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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.47 by root, Sun Aug 27 13:02:04 2006 UTC vs.
Revision 1.77 by root, Sun Nov 5 11:13:01 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
16	_reload_1;	21	_init_vars;
17		22
18	our %COMMAND = ();	23	our %COMMAND = ();
19	our @EVENT;	24	our @EVENT;
20	our %PROP_TYPE;
21	our %PROP_IDX;
22	our $LIBDIR = maps_directory "perl";	25	our $LIBDIR = maps_directory "perl";
23		26
24	our $TICK = MAX_TIME * 1e-6;	27	our $TICK = MAX_TIME * 1e-6;
25	our $TICK_WATCHER;	28	our $TICK_WATCHER;
26	our $NEXT_TICK;	29	our $NEXT_TICK;
		30
		31	our %CFG;
		32
		33	our $uptime;
		34
		35	$uptime \|\|= time;
		36
		37	#############################################################################
		38
		39	=head2 GLOBAL VARIABLES
		40
		41	=over 4
		42
		43	=item $cf::LIBDIR
		44
		45	The perl library directory, where extensions and cf-specific modules can
		46	be found. It will be added to C<@INC> automatically.
		47
		48	=item $cf::TICK
		49
		50	The interval between server ticks, in seconds.
		51
		52	=item %cf::CFG
		53
		54	Configuration for the server, loaded from C</etc/crossfire/config>, or
		55	from wherever your confdir points to.
		56
		57	=back
		58
		59	=cut
27		60
28	BEGIN {	61	BEGIN {
29	*CORE::GLOBAL::warn = sub {	62	*CORE::GLOBAL::warn = sub {
30	my $msg = join "", @_;	63	my $msg = join "", @_;
31	$msg .= "\n"	64	$msg .= "\n"
…		…
34	print STDERR "cfperl: $msg";	67	print STDERR "cfperl: $msg";
35	LOG llevError, "cfperl: $msg";	68	LOG llevError, "cfperl: $msg";
36	};	69	};
37	}	70	}
38		71
39	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
40
41	# generate property mutators
42	sub prop_gen {
43	my ($prefix, $class) = @_;
44
45	no strict 'refs';
46
47	for my $prop (keys %PROP_TYPE) {
48	$prop =~ /^\Q$prefix\E_(.*$)/ or next;
49	my $sub = lc $1;
50
51	my $type = $PROP_TYPE{$prop};
52	my $idx = $PROP_IDX {$prop};
53
54	{"$class\::get_$sub"} = {"$class\::$sub"} = sub {
55	$_[0]->get_property ($type, $idx)
56	};
57
58	*{"$class\::set_$sub"} = sub {
59	$_[0]->set_property ($type, $idx, $_[1]);
60	} unless $ignore_set{$prop};
61	}
62	}
63
64	# auto-generate most of the API
65
66	prop_gen OBJECT_PROP => "cf::object";
67	# CFAPI_OBJECT_ANIMATION?
68	prop_gen PLAYER_PROP => "cf::object::player";
69
70	prop_gen MAP_PROP => "cf::map";
71	prop_gen ARCH_PROP => "cf::arch";
72
73	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	72	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74		73
75	# we bless all objects into (empty) derived classes to force a method lookup	74	# we bless all objects into (empty) derived classes to force a method lookup
76	# within the Safe compartment.	75	# within the Safe compartment.
77	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {	76	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {
78	no strict 'refs';	77	no strict 'refs';
79	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	78	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80	}	79	}
81		80
82	$Event::DIED = sub {	81	$Event::DIED = sub {
…		…
87	my @exts;	86	my @exts;
88	my @hook;	87	my @hook;
89	my %command;	88	my %command;
90	my %extcmd;	89	my %extcmd;
91		90
92	#############################################################################	91	=head2 UTILITY FUNCTIONS
93	# utility functions	92
		93	=over 4
		94
		95	=cut
94		96
95	use JSON::Syck (); # TODO# replace by JSON::PC once working	97	use JSON::Syck (); # TODO# replace by JSON::PC once working
		98
		99	=item $ref = cf::from_json $json
		100
		101	Converts a JSON string into the corresponding perl data structure.
		102
		103	=cut
96		104
97	sub from_json($) {	105	sub from_json($) {
98	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	106	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99	JSON::Syck::Load $_[0]	107	JSON::Syck::Load $_[0]
100	}	108	}
101		109
		110	=item $json = cf::to_json $ref
		111
		112	Converts a perl data structure into its JSON representation.
		113
		114	=cut
		115
102	sub to_json($) {	116	sub to_json($) {
103	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	117	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104	JSON::Syck::Dump $_[0]	118	JSON::Syck::Dump $_[0]
105	}	119	}
106		120
107	#############################################################################	121	=back
108	# "new" plug-in system
109		122
		123	=cut
		124
		125	#############################################################################
		126
		127	=head2 EVENTS AND OBJECT ATTACHMENTS
		128
		129	=over 4
		130
		131	=item $object->attach ($attachment, key => $value...)
		132
110	=item $object->attach ($attachment, ...)	133	=item $object->detach ($attachment)
111		134
112	Attach a pre-registered attachment to an object.	135	Attach/detach a pre-registered attachment to an object.
113		136
		137	=item $player->attach ($attachment, key => $value...)
		138
114	=item $player->attach ($attachment, ...)	139	=item $player->detach ($attachment)
115		140
116	Attach a pre-registered attachment to a player.	141	Attach/detach a pre-registered attachment to a player.
117		142
118	=item $map->attach ($attachment, ...) # not yet persistent	143	=item $map->attach ($attachment, key => $value...)
119		144
		145	=item $map->detach ($attachment)
		146
120	Attach a pre-registered attachment to a map.	147	Attach/detach a pre-registered attachment to a map.
		148
		149	=item $bool = $object->attached ($name)
		150
		151	=item $bool = $player->attached ($name)
		152
		153	=item $bool = $map->attached ($name)
		154
		155	Checks wether the named attachment is currently attached to the object.
121		156
122	=item cf::attach_global ...	157	=item cf::attach_global ...
123		158
124	Attach handlers for global events.	159	Attach handlers for global events.
125		160
…		…
173	=item cf::attach_to_maps ...	208	=item cf::attach_to_maps ...
174		209
175	Attach handlers to all maps.	210	Attach handlers to all maps.
176		211
177	=item cf:register_attachment $name, ...	212	=item cf:register_attachment $name, ...
		213
		214	Register an attachment by name through which objects can refer to this
		215	attachment.
		216
		217	=item cf:register_player_attachment $name, ...
		218
		219	Register an attachment by name through which players can refer to this
		220	attachment.
		221
		222	=item cf:register_map_attachment $name, ...
		223
		224	Register an attachment by name through which maps can refer to this
		225	attachment.
178		226
179	=cut	227	=cut
180		228
181	# the following variables are defined in .xs and must not be re-created	229	# the following variables are defined in .xs and must not be re-created
182	our @CB_GLOBAL = (); # registry for all global events	230	our @CB_GLOBAL = (); # registry for all global events
…		…
245		293
246	\%undo	294	\%undo
247	}	295	}
248		296
249	sub _attach_attachment {	297	sub _attach_attachment {
250	my ($obj, $name, @args) = @_;	298	my ($obj, $name, %arg) = @_;
		299
		300	return if exists $obj->{_attachment}{$name};
251		301
252	my $res;	302	my $res;
253		303
254	if (my $attach = $attachment{$name}) {	304	if (my $attach = $attachment{$name}) {
255	my $registry = $obj->registry;	305	my $registry = $obj->registry;
…		…
257	for (@$attach) {	307	for (@$attach) {
258	my ($klass, @attach) = @$_;	308	my ($klass, @attach) = @$_;
259	$res = _attach @$registry, $klass, @attach;	309	$res = _attach @$registry, $klass, @attach;
260	}	310	}
261		311
262	if (my $cb = delete $registry->[EVENT_OBJECT_INSTANTIATE]) {	312	$obj->{$name} = \%arg;
263	for (@$cb) {
264	eval { $_->[1]->($obj, @args); };
265	if ($@) {
266	warn "$@";
267	warn "... while processing '$name' instantiate with args <@args>.\n";
268	}
269	}
270	}
271	} else {	313	} else {
272	warn "object uses attachment '$name' that is not available, postponing.\n";	314	warn "object uses attachment '$name' that is not available, postponing.\n";
273	}	315	}
274		316
275	push @{$obj->{_attachment}}, $name;	317	$obj->{_attachment}{$name} = undef;
276		318
277	$res->{attachment} = $name;	319	$res->{attachment} = $name;
278	$res	320	$res
279	}	321	}
280		322
281	sub cf::object::attach {	323	*cf::object::attach =
		324	*cf::player::attach =
		325	*cf::map::attach = sub {
282	my ($obj, $name, @args) = @_;	326	my ($obj, $name, %arg) = @_;
283		327
284	_attach_attachment $obj, $name, @args;	328	_attach_attachment $obj, $name, %arg;
285	}	329	};
286		330
		331	# all those should be optimised
		332	*cf::object::detach =
287	sub cf::player::attach {	333	*cf::player::detach =
		334	*cf::map::detach = sub {
288	my ($obj, $name, @args) = @_;	335	my ($obj, $name) = @_;
289		336
290	_attach_attachment KLASS_PLAYER, $obj, $name, @args;	337	delete $obj->{_attachment}{$name};
291	}	338	reattach ($obj);
		339	};
292		340
293	sub cf::map::attach {	341	*cf::object::attached =
		342	*cf::player::attached =
		343	*cf::map::attached = sub {
294	my ($obj, $name, @args) = @_;	344	my ($obj, $name) = @_;
295		345
296	_attach_attachment KLASS_MAP, $obj, $name, @args;	346	exists $obj->{_attachment}{$name}
297	}	347	};
298		348
299	sub attach_global {	349	sub attach_global {
300	_attach @CB_GLOBAL, KLASS_GLOBAL, @_	350	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
301	}	351	}
302		352
…		…
323	my $name = shift;	373	my $name = shift;
324		374
325	$attachment{$name} = [[KLASS_OBJECT, @_]];	375	$attachment{$name} = [[KLASS_OBJECT, @_]];
326	}	376	}
327		377
		378	sub register_player_attachment {
		379	my $name = shift;
		380
		381	$attachment{$name} = [[KLASS_PLAYER, @_]];
		382	}
		383
		384	sub register_map_attachment {
		385	my $name = shift;
		386
		387	$attachment{$name} = [[KLASS_MAP, @_]];
		388	}
		389
328	our $override;	390	our $override;
329	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	391	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
330		392
331	sub override {	393	sub override {
332	$override = 1;	394	$override = 1;
…		…
344	for (@$callbacks) {	406	for (@$callbacks) {
345	eval { &{$_->[1]} };	407	eval { &{$_->[1]} };
346		408
347	if ($@) {	409	if ($@) {
348	warn "$@";	410	warn "$@";
349	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	411	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
350	override;	412	override;
351	}	413	}
352		414
353	return 1 if $override;	415	return 1 if $override;
354	}	416	}
355		417
356	0	418	0
357	}	419	}
		420
		421	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...
		422
		423	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
		424
		425	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
		426
		427	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
		428
		429	Generate a global/object/player/map-specific event with the given arguments.
		430
		431	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
		432	removed in future versions), and there is no public API to access override
		433	results (if you must, access C<@cf::invoke_results> directly).
		434
		435	=back
		436
		437	=cut
		438
		439	#############################################################################
		440
		441	=head2 METHODS VALID FOR ALL CORE OBJECTS
		442
		443	=over 4
		444
		445	=item $object->valid, $player->valid, $map->valid
		446
		447	Just because you have a perl object does not mean that the corresponding
		448	C-level object still exists. If you try to access an object that has no
		449	valid C counterpart anymore you get an exception at runtime. This method
		450	can be used to test for existence of the C object part without causing an
		451	exception.
		452
		453	=back
		454
		455	=cut
		456
		457	*cf::object::valid =
		458	*cf::player::valid =
		459	*cf::map::valid = \&cf::_valid;
358		460
359	#############################################################################	461	#############################################################################
360	# object support	462	# object support
361		463
362	sub instantiate {	464	sub instantiate {
…		…
364		466
365	$data = from_json $data;	467	$data = from_json $data;
366		468
367	for (@$data) {	469	for (@$data) {
368	my ($name, $args) = @$_;	470	my ($name, $args) = @$_;
369	attach $obj, $name, @{$args \|\| [] };	471
		472	$obj->attach ($name, %{$args \|\| {} });
370	}	473	}
371	}	474	}
372		475
373	# basically do the same as instantiate, without calling instantiate	476	# basically do the same as instantiate, without calling instantiate
374	sub reattach {	477	sub reattach {
375	my ($obj) = @_;	478	my ($obj) = @_;
376	my $registry = $obj->registry;	479	my $registry = $obj->registry;
377		480
378	@$registry = ();	481	@$registry = ();
379		482
		483	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };
		484
380	for my $name (@{ $obj->{_attachment} }) {	485	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {
381	if (my $attach = $attachment{$name}) {	486	if (my $attach = $attachment{$name}) {
382	for (@$attach) {	487	for (@$attach) {
383	my ($klass, @attach) = @$_;	488	my ($klass, @attach) = @$_;
384	_attach @$registry, $klass, @attach;	489	_attach @$registry, $klass, @attach;
385	}	490	}
…		…
388	}	493	}
389	}	494	}
390	}	495	}
391		496
392	sub object_freezer_save {	497	sub object_freezer_save {
393	my ($filename, $objs) = @_;	498	my ($filename, $rdata, $objs) = @_;
394		499
395	$filename .= ".pst";	500	if (length $$rdata) {
		501	warn sprintf "saving %s (%d,%d)\n",
		502	$filename, length $$rdata, scalar @$objs;
396		503
397	if (@$objs) {
398	open my $fh, ">:raw", "$filename~";	504	if (open my $fh, ">:raw", "$filename~") {
399	chmod $fh, SAVE_MODE;	505	chmod SAVE_MODE, $fh;
		506	syswrite $fh, $$rdata;
		507	close $fh;
		508
		509	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
		510	chmod SAVE_MODE, $fh;
400	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	511	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
401	close $fh;	512	close $fh;
		513	rename "$filename.pst~", "$filename.pst";
		514	} else {
		515	unlink "$filename.pst";
		516	}
		517
402	rename "$filename~", $filename;	518	rename "$filename~", $filename;
		519	} else {
		520	warn "FATAL: $filename~: $!\n";
		521	}
403	} else {	522	} else {
404	unlink $filename;	523	unlink $filename;
		524	unlink "$filename.pst";
405	}	525	}
406	}	526	}
407		527
408	sub object_thawer_load {	528	sub object_thawer_load {
409	my ($filename) = @_;	529	my ($filename) = @_;
410		530
		531	local $/;
		532
		533	my $av;
		534
		535	#TODO: use sysread etc.
		536	if (open my $data, "<:raw:perlio", $filename) {
		537	$data = <$data>;
411	open my $fh, "<:raw:perlio", "$filename.pst"	538	if (open my $pst, "<:raw:perlio", "$filename.pst") {
412	or return;	539	$av = eval { (Storable::thaw <$pst>)->{objs} };
		540	}
		541	return ($data, $av);
		542	}
413		543
414	eval { local $/; (Storable::thaw <$fh>)->{objs} }	544	()
415	}	545	}
416		546
417	attach_to_objects	547	attach_to_objects
418	prio => -1000000,	548	prio => -1000000,
419	on_clone => sub {	549	on_clone => sub {
…		…
421		551
422	@{$dst->registry} = @{$src->registry};	552	@{$dst->registry} = @{$src->registry};
423		553
424	%$dst = %$src;	554	%$dst = %$src;
425		555
426	$dst->{_attachment} = [@{ $src->{_attachment} }]	556	%{$dst->{_attachment}} = %{$src->{_attachment}}
427	if exists $src->{_attachment};	557	if exists $src->{_attachment};
428	},	558	},
429	;	559	;
430		560
431	#############################################################################	561	#############################################################################
…		…
565	load_extension $ext;	695	load_extension $ext;
566	1	696	1
567	} or warn "$ext not loaded: $@";	697	} or warn "$ext not loaded: $@";
568	}	698	}
569	}	699	}
570
571	sub _perl_reload(&) {
572	my ($msg) = @_;
573
574	$msg->("reloading...");
575
576	eval {
577	# 1. cancel all watchers
578	$_->cancel for Event::all_watchers;
579
580	# 2. unload all extensions
581	for (@exts) {
582	$msg->("unloading <$_>");
583	unload_extension $_;
584	}
585
586	# 3. unload all modules loaded from $LIBDIR
587	while (my ($k, $v) = each %INC) {
588	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
589
590	$msg->("removing <$k>");
591	delete $INC{$k};
592
593	$k =~ s/\.pm$//;
594	$k =~ s/\//::/g;
595
596	if (my $cb = $k->can ("unload_module")) {
597	$cb->();
598	}
599
600	Symbol::delete_package $k;
601	}
602
603	# 4. get rid of safe::, as good as possible
604	Symbol::delete_package "safe::$_"
605	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
606
607	# 5. remove register_script_function callbacks
608	# TODO
609
610	# 6. unload cf.pm "a bit"
611	delete $INC{"cf.pm"};
612
613	# don't, removes xs symbols, too,
614	# and global variables created in xs
615	#Symbol::delete_package __PACKAGE__;
616
617	# 7. reload cf.pm
618	$msg->("reloading cf.pm");
619	require cf;
620	};
621	$msg->($@) if $@;
622
623	$msg->("reloaded");
624	};
625
626	sub perl_reload() {
627	_perl_reload {
628	warn $_[0];
629	print "$_[0]\n";
630	};
631	}
632
633	register_command "perl-reload", 0, sub {
634	my ($who, $arg) = @_;
635
636	if ($who->flag (FLAG_WIZ)) {
637	_perl_reload {
638	warn $_[0];
639	$who->message ($_[0]);
640	};
641	}
642	};
643		700
644	#############################################################################	701	#############################################################################
645	# extcmd framework, basically convert ext <msg>	702	# extcmd framework, basically convert ext <msg>
646	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few	703	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
647		704
…		…
672	my ($map) = @_;	729	my ($map) = @_;
673		730
674	my $path = $map->tmpname;	731	my $path = $map->tmpname;
675	defined $path or return;	732	defined $path or return;
676		733
677	unlink "$path.cfperl";
678	unlink "$path.pst";	734	unlink "$path.pst";
679	};	735	};
680		736
681	*cf::mapsupport::on_swapin =
682	*cf::mapsupport::on_load = sub {
683	my ($map) = @_;
684
685	my $path = $map->tmpname;
686	$path = $map->path unless defined $path;
687
688	open my $fh, "<:raw", "$path.cfperl"
689	or return; # no perl data
690
691	my $data = Storable::thaw do { local $/; <$fh> };
692
693	$data->{version} <= 1
694	or return; # too new
695
696	$map->_set_obs ($data->{obs});
697	};
698
699	attach_to_maps prio => -10000, package => cf::mapsupport::;	737	attach_to_maps prio => -10000, package => cf::mapsupport::;
700		738
701	#############################################################################	739	#############################################################################
702	# load/save perl data associated with player->ob objects	740	# load/save perl data associated with player->ob objects
703		741
704	sub all_objects(@) {	742	sub all_objects(@) {
705	@_, map all_objects ($_->inv), @_	743	@_, map all_objects ($_->inv), @_
706	}	744	}
707		745
		746	# TODO: compatibility cruft, remove when no longer needed
708	attach_to_players	747	attach_to_players
709	on_load => sub {	748	on_load => sub {
710	my ($pl, $path) = @_;	749	my ($pl, $path) = @_;
711		750
712	for my $o (all_objects $pl->ob) {	751	for my $o (all_objects $pl->ob) {
…		…
718	}	757	}
719	},	758	},
720	;	759	;
721		760
722	#############################################################################	761	#############################################################################
723	# core extensions - in perl	762
		763	=head2 CORE EXTENSIONS
		764
		765	Functions and methods that extend core crossfire objects.
		766
		767	=over 4
724		768
725	=item cf::player::exists $login	769	=item cf::player::exists $login
726		770
727	Returns true when the given account exists.	771	Returns true when the given account exists.
728		772
…		…
731	sub cf::player::exists($) {	775	sub cf::player::exists($) {
732	cf::player::find $_[0]	776	cf::player::find $_[0]
733	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	777	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
734	}	778	}
735		779
736	=item $player->reply ($npc, $msg[, $flags])	780	=item $object->reply ($npc, $msg[, $flags])
737		781
738	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	782	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
739	can be C<undef>. Does the right thing when the player is currently in a	783	can be C<undef>. Does the right thing when the player is currently in a
740	dialogue with the given NPC character.	784	dialogue with the given NPC character.
741		785
…		…
768	$msg{msgid} = $id;	812	$msg{msgid} = $id;
769		813
770	$self->send ("ext " . to_json \%msg);	814	$self->send ("ext " . to_json \%msg);
771	}	815	}
772		816
		817	=back
		818
		819	=cut
		820
773	#############################################################################	821	#############################################################################
774	# map scripting support	822
		823	=head2 SAFE SCRIPTING
		824
		825	Functions that provide a safe environment to compile and execute
		826	snippets of perl code without them endangering the safety of the server
		827	itself. Looping constructs, I/O operators and other built-in functionality
		828	is not available in the safe scripting environment, and the number of
		829	functions and methods that cna be called is greatly reduced.
		830
		831	=cut
775		832
776	our $safe = new Safe "safe";	833	our $safe = new Safe "safe";
777	our $safe_hole = new Safe::Hole;	834	our $safe_hole = new Safe::Hole;
778		835
779	$SIG{FPE} = 'IGNORE';	836	$SIG{FPE} = 'IGNORE';
780		837
781	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	838	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
782		839
783	# here we export the classes and methods available to script code	840	# here we export the classes and methods available to script code
		841
		842	=pod
		843
		844	The following fucntions and emthods are available within a safe environment:
		845
		846	cf::object contr pay_amount pay_player
		847	cf::object::player player
		848	cf::player peaceful
		849
		850	=cut
784		851
785	for (	852	for (
786	["cf::object" => qw(contr pay_amount pay_player)],	853	["cf::object" => qw(contr pay_amount pay_player)],
787	["cf::object::player" => qw(player)],	854	["cf::object::player" => qw(player)],
788	["cf::player" => qw(peaceful)],	855	["cf::player" => qw(peaceful)],
…		…
791	my ($pkg, @funs) = @$_;	858	my ($pkg, @funs) = @$_;
792	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	859	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
793	for @funs;	860	for @funs;
794	}	861	}
795		862
		863	=over 4
		864
		865	=item @retval = safe_eval $code, [var => value, ...]
		866
		867	Compiled and executes the given perl code snippet. additional var/value
		868	pairs result in temporary local (my) scalar variables of the given name
		869	that are available in the code snippet. Example:
		870
		871	my $five = safe_eval '$first + $second', first => 1, second => 4;
		872
		873	=cut
		874
796	sub safe_eval($;@) {	875	sub safe_eval($;@) {
797	my ($code, %vars) = @_;	876	my ($code, %vars) = @_;
798		877
799	my $qcode = $code;	878	my $qcode = $code;
800	$qcode =~ s/"/‟/g; # not allowed in #line filenames	879	$qcode =~ s/"/‟/g; # not allowed in #line filenames
…		…
822	}	901	}
823		902
824	wantarray ? @res : $res[0]	903	wantarray ? @res : $res[0]
825	}	904	}
826		905
		906	=item cf::register_script_function $function => $cb
		907
		908	Register a function that can be called from within map/npc scripts. The
		909	function should be reasonably secure and should be put into a package name
		910	like the extension.
		911
		912	Example: register a function that gets called whenever a map script calls
		913	C<rent::overview>, as used by the C<rent> extension.
		914
		915	cf::register_script_function "rent::overview" => sub {
		916	...
		917	};
		918
		919	=cut
		920
827	sub register_script_function {	921	sub register_script_function {
828	my ($fun, $cb) = @_;	922	my ($fun, $cb) = @_;
829		923
830	no strict 'refs';	924	no strict 'refs';
831	*{"safe::$fun"} = $safe_hole->wrap ($cb);	925	*{"safe::$fun"} = $safe_hole->wrap ($cb);
832	}	926	}
833		927
		928	=back
		929
		930	=cut
		931
		932	#############################################################################
		933
		934	=head2 EXTENSION DATABASE SUPPORT
		935
		936	Crossfire maintains a very simple database for extension use. It can
		937	currently store anything that can be serialised using Storable, which
		938	excludes objects.
		939
		940	The parameter C<$family> should best start with the name of the extension
		941	using it, it should be unique.
		942
		943	=over 4
		944
		945	=item $hashref = cf::db_get $family
		946
		947	Return a hashref for use by the extension C<$family>, which can be
		948	modified. After modifications, you have to call C<cf::db_dirty> or
		949	C<cf::db_sync>.
		950
		951	=item $value = cf::db_get $family => $key
		952
		953	Returns a single value from the database
		954
		955	=item cf::db_put $family => $hashref
		956
		957	Stores the given family hashref into the database. Updates are delayed, if
		958	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		959
		960	=item cf::db_put $family => $key => $value
		961
		962	Stores the given C<$value> in the family hash. Updates are delayed, if you
		963	want the data to be synced to disk immediately, use C<cf::db_sync>.
		964
		965	=item cf::db_dirty
		966
		967	Marks the database as dirty, to be updated at a later time.
		968
		969	=item cf::db_sync
		970
		971	Immediately write the database to disk I<if it is dirty>.
		972
		973	=cut
		974
		975	{
		976	my $db;
		977	my $path = cf::localdir . "/database.pst";
		978
		979	sub db_load() {
		980	warn "loading database $path\n";#d# remove later
		981	$db = stat $path ? Storable::retrieve $path : { };
		982	}
		983
		984	my $pid;
		985
		986	sub db_save() {
		987	warn "saving database $path\n";#d# remove later
		988	waitpid $pid, 0 if $pid;
		989	if (0 == ($pid = fork)) {
		990	$db->{_meta}{version} = 1;
		991	Storable::nstore $db, "$path~";
		992	rename "$path~", $path;
		993	cf::_exit 0 if defined $pid;
		994	}
		995	}
		996
		997	my $dirty;
		998
		999	sub db_sync() {
		1000	db_save if $dirty;
		1001	undef $dirty;
		1002	}
		1003
		1004	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {
		1005	db_sync;
		1006	});
		1007
		1008	sub db_dirty() {
		1009	$dirty = 1;
		1010	$idle->start;
		1011	}
		1012
		1013	sub db_get($;$) {
		1014	@_ >= 2
		1015	? $db->{$_[0]}{$_[1]}
		1016	: ($db->{$_[0]} \|\|= { })
		1017	}
		1018
		1019	sub db_put($$;$) {
		1020	if (@_ >= 3) {
		1021	$db->{$_[0]}{$_[1]} = $_[2];
		1022	} else {
		1023	$db->{$_[0]} = $_[1];
		1024	}
		1025	db_dirty;
		1026	}
		1027
		1028	attach_global
		1029	prio => 10000,
		1030	on_cleanup => sub {
		1031	db_sync;
		1032	},
		1033	;
		1034	}
		1035
834	#############################################################################	1036	#############################################################################
835	# the server's main()	1037	# the server's main()
836		1038
		1039	sub cfg_load {
		1040	open my $fh, "<:utf8", cf::confdir . "/config"
		1041	or return;
		1042
		1043	local $/;
		1044	*CFG = YAML::Syck::Load <$fh>;
		1045	}
		1046
837	sub main {	1047	sub main {
		1048	cfg_load;
		1049	db_load;
		1050	load_extensions;
838	Event::loop;	1051	Event::loop;
839	}	1052	}
840		1053
841	#############################################################################	1054	#############################################################################
842	# initialisation	1055	# initialisation
843		1056
		1057	sub _perl_reload(&) {
		1058	my ($msg) = @_;
		1059
		1060	$msg->("reloading...");
		1061
		1062	eval {
		1063	# cancel all watchers
		1064	$_->cancel for Event::all_watchers;
		1065
		1066	# unload all extensions
		1067	for (@exts) {
		1068	$msg->("unloading <$_>");
		1069	unload_extension $_;
		1070	}
		1071
		1072	# unload all modules loaded from $LIBDIR
		1073	while (my ($k, $v) = each %INC) {
		1074	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		1075
		1076	$msg->("removing <$k>");
		1077	delete $INC{$k};
		1078
		1079	$k =~ s/\.pm$//;
		1080	$k =~ s/\//::/g;
		1081
		1082	if (my $cb = $k->can ("unload_module")) {
		1083	$cb->();
		1084	}
		1085
		1086	Symbol::delete_package $k;
		1087	}
		1088
		1089	# sync database to disk
		1090	cf::db_sync;
		1091
		1092	# get rid of safe::, as good as possible
		1093	Symbol::delete_package "safe::$_"
		1094	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
		1095
		1096	# remove register_script_function callbacks
		1097	# TODO
		1098
		1099	# unload cf.pm "a bit"
		1100	delete $INC{"cf.pm"};
		1101
		1102	# don't, removes xs symbols, too,
		1103	# and global variables created in xs
		1104	#Symbol::delete_package __PACKAGE__;
		1105
		1106	# reload cf.pm
		1107	$msg->("reloading cf.pm");
		1108	require cf;
		1109
		1110	# load config and database again
		1111	cf::cfg_load;
		1112	cf::db_load;
		1113
		1114	# load extensions
		1115	$msg->("load extensions");
		1116	cf::load_extensions;
		1117
		1118	# reattach attachments to objects
		1119	$msg->("reattach");
		1120	_global_reattach;
		1121	};
		1122	$msg->($@) if $@;
		1123
		1124	$msg->("reloaded");
		1125	};
		1126
		1127	sub perl_reload() {
		1128	_perl_reload {
		1129	warn $_[0];
		1130	print "$_[0]\n";
		1131	};
		1132	}
		1133
		1134	register_command "perl-reload", 0, sub {
		1135	my ($who, $arg) = @_;
		1136
		1137	if ($who->flag (FLAG_WIZ)) {
		1138	_perl_reload {
		1139	warn $_[0];
		1140	$who->message ($_[0]);
		1141	};
		1142	}
		1143	};
		1144
844	register "<global>", __PACKAGE__;	1145	register "<global>", __PACKAGE__;
845		1146
846	unshift @INC, $LIBDIR;	1147	unshift @INC, $LIBDIR;
847		1148
848	load_extensions;
849
850	$TICK_WATCHER = Event->timer (	1149	$TICK_WATCHER = Event->timer (
851	prio => 1,	1150	prio => 1,
		1151	async => 1,
852	at => $NEXT_TICK \|\| 1,	1152	at => $NEXT_TICK \|\| 1,
853	cb => sub {	1153	cb => sub {
854	cf::server_tick; # one server iteration	1154	cf::server_tick; # one server iteration
855		1155
856	my $NOW = Event::time;	1156	my $NOW = Event::time;
857	$NEXT_TICK += $TICK;	1157	$NEXT_TICK += $TICK;
858		1158
…		…
862	$TICK_WATCHER->at ($NEXT_TICK);	1162	$TICK_WATCHER->at ($NEXT_TICK);
863	$TICK_WATCHER->start;	1163	$TICK_WATCHER->start;
864	},	1164	},
865	);	1165	);
866		1166
867	_reload_2;	1167	IO::AIO::max_poll_time $TICK * 0.2;
		1168
		1169	Event->io (fd => IO::AIO::poll_fileno,
		1170	poll => 'r',
		1171	prio => 5,
		1172	cb => \&IO::AIO::poll_cb);
868		1173
869	1	1174	1
870		1175

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.47 by root, Sun Aug 27 13:02:04 2006 UTC vs. Revision 1.77 by root, Sun Nov 5 11:13:01 2006 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.47 by root, Sun Aug 27 13:02:04 2006 UTC vs.
Revision 1.77 by root, Sun Nov 5 11:13:01 2006 UTC