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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.52 by root, Mon Aug 28 16:52:51 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
		133	=item $object->detach ($attachment)
		134
112	Attach a pre-registered attachment to an object.	135	Attach/detach a pre-registered attachment to an object.
113		136
114	=item $player->attach ($attachment, key => $value...)	137	=item $player->attach ($attachment, key => $value...)
115		138
		139	=item $player->detach ($attachment)
		140
116	Attach a pre-registered attachment to a player.	141	Attach/detach a pre-registered attachment to a player.
117		142
118	=item $map->attach ($attachment, key => $value...) # not yet persistent	143	=item $map->attach ($attachment, key => $value...)
119		144
		145	=item $map->detach ($attachment)
		146
120	Attach 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.
121		156
122	=item cf::attach_global ...	157	=item cf::attach_global ...
123		158
124	Attach handlers for global events.	159	Attach handlers for global events.
125		160
…		…
175	Attach handlers to all maps.	210	Attach handlers to all maps.
176		211
177	=item cf:register_attachment $name, ...	212	=item cf:register_attachment $name, ...
178		213
179	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
180	attachment.	220	attachment.
181		221
182	=item cf:register_map_attachment $name, ...	222	=item cf:register_map_attachment $name, ...
183		223
184	Register an attachment by name through which maps can refer to this	224	Register an attachment by name through which maps can refer to this
…		…
255	}	295	}
256		296
257	sub _attach_attachment {	297	sub _attach_attachment {
258	my ($obj, $name, %arg) = @_;	298	my ($obj, $name, %arg) = @_;
259		299
		300	return if exists $obj->{_attachment}{$name};
		301
260	my $res;	302	my $res;
261		303
262	if (my $attach = $attachment{$name}) {	304	if (my $attach = $attachment{$name}) {
263	my $registry = $obj->registry;	305	my $registry = $obj->registry;
264		306
…		…
276		318
277	$res->{attachment} = $name;	319	$res->{attachment} = $name;
278	$res	320	$res
279	}	321	}
280		322
281	sub cf::object::attach {	323	*cf::object::attach =
		324	*cf::player::attach =
		325	*cf::map::attach = sub {
282	my ($obj, $name, %arg) = @_;	326	my ($obj, $name, %arg) = @_;
283		327
284	_attach_attachment $obj, $name, %arg;	328	_attach_attachment $obj, $name, %arg;
285	}	329	};
286		330
		331	# all those should be optimised
		332	*cf::object::detach =
287	sub cf::player::attach {	333	*cf::player::detach =
		334	*cf::map::detach = sub {
288	my ($obj, $name, %arg) = @_;	335	my ($obj, $name) = @_;
289		336
290	_attach_attachment $obj, $name, %arg;	337	delete $obj->{_attachment}{$name};
291	}	338	reattach ($obj);
		339	};
292		340
293	sub cf::map::attach {	341	*cf::object::attached =
		342	*cf::player::attached =
		343	*cf::map::attached = sub {
294	my ($obj, $name, %arg) = @_;	344	my ($obj, $name) = @_;
295		345
296	_attach_attachment $obj, $name, %arg;	346	exists $obj->{_attachment}{$name}
297	}	347	};
298		348
299	sub attach_global {	349	sub attach_global {
300	_attach @CB_GLOBAL, KLASS_GLOBAL, @_	350	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
301	}	351	}
302		352
…		…
323	my $name = shift;	373	my $name = shift;
324		374
325	$attachment{$name} = [[KLASS_OBJECT, @_]];	375	$attachment{$name} = [[KLASS_OBJECT, @_]];
326	}	376	}
327		377
		378	sub register_player_attachment {
		379	my $name = shift;
		380
		381	$attachment{$name} = [[KLASS_PLAYER, @_]];
		382	}
		383
328	sub register_map_attachment {	384	sub register_map_attachment {
329	my $name = shift;	385	my $name = shift;
330		386
331	$attachment{$name} = [[KLASS_MAP, @_]];	387	$attachment{$name} = [[KLASS_MAP, @_]];
332	}	388	}
…		…
350	for (@$callbacks) {	406	for (@$callbacks) {
351	eval { &{$_->[1]} };	407	eval { &{$_->[1]} };
352		408
353	if ($@) {	409	if ($@) {
354	warn "$@";	410	warn "$@";
355	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	411	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
356	override;	412	override;
357	}	413	}
358		414
359	return 1 if $override;	415	return 1 if $override;
360	}	416	}
361		417
362	0	418	0
363	}	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, $map->valid
		446
		447	Just because you have a perl object does not mean that the corresponding
		448	C-level object still exists. If you try to access an object that has no
		449	valid C counterpart anymore you get an exception at runtime. This method
		450	can be used to test for existence of the C object part without causing an
		451	exception.
		452
		453	=back
		454
		455	=cut
		456
		457	*cf::object::valid =
		458	*cf::player::valid =
		459	*cf::map::valid = \&cf::_valid;
364		460
365	#############################################################################	461	#############################################################################
366	# object support	462	# object support
367		463
368	sub instantiate {	464	sub instantiate {
…		…
397	}	493	}
398	}	494	}
399	}	495	}
400		496
401	sub object_freezer_save {	497	sub object_freezer_save {
402	my ($filename, $objs) = @_;	498	my ($filename, $rdata, $objs) = @_;
403		499
404	if (@$objs) {	500	if (length $$rdata) {
		501	warn sprintf "saving %s (%d,%d)\n",
		502	$filename, length $$rdata, scalar @$objs;
		503
405	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;
406	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	511	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
407	close $fh;	512	close $fh;
408	chmod SAVE_MODE, "$filename.pst~";
409	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	}
410	} else {	522	} else {
		523	unlink $filename;
411	unlink "$filename.pst";	524	unlink "$filename.pst";
412	}	525	}
413
414	chmod SAVE_MODE, "$filename~";
415	rename "$filename~", $filename;
416	}	526	}
417		527
418	sub object_thawer_load {	528	sub object_thawer_load {
419	my ($filename) = @_;	529	my ($filename) = @_;
420		530
		531	local $/;
		532
		533	my $av;
		534
		535	#TODO: use sysread etc.
		536	if (open my $data, "<:raw:perlio", $filename) {
		537	$data = <$data>;
421	open my $fh, "<:raw:perlio", "$filename.pst"	538	if (open my $pst, "<:raw:perlio", "$filename.pst") {
422	or return;	539	$av = eval { (Storable::thaw <$pst>)->{objs} };
		540	}
		541	return ($data, $av);
		542	}
423		543
424	eval { local $/; (Storable::thaw <$fh>)->{objs} }	544	()
425	}	545	}
426		546
427	attach_to_objects	547	attach_to_objects
428	prio => -1000000,	548	prio => -1000000,
429	on_clone => sub {	549	on_clone => sub {
…		…
575	load_extension $ext;	695	load_extension $ext;
576	1	696	1
577	} or warn "$ext not loaded: $@";	697	} or warn "$ext not loaded: $@";
578	}	698	}
579	}	699	}
580
581	sub _perl_reload(&) {
582	my ($msg) = @_;
583
584	$msg->("reloading...");
585
586	eval {
587	# 1. cancel all watchers
588	$_->cancel for Event::all_watchers;
589
590	# 2. unload all extensions
591	for (@exts) {
592	$msg->("unloading <$_>");
593	unload_extension $_;
594	}
595
596	# 3. unload all modules loaded from $LIBDIR
597	while (my ($k, $v) = each %INC) {
598	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
599
600	$msg->("removing <$k>");
601	delete $INC{$k};
602
603	$k =~ s/\.pm$//;
604	$k =~ s/\//::/g;
605
606	if (my $cb = $k->can ("unload_module")) {
607	$cb->();
608	}
609
610	Symbol::delete_package $k;
611	}
612
613	# 4. get rid of safe::, as good as possible
614	Symbol::delete_package "safe::$_"
615	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
616
617	# 5. remove register_script_function callbacks
618	# TODO
619
620	# 6. unload cf.pm "a bit"
621	delete $INC{"cf.pm"};
622
623	# don't, removes xs symbols, too,
624	# and global variables created in xs
625	#Symbol::delete_package __PACKAGE__;
626
627	# 7. reload cf.pm
628	$msg->("reloading cf.pm");
629	require cf;
630	};
631	$msg->($@) if $@;
632
633	$msg->("reloaded");
634	};
635
636	sub perl_reload() {
637	_perl_reload {
638	warn $_[0];
639	print "$_[0]\n";
640	};
641	}
642
643	register_command "perl-reload", 0, sub {
644	my ($who, $arg) = @_;
645
646	if ($who->flag (FLAG_WIZ)) {
647	_perl_reload {
648	warn $_[0];
649	$who->message ($_[0]);
650	};
651	}
652	};
653		700
654	#############################################################################	701	#############################################################################
655	# extcmd framework, basically convert ext <msg>	702	# extcmd framework, basically convert ext <msg>
656	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few	703	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
657		704
…		…
685	defined $path or return;	732	defined $path or return;
686		733
687	unlink "$path.pst";	734	unlink "$path.pst";
688	};	735	};
689		736
690	# old style persistent data, TODO: remove #d#
691	*cf::mapsupport::on_swapin =
692	*cf::mapsupport::on_load = sub {
693	my ($map) = @_;
694
695	my $path = $map->tmpname;
696	$path = $map->path unless defined $path;
697
698	open my $fh, "<:raw", "$path.cfperl"
699	or return; # no perl data
700
701	my $data = Storable::thaw do { local $/; <$fh> };
702
703	$data->{version} <= 1
704	or return; # too new
705
706	$map->_set_obs ($data->{obs});
707	$map->invoke (EVENT_MAP_UPGRADE);
708	};
709
710	attach_to_maps prio => -10000, package => cf::mapsupport::;	737	attach_to_maps prio => -10000, package => cf::mapsupport::;
711		738
712	#############################################################################	739	#############################################################################
713	# load/save perl data associated with player->ob objects	740	# load/save perl data associated with player->ob objects
714		741
715	sub all_objects(@) {	742	sub all_objects(@) {
716	@_, map all_objects ($_->inv), @_	743	@_, map all_objects ($_->inv), @_
717	}	744	}
718		745
		746	# TODO: compatibility cruft, remove when no longer needed
719	attach_to_players	747	attach_to_players
720	on_load => sub {	748	on_load => sub {
721	my ($pl, $path) = @_;	749	my ($pl, $path) = @_;
722		750
723	for my $o (all_objects $pl->ob) {	751	for my $o (all_objects $pl->ob) {
…		…
729	}	757	}
730	},	758	},
731	;	759	;
732		760
733	#############################################################################	761	#############################################################################
734	# core extensions - in perl	762
		763	=head2 CORE EXTENSIONS
		764
		765	Functions and methods that extend core crossfire objects.
		766
		767	=over 4
735		768
736	=item cf::player::exists $login	769	=item cf::player::exists $login
737		770
738	Returns true when the given account exists.	771	Returns true when the given account exists.
739		772
…		…
742	sub cf::player::exists($) {	775	sub cf::player::exists($) {
743	cf::player::find $_[0]	776	cf::player::find $_[0]
744	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;
745	}	778	}
746		779
747	=item $player->reply ($npc, $msg[, $flags])	780	=item $object->reply ($npc, $msg[, $flags])
748		781
749	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>
750	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
751	dialogue with the given NPC character.	784	dialogue with the given NPC character.
752		785
…		…
779	$msg{msgid} = $id;	812	$msg{msgid} = $id;
780		813
781	$self->send ("ext " . to_json \%msg);	814	$self->send ("ext " . to_json \%msg);
782	}	815	}
783		816
		817	=back
		818
		819	=cut
		820
784	#############################################################################	821	#############################################################################
785	# 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
786		832
787	our $safe = new Safe "safe";	833	our $safe = new Safe "safe";
788	our $safe_hole = new Safe::Hole;	834	our $safe_hole = new Safe::Hole;
789		835
790	$SIG{FPE} = 'IGNORE';	836	$SIG{FPE} = 'IGNORE';
791		837
792	$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));
793		839
794	# 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
795		851
796	for (	852	for (
797	["cf::object" => qw(contr pay_amount pay_player)],	853	["cf::object" => qw(contr pay_amount pay_player)],
798	["cf::object::player" => qw(player)],	854	["cf::object::player" => qw(player)],
799	["cf::player" => qw(peaceful)],	855	["cf::player" => qw(peaceful)],
…		…
802	my ($pkg, @funs) = @$_;	858	my ($pkg, @funs) = @$_;
803	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	859	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
804	for @funs;	860	for @funs;
805	}	861	}
806		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
807	sub safe_eval($;@) {	875	sub safe_eval($;@) {
808	my ($code, %vars) = @_;	876	my ($code, %vars) = @_;
809		877
810	my $qcode = $code;	878	my $qcode = $code;
811	$qcode =~ s/"/‟/g; # not allowed in #line filenames	879	$qcode =~ s/"/‟/g; # not allowed in #line filenames
…		…
833	}	901	}
834		902
835	wantarray ? @res : $res[0]	903	wantarray ? @res : $res[0]
836	}	904	}
837		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
838	sub register_script_function {	921	sub register_script_function {
839	my ($fun, $cb) = @_;	922	my ($fun, $cb) = @_;
840		923
841	no strict 'refs';	924	no strict 'refs';
842	*{"safe::$fun"} = $safe_hole->wrap ($cb);	925	*{"safe::$fun"} = $safe_hole->wrap ($cb);
843	}	926	}
844		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
845	#############################################################################	1036	#############################################################################
846	# the server's main()	1037	# the server's main()
847		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
848	sub main {	1047	sub main {
		1048	cfg_load;
		1049	db_load;
		1050	load_extensions;
849	Event::loop;	1051	Event::loop;
850	}	1052	}
851		1053
852	#############################################################################	1054	#############################################################################
853	# initialisation	1055	# initialisation
854		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
855	register "<global>", __PACKAGE__;	1145	register "<global>", __PACKAGE__;
856		1146
857	unshift @INC, $LIBDIR;	1147	unshift @INC, $LIBDIR;
858		1148
859	load_extensions;
860
861	$TICK_WATCHER = Event->timer (	1149	$TICK_WATCHER = Event->timer (
862	prio => 1,	1150	prio => 1,
		1151	async => 1,
863	at => $NEXT_TICK \|\| 1,	1152	at => $NEXT_TICK \|\| 1,
864	cb => sub {	1153	cb => sub {
865	cf::server_tick; # one server iteration	1154	cf::server_tick; # one server iteration
866		1155
867	my $NOW = Event::time;	1156	my $NOW = Event::time;
868	$NEXT_TICK += $TICK;	1157	$NEXT_TICK += $TICK;
869		1158
…		…
873	$TICK_WATCHER->at ($NEXT_TICK);	1162	$TICK_WATCHER->at ($NEXT_TICK);
874	$TICK_WATCHER->start;	1163	$TICK_WATCHER->start;
875	},	1164	},
876	);	1165	);
877		1166
878	_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);
879		1173
880	1	1174	1
881		1175

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.52 by root, Mon Aug 28 16:52:51 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 1.52 by root, Mon Aug 28 16:52:51 2006 UTC vs.
Revision 1.77 by root, Sun Nov 5 11:13:01 2006 UTC