($name, $args) = @$_;
		418
		419	$obj->attach ($name, %{$args \|\| {} });
		420	}
		421	}
		422
		423	# basically do the same as instantiate, without calling instantiate
		424	sub reattach {
		425	my ($obj) = @_;
		426	my $registry = $obj->registry;
		427
		428	@$registry = ();
		429
		430	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };
		431
		432	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {
		433	if (my $attach = $attachment{$name}) {
		434	for (@$attach) {
		435	my ($klass, @attach) = @$_;
		436	_attach @$registry, $klass, @attach;
		437	}
		438	} else {
		439	warn "object uses attachment '$name' that is not available, postponing.\n";
		440	}
		441	}
		442	}
		443
		444	sub object_freezer_save {
		445	my ($filename, $rdata, $objs) = @_;
		446
		447	if (length $$rdata) {
		448	warn sprintf "saving %s (%d,%d)\n",
		449	$filename, length $$rdata, scalar @$objs;
		450
		451	if (open my $fh, ">:raw", "$filename~") {
		452	chmod SAVE_MODE, $fh;
		453	syswrite $fh, $$rdata;
		454	close $fh;
		455
		456	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
		457	chmod SAVE_MODE, $fh;
		458	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
		459	close $fh;
		460	rename "$filename.pst~", "$filename.pst";
		461	} else {
		462	unlink "$filename.pst";
		463	}
		464
		465	rename "$filename~", $filename;
		466	} else {
		467	warn "FATAL: $filename~: $!\n";
		468	}
		469	} else {
		470	unlink $filename;
		471	unlink "$filename.pst";
		472	}
		473	}
		474
		475	sub object_thawer_load {
		476	my ($filename) = @_;
		477
		478	local $/;
		479
		480	my $av;
		481
		482	#TODO: use sysread etc.
		483	if (open my $data, "<:raw:perlio", $filename) {
		484	$data = <$data>;
		485	if (open my $pst, "<:raw:perlio", "$filename.pst") {
		486	$av = eval { (Storable::thaw <$pst>)->{objs} };
		487	}
		488	return ($data, $av);
		489	}
		490
		491	()
		492	}
		493
		494	attach_to_objects
		495	prio => -1000000,
		496	on_clone => sub {
		497	my ($src, $dst) = @_;
		498
		499	@{$dst->registry} = @{$src->registry};
		500
		501	%$dst = %$src;
		502
		503	%{$dst->{_attachment}} = %{$src->{_attachment}}
		504	if exists $src->{_attachment};
		505	},
		506	;
		507
		508	#############################################################################
		509	# old plug-in events
		510
79	sub inject_event {	511	sub inject_event {
80	my $extension = shift;	512	my $extension = shift;
81	my $event_code = shift;	513	my $event_code = shift;
82		514
83	my $cb = $hook[$event_code]{$extension}	515	my $cb = $hook[$event_code]{$extension}
…		…
125	}	557	}
126		558
127	sub register {	559	sub register {
128	my ($base, $pkg) = @_;	560	my ($base, $pkg) = @_;
129		561
130	for my $idx (0 .. $#EVENT) {	562	#TODO
131	if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {
132	#warn "registering $EVENT[$idx] hook to '$pkg'\n";
133	$hook[$idx]{$base} = $ref;
134	}
135	}
136	}	563	}
137		564
138	sub load_extension {	565	sub load_extension {
139	my ($path) = @_;	566	my ($path) = @_;
140		567
141	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	568	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
142	my $base = $1;	569	my $base = $1;
143	my $pkg = $1;	570	my $pkg = $1;
144	$pkg =~ s/[^[:word:]]/_/g;	571	$pkg =~ s/[^[:word:]]/_/g;
145	$pkg = "cf::ext::$pkg";	572	$pkg = "ext::$pkg";
146		573
147	warn "loading '$path' into '$pkg'\n";	574	warn "loading '$path' into '$pkg'\n";
148		575
149	open my $fh, "<:utf8", $path	576	open my $fh, "<:utf8", $path
150	or die "$path: $!";	577	or die "$path: $!";
…		…
160		587
161	push @exts, $pkg;	588	push @exts, $pkg;
162	$ext_pkg{$base} = $pkg;	589	$ext_pkg{$base} = $pkg;
163		590
164	# no strict 'refs';	591	# no strict 'refs';
165	# @{"$pkg\::ISA"} = cf::ext::;	592	# @{"$pkg\::ISA"} = ext::;
166		593
167	register $base, $pkg;	594	register $base, $pkg;
168	}	595	}
169		596
170	sub unload_extension {	597	sub unload_extension {
171	my ($pkg) = @_;	598	my ($pkg) = @_;
172		599
173	warn "removing extension $pkg\n";	600	warn "removing extension $pkg\n";
174		601
175	# remove hooks	602	# remove hooks
		603	#TODO
176	for my $idx (0 .. $#EVENT) {	604	# for my $idx (0 .. $#PLUGIN_EVENT) {
177	delete $hook[$idx]{$pkg};	605	# delete $hook[$idx]{$pkg};
178	}	606	# }
179		607
180	# remove commands	608	# remove commands
181	for my $name (keys %command) {	609	for my $name (keys %command) {
182	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	610	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
183		611
…		…
193	# remove extcmds	621	# remove extcmds
194	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	622	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
195	delete $extcmd{$name};	623	delete $extcmd{$name};
196	}	624	}
197		625
		626	if (my $cb = $pkg->can ("unload")) {
		627	eval {
		628	$cb->($pkg);
		629	1
		630	} or warn "$pkg unloaded, but with errors: $@";
		631	}
		632
198	Symbol::delete_package $pkg;	633	Symbol::delete_package $pkg;
199	}	634	}
200		635
201	sub load_extensions {	636	sub load_extensions {
202	my $LIBDIR = maps_directory "perl";	637	my $LIBDIR = maps_directory "perl";
…		…
208	1	643	1
209	} or warn "$ext not loaded: $@";	644	} or warn "$ext not loaded: $@";
210	}	645	}
211	}	646	}
212		647
		648	#############################################################################
		649	# extcmd framework, basically convert ext <msg>
		650	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
		651
		652	attach_to_players
		653	on_extcmd => sub {
		654	my ($pl, $buf) = @_;
		655
		656	my $msg = eval { from_json $buf };
		657
		658	if (ref $msg) {
		659	if (my $cb = $extcmd{$msg->{msgtype}}) {
		660	if (my %reply = $cb->[0]->($pl, $msg)) {
		661	$pl->ext_reply ($msg->{msgid}, %reply);
		662	}
		663	}
		664	} else {
		665	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		666	}
		667
		668	cf::override;
		669	},
		670	;
		671
		672	#############################################################################
		673	# load/save/clean perl data associated with a map
		674
		675	*cf::mapsupport::on_clean = sub {
		676	my ($map) = @_;
		677
		678	my $path = $map->tmpname;
		679	defined $path or return;
		680
		681	unlink "$path.pst";
		682	};
		683
		684	attach_to_maps prio => -10000, package => cf::mapsupport::;
		685
		686	#############################################################################
		687	# load/save perl data associated with player->ob objects
		688
		689	sub all_objects(@) {
		690	@_, map all_objects ($_->inv), @_
		691	}
		692
		693	# TODO: compatibility cruft, remove when no longer needed
		694	attach_to_players
		695	on_load => sub {
		696	my ($pl, $path) = @_;
		697
		698	for my $o (all_objects $pl->ob) {
		699	if (my $value = $o->get_ob_key_value ("_perl_data")) {
		700	$o->set_ob_key_value ("_perl_data");
		701
		702	%$o = %{ Storable::thaw pack "H*", $value };
		703	}
		704	}
		705	},
		706	;
		707
		708	#############################################################################
		709	# core extensions - in perl
		710
		711	=item cf::player::exists $login
		712
		713	Returns true when the given account exists.
		714
		715	=cut
		716
		717	sub cf::player::exists($) {
		718	cf::player::find $_[0]
		719	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
		720	}
		721
		722	=item $player->reply ($npc, $msg[, $flags])
		723
		724	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
		725	can be C<undef>. Does the right thing when the player is currently in a
		726	dialogue with the given NPC character.
		727
		728	=cut
		729
		730	# rough implementation of a future "reply" method that works
		731	# with dialog boxes.
		732	sub cf::object::player::reply($$$;$) {
		733	my ($self, $npc, $msg, $flags) = @_;
		734
		735	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
		736
		737	if ($self->{record_replies}) {
		738	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		739	} else {
		740	$msg = $npc->name . " says: $msg" if $npc;
		741	$self->message ($msg, $flags);
		742	}
		743	}
		744
		745	=item $player->ext_reply ($msgid, $msgtype, %msg)
		746
		747	Sends an ext reply to the player.
		748
		749	=cut
		750
		751	sub cf::player::ext_reply($$$%) {
		752	my ($self, $id, %msg) = @_;
		753
		754	$msg{msgid} = $id;
		755
		756	$self->send ("ext " . to_json \%msg);
		757	}
		758
		759	#############################################################################
		760	# map scripting support
		761
		762	our $safe = new Safe "safe";
		763	our $safe_hole = new Safe::Hole;
		764
		765	$SIG{FPE} = 'IGNORE';
		766
		767	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
		768
		769	# here we export the classes and methods available to script code
		770
		771	for (
		772	["cf::object" => qw(contr pay_amount pay_player)],
		773	["cf::object::player" => qw(player)],
		774	["cf::player" => qw(peaceful)],
		775	) {
		776	no strict 'refs';
		777	my ($pkg, @funs) = @$_;
		778	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
		779	for @funs;
		780	}
		781
		782	sub safe_eval($;@) {
		783	my ($code, %vars) = @_;
		784
		785	my $qcode = $code;
		786	$qcode =~ s/"/‟/g; # not allowed in #line filenames
		787	$qcode =~ s/\n/\\n/g;
		788
		789	local $_;
		790	local @safe::cf::_safe_eval_args = values %vars;
		791
		792	my $eval =
		793	"do {\n"
		794	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
		795	. "#line 0 \"{$qcode}\"\n"
		796	. $code
		797	. "\n}"
		798	;
		799
		800	sub_generation_inc;
		801	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
		802	sub_generation_inc;
		803
		804	if ($@) {
		805	warn "$@";
		806	warn "while executing safe code '$code'\n";
		807	warn "with arguments " . (join " ", %vars) . "\n";
		808	}
		809
		810	wantarray ? @res : $res[0]
		811	}
		812
		813	sub register_script_function {
		814	my ($fun, $cb) = @_;
		815
		816	no strict 'refs';
		817	*{"safe::$fun"} = $safe_hole->wrap ($cb);
		818	}
		819
		820	#############################################################################
		821
		822	=head2 EXTENSION DATABASE SUPPORT
		823
		824	Crossfire maintains a very simple database for extension use. It can
		825	currently store anything that can be serialised using Storable, which
		826	excludes objects.
		827
		828	The parameter C<$family> should best start with the name of the extension
		829	using it, it should be unique.
		830
		831	=over 4
		832
		833	=item $hashref = cf::db_get $family
		834
		835	Return a hashref for use by the extension C<$family>, which can be
		836	modified. After modifications, you have to call C<cf::db_dirty> or
		837	C<cf::db_sync>.
		838
		839	=item $value = cf::db_get $family => $key
		840
		841	Returns a single value from the database
		842
		843	=item cf::db_put $family => $hashref
		844
		845	Stores the given family hashref into the database. Updates are delayed, if
		846	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		847
		848	=item cf::db_put $family => $key => $value
		849
		850	Stores the given C<$value> in the family hash. Updates are delayed, if you
		851	want the data to be synced to disk immediately, use C<cf::db_sync>.
		852
		853	=item cf::db_dirty
		854
		855	Marks the database as dirty, to be updated at a later time.
		856
		857	=item cf::db_sync
		858
		859	Immediately write the database to disk I<if it is dirty>.
		860
		861	=cut
		862
		863	{
		864	my $db;
		865	my $path = cf::datadir . "/database.pst";
		866
		867	sub db_load() {
		868	warn "loading database $path\n";#d# remove later
		869	$db = stat $path ? Storable::retrieve $path : { };
		870	}
		871
		872	my $pid;
		873
		874	sub db_save() {
		875	warn "saving database $path\n";#d# remove later
		876	waitpid $pid, 0 if $pid;
		877	unless ($pid = fork) {
		878	$db->{_meta}{version} = 1;
		879	Storable::nstore $db, "$path~";
		880	rename "$path~", $path;
		881	cf::_exit 0 if defined $pid;
		882	}
		883	}
		884
		885	my $dirty;
		886
		887	sub db_sync() {
		888	db_save if $dirty;
		889	undef $dirty;
		890	}
		891
		892	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {
		893	db_sync;
		894	});
		895
		896	sub db_dirty() {
		897	$dirty = 1;
		898	$idle->start;
		899	}
		900
		901	sub db_get($;$) {
		902	@_ >= 2
		903	? $db->{$_[0]}{$_[1]}
		904	: ($db->{$_[0]} \|\|= { })
		905	}
		906
		907	sub db_put($$;$) {
		908	if (@_ >= 3) {
		909	$db->{$_[0]}{$_[1]} = $_[2];
		910	} else {
		911	$db->{$_[0]} = $_[1];
		912	}
		913	db_dirty;
		914	}
		915	}
		916
		917	#############################################################################
		918	# the server's main()
		919
		920	sub main {
		921	db_load;
		922	load_extensions;
		923	Event::loop;
		924	}
		925
		926	#############################################################################
		927	# initialisation
		928
		929	sub _perl_reload(&) {
		930	my ($msg) = @_;
		931
		932	$msg->("reloading...");
		933
		934	eval {
		935	# cancel all watchers
		936	$_->cancel for Event::all_watchers;
		937
		938	# unload all extensions
		939	for (@exts) {
		940	$msg->("unloading <$_>");
		941	unload_extension $_;
		942	}
		943
		944	# unload all modules loaded from $LIBDIR
		945	while (my ($k, $v) = each %INC) {
		946	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		947
		948	$msg->("removing <$k>");
		949	delete $INC{$k};
		950
		951	$k =~ s/\.pm$//;
		952	$k =~ s/\//::/g;
		953
		954	if (my $cb = $k->can ("unload_module")) {
		955	$cb->();
		956	}
		957
		958	Symbol::delete_package $k;
		959	}
		960
		961	# sync database to disk
		962	cf::db_sync;
		963
		964	# get rid of safe::, as good as possible
		965	Symbol::delete_package "safe::$_"
		966	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
		967
		968	# remove register_script_function callbacks
		969	# TODO
		970
		971	# unload cf.pm "a bit"
		972	delete $INC{"cf.pm"};
		973
		974	# don't, removes xs symbols, too,
		975	# and global variables created in xs
		976	#Symbol::delete_package __PACKAGE__;
		977
		978	# reload cf.pm
		979	$msg->("reloading cf.pm");
		980	require cf;
		981
		982	# load database again
		983	cf::db_load;
		984
		985	# load extensions
		986	$msg->("load extensions");
		987	cf::load_extensions;
		988
		989	# reattach attachments to objects
		990	$msg->("reattach");
		991	_global_reattach;
		992	};
		993	$msg->($@) if $@;
		994
		995	$msg->("reloaded");
		996	};
		997
		998	sub perl_reload() {
		999	_perl_reload {
		1000	warn $_[0];
		1001	print "$_[0]\n";
		1002	};
		1003	}
		1004
213	register_command "perl-reload", 0, sub {	1005	register_command "perl-reload", 0, sub {
214	my ($who, $arg) = @_;	1006	my ($who, $arg) = @_;
215		1007
216	if ($who->flag (FLAG_WIZ)) {	1008	if ($who->flag (FLAG_WIZ)) {
217	$who->message ("reloading...");	1009	_perl_reload {
218		1010	warn $_[0];
219	warn "reloading...\n";	1011	$who->message ($_[0]);
220	eval {
221	unload_extension $_ for @exts;
222	delete $INC{"cf.pm"};
223
224	# don't, removes xs symbols, too
225	#Symbol::delete_package $pkg;
226
227	require cf;
228	};	1012	};
229	warn $@ if $@;
230	$who->message ($@) if $@;
231	warn "reloaded\n";
232
233	$who->message ("reloaded");
234	} else {
235	$who->message ("Intruder Alert!");
236	}	1013	}
237	};	1014	};
238		1015
239	#############################################################################
240	# extcmd framework, basically convert ext <id> <pkg> arg1 args
241	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
242
243	sub on_extcmd {
244	my ($pl, $buf) = @_;
245
246	my ($type) = $buf =~ s/^(\S+) // ? $1 : "";
247
248	$extcmd{$type}[0]->($pl, $buf)
249	if $extcmd{$type};
250	}
251
252	#############################################################################
253	# load/save/clean perl data associated with a map
254
255	*on_mapclean = sub {
256	my ($map) = @_;
257
258	my $path = $map->tmpname;
259	defined $path or return;
260
261	unlink "$path.cfperl";
262	};
263
264	*on_mapin =
265	*on_mapload = sub {
266	my ($map) = @_;
267
268	my $path = $map->tmpname;
269	$path = $map->path unless defined $path;
270
271	open my $fh, "<:raw", "$path.cfperl"
272	or return; # no perl data
273
274	my $data = Storable::thaw do { local $/; <$fh> };
275
276	$data->{version} <= 1
277	or return; # too new
278
279	$map->_set_obs ($data->{obs});
280	};
281
282	*on_mapout = sub {
283	my ($map) = @_;
284
285	my $path = $map->tmpname;
286	$path = $map->path unless defined $path;
287
288	my $obs = $map->_get_obs;
289
290	if (defined $obs) {
291	open my $fh, ">:raw", "$path.cfperl"
292	or die "$path.cfperl: $!";
293
294	stat $path;
295
296	print $fh Storable::nfreeze {
297	size => (stat _)[7],
298	time => (stat _)[9],
299	version => 1,
300	obs => $obs,
301	};
302
303	chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible g
304	} else {
305	unlink "$path.cfperl";
306	}
307	};
308
309	#############################################################################
310	# load/save perl data associated with player->ob objects
311
312	*on_player_load = sub {
313	my ($ob, $path) = @_;
314
315	if (open my $fh, "<:raw", "$path.cfperl") {
316
317	#d##TODO#remove
318
319	my $data = Storable::thaw do { local $/; <$fh> };
320
321	$data->{version} <= 1
322	or return; # too new
323
324	%$ob = %{$data->{ob}};
325	return;
326	}
327
328	for my $o ($ob, $ob->inv) {
329	if (my $value = $o->get_ob_key_value ("_perl_data")) {
330	$o->set_ob_key_value ("_perl_data");
331
332	%$o = %{ Storable::thaw pack "H*", $value };
333	}
334	}
335	};
336
337	*on_player_save = sub {
338	my ($ob, $path) = @_;
339
340	$_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
341	for grep %$_, $ob, $ob->inv;
342
343	unlink "$path.cfperl";#d##TODO#remove
344	};
345
346	register "<global>", __PACKAGE__;	1016	register "<global>", __PACKAGE__;
347		1017
348	unshift @INC, maps_directory "perl";	1018	unshift @INC, $LIBDIR;
349		1019
350	load_extensions;	1020	$TICK_WATCHER = Event->timer (
		1021	prio => 1,
		1022	at => $NEXT_TICK \|\| 1,
		1023	cb => sub {
		1024	cf::server_tick; # one server iteration
		1025
		1026	my $NOW = Event::time;
		1027	$NEXT_TICK += $TICK;
		1028
		1029	# if we are delayed by four ticks, skip them all
		1030	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
		1031
		1032	$TICK_WATCHER->at ($NEXT_TICK);
		1033	$TICK_WATCHER->start;
		1034	},
		1035	);
351		1036
352	1	1037	1
353		1038

Diff Legend

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

Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.19 by root, Sun Jul 16 17:15:39 2006 UTC vs. Revision 1.65 by root, Tue Sep 12 22:18:55 2006 UTC

Diff Legend

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.19 by root, Sun Jul 16 17:15:39 2006 UTC vs.
Revision 1.65 by root, Tue Sep 12 22:18:55 2006 UTC