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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.59 by root, Wed Aug 30 16:30:37 2006 UTC vs.
Revision 1.88 by root, Fri Dec 15 19:29:18 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	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
17		22
18	our %COMMAND = ();	23	our %COMMAND = ();
		24	our %COMMAND_TIME = ();
		25	our %EXTCMD = ();
		26
		27	_init_vars;
		28
19	our @EVENT;	29	our @EVENT;
20	our %PROP_TYPE;	30	our $LIBDIR = datadir . "/ext";
21	our %PROP_IDX;
22	our $LIBDIR = maps_directory "perl";
23		31
24	our $TICK = MAX_TIME * 1e-6;	32	our $TICK = MAX_TIME * 1e-6;
25	our $TICK_WATCHER;	33	our $TICK_WATCHER;
26	our $NEXT_TICK;	34	our $NEXT_TICK;
		35
		36	our %CFG;
		37
		38	our $UPTIME; $UPTIME \|\|= time;
		39
		40	#############################################################################
		41
		42	=head2 GLOBAL VARIABLES
		43
		44	=over 4
		45
		46	=item $cf::UPTIME
		47
		48	The timestamp of the server start (so not actually an uptime).
		49
		50	=item $cf::LIBDIR
		51
		52	The perl library directory, where extensions and cf-specific modules can
		53	be found. It will be added to C<@INC> automatically.
		54
		55	=item $cf::TICK
		56
		57	The interval between server ticks, in seconds.
		58
		59	=item %cf::CFG
		60
		61	Configuration for the server, loaded from C</etc/crossfire/config>, or
		62	from wherever your confdir points to.
		63
		64	=back
		65
		66	=cut
27		67
28	BEGIN {	68	BEGIN {
29	*CORE::GLOBAL::warn = sub {	69	*CORE::GLOBAL::warn = sub {
30	my $msg = join "", @_;	70	my $msg = join "", @_;
31	$msg .= "\n"	71	$msg .= "\n"
…		…
34	print STDERR "cfperl: $msg";	74	print STDERR "cfperl: $msg";
35	LOG llevError, "cfperl: $msg";	75	LOG llevError, "cfperl: $msg";
36	};	76	};
37	}	77	}
38		78
39	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
40
41	# generate property mutators
42	sub prop_gen {
43	my ($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';	79	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74		80
75	# we bless all objects into (empty) derived classes to force a method lookup	81	# we bless all objects into (empty) derived classes to force a method lookup
76	# within the Safe compartment.	82	# 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)) {	83	for my $pkg (qw(
		84	cf::object cf::object::player
		85	cf::client_socket cf::player
		86	cf::arch cf::living
		87	cf::map cf::party cf::region
		88	)) {
78	no strict 'refs';	89	no strict 'refs';
79	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	90	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80	}	91	}
81		92
82	$Event::DIED = sub {	93	$Event::DIED = sub {
…		…
84	};	95	};
85		96
86	my %ext_pkg;	97	my %ext_pkg;
87	my @exts;	98	my @exts;
88	my @hook;	99	my @hook;
89	my %command;
90	my %extcmd;
91		100
92	#############################################################################	101	=head2 UTILITY FUNCTIONS
93	# utility functions	102
		103	=over 4
		104
		105	=cut
94		106
95	use JSON::Syck (); # TODO# replace by JSON::PC once working	107	use JSON::Syck (); # TODO# replace by JSON::PC once working
		108
		109	=item $ref = cf::from_json $json
		110
		111	Converts a JSON string into the corresponding perl data structure.
		112
		113	=cut
96		114
97	sub from_json($) {	115	sub from_json($) {
98	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	116	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99	JSON::Syck::Load $_[0]	117	JSON::Syck::Load $_[0]
100	}	118	}
101		119
		120	=item $json = cf::to_json $ref
		121
		122	Converts a perl data structure into its JSON representation.
		123
		124	=cut
		125
102	sub to_json($) {	126	sub to_json($) {
103	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	127	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104	JSON::Syck::Dump $_[0]	128	JSON::Syck::Dump $_[0]
105	}	129	}
106		130
		131	=back
		132
		133	=cut
		134
107	#############################################################################	135	#############################################################################
108	# "new" plug-in system
109		136
110	=head3 EVENTS AND OBJECT ATTACHMENTS	137	=head2 EVENTS AND OBJECT ATTACHMENTS
111		138
112	=over 4	139	=over 4
113		140
114	=item $object->attach ($attachment, key => $value...)	141	=item $object->attach ($attachment, key => $value...)
115		142
…		…
389	for (@$callbacks) {	416	for (@$callbacks) {
390	eval { &{$_->[1]} };	417	eval { &{$_->[1]} };
391		418
392	if ($@) {	419	if ($@) {
393	warn "$@";	420	warn "$@";
394	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	421	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
395	override;	422	override;
396	}	423	}
397		424
398	return 1 if $override;	425	return 1 if $override;
399	}	426	}
…		…
415	removed in future versions), and there is no public API to access override	442	removed in future versions), and there is no public API to access override
416	results (if you must, access C<@cf::invoke_results> directly).	443	results (if you must, access C<@cf::invoke_results> directly).
417		444
418	=back	445	=back
419		446
420	=head2 methods valid for all pointers	447	=cut
		448
		449	#############################################################################
		450
		451	=head2 METHODS VALID FOR ALL CORE OBJECTS
421		452
422	=over 4	453	=over 4
423		454
424	=item $object->valid	455	=item $object->valid, $player->valid, $map->valid
425
426	=item $player->valid
427
428	=item $map->valid
429		456
430	Just because you have a perl object does not mean that the corresponding	457	Just because you have a perl object does not mean that the corresponding
431	C-level object still exists. If you try to access an object that has no	458	C-level object still exists. If you try to access an object that has no
432	valid C counterpart anymore you get an exception at runtime. This method	459	valid C counterpart anymore you get an exception at runtime. This method
433	can be used to test for existence of the C object part without causing an	460	can be used to test for existence of the C object part without causing an
…		…
478	}	505	}
479		506
480	sub object_freezer_save {	507	sub object_freezer_save {
481	my ($filename, $rdata, $objs) = @_;	508	my ($filename, $rdata, $objs) = @_;
482		509
		510	if (length $$rdata) {
		511	warn sprintf "saving %s (%d,%d)\n",
		512	$filename, length $$rdata, scalar @$objs;
		513
483	if (open my $fh, ">:raw", "$filename~") {	514	if (open my $fh, ">:raw", "$filename~") {
484	chmod SAVE_MODE, $fh;
485	syswrite $fh, $$rdata;
486	close $fh;
487
488	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
489	chmod SAVE_MODE, $fh;	515	chmod SAVE_MODE, $fh;
490	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	516	syswrite $fh, $$rdata;
491	close $fh;	517	close $fh;
		518
		519	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
		520	chmod SAVE_MODE, $fh;
		521	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
		522	close $fh;
492	rename "$filename.pst~", "$filename.pst";	523	rename "$filename.pst~", "$filename.pst";
		524	} else {
		525	unlink "$filename.pst";
		526	}
		527
		528	rename "$filename~", $filename;
493	} else {	529	} else {
494	unlink "$filename.pst";	530	warn "FATAL: $filename~: $!\n";
495	}	531	}
496
497	rename "$filename~", $filename;
498	} else {	532	} else {
499	warn "FATAL: $filename~: $!\n";	533	unlink $filename;
		534	unlink "$filename.pst";
500	}	535	}
		536	}
		537
		538	sub object_freezer_as_string {
		539	my ($rdata, $objs) = @_;
		540
		541	use Data::Dumper;
		542
		543	$$rdata . Dumper $objs
501	}	544	}
502		545
503	sub object_thawer_load {	546	sub object_thawer_load {
504	my ($filename) = @_;	547	my ($filename) = @_;
505		548
		549	local $/;
		550
		551	my $av;
		552
		553	#TODO: use sysread etc.
		554	if (open my $data, "<:raw:perlio", $filename) {
		555	$data = <$data>;
506	open my $fh, "<:raw:perlio", "$filename.pst"	556	if (open my $pst, "<:raw:perlio", "$filename.pst") {
507	or return;	557	$av = eval { (Storable::thaw <$pst>)->{objs} };
		558	}
		559	return ($data, $av);
		560	}
508		561
509	eval { local $/; (Storable::thaw <$fh>)->{objs} }	562	()
510	}	563	}
511		564
512	attach_to_objects	565	attach_to_objects
513	prio => -1000000,	566	prio => -1000000,
514	on_clone => sub {	567	on_clone => sub {
…		…
522	if exists $src->{_attachment};	575	if exists $src->{_attachment};
523	},	576	},
524	;	577	;
525		578
526	#############################################################################	579	#############################################################################
527	# old plug-in events	580	# command handling &c
528		581
529	sub inject_event {	582	=item cf::register_command $name => \&callback($ob,$args);
530	my $extension = shift;
531	my $event_code = shift;
532		583
533	my $cb = $hook[$event_code]{$extension}	584	Register a callback for execution when the client sends the user command
534	or return;	585	$name.
535		586
536	&$cb	587	=cut
537	}
538
539	sub inject_global_event {
540	my $event = shift;
541
542	my $cb = $hook[$event]
543	or return;
544
545	List::Util::max map &$_, values %$cb
546	}
547
548	sub inject_command {
549	my ($name, $obj, $params) = @_;
550
551	for my $cmd (@{ $command{$name} }) {
552	$cmd->[1]->($obj, $params);
553	}
554
555	-1
556	}
557		588
558	sub register_command {	589	sub register_command {
559	my ($name, $time, $cb) = @_;	590	my ($name, $cb) = @_;
560		591
561	my $caller = caller;	592	my $caller = caller;
562	#warn "registering command '$name/$time' to '$caller'";	593	#warn "registering command '$name/$time' to '$caller'";
563		594
564	push @{ $command{$name} }, [$time, $cb, $caller];	595	push @{ $COMMAND{$name} }, [$caller, $cb];
565	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
566	}	596	}
		597
		598	=item cf::register_extcmd $name => \&callback($pl,$packet);
		599
		600	Register a callbackf ro execution when the client sends an extcmd packet.
		601
		602	If the callback returns something, it is sent back as if reply was being
		603	called.
		604
		605	=cut
567		606
568	sub register_extcmd {	607	sub register_extcmd {
569	my ($name, $cb) = @_;	608	my ($name, $cb) = @_;
570		609
571	my $caller = caller;	610	my $caller = caller;
572	#warn "registering extcmd '$name' to '$caller'";	611	#warn "registering extcmd '$name' to '$caller'";
573		612
574	$extcmd{$name} = [$cb, $caller];	613	$EXTCMD{$name} = [$cb, $caller];
575	}	614	}
		615
		616	attach_to_players
		617	on_command => sub {
		618	my ($pl, $name, $params) = @_;
		619
		620	my $cb = $COMMAND{$name}
		621	or return;
		622
		623	for my $cmd (@$cb) {
		624	$cmd->[1]->($pl->ob, $params);
		625	}
		626
		627	cf::override;
		628	},
		629	on_extcmd => sub {
		630	my ($pl, $buf) = @_;
		631
		632	my $msg = eval { from_json $buf };
		633
		634	if (ref $msg) {
		635	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		636	if (my %reply = $cb->[0]->($pl, $msg)) {
		637	$pl->ext_reply ($msg->{msgid}, %reply);
		638	}
		639	}
		640	} else {
		641	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		642	}
		643
		644	cf::override;
		645	},
		646	;
576		647
577	sub register {	648	sub register {
578	my ($base, $pkg) = @_;	649	my ($base, $pkg) = @_;
579		650
580	#TODO	651	#TODO
…		…
599	. "#line 1 \"$path\"\n{\n"	670	. "#line 1 \"$path\"\n{\n"
600	. (do { local $/; <$fh> })	671	. (do { local $/; <$fh> })
601	. "\n};\n1";	672	. "\n};\n1";
602		673
603	eval $source	674	eval $source
604	or die "$path: $@";	675	or die $@ ? "$path: $@\n"
		676	: "extension disabled.\n";
605		677
606	push @exts, $pkg;	678	push @exts, $pkg;
607	$ext_pkg{$base} = $pkg;	679	$ext_pkg{$base} = $pkg;
608		680
609	# no strict 'refs';	681	# no strict 'refs';
…		…
622	# for my $idx (0 .. $#PLUGIN_EVENT) {	694	# for my $idx (0 .. $#PLUGIN_EVENT) {
623	# delete $hook[$idx]{$pkg};	695	# delete $hook[$idx]{$pkg};
624	# }	696	# }
625		697
626	# remove commands	698	# remove commands
627	for my $name (keys %command) {	699	for my $name (keys %COMMAND) {
628	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	700	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
629		701
630	if (@cb) {	702	if (@cb) {
631	$command{$name} = \@cb;	703	$COMMAND{$name} = \@cb;
632	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
633	} else {	704	} else {
634	delete $command{$name};
635	delete $COMMAND{"$name\000"};	705	delete $COMMAND{$name};
636	}	706	}
637	}	707	}
638		708
639	# remove extcmds	709	# remove extcmds
640	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	710	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
641	delete $extcmd{$name};	711	delete $EXTCMD{$name};
642	}	712	}
643		713
644	if (my $cb = $pkg->can ("unload")) {	714	if (my $cb = $pkg->can ("unload")) {
645	eval {	715	eval {
646	$cb->($pkg);	716	$cb->($pkg);
…		…
650		720
651	Symbol::delete_package $pkg;	721	Symbol::delete_package $pkg;
652	}	722	}
653		723
654	sub load_extensions {	724	sub load_extensions {
655	my $LIBDIR = maps_directory "perl";
656
657	for my $ext (<$LIBDIR/*.ext>) {	725	for my $ext (<$LIBDIR/*.ext>) {
658	next unless -r $ext;	726	next unless -r $ext;
659	eval {	727	eval {
660	load_extension $ext;	728	load_extension $ext;
661	1	729	1
662	} or warn "$ext not loaded: $@";	730	} or warn "$ext not loaded: $@";
663	}	731	}
664	}	732	}
665		733
666	sub _perl_reload(&) {
667	my ($msg) = @_;
668
669	$msg->("reloading...");
670
671	eval {
672	# 1. cancel all watchers
673	$_->cancel for Event::all_watchers;
674
675	# 2. unload all extensions
676	for (@exts) {
677	$msg->("unloading <$_>");
678	unload_extension $_;
679	}
680
681	# 3. unload all modules loaded from $LIBDIR
682	while (my ($k, $v) = each %INC) {
683	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
684
685	$msg->("removing <$k>");
686	delete $INC{$k};
687
688	$k =~ s/\.pm$//;
689	$k =~ s/\//::/g;
690
691	if (my $cb = $k->can ("unload_module")) {
692	$cb->();
693	}
694
695	Symbol::delete_package $k;
696	}
697
698	# 4. get rid of safe::, as good as possible
699	Symbol::delete_package "safe::$_"
700	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
701
702	# 5. remove register_script_function callbacks
703	# TODO
704
705	# 6. unload cf.pm "a bit"
706	delete $INC{"cf.pm"};
707
708	# don't, removes xs symbols, too,
709	# and global variables created in xs
710	#Symbol::delete_package __PACKAGE__;
711
712	# 7. reload cf.pm
713	$msg->("reloading cf.pm");
714	require cf;
715	};
716	$msg->($@) if $@;
717
718	$msg->("reloaded");
719	};
720
721	sub perl_reload() {
722	_perl_reload {
723	warn $_[0];
724	print "$_[0]\n";
725	};
726	}
727
728	register_command "perl-reload", 0, sub {
729	my ($who, $arg) = @_;
730
731	if ($who->flag (FLAG_WIZ)) {
732	_perl_reload {
733	warn $_[0];
734	$who->message ($_[0]);
735	};
736	}
737	};
738
739	#############################################################################
740	# extcmd framework, basically convert ext <msg>
741	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
742
743	attach_to_players
744	on_extcmd => sub {
745	my ($pl, $buf) = @_;
746
747	my $msg = eval { from_json $buf };
748
749	if (ref $msg) {
750	if (my $cb = $extcmd{$msg->{msgtype}}) {
751	if (my %reply = $cb->[0]->($pl, $msg)) {
752	$pl->ext_reply ($msg->{msgid}, %reply);
753	}
754	}
755	} else {
756	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
757	}
758
759	cf::override;
760	},
761	;
762
763	#############################################################################	734	#############################################################################
764	# load/save/clean perl data associated with a map	735	# load/save/clean perl data associated with a map
765		736
766	*cf::mapsupport::on_clean = sub {	737	*cf::mapsupport::on_clean = sub {
767	my ($map) = @_;	738	my ($map) = @_;
…		…
779		750
780	sub all_objects(@) {	751	sub all_objects(@) {
781	@_, map all_objects ($_->inv), @_	752	@_, map all_objects ($_->inv), @_
782	}	753	}
783		754
		755	# TODO: compatibility cruft, remove when no longer needed
784	attach_to_players	756	attach_to_players
785	on_load => sub {	757	on_load => sub {
786	my ($pl, $path) = @_;	758	my ($pl, $path) = @_;
787		759
788	for my $o (all_objects $pl->ob) {	760	for my $o (all_objects $pl->ob) {
…		…
794	}	766	}
795	},	767	},
796	;	768	;
797		769
798	#############################################################################	770	#############################################################################
799	# core extensions - in perl	771
		772	=head2 CORE EXTENSIONS
		773
		774	Functions and methods that extend core crossfire objects.
		775
		776	=over 4
800		777
801	=item cf::player::exists $login	778	=item cf::player::exists $login
802		779
803	Returns true when the given account exists.	780	Returns true when the given account exists.
804		781
…		…
807	sub cf::player::exists($) {	784	sub cf::player::exists($) {
808	cf::player::find $_[0]	785	cf::player::find $_[0]
809	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	786	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
810	}	787	}
811		788
812	=item $player->reply ($npc, $msg[, $flags])	789	=item $player_object->reply ($npc, $msg[, $flags])
813		790
814	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
815	can be C<undef>. Does the right thing when the player is currently in a	792	can be C<undef>. Does the right thing when the player is currently in a
816	dialogue with the given NPC character.	793	dialogue with the given NPC character.
817		794
…		…
844	$msg{msgid} = $id;	821	$msg{msgid} = $id;
845		822
846	$self->send ("ext " . to_json \%msg);	823	$self->send ("ext " . to_json \%msg);
847	}	824	}
848		825
		826	=item $player_object->may ("access")
		827
		828	Returns wether the given player is authorized to access resource "access"
		829	(e.g. "command_wizcast").
		830
		831	=cut
		832
		833	sub cf::object::player::may {
		834	my ($self, $access) = @_;
		835
		836	$self->flag (cf::FLAG_WIZ) \|\|
		837	(ref $cf::CFG{"may_$access"}
		838	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		839	: $cf::CFG{"may_$access"})
		840	}
		841
		842	=cut
		843
849	#############################################################################	844	#############################################################################
850	# map scripting support	845
		846	=head2 SAFE SCRIPTING
		847
		848	Functions that provide a safe environment to compile and execute
		849	snippets of perl code without them endangering the safety of the server
		850	itself. Looping constructs, I/O operators and other built-in functionality
		851	is not available in the safe scripting environment, and the number of
		852	functions and methods that can be called is greatly reduced.
		853
		854	=cut
851		855
852	our $safe = new Safe "safe";	856	our $safe = new Safe "safe";
853	our $safe_hole = new Safe::Hole;	857	our $safe_hole = new Safe::Hole;
854		858
855	$SIG{FPE} = 'IGNORE';	859	$SIG{FPE} = 'IGNORE';
856		860
857	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	861	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
858		862
859	# here we export the classes and methods available to script code	863	# here we export the classes and methods available to script code
		864
		865	=pod
		866
		867	The following fucntions and emthods are available within a safe environment:
		868
		869	cf::object contr pay_amount pay_player
		870	cf::object::player player
		871	cf::player peaceful
		872
		873	=cut
860		874
861	for (	875	for (
862	["cf::object" => qw(contr pay_amount pay_player)],	876	["cf::object" => qw(contr pay_amount pay_player)],
863	["cf::object::player" => qw(player)],	877	["cf::object::player" => qw(player)],
864	["cf::player" => qw(peaceful)],	878	["cf::player" => qw(peaceful)],
…		…
867	my ($pkg, @funs) = @$_;	881	my ($pkg, @funs) = @$_;
868	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	882	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
869	for @funs;	883	for @funs;
870	}	884	}
871		885
		886	=over 4
		887
		888	=item @retval = safe_eval $code, [var => value, ...]
		889
		890	Compiled and executes the given perl code snippet. additional var/value
		891	pairs result in temporary local (my) scalar variables of the given name
		892	that are available in the code snippet. Example:
		893
		894	my $five = safe_eval '$first + $second', first => 1, second => 4;
		895
		896	=cut
		897
872	sub safe_eval($;@) {	898	sub safe_eval($;@) {
873	my ($code, %vars) = @_;	899	my ($code, %vars) = @_;
874		900
875	my $qcode = $code;	901	my $qcode = $code;
876	$qcode =~ s/"/‟/g; # not allowed in #line filenames	902	$qcode =~ s/"/‟/g; # not allowed in #line filenames
…		…
898	}	924	}
899		925
900	wantarray ? @res : $res[0]	926	wantarray ? @res : $res[0]
901	}	927	}
902		928
		929	=item cf::register_script_function $function => $cb
		930
		931	Register a function that can be called from within map/npc scripts. The
		932	function should be reasonably secure and should be put into a package name
		933	like the extension.
		934
		935	Example: register a function that gets called whenever a map script calls
		936	C<rent::overview>, as used by the C<rent> extension.
		937
		938	cf::register_script_function "rent::overview" => sub {
		939	...
		940	};
		941
		942	=cut
		943
903	sub register_script_function {	944	sub register_script_function {
904	my ($fun, $cb) = @_;	945	my ($fun, $cb) = @_;
905		946
906	no strict 'refs';	947	no strict 'refs';
907	*{"safe::$fun"} = $safe_hole->wrap ($cb);	948	*{"safe::$fun"} = $safe_hole->wrap ($cb);
908	}	949	}
909		950
		951	=back
		952
		953	=cut
		954
		955	#############################################################################
		956
		957	=head2 EXTENSION DATABASE SUPPORT
		958
		959	Crossfire maintains a very simple database for extension use. It can
		960	currently store anything that can be serialised using Storable, which
		961	excludes objects.
		962
		963	The parameter C<$family> should best start with the name of the extension
		964	using it, it should be unique.
		965
		966	=over 4
		967
		968	=item $hashref = cf::db_get $family
		969
		970	Return a hashref for use by the extension C<$family>, which can be
		971	modified. After modifications, you have to call C<cf::db_dirty> or
		972	C<cf::db_sync>.
		973
		974	=item $value = cf::db_get $family => $key
		975
		976	Returns a single value from the database
		977
		978	=item cf::db_put $family => $hashref
		979
		980	Stores the given family hashref into the database. Updates are delayed, if
		981	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		982
		983	=item cf::db_put $family => $key => $value
		984
		985	Stores the given C<$value> in the family hash. Updates are delayed, if you
		986	want the data to be synced to disk immediately, use C<cf::db_sync>.
		987
		988	=item cf::db_dirty
		989
		990	Marks the database as dirty, to be updated at a later time.
		991
		992	=item cf::db_sync
		993
		994	Immediately write the database to disk I<if it is dirty>.
		995
		996	=cut
		997
		998	our $DB;
		999
		1000	{
		1001	my $path = cf::localdir . "/database.pst";
		1002
		1003	sub db_load() {
		1004	warn "loading database $path\n";#d# remove later
		1005	$DB = stat $path ? Storable::retrieve $path : { };
		1006	}
		1007
		1008	my $pid;
		1009
		1010	sub db_save() {
		1011	warn "saving database $path\n";#d# remove later
		1012	waitpid $pid, 0 if $pid;
		1013	if (0 == ($pid = fork)) {
		1014	$DB->{_meta}{version} = 1;
		1015	Storable::nstore $DB, "$path~";
		1016	rename "$path~", $path;
		1017	cf::_exit 0 if defined $pid;
		1018	}
		1019	}
		1020
		1021	my $dirty;
		1022
		1023	sub db_sync() {
		1024	db_save if $dirty;
		1025	undef $dirty;
		1026	}
		1027
		1028	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
		1029	db_sync;
		1030	});
		1031
		1032	sub db_dirty() {
		1033	$dirty = 1;
		1034	$idle->start;
		1035	}
		1036
		1037	sub db_get($;$) {
		1038	@_ >= 2
		1039	? $DB->{$_[0]}{$_[1]}
		1040	: ($DB->{$_[0]} \|\|= { })
		1041	}
		1042
		1043	sub db_put($$;$) {
		1044	if (@_ >= 3) {
		1045	$DB->{$_[0]}{$_[1]} = $_[2];
		1046	} else {
		1047	$DB->{$_[0]} = $_[1];
		1048	}
		1049	db_dirty;
		1050	}
		1051
		1052	attach_global
		1053	prio => 10000,
		1054	on_cleanup => sub {
		1055	db_sync;
		1056	},
		1057	;
		1058	}
		1059
910	#############################################################################	1060	#############################################################################
911	# the server's main()	1061	# the server's main()
912		1062
		1063	sub cfg_load {
		1064	open my $fh, "<:utf8", cf::confdir . "/config"
		1065	or return;
		1066
		1067	local $/;
		1068	*CFG = YAML::Syck::Load <$fh>;
		1069	}
		1070
913	sub main {	1071	sub main {
		1072	cfg_load;
		1073	db_load;
		1074	load_extensions;
914	Event::loop;	1075	Event::loop;
915	}	1076	}
916		1077
917	#############################################################################	1078	#############################################################################
918	# initialisation	1079	# initialisation
919		1080
		1081	sub _perl_reload(&) {
		1082	my ($msg) = @_;
		1083
		1084	$msg->("reloading...");
		1085
		1086	eval {
		1087	# cancel all watchers
		1088	for (Event::all_watchers) {
		1089	$_->cancel if $_->data & WF_AUTOCANCEL;
		1090	}
		1091
		1092	# unload all extensions
		1093	for (@exts) {
		1094	$msg->("unloading <$_>");
		1095	unload_extension $_;
		1096	}
		1097
		1098	# unload all modules loaded from $LIBDIR
		1099	while (my ($k, $v) = each %INC) {
		1100	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		1101
		1102	$msg->("removing <$k>");
		1103	delete $INC{$k};
		1104
		1105	$k =~ s/\.pm$//;
		1106	$k =~ s/\//::/g;
		1107
		1108	if (my $cb = $k->can ("unload_module")) {
		1109	$cb->();
		1110	}
		1111
		1112	Symbol::delete_package $k;
		1113	}
		1114
		1115	# sync database to disk
		1116	cf::db_sync;
		1117
		1118	# get rid of safe::, as good as possible
		1119	Symbol::delete_package "safe::$_"
		1120	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
		1121
		1122	# remove register_script_function callbacks
		1123	# TODO
		1124
		1125	# unload cf.pm "a bit"
		1126	delete $INC{"cf.pm"};
		1127
		1128	# don't, removes xs symbols, too,
		1129	# and global variables created in xs
		1130	#Symbol::delete_package __PACKAGE__;
		1131
		1132	# reload cf.pm
		1133	$msg->("reloading cf.pm");
		1134	require cf;
		1135
		1136	# load config and database again
		1137	cf::cfg_load;
		1138	cf::db_load;
		1139
		1140	# load extensions
		1141	$msg->("load extensions");
		1142	cf::load_extensions;
		1143
		1144	# reattach attachments to objects
		1145	$msg->("reattach");
		1146	_global_reattach;
		1147	};
		1148	$msg->($@) if $@;
		1149
		1150	$msg->("reloaded");
		1151	};
		1152
		1153	sub perl_reload() {
		1154	_perl_reload {
		1155	warn $_[0];
		1156	print "$_[0]\n";
		1157	};
		1158	}
		1159
920	register "<global>", __PACKAGE__;	1160	register "<global>", __PACKAGE__;
921		1161
		1162	register_command "perl-reload" => sub {
		1163	my ($who, $arg) = @_;
		1164
		1165	if ($who->flag (FLAG_WIZ)) {
		1166	_perl_reload {
		1167	warn $_[0];
		1168	$who->message ($_[0]);
		1169	};
		1170	}
		1171	};
		1172
922	unshift @INC, $LIBDIR;	1173	unshift @INC, $LIBDIR;
923		1174
924	load_extensions;
925
926	$TICK_WATCHER = Event->timer (	1175	$TICK_WATCHER = Event->timer (
927	prio => 1,	1176	prio => 1,
		1177	async => 1,
928	at => $NEXT_TICK \|\| 1,	1178	at => $NEXT_TICK \|\| 1,
		1179	data => WF_AUTOCANCEL,
929	cb => sub {	1180	cb => sub {
930	cf::server_tick; # one server iteration	1181	cf::server_tick; # one server iteration
931		1182
932	my $NOW = Event::time;	1183	my $NOW = Event::time;
933	$NEXT_TICK += $TICK;	1184	$NEXT_TICK += $TICK;
934		1185
935	# if we are delayed by four ticks, skip them all	1186	# if we are delayed by four ticks or more, skip them all
936	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1187	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
937		1188
938	$TICK_WATCHER->at ($NEXT_TICK);	1189	$TICK_WATCHER->at ($NEXT_TICK);
939	$TICK_WATCHER->start;	1190	$TICK_WATCHER->start;
940	},	1191	},
941	);	1192	);
942		1193
943	_reload_2;	1194	IO::AIO::max_poll_time $TICK * 0.2;
		1195
		1196	Event->io (fd => IO::AIO::poll_fileno,
		1197	poll => 'r',
		1198	prio => 5,
		1199	data => WF_AUTOCANCEL,
		1200	cb => \&IO::AIO::poll_cb);
944		1201
945	1	1202	1
946		1203

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.59 by root, Wed Aug 30 16:30:37 2006 UTC vs. Revision 1.88 by root, Fri Dec 15 19:29:18 2006 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.59 by root, Wed Aug 30 16:30:37 2006 UTC vs.
Revision 1.88 by root, Fri Dec 15 19:29:18 2006 UTC