[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 1.82 by root, Sun Dec 3 20:59:52 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, $$rdata;
		507	close $fh;
		508
		509	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
		510	chmod SAVE_MODE, $fh;
406	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	511	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
407	close $fh;	512	close $fh;
408	chmod SAVE_MODE, "$filename.pst~";
409	rename "$filename.pst~", "$filename.pst";	513	rename "$filename.pst~", "$filename.pst";
		514	} else {
		515	unlink "$filename.pst";
		516	}
		517
		518	rename "$filename~", $filename;
		519	} else {
		520	warn "FATAL: $filename~: $!\n";
		521	}
410	} else {	522	} else {
		523	unlink $filename;
411	unlink "$filename.pst";	524	unlink "$filename.pst";
412	}	525	}
		526	}
413		527
414	chmod SAVE_MODE, "$filename~";	528	sub object_freezer_as_string {
415	rename "$filename~", $filename;	529	my ($rdata, $objs) = @_;
		530
		531	use Data::Dumper;
		532
		533	$$rdata . Dumper $objs
416	}	534	}
417		535
418	sub object_thawer_load {	536	sub object_thawer_load {
419	my ($filename) = @_;	537	my ($filename) = @_;
420		538
		539	local $/;
		540
		541	my $av;
		542
		543	#TODO: use sysread etc.
		544	if (open my $data, "<:raw:perlio", $filename) {
		545	$data = <$data>;
421	open my $fh, "<:raw:perlio", "$filename.pst"	546	if (open my $pst, "<:raw:perlio", "$filename.pst") {
422	or return;	547	$av = eval { (Storable::thaw <$pst>)->{objs} };
		548	}
		549	return ($data, $av);
		550	}
423		551
424	eval { local $/; (Storable::thaw <$fh>)->{objs} }	552	()
425	}	553	}
426		554
427	attach_to_objects	555	attach_to_objects
428	prio => -1000000,	556	prio => -1000000,
429	on_clone => sub {	557	on_clone => sub {
…		…
514	. "#line 1 \"$path\"\n{\n"	642	. "#line 1 \"$path\"\n{\n"
515	. (do { local $/; <$fh> })	643	. (do { local $/; <$fh> })
516	. "\n};\n1";	644	. "\n};\n1";
517		645
518	eval $source	646	eval $source
519	or die "$path: $@";	647	or die $@ ? "$path: $@\n"
		648	: "extension disabled.\n";
520		649
521	push @exts, $pkg;	650	push @exts, $pkg;
522	$ext_pkg{$base} = $pkg;	651	$ext_pkg{$base} = $pkg;
523		652
524	# no strict 'refs';	653	# no strict 'refs';
…		…
575	load_extension $ext;	704	load_extension $ext;
576	1	705	1
577	} or warn "$ext not loaded: $@";	706	} or warn "$ext not loaded: $@";
578	}	707	}
579	}	708	}
580
581	sub _perl_reload(&) {
582	my ($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		709
654	#############################################################################	710	#############################################################################
655	# extcmd framework, basically convert ext <msg>	711	# extcmd framework, basically convert ext <msg>
656	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few	712	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
657		713
…		…
685	defined $path or return;	741	defined $path or return;
686		742
687	unlink "$path.pst";	743	unlink "$path.pst";
688	};	744	};
689		745
690	# old style persistent data, TODO: remove #d#
691	*cf::mapsupport::on_swapin =
692	*cf::mapsupport::on_load = sub {
693	my ($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	$map->invoke (EVENT_MAP_UPGRADE);
708	};
709
710	attach_to_maps prio => -10000, package => cf::mapsupport::;	746	attach_to_maps prio => -10000, package => cf::mapsupport::;
711		747
712	#############################################################################	748	#############################################################################
713	# load/save perl data associated with player->ob objects	749	# load/save perl data associated with player->ob objects
714		750
715	sub all_objects(@) {	751	sub all_objects(@) {
716	@_, map all_objects ($_->inv), @_	752	@_, map all_objects ($_->inv), @_
717	}	753	}
718		754
		755	# TODO: compatibility cruft, remove when no longer needed
719	attach_to_players	756	attach_to_players
720	on_load => sub {	757	on_load => sub {
721	my ($pl, $path) = @_;	758	my ($pl, $path) = @_;
722		759
723	for my $o (all_objects $pl->ob) {	760	for my $o (all_objects $pl->ob) {
…		…
729	}	766	}
730	},	767	},
731	;	768	;
732		769
733	#############################################################################	770	#############################################################################
734	# core extensions - in perl	771
		772	=head2 CORE EXTENSIONS
		773
		774	Functions and methods that extend core crossfire objects.
		775
		776	=over 4
735		777
736	=item cf::player::exists $login	778	=item cf::player::exists $login
737		779
738	Returns true when the given account exists.	780	Returns true when the given account exists.
739		781
…		…
742	sub cf::player::exists($) {	784	sub cf::player::exists($) {
743	cf::player::find $_[0]	785	cf::player::find $_[0]
744	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	786	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
745	}	787	}
746		788
747	=item $player->reply ($npc, $msg[, $flags])	789	=item $player_object->reply ($npc, $msg[, $flags])
748		790
749	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
750	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
751	dialogue with the given NPC character.	793	dialogue with the given NPC character.
752		794
…		…
779	$msg{msgid} = $id;	821	$msg{msgid} = $id;
780		822
781	$self->send ("ext " . to_json \%msg);	823	$self->send ("ext " . to_json \%msg);
782	}	824	}
783		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
784	#############################################################################	844	#############################################################################
785	# 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
786		855
787	our $safe = new Safe "safe";	856	our $safe = new Safe "safe";
788	our $safe_hole = new Safe::Hole;	857	our $safe_hole = new Safe::Hole;
789		858
790	$SIG{FPE} = 'IGNORE';	859	$SIG{FPE} = 'IGNORE';
791		860
792	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	861	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
793		862
794	# here we export the classes and methods available to script code	863	# here we export the classes and methods available to script code
		864
		865	=pod
		866
		867	The following fucntions and emthods are available within a safe environment:
		868
		869	cf::object contr pay_amount pay_player
		870	cf::object::player player
		871	cf::player peaceful
		872
		873	=cut
795		874
796	for (	875	for (
797	["cf::object" => qw(contr pay_amount pay_player)],	876	["cf::object" => qw(contr pay_amount pay_player)],
798	["cf::object::player" => qw(player)],	877	["cf::object::player" => qw(player)],
799	["cf::player" => qw(peaceful)],	878	["cf::player" => qw(peaceful)],
…		…
802	my ($pkg, @funs) = @$_;	881	my ($pkg, @funs) = @$_;
803	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	882	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
804	for @funs;	883	for @funs;
805	}	884	}
806		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 + $second', first => 1, second => 4;
		895
		896	=cut
		897
807	sub safe_eval($;@) {	898	sub safe_eval($;@) {
808	my ($code, %vars) = @_;	899	my ($code, %vars) = @_;
809		900
810	my $qcode = $code;	901	my $qcode = $code;
811	$qcode =~ s/"/‟/g; # not allowed in #line filenames	902	$qcode =~ s/"/‟/g; # not allowed in #line filenames
…		…
833	}	924	}
834		925
835	wantarray ? @res : $res[0]	926	wantarray ? @res : $res[0]
836	}	927	}
837		928
		929	=item cf::register_script_function $function => $cb
		930
		931	Register a function that can be called from within map/npc scripts. The
		932	function should be reasonably secure and should be put into a package name
		933	like the extension.
		934
		935	Example: register a function that gets called whenever a map script calls
		936	C<rent::overview>, as used by the C<rent> extension.
		937
		938	cf::register_script_function "rent::overview" => sub {
		939	...
		940	};
		941
		942	=cut
		943
838	sub register_script_function {	944	sub register_script_function {
839	my ($fun, $cb) = @_;	945	my ($fun, $cb) = @_;
840		946
841	no strict 'refs';	947	no strict 'refs';
842	*{"safe::$fun"} = $safe_hole->wrap ($cb);	948	*{"safe::$fun"} = $safe_hole->wrap ($cb);
843	}	949	}
844		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, 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
845	#############################################################################	1060	#############################################################################
846	# the server's main()	1061	# the server's main()
847		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
848	sub main {	1071	sub main {
		1072	cfg_load;
		1073	db_load;
		1074	load_extensions;
849	Event::loop;	1075	Event::loop;
850	}	1076	}
851		1077
852	#############################################################################	1078	#############################################################################
853	# initialisation	1079	# initialisation
854		1080
		1081	sub _perl_reload(&) {
		1082	my ($msg) = @_;
		1083
		1084	$msg->("reloading...");
		1085
		1086	eval {
		1087	# cancel all watchers
		1088	$_->cancel for Event::all_watchers;
		1089
		1090	# unload all extensions
		1091	for (@exts) {
		1092	$msg->("unloading <$_>");
		1093	unload_extension $_;
		1094	}
		1095
		1096	# unload all modules loaded from $LIBDIR
		1097	while (my ($k, $v) = each %INC) {
		1098	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		1099
		1100	$msg->("removing <$k>");
		1101	delete $INC{$k};
		1102
		1103	$k =~ s/\.pm$//;
		1104	$k =~ s/\//::/g;
		1105
		1106	if (my $cb = $k->can ("unload_module")) {
		1107	$cb->();
		1108	}
		1109
		1110	Symbol::delete_package $k;
		1111	}
		1112
		1113	# sync database to disk
		1114	cf::db_sync;
		1115
		1116	# get rid of safe::, as good as possible
		1117	Symbol::delete_package "safe::$_"
		1118	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
		1119
		1120	# remove register_script_function callbacks
		1121	# TODO
		1122
		1123	# unload cf.pm "a bit"
		1124	delete $INC{"cf.pm"};
		1125
		1126	# don't, removes xs symbols, too,
		1127	# and global variables created in xs
		1128	#Symbol::delete_package __PACKAGE__;
		1129
		1130	# reload cf.pm
		1131	$msg->("reloading cf.pm");
		1132	require cf;
		1133
		1134	# load config and database again
		1135	cf::cfg_load;
		1136	cf::db_load;
		1137
		1138	# load extensions
		1139	$msg->("load extensions");
		1140	cf::load_extensions;
		1141
		1142	# reattach attachments to objects
		1143	$msg->("reattach");
		1144	_global_reattach;
		1145	};
		1146	$msg->($@) if $@;
		1147
		1148	$msg->("reloaded");
		1149	};
		1150
		1151	sub perl_reload() {
		1152	_perl_reload {
		1153	warn $_[0];
		1154	print "$_[0]\n";
		1155	};
		1156	}
		1157
		1158	register_command "perl-reload", 0, sub {
		1159	my ($who, $arg) = @_;
		1160
		1161	if ($who->flag (FLAG_WIZ)) {
		1162	_perl_reload {
		1163	warn $_[0];
		1164	$who->message ($_[0]);
		1165	};
		1166	}
		1167	};
		1168
855	register "<global>", __PACKAGE__;	1169	register "<global>", __PACKAGE__;
856		1170
857	unshift @INC, $LIBDIR;	1171	unshift @INC, $LIBDIR;
858		1172
859	load_extensions;
860
861	$TICK_WATCHER = Event->timer (	1173	$TICK_WATCHER = Event->timer (
862	prio => 1,	1174	prio => 1,
		1175	async => 1,
863	at => $NEXT_TICK \|\| 1,	1176	at => $NEXT_TICK \|\| 1,
864	cb => sub {	1177	cb => sub {
865	cf::server_tick; # one server iteration	1178	cf::server_tick; # one server iteration
866		1179
867	my $NOW = Event::time;	1180	my $NOW = Event::time;
868	$NEXT_TICK += $TICK;	1181	$NEXT_TICK += $TICK;
869		1182
870	# if we are delayed by four ticks, skip them all	1183	# if we are delayed by four ticks or more, skip them all
871	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1184	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
872		1185
873	$TICK_WATCHER->at ($NEXT_TICK);	1186	$TICK_WATCHER->at ($NEXT_TICK);
874	$TICK_WATCHER->start;	1187	$TICK_WATCHER->start;
875	},	1188	},
876	);	1189	);
877		1190
878	_reload_2;	1191	IO::AIO::max_poll_time $TICK * 0.2;
		1192
		1193	Event->io (fd => IO::AIO::poll_fileno,
		1194	poll => 'r',
		1195	prio => 5,
		1196	cb => \&IO::AIO::poll_cb);
879		1197
880	1	1198	1
881		1199

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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 1.82 by root, Sun Dec 3 20:59:52 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 1.82 by root, Sun Dec 3 20:59:52 2006 UTC