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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.48 by root, Sun Aug 27 15:24:22 2006 UTC vs.
Revision 1.71 by root, Sun Oct 1 10:59:30 2006 UTC

…		…
11	use Event;	11	use Event;
12	$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
13		13
14	use strict;	14	use strict;
15		15
16	_reload_1;	16	_init_vars;
17		17
18	our %COMMAND = ();	18	our %COMMAND = ();
19	our @EVENT;	19	our @EVENT;
20	our %PROP_TYPE;
21	our %PROP_IDX;
22	our $LIBDIR = maps_directory "perl";	20	our $LIBDIR = maps_directory "perl";
23		21
24	our $TICK = MAX_TIME * 1e-6;	22	our $TICK = MAX_TIME * 1e-6;
25	our $TICK_WATCHER;	23	our $TICK_WATCHER;
26	our $NEXT_TICK;	24	our $NEXT_TICK;
		25
		26	our %CFG;
		27
		28	#############################################################################
		29
		30	=head2 GLOBAL VARIABLES
		31
		32	=over 4
		33
		34	=item $cf::LIBDIR
		35
		36	The perl library directory, where extensions and cf-specific modules can
		37	be found. It will be added to C<@INC> automatically.
		38
		39	=item $cf::TICK
		40
		41	The interval between server ticks, in seconds.
		42
		43	=item %cf::CFG
		44
		45	Configuration for the server, loaded from C</etc/crossfire/config>, or
		46	from wherever your confdir points to.
		47
		48	=back
		49
		50	=cut
27		51
28	BEGIN {	52	BEGIN {
29	*CORE::GLOBAL::warn = sub {	53	*CORE::GLOBAL::warn = sub {
30	my $msg = join "", @_;	54	my $msg = join "", @_;
31	$msg .= "\n"	55	$msg .= "\n"
…		…
34	print STDERR "cfperl: $msg";	58	print STDERR "cfperl: $msg";
35	LOG llevError, "cfperl: $msg";	59	LOG llevError, "cfperl: $msg";
36	};	60	};
37	}	61	}
38		62
39	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
40
41	# generate property mutators
42	sub prop_gen {
43	my ($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';	63	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74		64
75	# we bless all objects into (empty) derived classes to force a method lookup	65	# we bless all objects into (empty) derived classes to force a method lookup
76	# within the Safe compartment.	66	# within the Safe compartment.
77	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {	67	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {
78	no strict 'refs';	68	no strict 'refs';
79	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	69	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80	}	70	}
81		71
82	$Event::DIED = sub {	72	$Event::DIED = sub {
…		…
87	my @exts;	77	my @exts;
88	my @hook;	78	my @hook;
89	my %command;	79	my %command;
90	my %extcmd;	80	my %extcmd;
91		81
92	#############################################################################	82	=head2 UTILITY FUNCTIONS
93	# utility functions	83
		84	=over 4
		85
		86	=cut
94		87
95	use JSON::Syck (); # TODO# replace by JSON::PC once working	88	use JSON::Syck (); # TODO# replace by JSON::PC once working
		89
		90	=item $ref = cf::from_json $json
		91
		92	Converts a JSON string into the corresponding perl data structure.
		93
		94	=cut
96		95
97	sub from_json($) {	96	sub from_json($) {
98	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	97	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99	JSON::Syck::Load $_[0]	98	JSON::Syck::Load $_[0]
100	}	99	}
101		100
		101	=item $json = cf::to_json $ref
		102
		103	Converts a perl data structure into its JSON representation.
		104
		105	=cut
		106
102	sub to_json($) {	107	sub to_json($) {
103	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	108	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104	JSON::Syck::Dump $_[0]	109	JSON::Syck::Dump $_[0]
105	}	110	}
106		111
		112	=back
		113
		114	=cut
		115
107	#############################################################################	116	#############################################################################
108	# "new" plug-in system	117
		118	=head2 EVENTS AND OBJECT ATTACHMENTS
		119
		120	=over 4
109		121
110	=item $object->attach ($attachment, key => $value...)	122	=item $object->attach ($attachment, key => $value...)
111		123
		124	=item $object->detach ($attachment)
		125
112	Attach a pre-registered attachment to an object.	126	Attach/detach a pre-registered attachment to an object.
113		127
114	=item $player->attach ($attachment, key => $value...)	128	=item $player->attach ($attachment, key => $value...)
115		129
		130	=item $player->detach ($attachment)
		131
116	Attach a pre-registered attachment to a player.	132	Attach/detach a pre-registered attachment to a player.
117		133
118	=item $map->attach ($attachment, key => $value...) # not yet persistent	134	=item $map->attach ($attachment, key => $value...)
119		135
		136	=item $map->detach ($attachment)
		137
120	Attach a pre-registered attachment to a map.	138	Attach/detach a pre-registered attachment to a map.
		139
		140	=item $bool = $object->attached ($name)
		141
		142	=item $bool = $player->attached ($name)
		143
		144	=item $bool = $map->attached ($name)
		145
		146	Checks wether the named attachment is currently attached to the object.
121		147
122	=item cf::attach_global ...	148	=item cf::attach_global ...
123		149
124	Attach handlers for global events.	150	Attach handlers for global events.
125		151
…		…
173	=item cf::attach_to_maps ...	199	=item cf::attach_to_maps ...
174		200
175	Attach handlers to all maps.	201	Attach handlers to all maps.
176		202
177	=item cf:register_attachment $name, ...	203	=item cf:register_attachment $name, ...
		204
		205	Register an attachment by name through which objects can refer to this
		206	attachment.
		207
		208	=item cf:register_player_attachment $name, ...
		209
		210	Register an attachment by name through which players can refer to this
		211	attachment.
		212
		213	=item cf:register_map_attachment $name, ...
		214
		215	Register an attachment by name through which maps can refer to this
		216	attachment.
178		217
179	=cut	218	=cut
180		219
181	# the following variables are defined in .xs and must not be re-created	220	# the following variables are defined in .xs and must not be re-created
182	our @CB_GLOBAL = (); # registry for all global events	221	our @CB_GLOBAL = (); # registry for all global events
…		…
247	}	286	}
248		287
249	sub _attach_attachment {	288	sub _attach_attachment {
250	my ($obj, $name, %arg) = @_;	289	my ($obj, $name, %arg) = @_;
251		290
		291	return if exists $obj->{_attachment}{$name};
		292
252	my $res;	293	my $res;
253		294
254	if (my $attach = $attachment{$name}) {	295	if (my $attach = $attachment{$name}) {
255	my $registry = $obj->registry;	296	my $registry = $obj->registry;
256		297
…		…
262	$obj->{$name} = \%arg;	303	$obj->{$name} = \%arg;
263	} else {	304	} else {
264	warn "object uses attachment '$name' that is not available, postponing.\n";	305	warn "object uses attachment '$name' that is not available, postponing.\n";
265	}	306	}
266		307
267	push @{$obj->{_attachment}}, $name;	308	$obj->{_attachment}{$name} = undef;
268		309
269	$res->{attachment} = $name;	310	$res->{attachment} = $name;
270	$res	311	$res
271	}	312	}
272		313
273	sub cf::object::attach {	314	*cf::object::attach =
		315	*cf::player::attach =
		316	*cf::map::attach = sub {
274	my ($obj, $name, %arg) = @_;	317	my ($obj, $name, %arg) = @_;
275		318
276	_attach_attachment $obj, $name, %arg;	319	_attach_attachment $obj, $name, %arg;
277	}	320	};
278		321
		322	# all those should be optimised
		323	*cf::object::detach =
279	sub cf::player::attach {	324	*cf::player::detach =
		325	*cf::map::detach = sub {
280	my ($obj, $name, %arg) = @_;	326	my ($obj, $name) = @_;
281		327
282	_attach_attachment KLASS_PLAYER, $obj, $name, %arg;	328	delete $obj->{_attachment}{$name};
283	}	329	reattach ($obj);
		330	};
284		331
285	sub cf::map::attach {	332	*cf::object::attached =
		333	*cf::player::attached =
		334	*cf::map::attached = sub {
286	my ($obj, $name, %arg) = @_;	335	my ($obj, $name) = @_;
287		336
288	_attach_attachment KLASS_MAP, $obj, $name, %arg;	337	exists $obj->{_attachment}{$name}
289	}	338	};
290		339
291	sub attach_global {	340	sub attach_global {
292	_attach @CB_GLOBAL, KLASS_GLOBAL, @_	341	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
293	}	342	}
294		343
…		…
315	my $name = shift;	364	my $name = shift;
316		365
317	$attachment{$name} = [[KLASS_OBJECT, @_]];	366	$attachment{$name} = [[KLASS_OBJECT, @_]];
318	}	367	}
319		368
		369	sub register_player_attachment {
		370	my $name = shift;
		371
		372	$attachment{$name} = [[KLASS_PLAYER, @_]];
		373	}
		374
		375	sub register_map_attachment {
		376	my $name = shift;
		377
		378	$attachment{$name} = [[KLASS_MAP, @_]];
		379	}
		380
320	our $override;	381	our $override;
321	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	382	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
322		383
323	sub override {	384	sub override {
324	$override = 1;	385	$override = 1;
…		…
336	for (@$callbacks) {	397	for (@$callbacks) {
337	eval { &{$_->[1]} };	398	eval { &{$_->[1]} };
338		399
339	if ($@) {	400	if ($@) {
340	warn "$@";	401	warn "$@";
341	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	402	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
342	override;	403	override;
343	}	404	}
344		405
345	return 1 if $override;	406	return 1 if $override;
346	}	407	}
347		408
348	0	409	0
349	}	410	}
		411
		412	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...
		413
		414	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
		415
		416	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
		417
		418	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
		419
		420	Generate a global/object/player/map-specific event with the given arguments.
		421
		422	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
		423	removed in future versions), and there is no public API to access override
		424	results (if you must, access C<@cf::invoke_results> directly).
		425
		426	=back
		427
		428	=cut
		429
		430	#############################################################################
		431
		432	=head2 METHODS VALID FOR ALL CORE OBJECTS
		433
		434	=over 4
		435
		436	=item $object->valid, $player->valid, $map->valid
		437
		438	Just because you have a perl object does not mean that the corresponding
		439	C-level object still exists. If you try to access an object that has no
		440	valid C counterpart anymore you get an exception at runtime. This method
		441	can be used to test for existence of the C object part without causing an
		442	exception.
		443
		444	=back
		445
		446	=cut
		447
		448	*cf::object::valid =
		449	*cf::player::valid =
		450	*cf::map::valid = \&cf::_valid;
350		451
351	#############################################################################	452	#############################################################################
352	# object support	453	# object support
353		454
354	sub instantiate {	455	sub instantiate {
…		…
356		457
357	$data = from_json $data;	458	$data = from_json $data;
358		459
359	for (@$data) {	460	for (@$data) {
360	my ($name, $args) = @$_;	461	my ($name, $args) = @$_;
		462
361	attach $obj, $name, %{$args \|\| {} };	463	$obj->attach ($name, %{$args \|\| {} });
362	}	464	}
363	}	465	}
364		466
365	# basically do the same as instantiate, without calling instantiate	467	# basically do the same as instantiate, without calling instantiate
366	sub reattach {	468	sub reattach {
367	my ($obj) = @_;	469	my ($obj) = @_;
368	my $registry = $obj->registry;	470	my $registry = $obj->registry;
369		471
370	@$registry = ();	472	@$registry = ();
371		473
		474	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };
		475
372	for my $name (@{ $obj->{_attachment} }) {	476	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {
373	if (my $attach = $attachment{$name}) {	477	if (my $attach = $attachment{$name}) {
374	for (@$attach) {	478	for (@$attach) {
375	my ($klass, @attach) = @$_;	479	my ($klass, @attach) = @$_;
376	_attach @$registry, $klass, @attach;	480	_attach @$registry, $klass, @attach;
377	}	481	}
…		…
380	}	484	}
381	}	485	}
382	}	486	}
383		487
384	sub object_freezer_save {	488	sub object_freezer_save {
385	my ($filename, $objs) = @_;	489	my ($filename, $rdata, $objs) = @_;
386		490
387	$filename .= ".pst";	491	if (length $$rdata) {
		492	warn sprintf "saving %s (%d,%d)\n",
		493	$filename, length $$rdata, scalar @$objs;
388		494
389	if (@$objs) {
390	open my $fh, ">:raw", "$filename~";	495	if (open my $fh, ">:raw", "$filename~") {
391	chmod $fh, SAVE_MODE;	496	chmod SAVE_MODE, $fh;
		497	syswrite $fh, $$rdata;
		498	close $fh;
		499
		500	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
		501	chmod SAVE_MODE, $fh;
392	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	502	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
393	close $fh;	503	close $fh;
		504	rename "$filename.pst~", "$filename.pst";
		505	} else {
		506	unlink "$filename.pst";
		507	}
		508
394	rename "$filename~", $filename;	509	rename "$filename~", $filename;
		510	} else {
		511	warn "FATAL: $filename~: $!\n";
		512	}
395	} else {	513	} else {
396	unlink $filename;	514	unlink $filename;
		515	unlink "$filename.pst";
397	}	516	}
398	}	517	}
399		518
400	sub object_thawer_load {	519	sub object_thawer_load {
401	my ($filename) = @_;	520	my ($filename) = @_;
402		521
		522	local $/;
		523
		524	my $av;
		525
		526	#TODO: use sysread etc.
		527	if (open my $data, "<:raw:perlio", $filename) {
		528	$data = <$data>;
403	open my $fh, "<:raw:perlio", "$filename.pst"	529	if (open my $pst, "<:raw:perlio", "$filename.pst") {
404	or return;	530	$av = eval { (Storable::thaw <$pst>)->{objs} };
		531	}
		532	return ($data, $av);
		533	}
405		534
406	eval { local $/; (Storable::thaw <$fh>)->{objs} }	535	()
407	}	536	}
408		537
409	attach_to_objects	538	attach_to_objects
410	prio => -1000000,	539	prio => -1000000,
411	on_clone => sub {	540	on_clone => sub {
…		…
413		542
414	@{$dst->registry} = @{$src->registry};	543	@{$dst->registry} = @{$src->registry};
415		544
416	%$dst = %$src;	545	%$dst = %$src;
417		546
418	$dst->{_attachment} = [@{ $src->{_attachment} }]	547	%{$dst->{_attachment}} = %{$src->{_attachment}}
419	if exists $src->{_attachment};	548	if exists $src->{_attachment};
420	},	549	},
421	;	550	;
422		551
423	#############################################################################	552	#############################################################################
…		…
557	load_extension $ext;	686	load_extension $ext;
558	1	687	1
559	} or warn "$ext not loaded: $@";	688	} or warn "$ext not loaded: $@";
560	}	689	}
561	}	690	}
562
563	sub _perl_reload(&) {
564	my ($msg) = @_;
565
566	$msg->("reloading...");
567
568	eval {
569	# 1. cancel all watchers
570	$_->cancel for Event::all_watchers;
571
572	# 2. unload all extensions
573	for (@exts) {
574	$msg->("unloading <$_>");
575	unload_extension $_;
576	}
577
578	# 3. unload all modules loaded from $LIBDIR
579	while (my ($k, $v) = each %INC) {
580	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
581
582	$msg->("removing <$k>");
583	delete $INC{$k};
584
585	$k =~ s/\.pm$//;
586	$k =~ s/\//::/g;
587
588	if (my $cb = $k->can ("unload_module")) {
589	$cb->();
590	}
591
592	Symbol::delete_package $k;
593	}
594
595	# 4. get rid of safe::, as good as possible
596	Symbol::delete_package "safe::$_"
597	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
598
599	# 5. remove register_script_function callbacks
600	# TODO
601
602	# 6. unload cf.pm "a bit"
603	delete $INC{"cf.pm"};
604
605	# don't, removes xs symbols, too,
606	# and global variables created in xs
607	#Symbol::delete_package __PACKAGE__;
608
609	# 7. reload cf.pm
610	$msg->("reloading cf.pm");
611	require cf;
612	};
613	$msg->($@) if $@;
614
615	$msg->("reloaded");
616	};
617
618	sub perl_reload() {
619	_perl_reload {
620	warn $_[0];
621	print "$_[0]\n";
622	};
623	}
624
625	register_command "perl-reload", 0, sub {
626	my ($who, $arg) = @_;
627
628	if ($who->flag (FLAG_WIZ)) {
629	_perl_reload {
630	warn $_[0];
631	$who->message ($_[0]);
632	};
633	}
634	};
635		691
636	#############################################################################	692	#############################################################################
637	# extcmd framework, basically convert ext <msg>	693	# extcmd framework, basically convert ext <msg>
638	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few	694	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
639		695
…		…
664	my ($map) = @_;	720	my ($map) = @_;
665		721
666	my $path = $map->tmpname;	722	my $path = $map->tmpname;
667	defined $path or return;	723	defined $path or return;
668		724
669	unlink "$path.cfperl";
670	unlink "$path.pst";	725	unlink "$path.pst";
671	};	726	};
672		727
673	*cf::mapsupport::on_swapin =
674	*cf::mapsupport::on_load = sub {
675	my ($map) = @_;
676
677	my $path = $map->tmpname;
678	$path = $map->path unless defined $path;
679
680	open my $fh, "<:raw", "$path.cfperl"
681	or return; # no perl data
682
683	my $data = Storable::thaw do { local $/; <$fh> };
684
685	$data->{version} <= 1
686	or return; # too new
687
688	$map->_set_obs ($data->{obs});
689	};
690
691	attach_to_maps prio => -10000, package => cf::mapsupport::;	728	attach_to_maps prio => -10000, package => cf::mapsupport::;
692		729
693	#############################################################################	730	#############################################################################
694	# load/save perl data associated with player->ob objects	731	# load/save perl data associated with player->ob objects
695		732
696	sub all_objects(@) {	733	sub all_objects(@) {
697	@_, map all_objects ($_->inv), @_	734	@_, map all_objects ($_->inv), @_
698	}	735	}
699		736
		737	# TODO: compatibility cruft, remove when no longer needed
700	attach_to_players	738	attach_to_players
701	on_load => sub {	739	on_load => sub {
702	my ($pl, $path) = @_;	740	my ($pl, $path) = @_;
703		741
704	for my $o (all_objects $pl->ob) {	742	for my $o (all_objects $pl->ob) {
…		…
710	}	748	}
711	},	749	},
712	;	750	;
713		751
714	#############################################################################	752	#############################################################################
715	# core extensions - in perl	753
		754	=head2 CORE EXTENSIONS
		755
		756	Functions and methods that extend core crossfire objects.
		757
		758	=over 4
716		759
717	=item cf::player::exists $login	760	=item cf::player::exists $login
718		761
719	Returns true when the given account exists.	762	Returns true when the given account exists.
720		763
…		…
760	$msg{msgid} = $id;	803	$msg{msgid} = $id;
761		804
762	$self->send ("ext " . to_json \%msg);	805	$self->send ("ext " . to_json \%msg);
763	}	806	}
764		807
		808	=back
		809
		810	=cut
		811
765	#############################################################################	812	#############################################################################
766	# map scripting support	813
		814	=head2 SAFE SCRIPTING
		815
		816	Functions that provide a safe environment to compile and execute
		817	snippets of perl code without them endangering the safety of the server
		818	itself. Looping constructs, I/O operators and other built-in functionality
		819	is not available in the safe scripting environment, and the number of
		820	functions and methods that cna be called is greatly reduced.
		821
		822	=cut
767		823
768	our $safe = new Safe "safe";	824	our $safe = new Safe "safe";
769	our $safe_hole = new Safe::Hole;	825	our $safe_hole = new Safe::Hole;
770		826
771	$SIG{FPE} = 'IGNORE';	827	$SIG{FPE} = 'IGNORE';
772		828
773	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	829	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
774		830
775	# here we export the classes and methods available to script code	831	# here we export the classes and methods available to script code
		832
		833	=pod
		834
		835	The following fucntions and emthods are available within a safe environment:
		836
		837	cf::object contr pay_amount pay_player
		838	cf::object::player player
		839	cf::player peaceful
		840
		841	=cut
776		842
777	for (	843	for (
778	["cf::object" => qw(contr pay_amount pay_player)],	844	["cf::object" => qw(contr pay_amount pay_player)],
779	["cf::object::player" => qw(player)],	845	["cf::object::player" => qw(player)],
780	["cf::player" => qw(peaceful)],	846	["cf::player" => qw(peaceful)],
…		…
783	my ($pkg, @funs) = @$_;	849	my ($pkg, @funs) = @$_;
784	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	850	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
785	for @funs;	851	for @funs;
786	}	852	}
787		853
		854	=over 4
		855
		856	=item @retval = safe_eval $code, [var => value, ...]
		857
		858	Compiled and executes the given perl code snippet. additional var/value
		859	pairs result in temporary local (my) scalar variables of the given name
		860	that are available in the code snippet. Example:
		861
		862	my $five = safe_eval '$first + $second', first => 1, second => 4;
		863
		864	=cut
		865
788	sub safe_eval($;@) {	866	sub safe_eval($;@) {
789	my ($code, %vars) = @_;	867	my ($code, %vars) = @_;
790		868
791	my $qcode = $code;	869	my $qcode = $code;
792	$qcode =~ s/"/‟/g; # not allowed in #line filenames	870	$qcode =~ s/"/‟/g; # not allowed in #line filenames
…		…
814	}	892	}
815		893
816	wantarray ? @res : $res[0]	894	wantarray ? @res : $res[0]
817	}	895	}
818		896
		897	=item cf::register_script_function $function => $cb
		898
		899	Register a function that can be called from within map/npc scripts. The
		900	function should be reasonably secure and should be put into a package name
		901	like the extension.
		902
		903	Example: register a function that gets called whenever a map script calls
		904	C<rent::overview>, as used by the C<rent> extension.
		905
		906	cf::register_script_function "rent::overview" => sub {
		907	...
		908	};
		909
		910	=cut
		911
819	sub register_script_function {	912	sub register_script_function {
820	my ($fun, $cb) = @_;	913	my ($fun, $cb) = @_;
821		914
822	no strict 'refs';	915	no strict 'refs';
823	*{"safe::$fun"} = $safe_hole->wrap ($cb);	916	*{"safe::$fun"} = $safe_hole->wrap ($cb);
824	}	917	}
825		918
		919	=back
		920
		921	=cut
		922
		923	#############################################################################
		924
		925	=head2 EXTENSION DATABASE SUPPORT
		926
		927	Crossfire maintains a very simple database for extension use. It can
		928	currently store anything that can be serialised using Storable, which
		929	excludes objects.
		930
		931	The parameter C<$family> should best start with the name of the extension
		932	using it, it should be unique.
		933
		934	=over 4
		935
		936	=item $hashref = cf::db_get $family
		937
		938	Return a hashref for use by the extension C<$family>, which can be
		939	modified. After modifications, you have to call C<cf::db_dirty> or
		940	C<cf::db_sync>.
		941
		942	=item $value = cf::db_get $family => $key
		943
		944	Returns a single value from the database
		945
		946	=item cf::db_put $family => $hashref
		947
		948	Stores the given family hashref into the database. Updates are delayed, if
		949	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		950
		951	=item cf::db_put $family => $key => $value
		952
		953	Stores the given C<$value> in the family hash. Updates are delayed, if you
		954	want the data to be synced to disk immediately, use C<cf::db_sync>.
		955
		956	=item cf::db_dirty
		957
		958	Marks the database as dirty, to be updated at a later time.
		959
		960	=item cf::db_sync
		961
		962	Immediately write the database to disk I<if it is dirty>.
		963
		964	=cut
		965
		966	{
		967	my $db;
		968	my $path = cf::localdir . "/database.pst";
		969
		970	sub db_load() {
		971	warn "loading database $path\n";#d# remove later
		972	$db = stat $path ? Storable::retrieve $path : { };
		973	}
		974
		975	my $pid;
		976
		977	sub db_save() {
		978	warn "saving database $path\n";#d# remove later
		979	waitpid $pid, 0 if $pid;
		980	if (0 == ($pid = fork)) {
		981	$db->{_meta}{version} = 1;
		982	Storable::nstore $db, "$path~";
		983	rename "$path~", $path;
		984	cf::_exit 0 if defined $pid;
		985	}
		986	}
		987
		988	my $dirty;
		989
		990	sub db_sync() {
		991	db_save if $dirty;
		992	undef $dirty;
		993	}
		994
		995	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {
		996	db_sync;
		997	});
		998
		999	sub db_dirty() {
		1000	$dirty = 1;
		1001	$idle->start;
		1002	}
		1003
		1004	sub db_get($;$) {
		1005	@_ >= 2
		1006	? $db->{$_[0]}{$_[1]}
		1007	: ($db->{$_[0]} \|\|= { })
		1008	}
		1009
		1010	sub db_put($$;$) {
		1011	if (@_ >= 3) {
		1012	$db->{$_[0]}{$_[1]} = $_[2];
		1013	} else {
		1014	$db->{$_[0]} = $_[1];
		1015	}
		1016	db_dirty;
		1017	}
		1018
		1019	attach_global
		1020	prio => 10000,
		1021	on_cleanup => sub {
		1022	db_sync;
		1023	},
		1024	;
		1025	}
		1026
826	#############################################################################	1027	#############################################################################
827	# the server's main()	1028	# the server's main()
828		1029
829	sub main {	1030	sub main {
		1031	db_load;
		1032	load_extensions;
830	Event::loop;	1033	Event::loop;
831	}	1034	}
832		1035
833	#############################################################################	1036	#############################################################################
834	# initialisation	1037	# initialisation
835		1038
		1039	sub _perl_reload(&) {
		1040	my ($msg) = @_;
		1041
		1042	$msg->("reloading...");
		1043
		1044	eval {
		1045	# cancel all watchers
		1046	$_->cancel for Event::all_watchers;
		1047
		1048	# unload all extensions
		1049	for (@exts) {
		1050	$msg->("unloading <$_>");
		1051	unload_extension $_;
		1052	}
		1053
		1054	# unload all modules loaded from $LIBDIR
		1055	while (my ($k, $v) = each %INC) {
		1056	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		1057
		1058	$msg->("removing <$k>");
		1059	delete $INC{$k};
		1060
		1061	$k =~ s/\.pm$//;
		1062	$k =~ s/\//::/g;
		1063
		1064	if (my $cb = $k->can ("unload_module")) {
		1065	$cb->();
		1066	}
		1067
		1068	Symbol::delete_package $k;
		1069	}
		1070
		1071	# sync database to disk
		1072	cf::db_sync;
		1073
		1074	# get rid of safe::, as good as possible
		1075	Symbol::delete_package "safe::$_"
		1076	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
		1077
		1078	# remove register_script_function callbacks
		1079	# TODO
		1080
		1081	# unload cf.pm "a bit"
		1082	delete $INC{"cf.pm"};
		1083
		1084	# don't, removes xs symbols, too,
		1085	# and global variables created in xs
		1086	#Symbol::delete_package __PACKAGE__;
		1087
		1088	# reload cf.pm
		1089	$msg->("reloading cf.pm");
		1090	require cf;
		1091
		1092	# load database again
		1093	cf::db_load;
		1094
		1095	# load extensions
		1096	$msg->("load extensions");
		1097	cf::load_extensions;
		1098
		1099	# reattach attachments to objects
		1100	$msg->("reattach");
		1101	_global_reattach;
		1102	};
		1103	$msg->($@) if $@;
		1104
		1105	$msg->("reloaded");
		1106	};
		1107
		1108	sub perl_reload() {
		1109	_perl_reload {
		1110	warn $_[0];
		1111	print "$_[0]\n";
		1112	};
		1113	}
		1114
		1115	register_command "perl-reload", 0, sub {
		1116	my ($who, $arg) = @_;
		1117
		1118	if ($who->flag (FLAG_WIZ)) {
		1119	_perl_reload {
		1120	warn $_[0];
		1121	$who->message ($_[0]);
		1122	};
		1123	}
		1124	};
		1125
836	register "<global>", __PACKAGE__;	1126	register "<global>", __PACKAGE__;
837		1127
838	unshift @INC, $LIBDIR;	1128	unshift @INC, $LIBDIR;
839
840	load_extensions;
841		1129
842	$TICK_WATCHER = Event->timer (	1130	$TICK_WATCHER = Event->timer (
843	prio => 1,	1131	prio => 1,
844	at => $NEXT_TICK \|\| 1,	1132	at => $NEXT_TICK \|\| 1,
845	cb => sub {	1133	cb => sub {
…		…
854	$TICK_WATCHER->at ($NEXT_TICK);	1142	$TICK_WATCHER->at ($NEXT_TICK);
855	$TICK_WATCHER->start;	1143	$TICK_WATCHER->start;
856	},	1144	},
857	);	1145	);
858		1146
859	_reload_2;
860
861	1	1147	1
862		1148

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.48 by root, Sun Aug 27 15:24:22 2006 UTC vs. Revision 1.71 by root, Sun Oct 1 10:59:30 2006 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.48 by root, Sun Aug 27 15:24:22 2006 UTC vs.
Revision 1.71 by root, Sun Oct 1 10:59:30 2006 UTC