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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.49 by root, Sun Aug 27 17:59:26 2006 UTC vs.
Revision 1.78 by root, Tue Nov 7 00:15:27 2006 UTC

…		…
5	use Storable;	5	use Storable;
6	use Opcode;	6	use Opcode;
7	use Safe;	7	use Safe;
8	use Safe::Hole;	8	use Safe::Hole;
9		9
		10	use IO::AIO ();
		11	use YAML::Syck ();
10	use Time::HiRes;	12	use Time::HiRes;
11	use Event;	13	use Event;
12	$Event::Eval = 1; # no idea why this is required, but it is	14	$Event::Eval = 1; # no idea why this is required, but it is
13		15
		16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		17	$YAML::Syck::ImplicitUnicode = 1;
		18
14	use strict;	19	use strict;
15		20
16	_reload_1;	21	_init_vars;
17		22
18	our %COMMAND = ();	23	our %COMMAND = ();
19	our @EVENT;	24	our @EVENT;
20	our %PROP_TYPE;
21	our %PROP_IDX;
22	our $LIBDIR = maps_directory "perl";	25	our $LIBDIR = maps_directory "perl";
23		26
24	our $TICK = MAX_TIME * 1e-6;	27	our $TICK = MAX_TIME * 1e-6;
25	our $TICK_WATCHER;	28	our $TICK_WATCHER;
26	our $NEXT_TICK;	29	our $NEXT_TICK;
		30
		31	our %CFG;
		32
		33	our $uptime;
		34
		35	$uptime \|\|= time;
		36
		37	#############################################################################
		38
		39	=head2 GLOBAL VARIABLES
		40
		41	=over 4
		42
		43	=item $cf::LIBDIR
		44
		45	The perl library directory, where extensions and cf-specific modules can
		46	be found. It will be added to C<@INC> automatically.
		47
		48	=item $cf::TICK
		49
		50	The interval between server ticks, in seconds.
		51
		52	=item %cf::CFG
		53
		54	Configuration for the server, loaded from C</etc/crossfire/config>, or
		55	from wherever your confdir points to.
		56
		57	=back
		58
		59	=cut
27		60
28	BEGIN {	61	BEGIN {
29	*CORE::GLOBAL::warn = sub {	62	*CORE::GLOBAL::warn = sub {
30	my $msg = join "", @_;	63	my $msg = join "", @_;
31	$msg .= "\n"	64	$msg .= "\n"
…		…
34	print STDERR "cfperl: $msg";	67	print STDERR "cfperl: $msg";
35	LOG llevError, "cfperl: $msg";	68	LOG llevError, "cfperl: $msg";
36	};	69	};
37	}	70	}
38		71
39	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
40
41	# generate property mutators
42	sub prop_gen {
43	my ($prefix, $class) = @_;
44
45	no strict 'refs';
46
47	for my $prop (keys %PROP_TYPE) {
48	$prop =~ /^\Q$prefix\E_(.*$)/ or next;
49	my $sub = lc $1;
50
51	my $type = $PROP_TYPE{$prop};
52	my $idx = $PROP_IDX {$prop};
53
54	{"$class\::get_$sub"} = {"$class\::$sub"} = sub {
55	$_[0]->get_property ($type, $idx)
56	};
57
58	*{"$class\::set_$sub"} = sub {
59	$_[0]->set_property ($type, $idx, $_[1]);
60	} unless $ignore_set{$prop};
61	}
62	}
63
64	# auto-generate most of the API
65
66	prop_gen OBJECT_PROP => "cf::object";
67	# CFAPI_OBJECT_ANIMATION?
68	prop_gen PLAYER_PROP => "cf::object::player";
69
70	prop_gen MAP_PROP => "cf::map";
71	prop_gen ARCH_PROP => "cf::arch";
72
73	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	72	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74		73
75	# we bless all objects into (empty) derived classes to force a method lookup	74	# we bless all objects into (empty) derived classes to force a method lookup
76	# within the Safe compartment.	75	# within the Safe compartment.
77	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {	76	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {
78	no strict 'refs';	77	no strict 'refs';
79	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	78	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80	}	79	}
81		80
82	$Event::DIED = sub {	81	$Event::DIED = sub {
…		…
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
…		…
173	=item cf::attach_to_maps ...	208	=item cf::attach_to_maps ...
174		209
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, ...
		213
		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
		220	attachment.
		221
		222	=item cf:register_map_attachment $name, ...
		223
		224	Register an attachment by name through which maps can refer to this
		225	attachment.
178		226
179	=cut	227	=cut
180		228
181	# the following variables are defined in .xs and must not be re-created	229	# the following variables are defined in .xs and must not be re-created
182	our @CB_GLOBAL = (); # registry for all global events	230	our @CB_GLOBAL = (); # registry for all global events
…		…
247	}	295	}
248		296
249	sub _attach_attachment {	297	sub _attach_attachment {
250	my ($obj, $name, %arg) = @_;	298	my ($obj, $name, %arg) = @_;
251		299
		300	return if exists $obj->{_attachment}{$name};
		301
252	my $res;	302	my $res;
253		303
254	if (my $attach = $attachment{$name}) {	304	if (my $attach = $attachment{$name}) {
255	my $registry = $obj->registry;	305	my $registry = $obj->registry;
256		306
…		…
262	$obj->{$name} = \%arg;	312	$obj->{$name} = \%arg;
263	} else {	313	} else {
264	warn "object uses attachment '$name' that is not available, postponing.\n";	314	warn "object uses attachment '$name' that is not available, postponing.\n";
265	}	315	}
266		316
267	push @{$obj->{_attachment}}, $name;	317	$obj->{_attachment}{$name} = undef;
268		318
269	$res->{attachment} = $name;	319	$res->{attachment} = $name;
270	$res	320	$res
271	}	321	}
272		322
273	sub cf::object::attach {	323	*cf::object::attach =
		324	*cf::player::attach =
		325	*cf::map::attach = sub {
274	my ($obj, $name, %arg) = @_;	326	my ($obj, $name, %arg) = @_;
275		327
276	_attach_attachment $obj, $name, %arg;	328	_attach_attachment $obj, $name, %arg;
277	}	329	};
278		330
		331	# all those should be optimised
		332	*cf::object::detach =
279	sub cf::player::attach {	333	*cf::player::detach =
		334	*cf::map::detach = sub {
280	my ($obj, $name, %arg) = @_;	335	my ($obj, $name) = @_;
281		336
282	_attach_attachment KLASS_PLAYER, $obj, $name, %arg;	337	delete $obj->{_attachment}{$name};
283	}	338	reattach ($obj);
		339	};
284		340
285	sub cf::map::attach {	341	*cf::object::attached =
		342	*cf::player::attached =
		343	*cf::map::attached = sub {
286	my ($obj, $name, %arg) = @_;	344	my ($obj, $name) = @_;
287		345
288	_attach_attachment KLASS_MAP, $obj, $name, %arg;	346	exists $obj->{_attachment}{$name}
289	}	347	};
290		348
291	sub attach_global {	349	sub attach_global {
292	_attach @CB_GLOBAL, KLASS_GLOBAL, @_	350	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
293	}	351	}
294		352
…		…
315	my $name = shift;	373	my $name = shift;
316		374
317	$attachment{$name} = [[KLASS_OBJECT, @_]];	375	$attachment{$name} = [[KLASS_OBJECT, @_]];
318	}	376	}
319		377
		378	sub register_player_attachment {
		379	my $name = shift;
		380
		381	$attachment{$name} = [[KLASS_PLAYER, @_]];
		382	}
		383
		384	sub register_map_attachment {
		385	my $name = shift;
		386
		387	$attachment{$name} = [[KLASS_MAP, @_]];
		388	}
		389
320	our $override;	390	our $override;
321	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	391	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
322		392
323	sub override {	393	sub override {
324	$override = 1;	394	$override = 1;
…		…
336	for (@$callbacks) {	406	for (@$callbacks) {
337	eval { &{$_->[1]} };	407	eval { &{$_->[1]} };
338		408
339	if ($@) {	409	if ($@) {
340	warn "$@";	410	warn "$@";
341	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	411	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
342	override;	412	override;
343	}	413	}
344		414
345	return 1 if $override;	415	return 1 if $override;
346	}	416	}
347		417
348	0	418	0
349	}	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, $map->valid
		446
		447	Just because you have a perl object does not mean that the corresponding
		448	C-level object still exists. If you try to access an object that has no
		449	valid C counterpart anymore you get an exception at runtime. This method
		450	can be used to test for existence of the C object part without causing an
		451	exception.
		452
		453	=back
		454
		455	=cut
		456
		457	*cf::object::valid =
		458	*cf::player::valid =
		459	*cf::map::valid = \&cf::_valid;
350		460
351	#############################################################################	461	#############################################################################
352	# object support	462	# object support
353		463
354	sub instantiate {	464	sub instantiate {
…		…
368	my ($obj) = @_;	478	my ($obj) = @_;
369	my $registry = $obj->registry;	479	my $registry = $obj->registry;
370		480
371	@$registry = ();	481	@$registry = ();
372		482
373	delete $obj->{_attachment} unless @{ $obj->{_attachment} \|\| [] };	483	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };
374		484
375	for my $name (@{ $obj->{_attachment} \|\| [] }) {	485	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {
376	if (my $attach = $attachment{$name}) {	486	if (my $attach = $attachment{$name}) {
377	for (@$attach) {	487	for (@$attach) {
378	my ($klass, @attach) = @$_;	488	my ($klass, @attach) = @$_;
379	_attach @$registry, $klass, @attach;	489	_attach @$registry, $klass, @attach;
380	}	490	}
…		…
383	}	493	}
384	}	494	}
385	}	495	}
386		496
387	sub object_freezer_save {	497	sub object_freezer_save {
388	my ($filename, $objs) = @_;	498	my ($filename, $rdata, $objs) = @_;
389		499
390	$filename .= ".pst";	500	if (length $$rdata) {
		501	warn sprintf "saving %s (%d,%d)\n",
		502	$filename, length $$rdata, scalar @$objs;
391		503
392	if (@$objs) {
393	open my $fh, ">:raw", "$filename~";	504	if (open my $fh, ">:raw", "$filename~") {
394	chmod $fh, SAVE_MODE;	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;
395	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	511	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
396	close $fh;	512	close $fh;
		513	rename "$filename.pst~", "$filename.pst";
		514	} else {
		515	unlink "$filename.pst";
		516	}
		517
397	rename "$filename~", $filename;	518	rename "$filename~", $filename;
		519	} else {
		520	warn "FATAL: $filename~: $!\n";
		521	}
398	} else {	522	} else {
399	unlink $filename;	523	unlink $filename;
		524	unlink "$filename.pst";
400	}	525	}
401	}	526	}
402		527
403	sub object_thawer_load {	528	sub object_thawer_load {
404	my ($filename) = @_;	529	my ($filename) = @_;
405		530
		531	local $/;
		532
		533	my $av;
		534
		535	#TODO: use sysread etc.
		536	if (open my $data, "<:raw:perlio", $filename) {
		537	$data = <$data>;
406	open my $fh, "<:raw:perlio", "$filename.pst"	538	if (open my $pst, "<:raw:perlio", "$filename.pst") {
407	or return;	539	$av = eval { (Storable::thaw <$pst>)->{objs} };
		540	}
		541	return ($data, $av);
		542	}
408		543
409	eval { local $/; (Storable::thaw <$fh>)->{objs} }	544	()
410	}	545	}
411		546
412	attach_to_objects	547	attach_to_objects
413	prio => -1000000,	548	prio => -1000000,
414	on_clone => sub {	549	on_clone => sub {
…		…
416		551
417	@{$dst->registry} = @{$src->registry};	552	@{$dst->registry} = @{$src->registry};
418		553
419	%$dst = %$src;	554	%$dst = %$src;
420		555
421	$dst->{_attachment} = [@{ $src->{_attachment} }]	556	%{$dst->{_attachment}} = %{$src->{_attachment}}
422	if exists $src->{_attachment};	557	if exists $src->{_attachment};
423	},	558	},
424	;	559	;
425		560
426	#############################################################################	561	#############################################################################
…		…
560	load_extension $ext;	695	load_extension $ext;
561	1	696	1
562	} or warn "$ext not loaded: $@";	697	} or warn "$ext not loaded: $@";
563	}	698	}
564	}	699	}
565
566	sub _perl_reload(&) {
567	my ($msg) = @_;
568
569	$msg->("reloading...");
570
571	eval {
572	# 1. cancel all watchers
573	$_->cancel for Event::all_watchers;
574
575	# 2. unload all extensions
576	for (@exts) {
577	$msg->("unloading <$_>");
578	unload_extension $_;
579	}
580
581	# 3. unload all modules loaded from $LIBDIR
582	while (my ($k, $v) = each %INC) {
583	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
584
585	$msg->("removing <$k>");
586	delete $INC{$k};
587
588	$k =~ s/\.pm$//;
589	$k =~ s/\//::/g;
590
591	if (my $cb = $k->can ("unload_module")) {
592	$cb->();
593	}
594
595	Symbol::delete_package $k;
596	}
597
598	# 4. get rid of safe::, as good as possible
599	Symbol::delete_package "safe::$_"
600	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
601
602	# 5. remove register_script_function callbacks
603	# TODO
604
605	# 6. unload cf.pm "a bit"
606	delete $INC{"cf.pm"};
607
608	# don't, removes xs symbols, too,
609	# and global variables created in xs
610	#Symbol::delete_package __PACKAGE__;
611
612	# 7. reload cf.pm
613	$msg->("reloading cf.pm");
614	require cf;
615	};
616	$msg->($@) if $@;
617
618	$msg->("reloaded");
619	};
620
621	sub perl_reload() {
622	_perl_reload {
623	warn $_[0];
624	print "$_[0]\n";
625	};
626	}
627
628	register_command "perl-reload", 0, sub {
629	my ($who, $arg) = @_;
630
631	if ($who->flag (FLAG_WIZ)) {
632	_perl_reload {
633	warn $_[0];
634	$who->message ($_[0]);
635	};
636	}
637	};
638		700
639	#############################################################################	701	#############################################################################
640	# extcmd framework, basically convert ext <msg>	702	# extcmd framework, basically convert ext <msg>
641	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few	703	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
642		704
…		…
667	my ($map) = @_;	729	my ($map) = @_;
668		730
669	my $path = $map->tmpname;	731	my $path = $map->tmpname;
670	defined $path or return;	732	defined $path or return;
671		733
672	unlink "$path.cfperl";
673	unlink "$path.pst";	734	unlink "$path.pst";
674	};	735	};
675		736
676	*cf::mapsupport::on_swapin =
677	*cf::mapsupport::on_load = sub {
678	my ($map) = @_;
679
680	my $path = $map->tmpname;
681	$path = $map->path unless defined $path;
682
683	open my $fh, "<:raw", "$path.cfperl"
684	or return; # no perl data
685
686	my $data = Storable::thaw do { local $/; <$fh> };
687
688	$data->{version} <= 1
689	or return; # too new
690
691	$map->_set_obs ($data->{obs});
692	};
693
694	attach_to_maps prio => -10000, package => cf::mapsupport::;	737	attach_to_maps prio => -10000, package => cf::mapsupport::;
695		738
696	#############################################################################	739	#############################################################################
697	# load/save perl data associated with player->ob objects	740	# load/save perl data associated with player->ob objects
698		741
699	sub all_objects(@) {	742	sub all_objects(@) {
700	@_, map all_objects ($_->inv), @_	743	@_, map all_objects ($_->inv), @_
701	}	744	}
702		745
		746	# TODO: compatibility cruft, remove when no longer needed
703	attach_to_players	747	attach_to_players
704	on_load => sub {	748	on_load => sub {
705	my ($pl, $path) = @_;	749	my ($pl, $path) = @_;
706		750
707	for my $o (all_objects $pl->ob) {	751	for my $o (all_objects $pl->ob) {
…		…
713	}	757	}
714	},	758	},
715	;	759	;
716		760
717	#############################################################################	761	#############################################################################
718	# core extensions - in perl	762
		763	=head2 CORE EXTENSIONS
		764
		765	Functions and methods that extend core crossfire objects.
		766
		767	=over 4
719		768
720	=item cf::player::exists $login	769	=item cf::player::exists $login
721		770
722	Returns true when the given account exists.	771	Returns true when the given account exists.
723		772
…		…
726	sub cf::player::exists($) {	775	sub cf::player::exists($) {
727	cf::player::find $_[0]	776	cf::player::find $_[0]
728	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;
729	}	778	}
730		779
731	=item $player->reply ($npc, $msg[, $flags])	780	=item $object->reply ($npc, $msg[, $flags])
732		781
733	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>
734	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
735	dialogue with the given NPC character.	784	dialogue with the given NPC character.
736		785
…		…
763	$msg{msgid} = $id;	812	$msg{msgid} = $id;
764		813
765	$self->send ("ext " . to_json \%msg);	814	$self->send ("ext " . to_json \%msg);
766	}	815	}
767		816
		817	=back
		818
		819	=cut
		820
768	#############################################################################	821	#############################################################################
769	# 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
770		832
771	our $safe = new Safe "safe";	833	our $safe = new Safe "safe";
772	our $safe_hole = new Safe::Hole;	834	our $safe_hole = new Safe::Hole;
773		835
774	$SIG{FPE} = 'IGNORE';	836	$SIG{FPE} = 'IGNORE';
775		837
776	$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));
777		839
778	# 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
779		851
780	for (	852	for (
781	["cf::object" => qw(contr pay_amount pay_player)],	853	["cf::object" => qw(contr pay_amount pay_player)],
782	["cf::object::player" => qw(player)],	854	["cf::object::player" => qw(player)],
783	["cf::player" => qw(peaceful)],	855	["cf::player" => qw(peaceful)],
…		…
786	my ($pkg, @funs) = @$_;	858	my ($pkg, @funs) = @$_;
787	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	859	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
788	for @funs;	860	for @funs;
789	}	861	}
790		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
791	sub safe_eval($;@) {	875	sub safe_eval($;@) {
792	my ($code, %vars) = @_;	876	my ($code, %vars) = @_;
793		877
794	my $qcode = $code;	878	my $qcode = $code;
795	$qcode =~ s/"/‟/g; # not allowed in #line filenames	879	$qcode =~ s/"/‟/g; # not allowed in #line filenames
…		…
817	}	901	}
818		902
819	wantarray ? @res : $res[0]	903	wantarray ? @res : $res[0]
820	}	904	}
821		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
822	sub register_script_function {	921	sub register_script_function {
823	my ($fun, $cb) = @_;	922	my ($fun, $cb) = @_;
824		923
825	no strict 'refs';	924	no strict 'refs';
826	*{"safe::$fun"} = $safe_hole->wrap ($cb);	925	*{"safe::$fun"} = $safe_hole->wrap ($cb);
827	}	926	}
828		927
		928	=back
		929
		930	=cut
		931
		932	#############################################################################
		933
		934	=head2 EXTENSION DATABASE SUPPORT
		935
		936	Crossfire maintains a very simple database for extension use. It can
		937	currently store anything that can be serialised using Storable, which
		938	excludes objects.
		939
		940	The parameter C<$family> should best start with the name of the extension
		941	using it, it should be unique.
		942
		943	=over 4
		944
		945	=item $hashref = cf::db_get $family
		946
		947	Return a hashref for use by the extension C<$family>, which can be
		948	modified. After modifications, you have to call C<cf::db_dirty> or
		949	C<cf::db_sync>.
		950
		951	=item $value = cf::db_get $family => $key
		952
		953	Returns a single value from the database
		954
		955	=item cf::db_put $family => $hashref
		956
		957	Stores the given family hashref into the database. Updates are delayed, if
		958	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		959
		960	=item cf::db_put $family => $key => $value
		961
		962	Stores the given C<$value> in the family hash. Updates are delayed, if you
		963	want the data to be synced to disk immediately, use C<cf::db_sync>.
		964
		965	=item cf::db_dirty
		966
		967	Marks the database as dirty, to be updated at a later time.
		968
		969	=item cf::db_sync
		970
		971	Immediately write the database to disk I<if it is dirty>.
		972
		973	=cut
		974
		975	our $DB;
		976
		977	{
		978	my $path = cf::localdir . "/database.pst";
		979
		980	sub db_load() {
		981	warn "loading database $path\n";#d# remove later
		982	$DB = stat $path ? Storable::retrieve $path : { };
		983	}
		984
		985	my $pid;
		986
		987	sub db_save() {
		988	warn "saving database $path\n";#d# remove later
		989	waitpid $pid, 0 if $pid;
		990	if (0 == ($pid = fork)) {
		991	$DB->{_meta}{version} = 1;
		992	Storable::nstore $DB, "$path~";
		993	rename "$path~", $path;
		994	cf::_exit 0 if defined $pid;
		995	}
		996	}
		997
		998	my $dirty;
		999
		1000	sub db_sync() {
		1001	db_save if $dirty;
		1002	undef $dirty;
		1003	}
		1004
		1005	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {
		1006	db_sync;
		1007	});
		1008
		1009	sub db_dirty() {
		1010	$dirty = 1;
		1011	$idle->start;
		1012	}
		1013
		1014	sub db_get($;$) {
		1015	@_ >= 2
		1016	? $DB->{$_[0]}{$_[1]}
		1017	: ($DB->{$_[0]} \|\|= { })
		1018	}
		1019
		1020	sub db_put($$;$) {
		1021	if (@_ >= 3) {
		1022	$DB->{$_[0]}{$_[1]} = $_[2];
		1023	} else {
		1024	$DB->{$_[0]} = $_[1];
		1025	}
		1026	db_dirty;
		1027	}
		1028
		1029	attach_global
		1030	prio => 10000,
		1031	on_cleanup => sub {
		1032	db_sync;
		1033	},
		1034	;
		1035	}
		1036
829	#############################################################################	1037	#############################################################################
830	# the server's main()	1038	# the server's main()
831		1039
		1040	sub cfg_load {
		1041	open my $fh, "<:utf8", cf::confdir . "/config"
		1042	or return;
		1043
		1044	local $/;
		1045	*CFG = YAML::Syck::Load <$fh>;
		1046	}
		1047
832	sub main {	1048	sub main {
		1049	cfg_load;
		1050	db_load;
		1051	load_extensions;
833	Event::loop;	1052	Event::loop;
834	}	1053	}
835		1054
836	#############################################################################	1055	#############################################################################
837	# initialisation	1056	# initialisation
838		1057
		1058	sub _perl_reload(&) {
		1059	my ($msg) = @_;
		1060
		1061	$msg->("reloading...");
		1062
		1063	eval {
		1064	# cancel all watchers
		1065	$_->cancel for Event::all_watchers;
		1066
		1067	# unload all extensions
		1068	for (@exts) {
		1069	$msg->("unloading <$_>");
		1070	unload_extension $_;
		1071	}
		1072
		1073	# unload all modules loaded from $LIBDIR
		1074	while (my ($k, $v) = each %INC) {
		1075	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		1076
		1077	$msg->("removing <$k>");
		1078	delete $INC{$k};
		1079
		1080	$k =~ s/\.pm$//;
		1081	$k =~ s/\//::/g;
		1082
		1083	if (my $cb = $k->can ("unload_module")) {
		1084	$cb->();
		1085	}
		1086
		1087	Symbol::delete_package $k;
		1088	}
		1089
		1090	# sync database to disk
		1091	cf::db_sync;
		1092
		1093	# get rid of safe::, as good as possible
		1094	Symbol::delete_package "safe::$_"
		1095	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
		1096
		1097	# remove register_script_function callbacks
		1098	# TODO
		1099
		1100	# unload cf.pm "a bit"
		1101	delete $INC{"cf.pm"};
		1102
		1103	# don't, removes xs symbols, too,
		1104	# and global variables created in xs
		1105	#Symbol::delete_package __PACKAGE__;
		1106
		1107	# reload cf.pm
		1108	$msg->("reloading cf.pm");
		1109	require cf;
		1110
		1111	# load config and database again
		1112	cf::cfg_load;
		1113	cf::db_load;
		1114
		1115	# load extensions
		1116	$msg->("load extensions");
		1117	cf::load_extensions;
		1118
		1119	# reattach attachments to objects
		1120	$msg->("reattach");
		1121	_global_reattach;
		1122	};
		1123	$msg->($@) if $@;
		1124
		1125	$msg->("reloaded");
		1126	};
		1127
		1128	sub perl_reload() {
		1129	_perl_reload {
		1130	warn $_[0];
		1131	print "$_[0]\n";
		1132	};
		1133	}
		1134
		1135	register_command "perl-reload", 0, sub {
		1136	my ($who, $arg) = @_;
		1137
		1138	if ($who->flag (FLAG_WIZ)) {
		1139	_perl_reload {
		1140	warn $_[0];
		1141	$who->message ($_[0]);
		1142	};
		1143	}
		1144	};
		1145
839	register "<global>", __PACKAGE__;	1146	register "<global>", __PACKAGE__;
840		1147
841	unshift @INC, $LIBDIR;	1148	unshift @INC, $LIBDIR;
842		1149
843	load_extensions;
844
845	$TICK_WATCHER = Event->timer (	1150	$TICK_WATCHER = Event->timer (
846	prio => 1,	1151	prio => 1,
		1152	async => 1,
847	at => $NEXT_TICK \|\| 1,	1153	at => $NEXT_TICK \|\| 1,
848	cb => sub {	1154	cb => sub {
849	cf::server_tick; # one server iteration	1155	cf::server_tick; # one server iteration
850		1156
851	my $NOW = Event::time;	1157	my $NOW = Event::time;
852	$NEXT_TICK += $TICK;	1158	$NEXT_TICK += $TICK;
853		1159
854	# if we are delayed by four ticks, skip them all	1160	# if we are delayed by four ticks or more, skip them all
855	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1161	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
856		1162
857	$TICK_WATCHER->at ($NEXT_TICK);	1163	$TICK_WATCHER->at ($NEXT_TICK);
858	$TICK_WATCHER->start;	1164	$TICK_WATCHER->start;
859	},	1165	},
860	);	1166	);
861		1167
862	_reload_2;	1168	eval { IO::AIO::max_poll_time $TICK * 0.2 }; #d# remove eval after restart
		1169
		1170	Event->io (fd => IO::AIO::poll_fileno,
		1171	poll => 'r',
		1172	prio => 5,
		1173	cb => \&IO::AIO::poll_cb);
863		1174
864	1	1175	1
865		1176

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.49 by root, Sun Aug 27 17:59:26 2006 UTC vs. Revision 1.78 by root, Tue Nov 7 00:15:27 2006 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.49 by root, Sun Aug 27 17:59:26 2006 UTC vs.
Revision 1.78 by root, Tue Nov 7 00:15:27 2006 UTC