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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.54 by root, Tue Aug 29 14:49:28 2006 UTC vs.
Revision 1.77 by root, Sun Nov 5 11:13:01 2006 UTC

…		…
5	use Storable;	5	use Storable;
6	use Opcode;	6	use Opcode;
7	use Safe;	7	use Safe;
8	use Safe::Hole;	8	use Safe::Hole;
9		9
		10	use IO::AIO ();
		11	use YAML::Syck ();
10	use Time::HiRes;	12	use Time::HiRes;
11	use Event;	13	use Event;
12	$Event::Eval = 1; # no idea why this is required, but it is	14	$Event::Eval = 1; # no idea why this is required, but it is
13		15
		16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		17	$YAML::Syck::ImplicitUnicode = 1;
		18
14	use strict;	19	use strict;
15		20
16	_reload_1;	21	_init_vars;
17		22
18	our %COMMAND = ();	23	our %COMMAND = ();
19	our @EVENT;	24	our @EVENT;
20	our %PROP_TYPE;
21	our %PROP_IDX;
22	our $LIBDIR = maps_directory "perl";	25	our $LIBDIR = maps_directory "perl";
23		26
24	our $TICK = MAX_TIME * 1e-6;	27	our $TICK = MAX_TIME * 1e-6;
25	our $TICK_WATCHER;	28	our $TICK_WATCHER;
26	our $NEXT_TICK;	29	our $NEXT_TICK;
		30
		31	our %CFG;
		32
		33	our $uptime;
		34
		35	$uptime \|\|= time;
		36
		37	#############################################################################
		38
		39	=head2 GLOBAL VARIABLES
		40
		41	=over 4
		42
		43	=item $cf::LIBDIR
		44
		45	The perl library directory, where extensions and cf-specific modules can
		46	be found. It will be added to C<@INC> automatically.
		47
		48	=item $cf::TICK
		49
		50	The interval between server ticks, in seconds.
		51
		52	=item %cf::CFG
		53
		54	Configuration for the server, loaded from C</etc/crossfire/config>, or
		55	from wherever your confdir points to.
		56
		57	=back
		58
		59	=cut
27		60
28	BEGIN {	61	BEGIN {
29	*CORE::GLOBAL::warn = sub {	62	*CORE::GLOBAL::warn = sub {
30	my $msg = join "", @_;	63	my $msg = join "", @_;
31	$msg .= "\n"	64	$msg .= "\n"
…		…
34	print STDERR "cfperl: $msg";	67	print STDERR "cfperl: $msg";
35	LOG llevError, "cfperl: $msg";	68	LOG llevError, "cfperl: $msg";
36	};	69	};
37	}	70	}
38		71
39	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
40
41	# generate property mutators
42	sub prop_gen {
43	my ($prefix, $class) = @_;
44
45	no strict 'refs';
46
47	for my $prop (keys %PROP_TYPE) {
48	$prop =~ /^\Q$prefix\E_(.*$)/ or next;
49	my $sub = lc $1;
50
51	my $type = $PROP_TYPE{$prop};
52	my $idx = $PROP_IDX {$prop};
53
54	{"$class\::get_$sub"} = {"$class\::$sub"} = sub {
55	$_[0]->get_property ($type, $idx)
56	};
57
58	*{"$class\::set_$sub"} = sub {
59	$_[0]->set_property ($type, $idx, $_[1]);
60	} unless $ignore_set{$prop};
61	}
62	}
63
64	# auto-generate most of the API
65
66	prop_gen OBJECT_PROP => "cf::object";
67	# CFAPI_OBJECT_ANIMATION?
68	prop_gen PLAYER_PROP => "cf::object::player";
69
70	prop_gen MAP_PROP => "cf::map";
71	prop_gen ARCH_PROP => "cf::arch";
72
73	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	72	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74		73
75	# we bless all objects into (empty) derived classes to force a method lookup	74	# we bless all objects into (empty) derived classes to force a method lookup
76	# within the Safe compartment.	75	# within the Safe compartment.
77	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch 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 = $obj->registry;
270		306
…		…
288	*cf::player::attach =	324	*cf::player::attach =
289	*cf::map::attach = sub {	325	*cf::map::attach = sub {
290	my ($obj, $name, %arg) = @_;	326	my ($obj, $name, %arg) = @_;
291		327
292	_attach_attachment $obj, $name, %arg;	328	_attach_attachment $obj, $name, %arg;
293	}	329	};
294		330
295	# all those should be optimised	331	# all those should be optimised
296	*cf::object::detach =	332	*cf::object::detach =
297	*cf::player::detach =	333	*cf::player::detach =
298	*cf::map::detach = sub {	334	*cf::map::detach = sub {
299	my ($obj, $name) = @_;	335	my ($obj, $name) = @_;
300		336
301	delete $obj->{_attachment}{$name};	337	delete $obj->{_attachment}{$name};
302	reattach $obj;	338	reattach ($obj);
		339	};
		340
		341	*cf::object::attached =
		342	*cf::player::attached =
		343	*cf::map::attached = sub {
		344	my ($obj, $name) = @_;
		345
		346	exists $obj->{_attachment}{$name}
303	};	347	};
304		348
305	sub attach_global {	349	sub attach_global {
306	_attach @CB_GLOBAL, KLASS_GLOBAL, @_	350	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
307	}	351	}
…		…
329	my $name = shift;	373	my $name = shift;
330		374
331	$attachment{$name} = [[KLASS_OBJECT, @_]];	375	$attachment{$name} = [[KLASS_OBJECT, @_]];
332	}	376	}
333		377
		378	sub register_player_attachment {
		379	my $name = shift;
		380
		381	$attachment{$name} = [[KLASS_PLAYER, @_]];
		382	}
		383
334	sub register_map_attachment {	384	sub register_map_attachment {
335	my $name = shift;	385	my $name = shift;
336		386
337	$attachment{$name} = [[KLASS_MAP, @_]];	387	$attachment{$name} = [[KLASS_MAP, @_]];
338	}	388	}
…		…
356	for (@$callbacks) {	406	for (@$callbacks) {
357	eval { &{$_->[1]} };	407	eval { &{$_->[1]} };
358		408
359	if ($@) {	409	if ($@) {
360	warn "$@";	410	warn "$@";
361	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	411	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
362	override;	412	override;
363	}	413	}
364		414
365	return 1 if $override;	415	return 1 if $override;
366	}	416	}
367		417
368	0	418	0
369	}	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, $map->valid
		446
		447	Just because you have a perl object does not mean that the corresponding
		448	C-level object still exists. If you try to access an object that has no
		449	valid C counterpart anymore you get an exception at runtime. This method
		450	can be used to test for existence of the C object part without causing an
		451	exception.
		452
		453	=back
		454
		455	=cut
		456
		457	*cf::object::valid =
		458	*cf::player::valid =
		459	*cf::map::valid = \&cf::_valid;
370		460
371	#############################################################################	461	#############################################################################
372	# object support	462	# object support
373		463
374	sub instantiate {	464	sub instantiate {
…		…
403	}	493	}
404	}	494	}
405	}	495	}
406		496
407	sub object_freezer_save {	497	sub object_freezer_save {
408	my ($filename, $objs) = @_;	498	my ($filename, $rdata, $objs) = @_;
409		499
410	if (@$objs) {	500	if (length $$rdata) {
		501	warn sprintf "saving %s (%d,%d)\n",
		502	$filename, length $$rdata, scalar @$objs;
		503
411	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;
412	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	511	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
413	close $fh;	512	close $fh;
414	chmod SAVE_MODE, "$filename.pst~";
415	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	}
416	} else {	522	} else {
		523	unlink $filename;
417	unlink "$filename.pst";	524	unlink "$filename.pst";
418	}	525	}
419
420	chmod SAVE_MODE, "$filename~";
421	rename "$filename~", $filename;
422	}	526	}
423		527
424	sub object_thawer_load {	528	sub object_thawer_load {
425	my ($filename) = @_;	529	my ($filename) = @_;
426		530
		531	local $/;
		532
		533	my $av;
		534
		535	#TODO: use sysread etc.
		536	if (open my $data, "<:raw:perlio", $filename) {
		537	$data = <$data>;
427	open my $fh, "<:raw:perlio", "$filename.pst"	538	if (open my $pst, "<:raw:perlio", "$filename.pst") {
428	or return;	539	$av = eval { (Storable::thaw <$pst>)->{objs} };
		540	}
		541	return ($data, $av);
		542	}
429		543
430	eval { local $/; (Storable::thaw <$fh>)->{objs} }	544	()
431	}	545	}
432		546
433	attach_to_objects	547	attach_to_objects
434	prio => -1000000,	548	prio => -1000000,
435	on_clone => sub {	549	on_clone => sub {
…		…
581	load_extension $ext;	695	load_extension $ext;
582	1	696	1
583	} or warn "$ext not loaded: $@";	697	} or warn "$ext not loaded: $@";
584	}	698	}
585	}	699	}
586
587	sub _perl_reload(&) {
588	my ($msg) = @_;
589
590	$msg->("reloading...");
591
592	eval {
593	# 1. cancel all watchers
594	$_->cancel for Event::all_watchers;
595
596	# 2. unload all extensions
597	for (@exts) {
598	$msg->("unloading <$_>");
599	unload_extension $_;
600	}
601
602	# 3. unload all modules loaded from $LIBDIR
603	while (my ($k, $v) = each %INC) {
604	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
605
606	$msg->("removing <$k>");
607	delete $INC{$k};
608
609	$k =~ s/\.pm$//;
610	$k =~ s/\//::/g;
611
612	if (my $cb = $k->can ("unload_module")) {
613	$cb->();
614	}
615
616	Symbol::delete_package $k;
617	}
618
619	# 4. get rid of safe::, as good as possible
620	Symbol::delete_package "safe::$_"
621	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
622
623	# 5. remove register_script_function callbacks
624	# TODO
625
626	# 6. unload cf.pm "a bit"
627	delete $INC{"cf.pm"};
628
629	# don't, removes xs symbols, too,
630	# and global variables created in xs
631	#Symbol::delete_package __PACKAGE__;
632
633	# 7. reload cf.pm
634	$msg->("reloading cf.pm");
635	require cf;
636	};
637	$msg->($@) if $@;
638
639	$msg->("reloaded");
640	};
641
642	sub perl_reload() {
643	_perl_reload {
644	warn $_[0];
645	print "$_[0]\n";
646	};
647	}
648
649	register_command "perl-reload", 0, sub {
650	my ($who, $arg) = @_;
651
652	if ($who->flag (FLAG_WIZ)) {
653	_perl_reload {
654	warn $_[0];
655	$who->message ($_[0]);
656	};
657	}
658	};
659		700
660	#############################################################################	701	#############################################################################
661	# extcmd framework, basically convert ext <msg>	702	# extcmd framework, basically convert ext <msg>
662	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few	703	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
663		704
…		…
691	defined $path or return;	732	defined $path or return;
692		733
693	unlink "$path.pst";	734	unlink "$path.pst";
694	};	735	};
695		736
696	# old style persistent data, TODO: remove #d#
697	*cf::mapsupport::on_swapin =
698	*cf::mapsupport::on_load = sub {
699	my ($map) = @_;
700
701	my $path = $map->tmpname;
702	$path = $map->path unless defined $path;
703
704	open my $fh, "<:raw", "$path.cfperl"
705	or return; # no perl data
706
707	my $data = Storable::thaw do { local $/; <$fh> };
708
709	$data->{version} <= 1
710	or return; # too new
711
712	$map->_set_obs ($data->{obs});
713	$map->invoke (EVENT_MAP_UPGRADE);
714	};
715
716	attach_to_maps prio => -10000, package => cf::mapsupport::;	737	attach_to_maps prio => -10000, package => cf::mapsupport::;
717		738
718	#############################################################################	739	#############################################################################
719	# load/save perl data associated with player->ob objects	740	# load/save perl data associated with player->ob objects
720		741
721	sub all_objects(@) {	742	sub all_objects(@) {
722	@_, map all_objects ($_->inv), @_	743	@_, map all_objects ($_->inv), @_
723	}	744	}
724		745
		746	# TODO: compatibility cruft, remove when no longer needed
725	attach_to_players	747	attach_to_players
726	on_load => sub {	748	on_load => sub {
727	my ($pl, $path) = @_;	749	my ($pl, $path) = @_;
728		750
729	for my $o (all_objects $pl->ob) {	751	for my $o (all_objects $pl->ob) {
…		…
735	}	757	}
736	},	758	},
737	;	759	;
738		760
739	#############################################################################	761	#############################################################################
740	# core extensions - in perl	762
		763	=head2 CORE EXTENSIONS
		764
		765	Functions and methods that extend core crossfire objects.
		766
		767	=over 4
741		768
742	=item cf::player::exists $login	769	=item cf::player::exists $login
743		770
744	Returns true when the given account exists.	771	Returns true when the given account exists.
745		772
…		…
748	sub cf::player::exists($) {	775	sub cf::player::exists($) {
749	cf::player::find $_[0]	776	cf::player::find $_[0]
750	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;
751	}	778	}
752		779
753	=item $player->reply ($npc, $msg[, $flags])	780	=item $object->reply ($npc, $msg[, $flags])
754		781
755	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>
756	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
757	dialogue with the given NPC character.	784	dialogue with the given NPC character.
758		785
…		…
785	$msg{msgid} = $id;	812	$msg{msgid} = $id;
786		813
787	$self->send ("ext " . to_json \%msg);	814	$self->send ("ext " . to_json \%msg);
788	}	815	}
789		816
		817	=back
		818
		819	=cut
		820
790	#############################################################################	821	#############################################################################
791	# 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
792		832
793	our $safe = new Safe "safe";	833	our $safe = new Safe "safe";
794	our $safe_hole = new Safe::Hole;	834	our $safe_hole = new Safe::Hole;
795		835
796	$SIG{FPE} = 'IGNORE';	836	$SIG{FPE} = 'IGNORE';
797		837
798	$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));
799		839
800	# 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
801		851
802	for (	852	for (
803	["cf::object" => qw(contr pay_amount pay_player)],	853	["cf::object" => qw(contr pay_amount pay_player)],
804	["cf::object::player" => qw(player)],	854	["cf::object::player" => qw(player)],
805	["cf::player" => qw(peaceful)],	855	["cf::player" => qw(peaceful)],
…		…
808	my ($pkg, @funs) = @$_;	858	my ($pkg, @funs) = @$_;
809	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	859	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
810	for @funs;	860	for @funs;
811	}	861	}
812		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
813	sub safe_eval($;@) {	875	sub safe_eval($;@) {
814	my ($code, %vars) = @_;	876	my ($code, %vars) = @_;
815		877
816	my $qcode = $code;	878	my $qcode = $code;
817	$qcode =~ s/"/‟/g; # not allowed in #line filenames	879	$qcode =~ s/"/‟/g; # not allowed in #line filenames
…		…
839	}	901	}
840		902
841	wantarray ? @res : $res[0]	903	wantarray ? @res : $res[0]
842	}	904	}
843		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
844	sub register_script_function {	921	sub register_script_function {
845	my ($fun, $cb) = @_;	922	my ($fun, $cb) = @_;
846		923
847	no strict 'refs';	924	no strict 'refs';
848	*{"safe::$fun"} = $safe_hole->wrap ($cb);	925	*{"safe::$fun"} = $safe_hole->wrap ($cb);
849	}	926	}
850		927
		928	=back
		929
		930	=cut
		931
		932	#############################################################################
		933
		934	=head2 EXTENSION DATABASE SUPPORT
		935
		936	Crossfire maintains a very simple database for extension use. It can
		937	currently store anything that can be serialised using Storable, which
		938	excludes objects.
		939
		940	The parameter C<$family> should best start with the name of the extension
		941	using it, it should be unique.
		942
		943	=over 4
		944
		945	=item $hashref = cf::db_get $family
		946
		947	Return a hashref for use by the extension C<$family>, which can be
		948	modified. After modifications, you have to call C<cf::db_dirty> or
		949	C<cf::db_sync>.
		950
		951	=item $value = cf::db_get $family => $key
		952
		953	Returns a single value from the database
		954
		955	=item cf::db_put $family => $hashref
		956
		957	Stores the given family hashref into the database. Updates are delayed, if
		958	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		959
		960	=item cf::db_put $family => $key => $value
		961
		962	Stores the given C<$value> in the family hash. Updates are delayed, if you
		963	want the data to be synced to disk immediately, use C<cf::db_sync>.
		964
		965	=item cf::db_dirty
		966
		967	Marks the database as dirty, to be updated at a later time.
		968
		969	=item cf::db_sync
		970
		971	Immediately write the database to disk I<if it is dirty>.
		972
		973	=cut
		974
		975	{
		976	my $db;
		977	my $path = cf::localdir . "/database.pst";
		978
		979	sub db_load() {
		980	warn "loading database $path\n";#d# remove later
		981	$db = stat $path ? Storable::retrieve $path : { };
		982	}
		983
		984	my $pid;
		985
		986	sub db_save() {
		987	warn "saving database $path\n";#d# remove later
		988	waitpid $pid, 0 if $pid;
		989	if (0 == ($pid = fork)) {
		990	$db->{_meta}{version} = 1;
		991	Storable::nstore $db, "$path~";
		992	rename "$path~", $path;
		993	cf::_exit 0 if defined $pid;
		994	}
		995	}
		996
		997	my $dirty;
		998
		999	sub db_sync() {
		1000	db_save if $dirty;
		1001	undef $dirty;
		1002	}
		1003
		1004	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {
		1005	db_sync;
		1006	});
		1007
		1008	sub db_dirty() {
		1009	$dirty = 1;
		1010	$idle->start;
		1011	}
		1012
		1013	sub db_get($;$) {
		1014	@_ >= 2
		1015	? $db->{$_[0]}{$_[1]}
		1016	: ($db->{$_[0]} \|\|= { })
		1017	}
		1018
		1019	sub db_put($$;$) {
		1020	if (@_ >= 3) {
		1021	$db->{$_[0]}{$_[1]} = $_[2];
		1022	} else {
		1023	$db->{$_[0]} = $_[1];
		1024	}
		1025	db_dirty;
		1026	}
		1027
		1028	attach_global
		1029	prio => 10000,
		1030	on_cleanup => sub {
		1031	db_sync;
		1032	},
		1033	;
		1034	}
		1035
851	#############################################################################	1036	#############################################################################
852	# the server's main()	1037	# the server's main()
853		1038
		1039	sub cfg_load {
		1040	open my $fh, "<:utf8", cf::confdir . "/config"
		1041	or return;
		1042
		1043	local $/;
		1044	*CFG = YAML::Syck::Load <$fh>;
		1045	}
		1046
854	sub main {	1047	sub main {
		1048	cfg_load;
		1049	db_load;
		1050	load_extensions;
855	Event::loop;	1051	Event::loop;
856	}	1052	}
857		1053
858	#############################################################################	1054	#############################################################################
859	# initialisation	1055	# initialisation
860		1056
		1057	sub _perl_reload(&) {
		1058	my ($msg) = @_;
		1059
		1060	$msg->("reloading...");
		1061
		1062	eval {
		1063	# cancel all watchers
		1064	$_->cancel for Event::all_watchers;
		1065
		1066	# unload all extensions
		1067	for (@exts) {
		1068	$msg->("unloading <$_>");
		1069	unload_extension $_;
		1070	}
		1071
		1072	# unload all modules loaded from $LIBDIR
		1073	while (my ($k, $v) = each %INC) {
		1074	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		1075
		1076	$msg->("removing <$k>");
		1077	delete $INC{$k};
		1078
		1079	$k =~ s/\.pm$//;
		1080	$k =~ s/\//::/g;
		1081
		1082	if (my $cb = $k->can ("unload_module")) {
		1083	$cb->();
		1084	}
		1085
		1086	Symbol::delete_package $k;
		1087	}
		1088
		1089	# sync database to disk
		1090	cf::db_sync;
		1091
		1092	# get rid of safe::, as good as possible
		1093	Symbol::delete_package "safe::$_"
		1094	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
		1095
		1096	# remove register_script_function callbacks
		1097	# TODO
		1098
		1099	# unload cf.pm "a bit"
		1100	delete $INC{"cf.pm"};
		1101
		1102	# don't, removes xs symbols, too,
		1103	# and global variables created in xs
		1104	#Symbol::delete_package __PACKAGE__;
		1105
		1106	# reload cf.pm
		1107	$msg->("reloading cf.pm");
		1108	require cf;
		1109
		1110	# load config and database again
		1111	cf::cfg_load;
		1112	cf::db_load;
		1113
		1114	# load extensions
		1115	$msg->("load extensions");
		1116	cf::load_extensions;
		1117
		1118	# reattach attachments to objects
		1119	$msg->("reattach");
		1120	_global_reattach;
		1121	};
		1122	$msg->($@) if $@;
		1123
		1124	$msg->("reloaded");
		1125	};
		1126
		1127	sub perl_reload() {
		1128	_perl_reload {
		1129	warn $_[0];
		1130	print "$_[0]\n";
		1131	};
		1132	}
		1133
		1134	register_command "perl-reload", 0, sub {
		1135	my ($who, $arg) = @_;
		1136
		1137	if ($who->flag (FLAG_WIZ)) {
		1138	_perl_reload {
		1139	warn $_[0];
		1140	$who->message ($_[0]);
		1141	};
		1142	}
		1143	};
		1144
861	register "<global>", __PACKAGE__;	1145	register "<global>", __PACKAGE__;
862		1146
863	unshift @INC, $LIBDIR;	1147	unshift @INC, $LIBDIR;
864		1148
865	load_extensions;
866
867	$TICK_WATCHER = Event->timer (	1149	$TICK_WATCHER = Event->timer (
868	prio => 1,	1150	prio => 1,
		1151	async => 1,
869	at => $NEXT_TICK \|\| 1,	1152	at => $NEXT_TICK \|\| 1,
870	cb => sub {	1153	cb => sub {
871	cf::server_tick; # one server iteration	1154	cf::server_tick; # one server iteration
872		1155
873	my $NOW = Event::time;	1156	my $NOW = Event::time;
874	$NEXT_TICK += $TICK;	1157	$NEXT_TICK += $TICK;
875		1158
…		…
879	$TICK_WATCHER->at ($NEXT_TICK);	1162	$TICK_WATCHER->at ($NEXT_TICK);
880	$TICK_WATCHER->start;	1163	$TICK_WATCHER->start;
881	},	1164	},
882	);	1165	);
883		1166
884	_reload_2;	1167	IO::AIO::max_poll_time $TICK * 0.2;
		1168
		1169	Event->io (fd => IO::AIO::poll_fileno,
		1170	poll => 'r',
		1171	prio => 5,
		1172	cb => \&IO::AIO::poll_cb);
885		1173
886	1	1174	1
887		1175

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.54 by root, Tue Aug 29 14:49:28 2006 UTC vs. Revision 1.77 by root, Sun Nov 5 11:13:01 2006 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.54 by root, Tue Aug 29 14:49:28 2006 UTC vs.
Revision 1.77 by root, Sun Nov 5 11:13:01 2006 UTC