[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 1.78 by root, Tue Nov 7 00:15:27 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	}
432
433	chmod SAVE_MODE, "$filename~";
434	rename "$filename~", $filename;
435	}	526	}
436		527
437	sub object_thawer_load {	528	sub object_thawer_load {
438	my ($filename) = @_;	529	my ($filename) = @_;
439		530
		531	local $/;
		532
		533	my $av;
		534
		535	#TODO: use sysread etc.
		536	if (open my $data, "<:raw:perlio", $filename) {
		537	$data = <$data>;
440	open my $fh, "<:raw:perlio", "$filename.pst"	538	if (open my $pst, "<:raw:perlio", "$filename.pst") {
441	or return;	539	$av = eval { (Storable::thaw <$pst>)->{objs} };
		540	}
		541	return ($data, $av);
		542	}
442		543
443	eval { local $/; (Storable::thaw <$fh>)->{objs} }	544	()
444	}	545	}
445		546
446	attach_to_objects	547	attach_to_objects
447	prio => -1000000,	548	prio => -1000000,
448	on_clone => sub {	549	on_clone => sub {
…		…
594	load_extension $ext;	695	load_extension $ext;
595	1	696	1
596	} or warn "$ext not loaded: $@";	697	} or warn "$ext not loaded: $@";
597	}	698	}
598	}	699	}
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		700
673	#############################################################################	701	#############################################################################
674	# extcmd framework, basically convert ext <msg>	702	# extcmd framework, basically convert ext <msg>
675	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few	703	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
676		704
…		…
704	defined $path or return;	732	defined $path or return;
705		733
706	unlink "$path.pst";	734	unlink "$path.pst";
707	};	735	};
708		736
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::;	737	attach_to_maps prio => -10000, package => cf::mapsupport::;
730		738
731	#############################################################################	739	#############################################################################
732	# load/save perl data associated with player->ob objects	740	# load/save perl data associated with player->ob objects
733		741
734	sub all_objects(@) {	742	sub all_objects(@) {
735	@_, map all_objects ($_->inv), @_	743	@_, map all_objects ($_->inv), @_
736	}	744	}
737		745
		746	# TODO: compatibility cruft, remove when no longer needed
738	attach_to_players	747	attach_to_players
739	on_load => sub {	748	on_load => sub {
740	my ($pl, $path) = @_;	749	my ($pl, $path) = @_;
741		750
742	for my $o (all_objects $pl->ob) {	751	for my $o (all_objects $pl->ob) {
…		…
748	}	757	}
749	},	758	},
750	;	759	;
751		760
752	#############################################################################	761	#############################################################################
753	# core extensions - in perl	762
		763	=head2 CORE EXTENSIONS
		764
		765	Functions and methods that extend core crossfire objects.
		766
		767	=over 4
754		768
755	=item cf::player::exists $login	769	=item cf::player::exists $login
756		770
757	Returns true when the given account exists.	771	Returns true when the given account exists.
758		772
…		…
761	sub cf::player::exists($) {	775	sub cf::player::exists($) {
762	cf::player::find $_[0]	776	cf::player::find $_[0]
763	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;
764	}	778	}
765		779
766	=item $player->reply ($npc, $msg[, $flags])	780	=item $object->reply ($npc, $msg[, $flags])
767		781
768	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>
769	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
770	dialogue with the given NPC character.	784	dialogue with the given NPC character.
771		785
…		…
798	$msg{msgid} = $id;	812	$msg{msgid} = $id;
799		813
800	$self->send ("ext " . to_json \%msg);	814	$self->send ("ext " . to_json \%msg);
801	}	815	}
802		816
		817	=back
		818
		819	=cut
		820
803	#############################################################################	821	#############################################################################
804	# 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
805		832
806	our $safe = new Safe "safe";	833	our $safe = new Safe "safe";
807	our $safe_hole = new Safe::Hole;	834	our $safe_hole = new Safe::Hole;
808		835
809	$SIG{FPE} = 'IGNORE';	836	$SIG{FPE} = 'IGNORE';
810		837
811	$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));
812		839
813	# 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
814		851
815	for (	852	for (
816	["cf::object" => qw(contr pay_amount pay_player)],	853	["cf::object" => qw(contr pay_amount pay_player)],
817	["cf::object::player" => qw(player)],	854	["cf::object::player" => qw(player)],
818	["cf::player" => qw(peaceful)],	855	["cf::player" => qw(peaceful)],
…		…
821	my ($pkg, @funs) = @$_;	858	my ($pkg, @funs) = @$_;
822	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	859	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
823	for @funs;	860	for @funs;
824	}	861	}
825		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
826	sub safe_eval($;@) {	875	sub safe_eval($;@) {
827	my ($code, %vars) = @_;	876	my ($code, %vars) = @_;
828		877
829	my $qcode = $code;	878	my $qcode = $code;
830	$qcode =~ s/"/‟/g; # not allowed in #line filenames	879	$qcode =~ s/"/‟/g; # not allowed in #line filenames
…		…
852	}	901	}
853		902
854	wantarray ? @res : $res[0]	903	wantarray ? @res : $res[0]
855	}	904	}
856		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
857	sub register_script_function {	921	sub register_script_function {
858	my ($fun, $cb) = @_;	922	my ($fun, $cb) = @_;
859		923
860	no strict 'refs';	924	no strict 'refs';
861	*{"safe::$fun"} = $safe_hole->wrap ($cb);	925	*{"safe::$fun"} = $safe_hole->wrap ($cb);
862	}	926	}
863		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	our $DB;
		976
		977	{
		978	my $path = cf::localdir . "/database.pst";
		979
		980	sub db_load() {
		981	warn "loading database $path\n";#d# remove later
		982	$DB = stat $path ? Storable::retrieve $path : { };
		983	}
		984
		985	my $pid;
		986
		987	sub db_save() {
		988	warn "saving database $path\n";#d# remove later
		989	waitpid $pid, 0 if $pid;
		990	if (0 == ($pid = fork)) {
		991	$DB->{_meta}{version} = 1;
		992	Storable::nstore $DB, "$path~";
		993	rename "$path~", $path;
		994	cf::_exit 0 if defined $pid;
		995	}
		996	}
		997
		998	my $dirty;
		999
		1000	sub db_sync() {
		1001	db_save if $dirty;
		1002	undef $dirty;
		1003	}
		1004
		1005	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {
		1006	db_sync;
		1007	});
		1008
		1009	sub db_dirty() {
		1010	$dirty = 1;
		1011	$idle->start;
		1012	}
		1013
		1014	sub db_get($;$) {
		1015	@_ >= 2
		1016	? $DB->{$_[0]}{$_[1]}
		1017	: ($DB->{$_[0]} \|\|= { })
		1018	}
		1019
		1020	sub db_put($$;$) {
		1021	if (@_ >= 3) {
		1022	$DB->{$_[0]}{$_[1]} = $_[2];
		1023	} else {
		1024	$DB->{$_[0]} = $_[1];
		1025	}
		1026	db_dirty;
		1027	}
		1028
		1029	attach_global
		1030	prio => 10000,
		1031	on_cleanup => sub {
		1032	db_sync;
		1033	},
		1034	;
		1035	}
		1036
864	#############################################################################	1037	#############################################################################
865	# the server's main()	1038	# the server's main()
866		1039
		1040	sub cfg_load {
		1041	open my $fh, "<:utf8", cf::confdir . "/config"
		1042	or return;
		1043
		1044	local $/;
		1045	*CFG = YAML::Syck::Load <$fh>;
		1046	}
		1047
867	sub main {	1048	sub main {
		1049	cfg_load;
		1050	db_load;
		1051	load_extensions;
868	Event::loop;	1052	Event::loop;
869	}	1053	}
870		1054
871	#############################################################################	1055	#############################################################################
872	# initialisation	1056	# initialisation
873		1057
		1058	sub _perl_reload(&) {
		1059	my ($msg) = @_;
		1060
		1061	$msg->("reloading...");
		1062
		1063	eval {
		1064	# cancel all watchers
		1065	$_->cancel for Event::all_watchers;
		1066
		1067	# unload all extensions
		1068	for (@exts) {
		1069	$msg->("unloading <$_>");
		1070	unload_extension $_;
		1071	}
		1072
		1073	# unload all modules loaded from $LIBDIR
		1074	while (my ($k, $v) = each %INC) {
		1075	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		1076
		1077	$msg->("removing <$k>");
		1078	delete $INC{$k};
		1079
		1080	$k =~ s/\.pm$//;
		1081	$k =~ s/\//::/g;
		1082
		1083	if (my $cb = $k->can ("unload_module")) {
		1084	$cb->();
		1085	}
		1086
		1087	Symbol::delete_package $k;
		1088	}
		1089
		1090	# sync database to disk
		1091	cf::db_sync;
		1092
		1093	# get rid of safe::, as good as possible
		1094	Symbol::delete_package "safe::$_"
		1095	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
		1096
		1097	# remove register_script_function callbacks
		1098	# TODO
		1099
		1100	# unload cf.pm "a bit"
		1101	delete $INC{"cf.pm"};
		1102
		1103	# don't, removes xs symbols, too,
		1104	# and global variables created in xs
		1105	#Symbol::delete_package __PACKAGE__;
		1106
		1107	# reload cf.pm
		1108	$msg->("reloading cf.pm");
		1109	require cf;
		1110
		1111	# load config and database again
		1112	cf::cfg_load;
		1113	cf::db_load;
		1114
		1115	# load extensions
		1116	$msg->("load extensions");
		1117	cf::load_extensions;
		1118
		1119	# reattach attachments to objects
		1120	$msg->("reattach");
		1121	_global_reattach;
		1122	};
		1123	$msg->($@) if $@;
		1124
		1125	$msg->("reloaded");
		1126	};
		1127
		1128	sub perl_reload() {
		1129	_perl_reload {
		1130	warn $_[0];
		1131	print "$_[0]\n";
		1132	};
		1133	}
		1134
		1135	register_command "perl-reload", 0, sub {
		1136	my ($who, $arg) = @_;
		1137
		1138	if ($who->flag (FLAG_WIZ)) {
		1139	_perl_reload {
		1140	warn $_[0];
		1141	$who->message ($_[0]);
		1142	};
		1143	}
		1144	};
		1145
874	register "<global>", __PACKAGE__;	1146	register "<global>", __PACKAGE__;
875		1147
876	unshift @INC, $LIBDIR;	1148	unshift @INC, $LIBDIR;
877		1149
878	load_extensions;
879
880	$TICK_WATCHER = Event->timer (	1150	$TICK_WATCHER = Event->timer (
881	prio => 1,	1151	prio => 1,
		1152	async => 1,
882	at => $NEXT_TICK \|\| 1,	1153	at => $NEXT_TICK \|\| 1,
883	cb => sub {	1154	cb => sub {
884	cf::server_tick; # one server iteration	1155	cf::server_tick; # one server iteration
885		1156
886	my $NOW = Event::time;	1157	my $NOW = Event::time;
887	$NEXT_TICK += $TICK;	1158	$NEXT_TICK += $TICK;
888		1159
889	# if we are delayed by four ticks, skip them all	1160	# if we are delayed by four ticks or more, skip them all
890	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1161	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
891		1162
892	$TICK_WATCHER->at ($NEXT_TICK);	1163	$TICK_WATCHER->at ($NEXT_TICK);
893	$TICK_WATCHER->start;	1164	$TICK_WATCHER->start;
894	},	1165	},
895	);	1166	);
896		1167
897	_reload_2;	1168	eval { IO::AIO::max_poll_time $TICK * 0.2 }; #d# remove eval after restart
		1169
		1170	Event->io (fd => IO::AIO::poll_fileno,
		1171	poll => 'r',
		1172	prio => 5,
		1173	cb => \&IO::AIO::poll_cb);
898		1174
899	1	1175	1
900		1176

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.53 by root, Tue Aug 29 13:11:58 2006 UTC vs. Revision 1.78 by root, Tue Nov 7 00:15:27 2006 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.53 by root, Tue Aug 29 13:11:58 2006 UTC vs.
Revision 1.78 by root, Tue Nov 7 00:15:27 2006 UTC