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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.55 by root, Tue Aug 29 17:32:19 2006 UTC vs.
Revision 1.69 by root, Mon Sep 18 01:10:35 2006 UTC

… …
11use Event; 11use Event;
12$Event::Eval = 1; # no idea why this is required, but it is 12$Event::Eval = 1; # no idea why this is required, but it is
13 13
14use strict; 14use strict;
15 15
16_reload_1; 16_init_vars;
17 17
18our %COMMAND = (); 18our %COMMAND = ();
19our @EVENT; 19our @EVENT;
20our %PROP_TYPE;
21our %PROP_IDX;
22our $LIBDIR = maps_directory "perl"; 20our $LIBDIR = maps_directory "perl";
23 21
24our $TICK = MAX_TIME * 1e-6; 22our $TICK = MAX_TIME * 1e-6;
25our $TICK_WATCHER; 23our $TICK_WATCHER;
26our $NEXT_TICK; 24our $NEXT_TICK;
… …
33 31
34 print STDERR "cfperl: $msg"; 32 print STDERR "cfperl: $msg";
35 LOG llevError, "cfperl: $msg"; 33 LOG llevError, "cfperl: $msg";
36 }; 34 };
37} 35}
38
39my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
40
41# generate property mutators
42sub prop_gen {
43 my ($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
66prop_gen OBJECT_PROP => "cf::object";
67# CFAPI_OBJECT_ANIMATION?
68prop_gen PLAYER_PROP => "cf::object::player";
69
70prop_gen MAP_PROP => "cf::map";
71prop_gen ARCH_PROP => "cf::arch";
72 36
73@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 37@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74 38
75# we bless all objects into (empty) derived classes to force a method lookup 39# we bless all objects into (empty) derived classes to force a method lookup
76# within the Safe compartment. 40# within the Safe compartment.
… …
389 for (@$callbacks) { 353 for (@$callbacks) {
390 eval { &{$_->[1]} }; 354 eval { &{$_->[1]} };
391 355
392 if ($@) { 356 if ($@) {
393 warn "$@"; 357 warn "$@";
394 warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n"; 358 warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
395 override; 359 override;
396 } 360 }
397 361
398 return 1 if $override; 362 return 1 if $override;
399 } 363 }
… …
476 } 440 }
477 } 441 }
478} 442}
479 443
480sub object_freezer_save { 444sub object_freezer_save {
481 my ($filename, $objs) = @_; 445 my ($filename, $rdata, $objs) = @_;
482 446
483 if (@$objs) { 447 if (length $$rdata) {
448 warn sprintf "saving %s (%d,%d)\n",
449 $filename, length $$rdata, scalar @$objs;
450
484 open my $fh, ">:raw", "$filename.pst~"; 451 if (open my $fh, ">:raw", "$filename~") {
452 chmod SAVE_MODE, $fh;
453 syswrite $fh, $$rdata;
454 close $fh;
455
456 if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
457 chmod SAVE_MODE, $fh;
485 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs }; 458 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
486 close $fh; 459 close $fh;
487 chmod SAVE_MODE, "$filename.pst~";
488 rename "$filename.pst~", "$filename.pst"; 460 rename "$filename.pst~", "$filename.pst";
461 } else {
462 unlink "$filename.pst";
463 }
464
465 rename "$filename~", $filename;
466 } else {
467 warn "FATAL: $filename~: $!\n";
468 }
489 } else { 469 } else {
470 unlink $filename;
490 unlink "$filename.pst"; 471 unlink "$filename.pst";
491 } 472 }
492
493 chmod SAVE_MODE, "$filename~";
494 rename "$filename~", $filename;
495} 473}
496 474
497sub object_thawer_load { 475sub object_thawer_load {
498 my ($filename) = @_; 476 my ($filename) = @_;
499 477
478 local $/;
479
480 my $av;
481
482 #TODO: use sysread etc.
483 if (open my $data, "<:raw:perlio", $filename) {
484 $data = <$data>;
500 open my $fh, "<:raw:perlio", "$filename.pst" 485 if (open my $pst, "<:raw:perlio", "$filename.pst") {
501 or return; 486 $av = eval { (Storable::thaw <$pst>)->{objs} };
487 }
488 return ($data, $av);
489 }
502 490
503 eval { local $/; (Storable::thaw <$fh>)->{objs} } 491 ()
504} 492}
505 493
506attach_to_objects 494attach_to_objects
507 prio => -1000000, 495 prio => -1000000,
508 on_clone => sub { 496 on_clone => sub {
… …
654 load_extension $ext; 642 load_extension $ext;
655 1 643 1
656 } or warn "$ext not loaded: $@"; 644 } or warn "$ext not loaded: $@";
657 } 645 }
658} 646}
659
660sub _perl_reload(&) {
661 my ($msg) = @_;
662
663 $msg->("reloading...");
664
665 eval {
666 # 1. cancel all watchers
667 $_->cancel for Event::all_watchers;
668
669 # 2. unload all extensions
670 for (@exts) {
671 $msg->("unloading <$_>");
672 unload_extension $_;
673 }
674
675 # 3. unload all modules loaded from $LIBDIR
676 while (my ($k, $v) = each %INC) {
677 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
678
679 $msg->("removing <$k>");
680 delete $INC{$k};
681
682 $k =~ s/\.pm$//;
683 $k =~ s/\//::/g;
684
685 if (my $cb = $k->can ("unload_module")) {
686 $cb->();
687 }
688
689 Symbol::delete_package $k;
690 }
691
692 # 4. get rid of safe::, as good as possible
693 Symbol::delete_package "safe::$_"
694 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
695
696 # 5. remove register_script_function callbacks
697 # TODO
698
699 # 6. unload cf.pm "a bit"
700 delete $INC{"cf.pm"};
701
702 # don't, removes xs symbols, too,
703 # and global variables created in xs
704 #Symbol::delete_package __PACKAGE__;
705
706 # 7. reload cf.pm
707 $msg->("reloading cf.pm");
708 require cf;
709 };
710 $msg->($@) if $@;
711
712 $msg->("reloaded");
713};
714
715sub perl_reload() {
716 _perl_reload {
717 warn $_[0];
718 print "$_[0]\n";
719 };
720}
721
722register_command "perl-reload", 0, sub {
723 my ($who, $arg) = @_;
724
725 if ($who->flag (FLAG_WIZ)) {
726 _perl_reload {
727 warn $_[0];
728 $who->message ($_[0]);
729 };
730 }
731};
732 647
733############################################################################# 648#############################################################################
734# extcmd framework, basically convert ext <msg> 649# extcmd framework, basically convert ext <msg>
735# into pkg::->on_extcmd_arg1 (...) while shortcutting a few 650# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
736 651
… …
764 defined $path or return; 679 defined $path or return;
765 680
766 unlink "$path.pst"; 681 unlink "$path.pst";
767}; 682};
768 683
769# old style persistent data, TODO: remove #d#
770*cf::mapsupport::on_swapin =
771*cf::mapsupport::on_load = sub {
772 my ($map) = @_;
773
774 my $path = $map->tmpname;
775 $path = $map->path unless defined $path;
776
777 open my $fh, "<:raw", "$path.cfperl"
778 or return; # no perl data
779
780 my $data = Storable::thaw do { local $/; <$fh> };
781
782 $data->{version} <= 1
783 or return; # too new
784
785 $map->_set_obs ($data->{obs});
786 $map->invoke (EVENT_MAP_UPGRADE);
787};
788
789attach_to_maps prio => -10000, package => cf::mapsupport::; 684attach_to_maps prio => -10000, package => cf::mapsupport::;
790 685
791############################################################################# 686#############################################################################
792# load/save perl data associated with player->ob objects 687# load/save perl data associated with player->ob objects
793 688
794sub all_objects(@) { 689sub all_objects(@) {
795 @_, map all_objects ($_->inv), @_ 690 @_, map all_objects ($_->inv), @_
796} 691}
797 692
693# TODO: compatibility cruft, remove when no longer needed
798attach_to_players 694attach_to_players
799 on_load => sub { 695 on_load => sub {
800 my ($pl, $path) = @_; 696 my ($pl, $path) = @_;
801 697
802 for my $o (all_objects $pl->ob) { 698 for my $o (all_objects $pl->ob) {
… …
912 } 808 }
913 809
914 wantarray ? @res : $res[0] 810 wantarray ? @res : $res[0]
915} 811}
916 812
813=item cf::register_script_function $function => $cb
814
815Register a function that can be called from within map/npc scripts. The
816function should be reasonably secure and should be put into a package name
817like the extension.
818
819Example: register a function that gets called whenever a map script calls
820C<rent::overview>, as used by the C<rent> extension.
821
822 cf::register_script_function "rent::overview" => sub {
823 ...
824 };
825
826=cut
827
917sub register_script_function { 828sub register_script_function {
918 my ($fun, $cb) = @_; 829 my ($fun, $cb) = @_;
919 830
920 no strict 'refs'; 831 no strict 'refs';
921 *{"safe::$fun"} = $safe_hole->wrap ($cb); 832 *{"safe::$fun"} = $safe_hole->wrap ($cb);
922} 833}
923 834
924############################################################################# 835#############################################################################
836
837=head2 EXTENSION DATABASE SUPPORT
838
839Crossfire maintains a very simple database for extension use. It can
840currently store anything that can be serialised using Storable, which
841excludes objects.
842
843The parameter C<$family> should best start with the name of the extension
844using it, it should be unique.
845
846=over 4
847
848=item $hashref = cf::db_get $family
849
850Return a hashref for use by the extension C<$family>, which can be
851modified. After modifications, you have to call C<cf::db_dirty> or
852C<cf::db_sync>.
853
854=item $value = cf::db_get $family => $key
855
856Returns a single value from the database
857
858=item cf::db_put $family => $hashref
859
860Stores the given family hashref into the database. Updates are delayed, if
861you want the data to be synced to disk immediately, use C<cf::db_sync>.
862
863=item cf::db_put $family => $key => $value
864
865Stores the given C<$value> in the family hash. Updates are delayed, if you
866want the data to be synced to disk immediately, use C<cf::db_sync>.
867
868=item cf::db_dirty
869
870Marks the database as dirty, to be updated at a later time.
871
872=item cf::db_sync
873
874Immediately write the database to disk I<if it is dirty>.
875
876=cut
877
878{
879 my $db;
880 my $path = cf::localdir . "/database.pst";
881
882 sub db_load() {
883 warn "loading database $path\n";#d# remove later
884 $db = stat $path ? Storable::retrieve $path : { };
885 }
886
887 my $pid;
888
889 sub db_save() {
890 warn "saving database $path\n";#d# remove later
891 waitpid $pid, 0 if $pid;
892 if (0 == ($pid = fork)) {
893 $db->{_meta}{version} = 1;
894 Storable::nstore $db, "$path~";
895 rename "$path~", $path;
896 cf::_exit 0 if defined $pid;
897 }
898 }
899
900 my $dirty;
901
902 sub db_sync() {
903 db_save if $dirty;
904 undef $dirty;
905 }
906
907 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {
908 db_sync;
909 });
910
911 sub db_dirty() {
912 $dirty = 1;
913 $idle->start;
914 }
915
916 sub db_get($;$) {
917 @_ >= 2
918 ? $db->{$_[0]}{$_[1]}
919 : ($db->{$_[0]} ||= { })
920 }
921
922 sub db_put($$;$) {
923 if (@_ >= 3) {
924 $db->{$_[0]}{$_[1]} = $_[2];
925 } else {
926 $db->{$_[0]} = $_[1];
927 }
928 db_dirty;
929 }
930
931 attach_global
932 prio => 10000,
933 on_cleanup => sub {
934 db_sync;
935 },
936 ;
937}
938
939#############################################################################
925# the server's main() 940# the server's main()
926 941
927sub main { 942sub main {
943 db_load;
944 load_extensions;
928 Event::loop; 945 Event::loop;
929} 946}
930 947
931############################################################################# 948#############################################################################
932# initialisation 949# initialisation
933 950
951sub _perl_reload(&) {
952 my ($msg) = @_;
953
954 $msg->("reloading...");
955
956 eval {
957 # cancel all watchers
958 $_->cancel for Event::all_watchers;
959
960 # unload all extensions
961 for (@exts) {
962 $msg->("unloading <$_>");
963 unload_extension $_;
964 }
965
966 # unload all modules loaded from $LIBDIR
967 while (my ($k, $v) = each %INC) {
968 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
969
970 $msg->("removing <$k>");
971 delete $INC{$k};
972
973 $k =~ s/\.pm$//;
974 $k =~ s/\//::/g;
975
976 if (my $cb = $k->can ("unload_module")) {
977 $cb->();
978 }
979
980 Symbol::delete_package $k;
981 }
982
983 # sync database to disk
984 cf::db_sync;
985
986 # get rid of safe::, as good as possible
987 Symbol::delete_package "safe::$_"
988 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
989
990 # remove register_script_function callbacks
991 # TODO
992
993 # unload cf.pm "a bit"
994 delete $INC{"cf.pm"};
995
996 # don't, removes xs symbols, too,
997 # and global variables created in xs
998 #Symbol::delete_package __PACKAGE__;
999
1000 # reload cf.pm
1001 $msg->("reloading cf.pm");
1002 require cf;
1003
1004 # load database again
1005 cf::db_load;
1006
1007 # load extensions
1008 $msg->("load extensions");
1009 cf::load_extensions;
1010
1011 # reattach attachments to objects
1012 $msg->("reattach");
1013 _global_reattach;
1014 };
1015 $msg->($@) if $@;
1016
1017 $msg->("reloaded");
1018};
1019
1020sub perl_reload() {
1021 _perl_reload {
1022 warn $_[0];
1023 print "$_[0]\n";
1024 };
1025}
1026
1027register_command "perl-reload", 0, sub {
1028 my ($who, $arg) = @_;
1029
1030 if ($who->flag (FLAG_WIZ)) {
1031 _perl_reload {
1032 warn $_[0];
1033 $who->message ($_[0]);
1034 };
1035 }
1036};
1037
934register "<global>", __PACKAGE__; 1038register "<global>", __PACKAGE__;
935 1039
936unshift @INC, $LIBDIR; 1040unshift @INC, $LIBDIR;
937
938load_extensions;
939 1041
940$TICK_WATCHER = Event->timer ( 1042$TICK_WATCHER = Event->timer (
941 prio => 1, 1043 prio => 1,
942 at => $NEXT_TICK || 1, 1044 at => $NEXT_TICK || 1,
943 cb => sub { 1045 cb => sub {
… …
952 $TICK_WATCHER->at ($NEXT_TICK); 1054 $TICK_WATCHER->at ($NEXT_TICK);
953 $TICK_WATCHER->start; 1055 $TICK_WATCHER->start;
954 }, 1056 },
955); 1057);
956 1058
957_reload_2;
958
9591 10591
960 1060

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