[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 1.75 by root, Mon Oct 2 00:22:01 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 YAML::Syck ();
10	use Time::HiRes;	11	use Time::HiRes;
11	use Event;	12	use Event;
12	$Event::Eval = 1; # no idea why this is required, but it is	13	$Event::Eval = 1; # no idea why this is required, but it is
13		14
		15	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		16	$YAML::Syck::ImplicitUnicode = 1;
		17
14	use strict;	18	use strict;
15		19
16	_reload_1;	20	_init_vars;
17		21
18	our %COMMAND = ();	22	our %COMMAND = ();
19	our @EVENT;	23	our @EVENT;
20	our %PROP_TYPE;
21	our %PROP_IDX;
22	our $LIBDIR = maps_directory "perl";	24	our $LIBDIR = maps_directory "perl";
23		25
24	our $TICK = MAX_TIME * 1e-6;	26	our $TICK = MAX_TIME * 1e-6;
25	our $TICK_WATCHER;	27	our $TICK_WATCHER;
26	our $NEXT_TICK;	28	our $NEXT_TICK;
		29
		30	our %CFG;
		31
		32	#############################################################################
		33
		34	=head2 GLOBAL VARIABLES
		35
		36	=over 4
		37
		38	=item $cf::LIBDIR
		39
		40	The perl library directory, where extensions and cf-specific modules can
		41	be found. It will be added to C<@INC> automatically.
		42
		43	=item $cf::TICK
		44
		45	The interval between server ticks, in seconds.
		46
		47	=item %cf::CFG
		48
		49	Configuration for the server, loaded from C</etc/crossfire/config>, or
		50	from wherever your confdir points to.
		51
		52	=back
		53
		54	=cut
27		55
28	BEGIN {	56	BEGIN {
29	*CORE::GLOBAL::warn = sub {	57	*CORE::GLOBAL::warn = sub {
30	my $msg = join "", @_;	58	my $msg = join "", @_;
31	$msg .= "\n"	59	$msg .= "\n"
…		…
34	print STDERR "cfperl: $msg";	62	print STDERR "cfperl: $msg";
35	LOG llevError, "cfperl: $msg";	63	LOG llevError, "cfperl: $msg";
36	};	64	};
37	}	65	}
38		66
39	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
40
41	# generate property mutators
42	sub prop_gen {
43	my ($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';	67	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74		68
75	# we bless all objects into (empty) derived classes to force a method lookup	69	# we bless all objects into (empty) derived classes to force a method lookup
76	# within the Safe compartment.	70	# within the Safe compartment.
77	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {	71	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {
78	no strict 'refs';	72	no strict 'refs';
79	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	73	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80	}	74	}
81		75
82	$Event::DIED = sub {	76	$Event::DIED = sub {
…		…
87	my @exts;	81	my @exts;
88	my @hook;	82	my @hook;
89	my %command;	83	my %command;
90	my %extcmd;	84	my %extcmd;
91		85
92	#############################################################################	86	=head2 UTILITY FUNCTIONS
93	# utility functions	87
		88	=over 4
		89
		90	=cut
94		91
95	use JSON::Syck (); # TODO# replace by JSON::PC once working	92	use JSON::Syck (); # TODO# replace by JSON::PC once working
		93
		94	=item $ref = cf::from_json $json
		95
		96	Converts a JSON string into the corresponding perl data structure.
		97
		98	=cut
96		99
97	sub from_json($) {	100	sub from_json($) {
98	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	101	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99	JSON::Syck::Load $_[0]	102	JSON::Syck::Load $_[0]
100	}	103	}
101		104
		105	=item $json = cf::to_json $ref
		106
		107	Converts a perl data structure into its JSON representation.
		108
		109	=cut
		110
102	sub to_json($) {	111	sub to_json($) {
103	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	112	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104	JSON::Syck::Dump $_[0]	113	JSON::Syck::Dump $_[0]
105	}	114	}
106		115
107	#############################################################################	116	=back
108	# "new" plug-in system
109		117
		118	=cut
		119
		120	#############################################################################
		121
		122	=head2 EVENTS AND OBJECT ATTACHMENTS
		123
		124	=over 4
		125
		126	=item $object->attach ($attachment, key => $value...)
		127
110	=item $object->attach ($attachment, ...)	128	=item $object->detach ($attachment)
111		129
112	Attach a pre-registered attachment to an object.	130	Attach/detach a pre-registered attachment to an object.
113		131
		132	=item $player->attach ($attachment, key => $value...)
		133
114	=item $player->attach ($attachment, ...)	134	=item $player->detach ($attachment)
115		135
116	Attach a pre-registered attachment to a player.	136	Attach/detach a pre-registered attachment to a player.
117		137
118	=item $map->attach ($attachment, ...) # not yet persistent	138	=item $map->attach ($attachment, key => $value...)
119		139
		140	=item $map->detach ($attachment)
		141
120	Attach a pre-registered attachment to a map.	142	Attach/detach a pre-registered attachment to a map.
		143
		144	=item $bool = $object->attached ($name)
		145
		146	=item $bool = $player->attached ($name)
		147
		148	=item $bool = $map->attached ($name)
		149
		150	Checks wether the named attachment is currently attached to the object.
121		151
122	=item cf::attach_global ...	152	=item cf::attach_global ...
123		153
124	Attach handlers for global events.	154	Attach handlers for global events.
125		155
…		…
173	=item cf::attach_to_maps ...	203	=item cf::attach_to_maps ...
174		204
175	Attach handlers to all maps.	205	Attach handlers to all maps.
176		206
177	=item cf:register_attachment $name, ...	207	=item cf:register_attachment $name, ...
		208
		209	Register an attachment by name through which objects can refer to this
		210	attachment.
		211
		212	=item cf:register_player_attachment $name, ...
		213
		214	Register an attachment by name through which players can refer to this
		215	attachment.
		216
		217	=item cf:register_map_attachment $name, ...
		218
		219	Register an attachment by name through which maps can refer to this
		220	attachment.
178		221
179	=cut	222	=cut
180		223
181	# the following variables are defined in .xs and must not be re-created	224	# the following variables are defined in .xs and must not be re-created
182	our @CB_GLOBAL = (); # registry for all global events	225	our @CB_GLOBAL = (); # registry for all global events
…		…
245		288
246	\%undo	289	\%undo
247	}	290	}
248		291
249	sub _attach_attachment {	292	sub _attach_attachment {
250	my ($obj, $name, @args) = @_;	293	my ($obj, $name, %arg) = @_;
		294
		295	return if exists $obj->{_attachment}{$name};
251		296
252	my $res;	297	my $res;
253		298
254	if (my $attach = $attachment{$name}) {	299	if (my $attach = $attachment{$name}) {
255	my $registry = $obj->registry;	300	my $registry = $obj->registry;
…		…
257	for (@$attach) {	302	for (@$attach) {
258	my ($klass, @attach) = @$_;	303	my ($klass, @attach) = @$_;
259	$res = _attach @$registry, $klass, @attach;	304	$res = _attach @$registry, $klass, @attach;
260	}	305	}
261		306
262	if (my $cb = delete $registry->[EVENT_OBJECT_INSTANTIATE]) {	307	$obj->{$name} = \%arg;
263	for (@$cb) {
264	eval { $_->[1]->($obj, @args); };
265	if ($@) {
266	warn "$@";
267	warn "... while processing '$name' instantiate with args <@args>.\n";
268	}
269	}
270	}
271	} else {	308	} else {
272	warn "object uses attachment '$name' that is not available, postponing.\n";	309	warn "object uses attachment '$name' that is not available, postponing.\n";
273	}	310	}
274		311
275	push @{$obj->{_attachment}}, $name;	312	$obj->{_attachment}{$name} = undef;
276		313
277	$res->{attachment} = $name;	314	$res->{attachment} = $name;
278	$res	315	$res
279	}	316	}
280		317
281	sub cf::object::attach {	318	*cf::object::attach =
		319	*cf::player::attach =
		320	*cf::map::attach = sub {
282	my ($obj, $name, @args) = @_;	321	my ($obj, $name, %arg) = @_;
283		322
284	_attach_attachment $obj, $name, @args;	323	_attach_attachment $obj, $name, %arg;
285	}	324	};
286		325
		326	# all those should be optimised
		327	*cf::object::detach =
287	sub cf::player::attach {	328	*cf::player::detach =
		329	*cf::map::detach = sub {
288	my ($obj, $name, @args) = @_;	330	my ($obj, $name) = @_;
289		331
290	_attach_attachment KLASS_PLAYER, $obj, $name, @args;	332	delete $obj->{_attachment}{$name};
291	}	333	reattach ($obj);
		334	};
292		335
293	sub cf::map::attach {	336	*cf::object::attached =
		337	*cf::player::attached =
		338	*cf::map::attached = sub {
294	my ($obj, $name, @args) = @_;	339	my ($obj, $name) = @_;
295		340
296	_attach_attachment KLASS_MAP, $obj, $name, @args;	341	exists $obj->{_attachment}{$name}
297	}	342	};
298		343
299	sub attach_global {	344	sub attach_global {
300	_attach @CB_GLOBAL, KLASS_GLOBAL, @_	345	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
301	}	346	}
302		347
…		…
323	my $name = shift;	368	my $name = shift;
324		369
325	$attachment{$name} = [[KLASS_OBJECT, @_]];	370	$attachment{$name} = [[KLASS_OBJECT, @_]];
326	}	371	}
327		372
		373	sub register_player_attachment {
		374	my $name = shift;
		375
		376	$attachment{$name} = [[KLASS_PLAYER, @_]];
		377	}
		378
		379	sub register_map_attachment {
		380	my $name = shift;
		381
		382	$attachment{$name} = [[KLASS_MAP, @_]];
		383	}
		384
328	our $override;	385	our $override;
329	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	386	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
330		387
331	sub override {	388	sub override {
332	$override = 1;	389	$override = 1;
…		…
344	for (@$callbacks) {	401	for (@$callbacks) {
345	eval { &{$_->[1]} };	402	eval { &{$_->[1]} };
346		403
347	if ($@) {	404	if ($@) {
348	warn "$@";	405	warn "$@";
349	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	406	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
350	override;	407	override;
351	}	408	}
352		409
353	return 1 if $override;	410	return 1 if $override;
354	}	411	}
355		412
356	0	413	0
357	}	414	}
		415
		416	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...
		417
		418	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
		419
		420	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
		421
		422	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
		423
		424	Generate a global/object/player/map-specific event with the given arguments.
		425
		426	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
		427	removed in future versions), and there is no public API to access override
		428	results (if you must, access C<@cf::invoke_results> directly).
		429
		430	=back
		431
		432	=cut
		433
		434	#############################################################################
		435
		436	=head2 METHODS VALID FOR ALL CORE OBJECTS
		437
		438	=over 4
		439
		440	=item $object->valid, $player->valid, $map->valid
		441
		442	Just because you have a perl object does not mean that the corresponding
		443	C-level object still exists. If you try to access an object that has no
		444	valid C counterpart anymore you get an exception at runtime. This method
		445	can be used to test for existence of the C object part without causing an
		446	exception.
		447
		448	=back
		449
		450	=cut
		451
		452	*cf::object::valid =
		453	*cf::player::valid =
		454	*cf::map::valid = \&cf::_valid;
358		455
359	#############################################################################	456	#############################################################################
360	# object support	457	# object support
361		458
362	sub instantiate {	459	sub instantiate {
…		…
364		461
365	$data = from_json $data;	462	$data = from_json $data;
366		463
367	for (@$data) {	464	for (@$data) {
368	my ($name, $args) = @$_;	465	my ($name, $args) = @$_;
369	attach $obj, $name, @{$args \|\| [] };	466
		467	$obj->attach ($name, %{$args \|\| {} });
370	}	468	}
371	}	469	}
372		470
373	# basically do the same as instantiate, without calling instantiate	471	# basically do the same as instantiate, without calling instantiate
374	sub reattach {	472	sub reattach {
375	my ($obj) = @_;	473	my ($obj) = @_;
376	my $registry = $obj->registry;	474	my $registry = $obj->registry;
377		475
378	@$registry = ();	476	@$registry = ();
379		477
		478	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };
		479
380	for my $name (@{ $obj->{_attachment} }) {	480	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {
381	if (my $attach = $attachment{$name}) {	481	if (my $attach = $attachment{$name}) {
382	for (@$attach) {	482	for (@$attach) {
383	my ($klass, @attach) = @$_;	483	my ($klass, @attach) = @$_;
384	_attach @$registry, $klass, @attach;	484	_attach @$registry, $klass, @attach;
385	}	485	}
…		…
388	}	488	}
389	}	489	}
390	}	490	}
391		491
392	sub object_freezer_save {	492	sub object_freezer_save {
393	my ($filename, $objs) = @_;	493	my ($filename, $rdata, $objs) = @_;
394		494
395	$filename .= ".pst";	495	if (length $$rdata) {
		496	warn sprintf "saving %s (%d,%d)\n",
		497	$filename, length $$rdata, scalar @$objs;
396		498
397	if (@$objs) {
398	open my $fh, ">:raw", "$filename~";	499	if (open my $fh, ">:raw", "$filename~") {
399	chmod $fh, SAVE_MODE;	500	chmod SAVE_MODE, $fh;
		501	syswrite $fh, $$rdata;
		502	close $fh;
		503
		504	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
		505	chmod SAVE_MODE, $fh;
400	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	506	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
401	close $fh;	507	close $fh;
		508	rename "$filename.pst~", "$filename.pst";
		509	} else {
		510	unlink "$filename.pst";
		511	}
		512
402	rename "$filename~", $filename;	513	rename "$filename~", $filename;
		514	} else {
		515	warn "FATAL: $filename~: $!\n";
		516	}
403	} else {	517	} else {
404	unlink $filename;	518	unlink $filename;
		519	unlink "$filename.pst";
405	}	520	}
406	}	521	}
407		522
408	sub object_thawer_load {	523	sub object_thawer_load {
409	my ($filename) = @_;	524	my ($filename) = @_;
410		525
		526	local $/;
		527
		528	my $av;
		529
		530	#TODO: use sysread etc.
		531	if (open my $data, "<:raw:perlio", $filename) {
		532	$data = <$data>;
411	open my $fh, "<:raw:perlio", "$filename.pst"	533	if (open my $pst, "<:raw:perlio", "$filename.pst") {
412	or return;	534	$av = eval { (Storable::thaw <$pst>)->{objs} };
		535	}
		536	return ($data, $av);
		537	}
413		538
414	eval { local $/; (Storable::thaw <$fh>)->{objs} }	539	()
415	}	540	}
416		541
417	attach_to_objects	542	attach_to_objects
418	prio => -1000000,	543	prio => -1000000,
419	on_clone => sub {	544	on_clone => sub {
…		…
421		546
422	@{$dst->registry} = @{$src->registry};	547	@{$dst->registry} = @{$src->registry};
423		548
424	%$dst = %$src;	549	%$dst = %$src;
425		550
426	$dst->{_attachment} = [@{ $src->{_attachment} }]	551	%{$dst->{_attachment}} = %{$src->{_attachment}}
427	if exists $src->{_attachment};	552	if exists $src->{_attachment};
428	},	553	},
429	;	554	;
430		555
431	#############################################################################	556	#############################################################################
…		…
565	load_extension $ext;	690	load_extension $ext;
566	1	691	1
567	} or warn "$ext not loaded: $@";	692	} or warn "$ext not loaded: $@";
568	}	693	}
569	}	694	}
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		695
644	#############################################################################	696	#############################################################################
645	# extcmd framework, basically convert ext <msg>	697	# extcmd framework, basically convert ext <msg>
646	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few	698	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
647		699
…		…
672	my ($map) = @_;	724	my ($map) = @_;
673		725
674	my $path = $map->tmpname;	726	my $path = $map->tmpname;
675	defined $path or return;	727	defined $path or return;
676		728
677	unlink "$path.cfperl";
678	unlink "$path.pst";	729	unlink "$path.pst";
679	};	730	};
680		731
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::;	732	attach_to_maps prio => -10000, package => cf::mapsupport::;
700		733
701	#############################################################################	734	#############################################################################
702	# load/save perl data associated with player->ob objects	735	# load/save perl data associated with player->ob objects
703		736
704	sub all_objects(@) {	737	sub all_objects(@) {
705	@_, map all_objects ($_->inv), @_	738	@_, map all_objects ($_->inv), @_
706	}	739	}
707		740
		741	# TODO: compatibility cruft, remove when no longer needed
708	attach_to_players	742	attach_to_players
709	on_load => sub {	743	on_load => sub {
710	my ($pl, $path) = @_;	744	my ($pl, $path) = @_;
711		745
712	for my $o (all_objects $pl->ob) {	746	for my $o (all_objects $pl->ob) {
…		…
718	}	752	}
719	},	753	},
720	;	754	;
721		755
722	#############################################################################	756	#############################################################################
723	# core extensions - in perl	757
		758	=head2 CORE EXTENSIONS
		759
		760	Functions and methods that extend core crossfire objects.
		761
		762	=over 4
724		763
725	=item cf::player::exists $login	764	=item cf::player::exists $login
726		765
727	Returns true when the given account exists.	766	Returns true when the given account exists.
728		767
…		…
731	sub cf::player::exists($) {	770	sub cf::player::exists($) {
732	cf::player::find $_[0]	771	cf::player::find $_[0]
733	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	772	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
734	}	773	}
735		774
736	=item $player->reply ($npc, $msg[, $flags])	775	=item $object->reply ($npc, $msg[, $flags])
737		776
738	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	777	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	778	can be C<undef>. Does the right thing when the player is currently in a
740	dialogue with the given NPC character.	779	dialogue with the given NPC character.
741		780
…		…
768	$msg{msgid} = $id;	807	$msg{msgid} = $id;
769		808
770	$self->send ("ext " . to_json \%msg);	809	$self->send ("ext " . to_json \%msg);
771	}	810	}
772		811
		812	=back
		813
		814	=cut
		815
773	#############################################################################	816	#############################################################################
774	# map scripting support	817
		818	=head2 SAFE SCRIPTING
		819
		820	Functions that provide a safe environment to compile and execute
		821	snippets of perl code without them endangering the safety of the server
		822	itself. Looping constructs, I/O operators and other built-in functionality
		823	is not available in the safe scripting environment, and the number of
		824	functions and methods that cna be called is greatly reduced.
		825
		826	=cut
775		827
776	our $safe = new Safe "safe";	828	our $safe = new Safe "safe";
777	our $safe_hole = new Safe::Hole;	829	our $safe_hole = new Safe::Hole;
778		830
779	$SIG{FPE} = 'IGNORE';	831	$SIG{FPE} = 'IGNORE';
780		832
781	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	833	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
782		834
783	# here we export the classes and methods available to script code	835	# here we export the classes and methods available to script code
		836
		837	=pod
		838
		839	The following fucntions and emthods are available within a safe environment:
		840
		841	cf::object contr pay_amount pay_player
		842	cf::object::player player
		843	cf::player peaceful
		844
		845	=cut
784		846
785	for (	847	for (
786	["cf::object" => qw(contr pay_amount pay_player)],	848	["cf::object" => qw(contr pay_amount pay_player)],
787	["cf::object::player" => qw(player)],	849	["cf::object::player" => qw(player)],
788	["cf::player" => qw(peaceful)],	850	["cf::player" => qw(peaceful)],
…		…
791	my ($pkg, @funs) = @$_;	853	my ($pkg, @funs) = @$_;
792	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	854	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
793	for @funs;	855	for @funs;
794	}	856	}
795		857
		858	=over 4
		859
		860	=item @retval = safe_eval $code, [var => value, ...]
		861
		862	Compiled and executes the given perl code snippet. additional var/value
		863	pairs result in temporary local (my) scalar variables of the given name
		864	that are available in the code snippet. Example:
		865
		866	my $five = safe_eval '$first + $second', first => 1, second => 4;
		867
		868	=cut
		869
796	sub safe_eval($;@) {	870	sub safe_eval($;@) {
797	my ($code, %vars) = @_;	871	my ($code, %vars) = @_;
798		872
799	my $qcode = $code;	873	my $qcode = $code;
800	$qcode =~ s/"/‟/g; # not allowed in #line filenames	874	$qcode =~ s/"/‟/g; # not allowed in #line filenames
…		…
822	}	896	}
823		897
824	wantarray ? @res : $res[0]	898	wantarray ? @res : $res[0]
825	}	899	}
826		900
		901	=item cf::register_script_function $function => $cb
		902
		903	Register a function that can be called from within map/npc scripts. The
		904	function should be reasonably secure and should be put into a package name
		905	like the extension.
		906
		907	Example: register a function that gets called whenever a map script calls
		908	C<rent::overview>, as used by the C<rent> extension.
		909
		910	cf::register_script_function "rent::overview" => sub {
		911	...
		912	};
		913
		914	=cut
		915
827	sub register_script_function {	916	sub register_script_function {
828	my ($fun, $cb) = @_;	917	my ($fun, $cb) = @_;
829		918
830	no strict 'refs';	919	no strict 'refs';
831	*{"safe::$fun"} = $safe_hole->wrap ($cb);	920	*{"safe::$fun"} = $safe_hole->wrap ($cb);
832	}	921	}
833		922
		923	=back
		924
		925	=cut
		926
		927	#############################################################################
		928
		929	=head2 EXTENSION DATABASE SUPPORT
		930
		931	Crossfire maintains a very simple database for extension use. It can
		932	currently store anything that can be serialised using Storable, which
		933	excludes objects.
		934
		935	The parameter C<$family> should best start with the name of the extension
		936	using it, it should be unique.
		937
		938	=over 4
		939
		940	=item $hashref = cf::db_get $family
		941
		942	Return a hashref for use by the extension C<$family>, which can be
		943	modified. After modifications, you have to call C<cf::db_dirty> or
		944	C<cf::db_sync>.
		945
		946	=item $value = cf::db_get $family => $key
		947
		948	Returns a single value from the database
		949
		950	=item cf::db_put $family => $hashref
		951
		952	Stores the given family hashref into the database. Updates are delayed, if
		953	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		954
		955	=item cf::db_put $family => $key => $value
		956
		957	Stores the given C<$value> in the family hash. Updates are delayed, if you
		958	want the data to be synced to disk immediately, use C<cf::db_sync>.
		959
		960	=item cf::db_dirty
		961
		962	Marks the database as dirty, to be updated at a later time.
		963
		964	=item cf::db_sync
		965
		966	Immediately write the database to disk I<if it is dirty>.
		967
		968	=cut
		969
		970	{
		971	my $db;
		972	my $path = cf::localdir . "/database.pst";
		973
		974	sub db_load() {
		975	warn "loading database $path\n";#d# remove later
		976	$db = stat $path ? Storable::retrieve $path : { };
		977	}
		978
		979	my $pid;
		980
		981	sub db_save() {
		982	warn "saving database $path\n";#d# remove later
		983	waitpid $pid, 0 if $pid;
		984	if (0 == ($pid = fork)) {
		985	$db->{_meta}{version} = 1;
		986	Storable::nstore $db, "$path~";
		987	rename "$path~", $path;
		988	cf::_exit 0 if defined $pid;
		989	}
		990	}
		991
		992	my $dirty;
		993
		994	sub db_sync() {
		995	db_save if $dirty;
		996	undef $dirty;
		997	}
		998
		999	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {
		1000	db_sync;
		1001	});
		1002
		1003	sub db_dirty() {
		1004	$dirty = 1;
		1005	$idle->start;
		1006	}
		1007
		1008	sub db_get($;$) {
		1009	@_ >= 2
		1010	? $db->{$_[0]}{$_[1]}
		1011	: ($db->{$_[0]} \|\|= { })
		1012	}
		1013
		1014	sub db_put($$;$) {
		1015	if (@_ >= 3) {
		1016	$db->{$_[0]}{$_[1]} = $_[2];
		1017	} else {
		1018	$db->{$_[0]} = $_[1];
		1019	}
		1020	db_dirty;
		1021	}
		1022
		1023	attach_global
		1024	prio => 10000,
		1025	on_cleanup => sub {
		1026	db_sync;
		1027	},
		1028	;
		1029	}
		1030
834	#############################################################################	1031	#############################################################################
835	# the server's main()	1032	# the server's main()
836		1033
		1034	sub cfg_load {
		1035	open my $fh, "<:utf8", cf::confdir . "/config"
		1036	or return;
		1037
		1038	local $/;
		1039	*CFG = YAML::Syck::Load <$fh>;
		1040	}
		1041
837	sub main {	1042	sub main {
		1043	cfg_load;
		1044	db_load;
		1045	load_extensions;
838	Event::loop;	1046	Event::loop;
839	}	1047	}
840		1048
841	#############################################################################	1049	#############################################################################
842	# initialisation	1050	# initialisation
843		1051
		1052	sub _perl_reload(&) {
		1053	my ($msg) = @_;
		1054
		1055	$msg->("reloading...");
		1056
		1057	eval {
		1058	# cancel all watchers
		1059	$_->cancel for Event::all_watchers;
		1060
		1061	# unload all extensions
		1062	for (@exts) {
		1063	$msg->("unloading <$_>");
		1064	unload_extension $_;
		1065	}
		1066
		1067	# unload all modules loaded from $LIBDIR
		1068	while (my ($k, $v) = each %INC) {
		1069	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		1070
		1071	$msg->("removing <$k>");
		1072	delete $INC{$k};
		1073
		1074	$k =~ s/\.pm$//;
		1075	$k =~ s/\//::/g;
		1076
		1077	if (my $cb = $k->can ("unload_module")) {
		1078	$cb->();
		1079	}
		1080
		1081	Symbol::delete_package $k;
		1082	}
		1083
		1084	# sync database to disk
		1085	cf::db_sync;
		1086
		1087	# get rid of safe::, as good as possible
		1088	Symbol::delete_package "safe::$_"
		1089	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
		1090
		1091	# remove register_script_function callbacks
		1092	# TODO
		1093
		1094	# unload cf.pm "a bit"
		1095	delete $INC{"cf.pm"};
		1096
		1097	# don't, removes xs symbols, too,
		1098	# and global variables created in xs
		1099	#Symbol::delete_package __PACKAGE__;
		1100
		1101	# reload cf.pm
		1102	$msg->("reloading cf.pm");
		1103	require cf;
		1104
		1105	# load config and database again
		1106	cf::cfg_load;
		1107	cf::db_load;
		1108
		1109	# load extensions
		1110	$msg->("load extensions");
		1111	cf::load_extensions;
		1112
		1113	# reattach attachments to objects
		1114	$msg->("reattach");
		1115	_global_reattach;
		1116	};
		1117	$msg->($@) if $@;
		1118
		1119	$msg->("reloaded");
		1120	};
		1121
		1122	sub perl_reload() {
		1123	_perl_reload {
		1124	warn $_[0];
		1125	print "$_[0]\n";
		1126	};
		1127	}
		1128
		1129	register_command "perl-reload", 0, sub {
		1130	my ($who, $arg) = @_;
		1131
		1132	if ($who->flag (FLAG_WIZ)) {
		1133	_perl_reload {
		1134	warn $_[0];
		1135	$who->message ($_[0]);
		1136	};
		1137	}
		1138	};
		1139
844	register "<global>", __PACKAGE__;	1140	register "<global>", __PACKAGE__;
845		1141
846	unshift @INC, $LIBDIR;	1142	unshift @INC, $LIBDIR;
847
848	load_extensions;
849		1143
850	$TICK_WATCHER = Event->timer (	1144	$TICK_WATCHER = Event->timer (
851	prio => 1,	1145	prio => 1,
852	at => $NEXT_TICK \|\| 1,	1146	at => $NEXT_TICK \|\| 1,
853	cb => sub {	1147	cb => sub {
…		…
862	$TICK_WATCHER->at ($NEXT_TICK);	1156	$TICK_WATCHER->at ($NEXT_TICK);
863	$TICK_WATCHER->start;	1157	$TICK_WATCHER->start;
864	},	1158	},
865	);	1159	);
866		1160
867	_reload_2;
868
869	1	1161	1
870		1162

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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 1.75 by root, Mon Oct 2 00:22:01 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 1.75 by root, Mon Oct 2 00:22:01 2006 UTC