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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.53 by root, Tue Aug 29 13:11:58 2006 UTC vs.
Revision 1.81 by root, Tue Nov 7 17:38:22 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 cf::living)) {	76	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {
…		…
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
		121	=back
		122
		123	=cut
		124
107	#############################################################################	125	#############################################################################
108	# "new" plug-in system	126
		127	=head2 EVENTS AND OBJECT ATTACHMENTS
		128
		129	=over 4
109		130
110	=item $object->attach ($attachment, key => $value...)	131	=item $object->attach ($attachment, key => $value...)
111		132
112	=item $object->detach ($attachment)	133	=item $object->detach ($attachment)
113		134
…		…
122	=item $map->attach ($attachment, key => $value...)	143	=item $map->attach ($attachment, key => $value...)
123		144
124	=item $map->detach ($attachment)	145	=item $map->detach ($attachment)
125		146
126	Attach/detach 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.
127		156
128	=item cf::attach_global ...	157	=item cf::attach_global ...
129		158
130	Attach handlers for global events.	159	Attach handlers for global events.
131		160
…		…
181	Attach handlers to all maps.	210	Attach handlers to all maps.
182		211
183	=item cf:register_attachment $name, ...	212	=item cf:register_attachment $name, ...
184		213
185	Register an attachment by name through which objects can refer to this	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
186	attachment.	220	attachment.
187		221
188	=item cf:register_map_attachment $name, ...	222	=item cf:register_map_attachment $name, ...
189		223
190	Register an attachment by name through which maps can refer to this	224	Register an attachment by name through which maps can refer to this
…		…
261	}	295	}
262		296
263	sub _attach_attachment {	297	sub _attach_attachment {
264	my ($obj, $name, %arg) = @_;	298	my ($obj, $name, %arg) = @_;
265		299
		300	return if exists $obj->{_attachment}{$name};
		301
266	my $res;	302	my $res;
267		303
268	if (my $attach = $attachment{$name}) {	304	if (my $attach = $attachment{$name}) {
269	my $registry = $obj->registry;	305	my $registry = $obj->registry;
270		306
…		…
282		318
283	$res->{attachment} = $name;	319	$res->{attachment} = $name;
284	$res	320	$res
285	}	321	}
286		322
287	sub cf::object::attach {	323	*cf::object::attach =
		324	*cf::player::attach =
		325	*cf::map::attach = sub {
288	my ($obj, $name, %arg) = @_;	326	my ($obj, $name, %arg) = @_;
289		327
290	_attach_attachment $obj, $name, %arg;	328	_attach_attachment $obj, $name, %arg;
291	}	329	};
292		330
293	sub cf::player::attach {	331	# all those should be optimised
294	my ($obj, $name, %arg) = @_;
295
296	_attach_attachment $obj, $name, %arg;
297	}
298
299	sub cf::map::attach {
300	my ($obj, $name, %arg) = @_;
301
302	_attach_attachment $obj, $name, %arg;
303	}
304
305	sub cf::object::detach {	332	*cf::object::detach =
		333	*cf::player::detach =
		334	*cf::map::detach = sub {
306	my ($obj, $name) = @_;	335	my ($obj, $name) = @_;
307	die;#d#	336
308	}	337	delete $obj->{_attachment}{$name};
309	sub cf::player::detach {	338	reattach ($obj);
		339	};
		340
		341	*cf::object::attached =
		342	*cf::player::attached =
		343	*cf::map::attached = sub {
310	my ($obj, $name) = @_;	344	my ($obj, $name) = @_;
311	die;#d#	345
312	}	346	exists $obj->{_attachment}{$name}
313	sub cf::map::detach {	347	};
314	my ($obj, $name) = @_;
315	die;#d#
316	}
317		348
318	sub attach_global {	349	sub attach_global {
319	_attach @CB_GLOBAL, KLASS_GLOBAL, @_	350	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
320	}	351	}
321		352
…		…
342	my $name = shift;	373	my $name = shift;
343		374
344	$attachment{$name} = [[KLASS_OBJECT, @_]];	375	$attachment{$name} = [[KLASS_OBJECT, @_]];
345	}	376	}
346		377
		378	sub register_player_attachment {
		379	my $name = shift;
		380
		381	$attachment{$name} = [[KLASS_PLAYER, @_]];
		382	}
		383
347	sub register_map_attachment {	384	sub register_map_attachment {
348	my $name = shift;	385	my $name = shift;
349		386
350	$attachment{$name} = [[KLASS_MAP, @_]];	387	$attachment{$name} = [[KLASS_MAP, @_]];
351	}	388	}
…		…
369	for (@$callbacks) {	406	for (@$callbacks) {
370	eval { &{$_->[1]} };	407	eval { &{$_->[1]} };
371		408
372	if ($@) {	409	if ($@) {
373	warn "$@";	410	warn "$@";
374	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	411	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
375	override;	412	override;
376	}	413	}
377		414
378	return 1 if $override;	415	return 1 if $override;
379	}	416	}
380		417
381	0	418	0
382	}	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, $map->valid
		446
		447	Just because you have a perl object does not mean that the corresponding
		448	C-level object still exists. If you try to access an object that has no
		449	valid C counterpart anymore you get an exception at runtime. This method
		450	can be used to test for existence of the C object part without causing an
		451	exception.
		452
		453	=back
		454
		455	=cut
		456
		457	*cf::object::valid =
		458	*cf::player::valid =
		459	*cf::map::valid = \&cf::_valid;
383		460
384	#############################################################################	461	#############################################################################
385	# object support	462	# object support
386		463
387	sub instantiate {	464	sub instantiate {
…		…
416	}	493	}
417	}	494	}
418	}	495	}
419		496
420	sub object_freezer_save {	497	sub object_freezer_save {
421	my ($filename, $objs) = @_;	498	my ($filename, $rdata, $objs) = @_;
422		499
423	if (@$objs) {	500	if (length $$rdata) {
		501	warn sprintf "saving %s (%d,%d)\n",
		502	$filename, length $$rdata, scalar @$objs;
		503
424	open my $fh, ">:raw", "$filename.pst~";	504	if (open my $fh, ">:raw", "$filename~") {
		505	chmod SAVE_MODE, $fh;
		506	syswrite $fh, $$rdata;
		507	close $fh;
		508
		509	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
		510	chmod SAVE_MODE, $fh;
425	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	511	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
426	close $fh;	512	close $fh;
427	chmod SAVE_MODE, "$filename.pst~";
428	rename "$filename.pst~", "$filename.pst";	513	rename "$filename.pst~", "$filename.pst";
		514	} else {
		515	unlink "$filename.pst";
		516	}
		517
		518	rename "$filename~", $filename;
		519	} else {
		520	warn "FATAL: $filename~: $!\n";
		521	}
429	} else {	522	} else {
		523	unlink $filename;
430	unlink "$filename.pst";	524	unlink "$filename.pst";
431	}	525	}
		526	}
432		527
433	chmod SAVE_MODE, "$filename~";	528	sub object_freezer_as_string {
434	rename "$filename~", $filename;	529	my ($rdata, $objs) = @_;
		530
		531	use Data::Dumper;
		532
		533	$$rdata . Dumper $objs
435	}	534	}
436		535
437	sub object_thawer_load {	536	sub object_thawer_load {
438	my ($filename) = @_;	537	my ($filename) = @_;
439		538
		539	local $/;
		540
		541	my $av;
		542
		543	#TODO: use sysread etc.
		544	if (open my $data, "<:raw:perlio", $filename) {
		545	$data = <$data>;
440	open my $fh, "<:raw:perlio", "$filename.pst"	546	if (open my $pst, "<:raw:perlio", "$filename.pst") {
441	or return;	547	$av = eval { (Storable::thaw <$pst>)->{objs} };
		548	}
		549	return ($data, $av);
		550	}
442		551
443	eval { local $/; (Storable::thaw <$fh>)->{objs} }	552	()
444	}	553	}
445		554
446	attach_to_objects	555	attach_to_objects
447	prio => -1000000,	556	prio => -1000000,
448	on_clone => sub {	557	on_clone => sub {
…		…
594	load_extension $ext;	703	load_extension $ext;
595	1	704	1
596	} or warn "$ext not loaded: $@";	705	} or warn "$ext not loaded: $@";
597	}	706	}
598	}	707	}
599
600	sub _perl_reload(&) {
601	my ($msg) = @_;
602
603	$msg->("reloading...");
604
605	eval {
606	# 1. cancel all watchers
607	$_->cancel for Event::all_watchers;
608
609	# 2. unload all extensions
610	for (@exts) {
611	$msg->("unloading <$_>");
612	unload_extension $_;
613	}
614
615	# 3. unload all modules loaded from $LIBDIR
616	while (my ($k, $v) = each %INC) {
617	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
618
619	$msg->("removing <$k>");
620	delete $INC{$k};
621
622	$k =~ s/\.pm$//;
623	$k =~ s/\//::/g;
624
625	if (my $cb = $k->can ("unload_module")) {
626	$cb->();
627	}
628
629	Symbol::delete_package $k;
630	}
631
632	# 4. get rid of safe::, as good as possible
633	Symbol::delete_package "safe::$_"
634	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
635
636	# 5. remove register_script_function callbacks
637	# TODO
638
639	# 6. unload cf.pm "a bit"
640	delete $INC{"cf.pm"};
641
642	# don't, removes xs symbols, too,
643	# and global variables created in xs
644	#Symbol::delete_package __PACKAGE__;
645
646	# 7. reload cf.pm
647	$msg->("reloading cf.pm");
648	require cf;
649	};
650	$msg->($@) if $@;
651
652	$msg->("reloaded");
653	};
654
655	sub perl_reload() {
656	_perl_reload {
657	warn $_[0];
658	print "$_[0]\n";
659	};
660	}
661
662	register_command "perl-reload", 0, sub {
663	my ($who, $arg) = @_;
664
665	if ($who->flag (FLAG_WIZ)) {
666	_perl_reload {
667	warn $_[0];
668	$who->message ($_[0]);
669	};
670	}
671	};
672		708
673	#############################################################################	709	#############################################################################
674	# extcmd framework, basically convert ext <msg>	710	# extcmd framework, basically convert ext <msg>
675	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few	711	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
676		712
…		…
704	defined $path or return;	740	defined $path or return;
705		741
706	unlink "$path.pst";	742	unlink "$path.pst";
707	};	743	};
708		744
709	# old style persistent data, TODO: remove #d#
710	*cf::mapsupport::on_swapin =
711	*cf::mapsupport::on_load = sub {
712	my ($map) = @_;
713
714	my $path = $map->tmpname;
715	$path = $map->path unless defined $path;
716
717	open my $fh, "<:raw", "$path.cfperl"
718	or return; # no perl data
719
720	my $data = Storable::thaw do { local $/; <$fh> };
721
722	$data->{version} <= 1
723	or return; # too new
724
725	$map->_set_obs ($data->{obs});
726	$map->invoke (EVENT_MAP_UPGRADE);
727	};
728
729	attach_to_maps prio => -10000, package => cf::mapsupport::;	745	attach_to_maps prio => -10000, package => cf::mapsupport::;
730		746
731	#############################################################################	747	#############################################################################
732	# load/save perl data associated with player->ob objects	748	# load/save perl data associated with player->ob objects
733		749
734	sub all_objects(@) {	750	sub all_objects(@) {
735	@_, map all_objects ($_->inv), @_	751	@_, map all_objects ($_->inv), @_
736	}	752	}
737		753
		754	# TODO: compatibility cruft, remove when no longer needed
738	attach_to_players	755	attach_to_players
739	on_load => sub {	756	on_load => sub {
740	my ($pl, $path) = @_;	757	my ($pl, $path) = @_;
741		758
742	for my $o (all_objects $pl->ob) {	759	for my $o (all_objects $pl->ob) {
…		…
748	}	765	}
749	},	766	},
750	;	767	;
751		768
752	#############################################################################	769	#############################################################################
753	# core extensions - in perl	770
		771	=head2 CORE EXTENSIONS
		772
		773	Functions and methods that extend core crossfire objects.
		774
		775	=over 4
754		776
755	=item cf::player::exists $login	777	=item cf::player::exists $login
756		778
757	Returns true when the given account exists.	779	Returns true when the given account exists.
758		780
…		…
761	sub cf::player::exists($) {	783	sub cf::player::exists($) {
762	cf::player::find $_[0]	784	cf::player::find $_[0]
763	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	785	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
764	}	786	}
765		787
766	=item $player->reply ($npc, $msg[, $flags])	788	=item $player_object->reply ($npc, $msg[, $flags])
767		789
768	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	790	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
769	can be C<undef>. Does the right thing when the player is currently in a	791	can be C<undef>. Does the right thing when the player is currently in a
770	dialogue with the given NPC character.	792	dialogue with the given NPC character.
771		793
…		…
798	$msg{msgid} = $id;	820	$msg{msgid} = $id;
799		821
800	$self->send ("ext " . to_json \%msg);	822	$self->send ("ext " . to_json \%msg);
801	}	823	}
802		824
		825	=item $player_object->may ("access")
		826
		827	Returns wether the given player is authorized to access resource "access"
		828	(e.g. "command_wizcast").
		829
		830	=cut
		831
		832	sub cf::object::player::may {
		833	my ($self, $access) = @_;
		834
		835	$self->flag (cf::FLAG_WIZ) \|\|
		836	(ref $cf::CFG{"may_$access"}
		837	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		838	: $cf::CFG{"may_$access"})
		839	}
		840
		841	=cut
		842
803	#############################################################################	843	#############################################################################
804	# map scripting support	844
		845	=head2 SAFE SCRIPTING
		846
		847	Functions that provide a safe environment to compile and execute
		848	snippets of perl code without them endangering the safety of the server
		849	itself. Looping constructs, I/O operators and other built-in functionality
		850	is not available in the safe scripting environment, and the number of
		851	functions and methods that can be called is greatly reduced.
		852
		853	=cut
805		854
806	our $safe = new Safe "safe";	855	our $safe = new Safe "safe";
807	our $safe_hole = new Safe::Hole;	856	our $safe_hole = new Safe::Hole;
808		857
809	$SIG{FPE} = 'IGNORE';	858	$SIG{FPE} = 'IGNORE';
810		859
811	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	860	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
812		861
813	# here we export the classes and methods available to script code	862	# here we export the classes and methods available to script code
		863
		864	=pod
		865
		866	The following fucntions and emthods are available within a safe environment:
		867
		868	cf::object contr pay_amount pay_player
		869	cf::object::player player
		870	cf::player peaceful
		871
		872	=cut
814		873
815	for (	874	for (
816	["cf::object" => qw(contr pay_amount pay_player)],	875	["cf::object" => qw(contr pay_amount pay_player)],
817	["cf::object::player" => qw(player)],	876	["cf::object::player" => qw(player)],
818	["cf::player" => qw(peaceful)],	877	["cf::player" => qw(peaceful)],
…		…
821	my ($pkg, @funs) = @$_;	880	my ($pkg, @funs) = @$_;
822	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	881	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
823	for @funs;	882	for @funs;
824	}	883	}
825		884
		885	=over 4
		886
		887	=item @retval = safe_eval $code, [var => value, ...]
		888
		889	Compiled and executes the given perl code snippet. additional var/value
		890	pairs result in temporary local (my) scalar variables of the given name
		891	that are available in the code snippet. Example:
		892
		893	my $five = safe_eval '$first + $second', first => 1, second => 4;
		894
		895	=cut
		896
826	sub safe_eval($;@) {	897	sub safe_eval($;@) {
827	my ($code, %vars) = @_;	898	my ($code, %vars) = @_;
828		899
829	my $qcode = $code;	900	my $qcode = $code;
830	$qcode =~ s/"/‟/g; # not allowed in #line filenames	901	$qcode =~ s/"/‟/g; # not allowed in #line filenames
…		…
852	}	923	}
853		924
854	wantarray ? @res : $res[0]	925	wantarray ? @res : $res[0]
855	}	926	}
856		927
		928	=item cf::register_script_function $function => $cb
		929
		930	Register a function that can be called from within map/npc scripts. The
		931	function should be reasonably secure and should be put into a package name
		932	like the extension.
		933
		934	Example: register a function that gets called whenever a map script calls
		935	C<rent::overview>, as used by the C<rent> extension.
		936
		937	cf::register_script_function "rent::overview" => sub {
		938	...
		939	};
		940
		941	=cut
		942
857	sub register_script_function {	943	sub register_script_function {
858	my ($fun, $cb) = @_;	944	my ($fun, $cb) = @_;
859		945
860	no strict 'refs';	946	no strict 'refs';
861	*{"safe::$fun"} = $safe_hole->wrap ($cb);	947	*{"safe::$fun"} = $safe_hole->wrap ($cb);
862	}	948	}
863		949
		950	=back
		951
		952	=cut
		953
		954	#############################################################################
		955
		956	=head2 EXTENSION DATABASE SUPPORT
		957
		958	Crossfire maintains a very simple database for extension use. It can
		959	currently store anything that can be serialised using Storable, which
		960	excludes objects.
		961
		962	The parameter C<$family> should best start with the name of the extension
		963	using it, it should be unique.
		964
		965	=over 4
		966
		967	=item $hashref = cf::db_get $family
		968
		969	Return a hashref for use by the extension C<$family>, which can be
		970	modified. After modifications, you have to call C<cf::db_dirty> or
		971	C<cf::db_sync>.
		972
		973	=item $value = cf::db_get $family => $key
		974
		975	Returns a single value from the database
		976
		977	=item cf::db_put $family => $hashref
		978
		979	Stores the given family hashref into the database. Updates are delayed, if
		980	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		981
		982	=item cf::db_put $family => $key => $value
		983
		984	Stores the given C<$value> in the family hash. Updates are delayed, if you
		985	want the data to be synced to disk immediately, use C<cf::db_sync>.
		986
		987	=item cf::db_dirty
		988
		989	Marks the database as dirty, to be updated at a later time.
		990
		991	=item cf::db_sync
		992
		993	Immediately write the database to disk I<if it is dirty>.
		994
		995	=cut
		996
		997	our $DB;
		998
		999	{
		1000	my $path = cf::localdir . "/database.pst";
		1001
		1002	sub db_load() {
		1003	warn "loading database $path\n";#d# remove later
		1004	$DB = stat $path ? Storable::retrieve $path : { };
		1005	}
		1006
		1007	my $pid;
		1008
		1009	sub db_save() {
		1010	warn "saving database $path\n";#d# remove later
		1011	waitpid $pid, 0 if $pid;
		1012	if (0 == ($pid = fork)) {
		1013	$DB->{_meta}{version} = 1;
		1014	Storable::nstore $DB, "$path~";
		1015	rename "$path~", $path;
		1016	cf::_exit 0 if defined $pid;
		1017	}
		1018	}
		1019
		1020	my $dirty;
		1021
		1022	sub db_sync() {
		1023	db_save if $dirty;
		1024	undef $dirty;
		1025	}
		1026
		1027	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {
		1028	db_sync;
		1029	});
		1030
		1031	sub db_dirty() {
		1032	$dirty = 1;
		1033	$idle->start;
		1034	}
		1035
		1036	sub db_get($;$) {
		1037	@_ >= 2
		1038	? $DB->{$_[0]}{$_[1]}
		1039	: ($DB->{$_[0]} \|\|= { })
		1040	}
		1041
		1042	sub db_put($$;$) {
		1043	if (@_ >= 3) {
		1044	$DB->{$_[0]}{$_[1]} = $_[2];
		1045	} else {
		1046	$DB->{$_[0]} = $_[1];
		1047	}
		1048	db_dirty;
		1049	}
		1050
		1051	attach_global
		1052	prio => 10000,
		1053	on_cleanup => sub {
		1054	db_sync;
		1055	},
		1056	;
		1057	}
		1058
864	#############################################################################	1059	#############################################################################
865	# the server's main()	1060	# the server's main()
866		1061
		1062	sub cfg_load {
		1063	open my $fh, "<:utf8", cf::confdir . "/config"
		1064	or return;
		1065
		1066	local $/;
		1067	*CFG = YAML::Syck::Load <$fh>;
		1068	}
		1069
867	sub main {	1070	sub main {
		1071	cfg_load;
		1072	db_load;
		1073	load_extensions;
868	Event::loop;	1074	Event::loop;
869	}	1075	}
870		1076
871	#############################################################################	1077	#############################################################################
872	# initialisation	1078	# initialisation
873		1079
		1080	sub _perl_reload(&) {
		1081	my ($msg) = @_;
		1082
		1083	$msg->("reloading...");
		1084
		1085	eval {
		1086	# cancel all watchers
		1087	$_->cancel for Event::all_watchers;
		1088
		1089	# unload all extensions
		1090	for (@exts) {
		1091	$msg->("unloading <$_>");
		1092	unload_extension $_;
		1093	}
		1094
		1095	# unload all modules loaded from $LIBDIR
		1096	while (my ($k, $v) = each %INC) {
		1097	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		1098
		1099	$msg->("removing <$k>");
		1100	delete $INC{$k};
		1101
		1102	$k =~ s/\.pm$//;
		1103	$k =~ s/\//::/g;
		1104
		1105	if (my $cb = $k->can ("unload_module")) {
		1106	$cb->();
		1107	}
		1108
		1109	Symbol::delete_package $k;
		1110	}
		1111
		1112	# sync database to disk
		1113	cf::db_sync;
		1114
		1115	# get rid of safe::, as good as possible
		1116	Symbol::delete_package "safe::$_"
		1117	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
		1118
		1119	# remove register_script_function callbacks
		1120	# TODO
		1121
		1122	# unload cf.pm "a bit"
		1123	delete $INC{"cf.pm"};
		1124
		1125	# don't, removes xs symbols, too,
		1126	# and global variables created in xs
		1127	#Symbol::delete_package __PACKAGE__;
		1128
		1129	# reload cf.pm
		1130	$msg->("reloading cf.pm");
		1131	require cf;
		1132
		1133	# load config and database again
		1134	cf::cfg_load;
		1135	cf::db_load;
		1136
		1137	# load extensions
		1138	$msg->("load extensions");
		1139	cf::load_extensions;
		1140
		1141	# reattach attachments to objects
		1142	$msg->("reattach");
		1143	_global_reattach;
		1144	};
		1145	$msg->($@) if $@;
		1146
		1147	$msg->("reloaded");
		1148	};
		1149
		1150	sub perl_reload() {
		1151	_perl_reload {
		1152	warn $_[0];
		1153	print "$_[0]\n";
		1154	};
		1155	}
		1156
		1157	register_command "perl-reload", 0, sub {
		1158	my ($who, $arg) = @_;
		1159
		1160	if ($who->flag (FLAG_WIZ)) {
		1161	_perl_reload {
		1162	warn $_[0];
		1163	$who->message ($_[0]);
		1164	};
		1165	}
		1166	};
		1167
874	register "<global>", __PACKAGE__;	1168	register "<global>", __PACKAGE__;
875		1169
876	unshift @INC, $LIBDIR;	1170	unshift @INC, $LIBDIR;
877		1171
878	load_extensions;
879
880	$TICK_WATCHER = Event->timer (	1172	$TICK_WATCHER = Event->timer (
881	prio => 1,	1173	prio => 1,
		1174	async => 1,
882	at => $NEXT_TICK \|\| 1,	1175	at => $NEXT_TICK \|\| 1,
883	cb => sub {	1176	cb => sub {
884	cf::server_tick; # one server iteration	1177	cf::server_tick; # one server iteration
885		1178
886	my $NOW = Event::time;	1179	my $NOW = Event::time;
887	$NEXT_TICK += $TICK;	1180	$NEXT_TICK += $TICK;
888		1181
889	# if we are delayed by four ticks, skip them all	1182	# if we are delayed by four ticks or more, skip them all
890	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1183	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
891		1184
892	$TICK_WATCHER->at ($NEXT_TICK);	1185	$TICK_WATCHER->at ($NEXT_TICK);
893	$TICK_WATCHER->start;	1186	$TICK_WATCHER->start;
894	},	1187	},
895	);	1188	);
896		1189
897	_reload_2;	1190	IO::AIO::max_poll_time $TICK * 0.2;
		1191
		1192	Event->io (fd => IO::AIO::poll_fileno,
		1193	poll => 'r',
		1194	prio => 5,
		1195	cb => \&IO::AIO::poll_cb);
898		1196
899	1	1197	1
900		1198

Diff Legend

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

Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.53 by root, Tue Aug 29 13:11:58 2006 UTC vs. Revision 1.81 by root, Tue Nov 7 17:38:22 2006 UTC

Diff Legend

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.53 by root, Tue Aug 29 13:11:58 2006 UTC vs.
Revision 1.81 by root, Tue Nov 7 17:38:22 2006 UTC