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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.51 by root, Mon Aug 28 14:05:24 2006 UTC vs.
Revision 1.83 by root, Mon Dec 11 01:30:41 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;#d#
		34	our $UPTIME;
		35	$UPTIME \|\|= $uptime;#d#
		36	$UPTIME \|\|= time;
		37
		38	#############################################################################
		39
		40	=head2 GLOBAL VARIABLES
		41
		42	=over 4
		43
		44	=item $cf::UPTIME
		45
		46	The timestamp of the server start (so not actually an uptime).
		47
		48	=item $cf::LIBDIR
		49
		50	The perl library directory, where extensions and cf-specific modules can
		51	be found. It will be added to C<@INC> automatically.
		52
		53	=item $cf::TICK
		54
		55	The interval between server ticks, in seconds.
		56
		57	=item %cf::CFG
		58
		59	Configuration for the server, loaded from C</etc/crossfire/config>, or
		60	from wherever your confdir points to.
		61
		62	=back
		63
		64	=cut
27		65
28	BEGIN {	66	BEGIN {
29	*CORE::GLOBAL::warn = sub {	67	*CORE::GLOBAL::warn = sub {
30	my $msg = join "", @_;	68	my $msg = join "", @_;
31	$msg .= "\n"	69	$msg .= "\n"
…		…
34	print STDERR "cfperl: $msg";	72	print STDERR "cfperl: $msg";
35	LOG llevError, "cfperl: $msg";	73	LOG llevError, "cfperl: $msg";
36	};	74	};
37	}	75	}
38		76
39	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
40
41	# generate property mutators
42	sub prop_gen {
43	my ($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';	77	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74		78
75	# we bless all objects into (empty) derived classes to force a method lookup	79	# we bless all objects into (empty) derived classes to force a method lookup
76	# within the Safe compartment.	80	# 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)) {	81	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {
…		…
87	my @exts;	91	my @exts;
88	my @hook;	92	my @hook;
89	my %command;	93	my %command;
90	my %extcmd;	94	my %extcmd;
91		95
92	#############################################################################	96	=head2 UTILITY FUNCTIONS
93	# utility functions	97
		98	=over 4
		99
		100	=cut
94		101
95	use JSON::Syck (); # TODO# replace by JSON::PC once working	102	use JSON::Syck (); # TODO# replace by JSON::PC once working
		103
		104	=item $ref = cf::from_json $json
		105
		106	Converts a JSON string into the corresponding perl data structure.
		107
		108	=cut
96		109
97	sub from_json($) {	110	sub from_json($) {
98	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	111	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99	JSON::Syck::Load $_[0]	112	JSON::Syck::Load $_[0]
100	}	113	}
101		114
		115	=item $json = cf::to_json $ref
		116
		117	Converts a perl data structure into its JSON representation.
		118
		119	=cut
		120
102	sub to_json($) {	121	sub to_json($) {
103	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	122	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104	JSON::Syck::Dump $_[0]	123	JSON::Syck::Dump $_[0]
105	}	124	}
106		125
		126	=back
		127
		128	=cut
		129
107	#############################################################################	130	#############################################################################
108	# "new" plug-in system	131
		132	=head2 EVENTS AND OBJECT ATTACHMENTS
		133
		134	=over 4
109		135
110	=item $object->attach ($attachment, key => $value...)	136	=item $object->attach ($attachment, key => $value...)
111		137
		138	=item $object->detach ($attachment)
		139
112	Attach a pre-registered attachment to an object.	140	Attach/detach a pre-registered attachment to an object.
113		141
114	=item $player->attach ($attachment, key => $value...)	142	=item $player->attach ($attachment, key => $value...)
115		143
		144	=item $player->detach ($attachment)
		145
116	Attach a pre-registered attachment to a player.	146	Attach/detach a pre-registered attachment to a player.
117		147
118	=item $map->attach ($attachment, key => $value...) # not yet persistent	148	=item $map->attach ($attachment, key => $value...)
119		149
		150	=item $map->detach ($attachment)
		151
120	Attach a pre-registered attachment to a map.	152	Attach/detach a pre-registered attachment to a map.
		153
		154	=item $bool = $object->attached ($name)
		155
		156	=item $bool = $player->attached ($name)
		157
		158	=item $bool = $map->attached ($name)
		159
		160	Checks wether the named attachment is currently attached to the object.
121		161
122	=item cf::attach_global ...	162	=item cf::attach_global ...
123		163
124	Attach handlers for global events.	164	Attach handlers for global events.
125		165
…		…
173	=item cf::attach_to_maps ...	213	=item cf::attach_to_maps ...
174		214
175	Attach handlers to all maps.	215	Attach handlers to all maps.
176		216
177	=item cf:register_attachment $name, ...	217	=item cf:register_attachment $name, ...
		218
		219	Register an attachment by name through which objects can refer to this
		220	attachment.
		221
		222	=item cf:register_player_attachment $name, ...
		223
		224	Register an attachment by name through which players can refer to this
		225	attachment.
		226
		227	=item cf:register_map_attachment $name, ...
		228
		229	Register an attachment by name through which maps can refer to this
		230	attachment.
178		231
179	=cut	232	=cut
180		233
181	# the following variables are defined in .xs and must not be re-created	234	# the following variables are defined in .xs and must not be re-created
182	our @CB_GLOBAL = (); # registry for all global events	235	our @CB_GLOBAL = (); # registry for all global events
…		…
247	}	300	}
248		301
249	sub _attach_attachment {	302	sub _attach_attachment {
250	my ($obj, $name, %arg) = @_;	303	my ($obj, $name, %arg) = @_;
251		304
		305	return if exists $obj->{_attachment}{$name};
		306
252	my $res;	307	my $res;
253		308
254	if (my $attach = $attachment{$name}) {	309	if (my $attach = $attachment{$name}) {
255	my $registry = $obj->registry;	310	my $registry = $obj->registry;
256		311
…		…
268		323
269	$res->{attachment} = $name;	324	$res->{attachment} = $name;
270	$res	325	$res
271	}	326	}
272		327
273	sub cf::object::attach {	328	*cf::object::attach =
		329	*cf::player::attach =
		330	*cf::map::attach = sub {
274	my ($obj, $name, %arg) = @_;	331	my ($obj, $name, %arg) = @_;
275		332
276	_attach_attachment $obj, $name, %arg;	333	_attach_attachment $obj, $name, %arg;
277	}	334	};
278		335
		336	# all those should be optimised
		337	*cf::object::detach =
279	sub cf::player::attach {	338	*cf::player::detach =
		339	*cf::map::detach = sub {
280	my ($obj, $name, %arg) = @_;	340	my ($obj, $name) = @_;
281		341
282	_attach_attachment KLASS_PLAYER, $obj, $name, %arg;	342	delete $obj->{_attachment}{$name};
283	}	343	reattach ($obj);
		344	};
284		345
285	sub cf::map::attach {	346	*cf::object::attached =
		347	*cf::player::attached =
		348	*cf::map::attached = sub {
286	my ($obj, $name, %arg) = @_;	349	my ($obj, $name) = @_;
287		350
288	_attach_attachment KLASS_MAP, $obj, $name, %arg;	351	exists $obj->{_attachment}{$name}
289	}	352	};
290		353
291	sub attach_global {	354	sub attach_global {
292	_attach @CB_GLOBAL, KLASS_GLOBAL, @_	355	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
293	}	356	}
294		357
…		…
315	my $name = shift;	378	my $name = shift;
316		379
317	$attachment{$name} = [[KLASS_OBJECT, @_]];	380	$attachment{$name} = [[KLASS_OBJECT, @_]];
318	}	381	}
319		382
		383	sub register_player_attachment {
		384	my $name = shift;
		385
		386	$attachment{$name} = [[KLASS_PLAYER, @_]];
		387	}
		388
		389	sub register_map_attachment {
		390	my $name = shift;
		391
		392	$attachment{$name} = [[KLASS_MAP, @_]];
		393	}
		394
320	our $override;	395	our $override;
321	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	396	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
322		397
323	sub override {	398	sub override {
324	$override = 1;	399	$override = 1;
…		…
336	for (@$callbacks) {	411	for (@$callbacks) {
337	eval { &{$_->[1]} };	412	eval { &{$_->[1]} };
338		413
339	if ($@) {	414	if ($@) {
340	warn "$@";	415	warn "$@";
341	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	416	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
342	override;	417	override;
343	}	418	}
344		419
345	return 1 if $override;	420	return 1 if $override;
346	}	421	}
347		422
348	0	423	0
349	}	424	}
		425
		426	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...
		427
		428	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
		429
		430	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
		431
		432	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
		433
		434	Generate a global/object/player/map-specific event with the given arguments.
		435
		436	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
		437	removed in future versions), and there is no public API to access override
		438	results (if you must, access C<@cf::invoke_results> directly).
		439
		440	=back
		441
		442	=cut
		443
		444	#############################################################################
		445
		446	=head2 METHODS VALID FOR ALL CORE OBJECTS
		447
		448	=over 4
		449
		450	=item $object->valid, $player->valid, $map->valid
		451
		452	Just because you have a perl object does not mean that the corresponding
		453	C-level object still exists. If you try to access an object that has no
		454	valid C counterpart anymore you get an exception at runtime. This method
		455	can be used to test for existence of the C object part without causing an
		456	exception.
		457
		458	=back
		459
		460	=cut
		461
		462	*cf::object::valid =
		463	*cf::player::valid =
		464	*cf::map::valid = \&cf::_valid;
350		465
351	#############################################################################	466	#############################################################################
352	# object support	467	# object support
353		468
354	sub instantiate {	469	sub instantiate {
…		…
383	}	498	}
384	}	499	}
385	}	500	}
386		501
387	sub object_freezer_save {	502	sub object_freezer_save {
388	my ($filename, $objs) = @_;	503	my ($filename, $rdata, $objs) = @_;
389		504
390	if (@$objs) {	505	if (length $$rdata) {
		506	warn sprintf "saving %s (%d,%d)\n",
		507	$filename, length $$rdata, scalar @$objs;
		508
391	open my $fh, ">:raw", "$filename.pst~";	509	if (open my $fh, ">:raw", "$filename~") {
		510	chmod SAVE_MODE, $fh;
		511	syswrite $fh, $$rdata;
		512	close $fh;
		513
		514	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
		515	chmod SAVE_MODE, $fh;
392	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	516	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
393	close $fh;	517	close $fh;
394	chmod SAVE_MODE, "$filename.pst~";
395	rename "$filename.pst~", "$filename.pst";	518	rename "$filename.pst~", "$filename.pst";
		519	} else {
		520	unlink "$filename.pst";
		521	}
		522
		523	rename "$filename~", $filename;
		524	} else {
		525	warn "FATAL: $filename~: $!\n";
		526	}
396	} else {	527	} else {
		528	unlink $filename;
397	unlink "$filename.pst";	529	unlink "$filename.pst";
398	}	530	}
		531	}
399		532
400	chmod SAVE_MODE, "$filename~";	533	sub object_freezer_as_string {
401	rename "$filename~", $filename;	534	my ($rdata, $objs) = @_;
		535
		536	use Data::Dumper;
		537
		538	$$rdata . Dumper $objs
402	}	539	}
403		540
404	sub object_thawer_load {	541	sub object_thawer_load {
405	my ($filename) = @_;	542	my ($filename) = @_;
406		543
		544	local $/;
		545
		546	my $av;
		547
		548	#TODO: use sysread etc.
		549	if (open my $data, "<:raw:perlio", $filename) {
		550	$data = <$data>;
407	open my $fh, "<:raw:perlio", "$filename.pst"	551	if (open my $pst, "<:raw:perlio", "$filename.pst") {
408	or return;	552	$av = eval { (Storable::thaw <$pst>)->{objs} };
		553	}
		554	return ($data, $av);
		555	}
409		556
410	eval { local $/; (Storable::thaw <$fh>)->{objs} }	557	()
411	}	558	}
412		559
413	attach_to_objects	560	attach_to_objects
414	prio => -1000000,	561	prio => -1000000,
415	on_clone => sub {	562	on_clone => sub {
…		…
500	. "#line 1 \"$path\"\n{\n"	647	. "#line 1 \"$path\"\n{\n"
501	. (do { local $/; <$fh> })	648	. (do { local $/; <$fh> })
502	. "\n};\n1";	649	. "\n};\n1";
503		650
504	eval $source	651	eval $source
505	or die "$path: $@";	652	or die $@ ? "$path: $@\n"
		653	: "extension disabled.\n";
506		654
507	push @exts, $pkg;	655	push @exts, $pkg;
508	$ext_pkg{$base} = $pkg;	656	$ext_pkg{$base} = $pkg;
509		657
510	# no strict 'refs';	658	# no strict 'refs';
…		…
561	load_extension $ext;	709	load_extension $ext;
562	1	710	1
563	} or warn "$ext not loaded: $@";	711	} or warn "$ext not loaded: $@";
564	}	712	}
565	}	713	}
566
567	sub _perl_reload(&) {
568	my ($msg) = @_;
569
570	$msg->("reloading...");
571
572	eval {
573	# 1. cancel all watchers
574	$_->cancel for Event::all_watchers;
575
576	# 2. unload all extensions
577	for (@exts) {
578	$msg->("unloading <$_>");
579	unload_extension $_;
580	}
581
582	# 3. unload all modules loaded from $LIBDIR
583	while (my ($k, $v) = each %INC) {
584	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
585
586	$msg->("removing <$k>");
587	delete $INC{$k};
588
589	$k =~ s/\.pm$//;
590	$k =~ s/\//::/g;
591
592	if (my $cb = $k->can ("unload_module")) {
593	$cb->();
594	}
595
596	Symbol::delete_package $k;
597	}
598
599	# 4. get rid of safe::, as good as possible
600	Symbol::delete_package "safe::$_"
601	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
602
603	# 5. remove register_script_function callbacks
604	# TODO
605
606	# 6. unload cf.pm "a bit"
607	delete $INC{"cf.pm"};
608
609	# don't, removes xs symbols, too,
610	# and global variables created in xs
611	#Symbol::delete_package __PACKAGE__;
612
613	# 7. reload cf.pm
614	$msg->("reloading cf.pm");
615	require cf;
616	};
617	$msg->($@) if $@;
618
619	$msg->("reloaded");
620	};
621
622	sub perl_reload() {
623	_perl_reload {
624	warn $_[0];
625	print "$_[0]\n";
626	};
627	}
628
629	register_command "perl-reload", 0, sub {
630	my ($who, $arg) = @_;
631
632	if ($who->flag (FLAG_WIZ)) {
633	_perl_reload {
634	warn $_[0];
635	$who->message ($_[0]);
636	};
637	}
638	};
639		714
640	#############################################################################	715	#############################################################################
641	# extcmd framework, basically convert ext <msg>	716	# extcmd framework, basically convert ext <msg>
642	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few	717	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
643		718
…		…
671	defined $path or return;	746	defined $path or return;
672		747
673	unlink "$path.pst";	748	unlink "$path.pst";
674	};	749	};
675		750
676	# old style persistent data, TODO: remove #d#
677	*cf::mapsupport::on_swapin =
678	*cf::mapsupport::on_load = sub {
679	my ($map) = @_;
680
681	my $path = $map->tmpname;
682	$path = $map->path unless defined $path;
683
684	open my $fh, "<:raw", "$path.cfperl"
685	or return; # no perl data
686
687	my $data = Storable::thaw do { local $/; <$fh> };
688
689	$data->{version} <= 1
690	or return; # too new
691
692	$map->_set_obs ($data->{obs});
693	$map->invoke (EVENT_MAP_UPGRADE);
694	};
695
696	attach_to_maps prio => -10000, package => cf::mapsupport::;	751	attach_to_maps prio => -10000, package => cf::mapsupport::;
697		752
698	#############################################################################	753	#############################################################################
699	# load/save perl data associated with player->ob objects	754	# load/save perl data associated with player->ob objects
700		755
701	sub all_objects(@) {	756	sub all_objects(@) {
702	@_, map all_objects ($_->inv), @_	757	@_, map all_objects ($_->inv), @_
703	}	758	}
704		759
		760	# TODO: compatibility cruft, remove when no longer needed
705	attach_to_players	761	attach_to_players
706	on_load => sub {	762	on_load => sub {
707	my ($pl, $path) = @_;	763	my ($pl, $path) = @_;
708		764
709	for my $o (all_objects $pl->ob) {	765	for my $o (all_objects $pl->ob) {
…		…
715	}	771	}
716	},	772	},
717	;	773	;
718		774
719	#############################################################################	775	#############################################################################
720	# core extensions - in perl	776
		777	=head2 CORE EXTENSIONS
		778
		779	Functions and methods that extend core crossfire objects.
		780
		781	=over 4
721		782
722	=item cf::player::exists $login	783	=item cf::player::exists $login
723		784
724	Returns true when the given account exists.	785	Returns true when the given account exists.
725		786
…		…
728	sub cf::player::exists($) {	789	sub cf::player::exists($) {
729	cf::player::find $_[0]	790	cf::player::find $_[0]
730	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	791	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
731	}	792	}
732		793
733	=item $player->reply ($npc, $msg[, $flags])	794	=item $player_object->reply ($npc, $msg[, $flags])
734		795
735	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
736	can be C<undef>. Does the right thing when the player is currently in a	797	can be C<undef>. Does the right thing when the player is currently in a
737	dialogue with the given NPC character.	798	dialogue with the given NPC character.
738		799
…		…
765	$msg{msgid} = $id;	826	$msg{msgid} = $id;
766		827
767	$self->send ("ext " . to_json \%msg);	828	$self->send ("ext " . to_json \%msg);
768	}	829	}
769		830
		831	=item $player_object->may ("access")
		832
		833	Returns wether the given player is authorized to access resource "access"
		834	(e.g. "command_wizcast").
		835
		836	=cut
		837
		838	sub cf::object::player::may {
		839	my ($self, $access) = @_;
		840
		841	$self->flag (cf::FLAG_WIZ) \|\|
		842	(ref $cf::CFG{"may_$access"}
		843	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		844	: $cf::CFG{"may_$access"})
		845	}
		846
		847	=cut
		848
770	#############################################################################	849	#############################################################################
771	# map scripting support	850
		851	=head2 SAFE SCRIPTING
		852
		853	Functions that provide a safe environment to compile and execute
		854	snippets of perl code without them endangering the safety of the server
		855	itself. Looping constructs, I/O operators and other built-in functionality
		856	is not available in the safe scripting environment, and the number of
		857	functions and methods that can be called is greatly reduced.
		858
		859	=cut
772		860
773	our $safe = new Safe "safe";	861	our $safe = new Safe "safe";
774	our $safe_hole = new Safe::Hole;	862	our $safe_hole = new Safe::Hole;
775		863
776	$SIG{FPE} = 'IGNORE';	864	$SIG{FPE} = 'IGNORE';
777		865
778	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	866	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
779		867
780	# here we export the classes and methods available to script code	868	# here we export the classes and methods available to script code
		869
		870	=pod
		871
		872	The following fucntions and emthods are available within a safe environment:
		873
		874	cf::object contr pay_amount pay_player
		875	cf::object::player player
		876	cf::player peaceful
		877
		878	=cut
781		879
782	for (	880	for (
783	["cf::object" => qw(contr pay_amount pay_player)],	881	["cf::object" => qw(contr pay_amount pay_player)],
784	["cf::object::player" => qw(player)],	882	["cf::object::player" => qw(player)],
785	["cf::player" => qw(peaceful)],	883	["cf::player" => qw(peaceful)],
…		…
788	my ($pkg, @funs) = @$_;	886	my ($pkg, @funs) = @$_;
789	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	887	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
790	for @funs;	888	for @funs;
791	}	889	}
792		890
		891	=over 4
		892
		893	=item @retval = safe_eval $code, [var => value, ...]
		894
		895	Compiled and executes the given perl code snippet. additional var/value
		896	pairs result in temporary local (my) scalar variables of the given name
		897	that are available in the code snippet. Example:
		898
		899	my $five = safe_eval '$first + $second', first => 1, second => 4;
		900
		901	=cut
		902
793	sub safe_eval($;@) {	903	sub safe_eval($;@) {
794	my ($code, %vars) = @_;	904	my ($code, %vars) = @_;
795		905
796	my $qcode = $code;	906	my $qcode = $code;
797	$qcode =~ s/"/‟/g; # not allowed in #line filenames	907	$qcode =~ s/"/‟/g; # not allowed in #line filenames
…		…
819	}	929	}
820		930
821	wantarray ? @res : $res[0]	931	wantarray ? @res : $res[0]
822	}	932	}
823		933
		934	=item cf::register_script_function $function => $cb
		935
		936	Register a function that can be called from within map/npc scripts. The
		937	function should be reasonably secure and should be put into a package name
		938	like the extension.
		939
		940	Example: register a function that gets called whenever a map script calls
		941	C<rent::overview>, as used by the C<rent> extension.
		942
		943	cf::register_script_function "rent::overview" => sub {
		944	...
		945	};
		946
		947	=cut
		948
824	sub register_script_function {	949	sub register_script_function {
825	my ($fun, $cb) = @_;	950	my ($fun, $cb) = @_;
826		951
827	no strict 'refs';	952	no strict 'refs';
828	*{"safe::$fun"} = $safe_hole->wrap ($cb);	953	*{"safe::$fun"} = $safe_hole->wrap ($cb);
829	}	954	}
830		955
		956	=back
		957
		958	=cut
		959
		960	#############################################################################
		961
		962	=head2 EXTENSION DATABASE SUPPORT
		963
		964	Crossfire maintains a very simple database for extension use. It can
		965	currently store anything that can be serialised using Storable, which
		966	excludes objects.
		967
		968	The parameter C<$family> should best start with the name of the extension
		969	using it, it should be unique.
		970
		971	=over 4
		972
		973	=item $hashref = cf::db_get $family
		974
		975	Return a hashref for use by the extension C<$family>, which can be
		976	modified. After modifications, you have to call C<cf::db_dirty> or
		977	C<cf::db_sync>.
		978
		979	=item $value = cf::db_get $family => $key
		980
		981	Returns a single value from the database
		982
		983	=item cf::db_put $family => $hashref
		984
		985	Stores the given family hashref into the database. Updates are delayed, if
		986	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		987
		988	=item cf::db_put $family => $key => $value
		989
		990	Stores the given C<$value> in the family hash. Updates are delayed, if you
		991	want the data to be synced to disk immediately, use C<cf::db_sync>.
		992
		993	=item cf::db_dirty
		994
		995	Marks the database as dirty, to be updated at a later time.
		996
		997	=item cf::db_sync
		998
		999	Immediately write the database to disk I<if it is dirty>.
		1000
		1001	=cut
		1002
		1003	our $DB;
		1004
		1005	{
		1006	my $path = cf::localdir . "/database.pst";
		1007
		1008	sub db_load() {
		1009	warn "loading database $path\n";#d# remove later
		1010	$DB = stat $path ? Storable::retrieve $path : { };
		1011	}
		1012
		1013	my $pid;
		1014
		1015	sub db_save() {
		1016	warn "saving database $path\n";#d# remove later
		1017	waitpid $pid, 0 if $pid;
		1018	if (0 == ($pid = fork)) {
		1019	$DB->{_meta}{version} = 1;
		1020	Storable::nstore $DB, "$path~";
		1021	rename "$path~", $path;
		1022	cf::_exit 0 if defined $pid;
		1023	}
		1024	}
		1025
		1026	my $dirty;
		1027
		1028	sub db_sync() {
		1029	db_save if $dirty;
		1030	undef $dirty;
		1031	}
		1032
		1033	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {
		1034	db_sync;
		1035	});
		1036
		1037	sub db_dirty() {
		1038	$dirty = 1;
		1039	$idle->start;
		1040	}
		1041
		1042	sub db_get($;$) {
		1043	@_ >= 2
		1044	? $DB->{$_[0]}{$_[1]}
		1045	: ($DB->{$_[0]} \|\|= { })
		1046	}
		1047
		1048	sub db_put($$;$) {
		1049	if (@_ >= 3) {
		1050	$DB->{$_[0]}{$_[1]} = $_[2];
		1051	} else {
		1052	$DB->{$_[0]} = $_[1];
		1053	}
		1054	db_dirty;
		1055	}
		1056
		1057	attach_global
		1058	prio => 10000,
		1059	on_cleanup => sub {
		1060	db_sync;
		1061	},
		1062	;
		1063	}
		1064
831	#############################################################################	1065	#############################################################################
832	# the server's main()	1066	# the server's main()
833		1067
		1068	sub cfg_load {
		1069	open my $fh, "<:utf8", cf::confdir . "/config"
		1070	or return;
		1071
		1072	local $/;
		1073	*CFG = YAML::Syck::Load <$fh>;
		1074	}
		1075
834	sub main {	1076	sub main {
		1077	cfg_load;
		1078	db_load;
		1079	load_extensions;
835	Event::loop;	1080	Event::loop;
836	}	1081	}
837		1082
838	#############################################################################	1083	#############################################################################
839	# initialisation	1084	# initialisation
840		1085
		1086	sub _perl_reload(&) {
		1087	my ($msg) = @_;
		1088
		1089	$msg->("reloading...");
		1090
		1091	eval {
		1092	# cancel all watchers
		1093	$_->cancel for Event::all_watchers;
		1094
		1095	# unload all extensions
		1096	for (@exts) {
		1097	$msg->("unloading <$_>");
		1098	unload_extension $_;
		1099	}
		1100
		1101	# unload all modules loaded from $LIBDIR
		1102	while (my ($k, $v) = each %INC) {
		1103	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		1104
		1105	$msg->("removing <$k>");
		1106	delete $INC{$k};
		1107
		1108	$k =~ s/\.pm$//;
		1109	$k =~ s/\//::/g;
		1110
		1111	if (my $cb = $k->can ("unload_module")) {
		1112	$cb->();
		1113	}
		1114
		1115	Symbol::delete_package $k;
		1116	}
		1117
		1118	# sync database to disk
		1119	cf::db_sync;
		1120
		1121	# get rid of safe::, as good as possible
		1122	Symbol::delete_package "safe::$_"
		1123	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
		1124
		1125	# remove register_script_function callbacks
		1126	# TODO
		1127
		1128	# unload cf.pm "a bit"
		1129	delete $INC{"cf.pm"};
		1130
		1131	# don't, removes xs symbols, too,
		1132	# and global variables created in xs
		1133	#Symbol::delete_package __PACKAGE__;
		1134
		1135	# reload cf.pm
		1136	$msg->("reloading cf.pm");
		1137	require cf;
		1138
		1139	# load config and database again
		1140	cf::cfg_load;
		1141	cf::db_load;
		1142
		1143	# load extensions
		1144	$msg->("load extensions");
		1145	cf::load_extensions;
		1146
		1147	# reattach attachments to objects
		1148	$msg->("reattach");
		1149	_global_reattach;
		1150	};
		1151	$msg->($@) if $@;
		1152
		1153	$msg->("reloaded");
		1154	};
		1155
		1156	sub perl_reload() {
		1157	_perl_reload {
		1158	warn $_[0];
		1159	print "$_[0]\n";
		1160	};
		1161	}
		1162
		1163	register_command "perl-reload", 0, sub {
		1164	my ($who, $arg) = @_;
		1165
		1166	if ($who->flag (FLAG_WIZ)) {
		1167	_perl_reload {
		1168	warn $_[0];
		1169	$who->message ($_[0]);
		1170	};
		1171	}
		1172	};
		1173
841	register "<global>", __PACKAGE__;	1174	register "<global>", __PACKAGE__;
842		1175
843	unshift @INC, $LIBDIR;	1176	unshift @INC, $LIBDIR;
844		1177
845	load_extensions;
846
847	$TICK_WATCHER = Event->timer (	1178	$TICK_WATCHER = Event->timer (
848	prio => 1,	1179	prio => 1,
		1180	async => 1,
849	at => $NEXT_TICK \|\| 1,	1181	at => $NEXT_TICK \|\| 1,
850	cb => sub {	1182	cb => sub {
851	cf::server_tick; # one server iteration	1183	cf::server_tick; # one server iteration
852		1184
853	my $NOW = Event::time;	1185	my $NOW = Event::time;
854	$NEXT_TICK += $TICK;	1186	$NEXT_TICK += $TICK;
855		1187
856	# if we are delayed by four ticks, skip them all	1188	# if we are delayed by four ticks or more, skip them all
857	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1189	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
858		1190
859	$TICK_WATCHER->at ($NEXT_TICK);	1191	$TICK_WATCHER->at ($NEXT_TICK);
860	$TICK_WATCHER->start;	1192	$TICK_WATCHER->start;
861	},	1193	},
862	);	1194	);
863		1195
864	_reload_2;	1196	IO::AIO::max_poll_time $TICK * 0.2;
		1197
		1198	Event->io (fd => IO::AIO::poll_fileno,
		1199	poll => 'r',
		1200	prio => 5,
		1201	cb => \&IO::AIO::poll_cb);
865		1202
866	1	1203	1
867		1204

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.51 by root, Mon Aug 28 14:05:24 2006 UTC vs. Revision 1.83 by root, Mon Dec 11 01:30:41 2006 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.51 by root, Mon Aug 28 14:05:24 2006 UTC vs.
Revision 1.83 by root, Mon Dec 11 01:30:41 2006 UTC