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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.63 by root, Fri Sep 8 17:41:41 2006 UTC vs.
Revision 1.68 by root, Tue Sep 12 23:45:16 2006 UTC

353 for (@$callbacks) { 353 for (@$callbacks) {
354 eval { &{$_->[1]} }; 354 eval { &{$_->[1]} };
355 355
356 if ($@) { 356 if ($@) {
357 warn "$@"; 357 warn "$@";
358 warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n"; 358 warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
359 override; 359 override;
360 } 360 }
361 361
362 return 1 if $override; 362 return 1 if $override;
363 } 363 }
642 load_extension $ext; 642 load_extension $ext;
643 1 643 1
644 } or warn "$ext not loaded: $@"; 644 } or warn "$ext not loaded: $@";
645 } 645 }
646} 646}
647
648sub _perl_reload(&) {
649 my ($msg) = @_;
650
651 $msg->("reloading...");
652
653 eval {
654 # 1. cancel all watchers
655 $_->cancel for Event::all_watchers;
656
657 # 2. unload all extensions
658 for (@exts) {
659 $msg->("unloading <$_>");
660 unload_extension $_;
661 }
662
663 # 3. unload all modules loaded from $LIBDIR
664 while (my ($k, $v) = each %INC) {
665 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
666
667 $msg->("removing <$k>");
668 delete $INC{$k};
669
670 $k =~ s/\.pm$//;
671 $k =~ s/\//::/g;
672
673 if (my $cb = $k->can ("unload_module")) {
674 $cb->();
675 }
676
677 Symbol::delete_package $k;
678 }
679
680 # 4. get rid of safe::, as good as possible
681 Symbol::delete_package "safe::$_"
682 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
683
684 # 5. remove register_script_function callbacks
685 # TODO
686
687 # 6. unload cf.pm "a bit"
688 delete $INC{"cf.pm"};
689
690 # don't, removes xs symbols, too,
691 # and global variables created in xs
692 #Symbol::delete_package __PACKAGE__;
693
694 # 7. reload cf.pm
695 $msg->("reloading cf.pm");
696 require cf;
697
698 $msg->("load extensions");
699 cf::load_extensions;
700
701 $msg->("reattach");
702 _global_reattach;
703 };
704 $msg->($@) if $@;
705
706 $msg->("reloaded");
707};
708
709sub perl_reload() {
710 _perl_reload {
711 warn $_[0];
712 print "$_[0]\n";
713 };
714}
715
716register_command "perl-reload", 0, sub {
717 my ($who, $arg) = @_;
718
719 if ($who->flag (FLAG_WIZ)) {
720 _perl_reload {
721 warn $_[0];
722 $who->message ($_[0]);
723 };
724 }
725};
726 647
727############################################################################# 648#############################################################################
728# extcmd framework, basically convert ext <msg> 649# extcmd framework, basically convert ext <msg>
729# into pkg::->on_extcmd_arg1 (...) while shortcutting a few 650# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
730 651
895 no strict 'refs'; 816 no strict 'refs';
896 *{"safe::$fun"} = $safe_hole->wrap ($cb); 817 *{"safe::$fun"} = $safe_hole->wrap ($cb);
897} 818}
898 819
899############################################################################# 820#############################################################################
821
822=head2 EXTENSION DATABASE SUPPORT
823
824Crossfire maintains a very simple database for extension use. It can
825currently store anything that can be serialised using Storable, which
826excludes objects.
827
828The parameter C<$family> should best start with the name of the extension
829using it, it should be unique.
830
831=over 4
832
833=item $hashref = cf::db_get $family
834
835Return a hashref for use by the extension C<$family>, which can be
836modified. After modifications, you have to call C<cf::db_dirty> or
837C<cf::db_sync>.
838
839=item $value = cf::db_get $family => $key
840
841Returns a single value from the database
842
843=item cf::db_put $family => $hashref
844
845Stores the given family hashref into the database. Updates are delayed, if
846you want the data to be synced to disk immediately, use C<cf::db_sync>.
847
848=item cf::db_put $family => $key => $value
849
850Stores the given C<$value> in the family hash. Updates are delayed, if you
851want the data to be synced to disk immediately, use C<cf::db_sync>.
852
853=item cf::db_dirty
854
855Marks the database as dirty, to be updated at a later time.
856
857=item cf::db_sync
858
859Immediately write the database to disk I<if it is dirty>.
860
861=cut
862
863{
864 my $db;
865 my $path = cf::localdir . "/database.pst";
866
867 sub db_load() {
868 warn "loading database $path\n";#d# remove later
869 $db = stat $path ? Storable::retrieve $path : { };
870 }
871
872 my $pid;
873
874 sub db_save() {
875 warn "saving database $path\n";#d# remove later
876 waitpid $pid, 0 if $pid;
877 if (0 == ($pid = fork)) {
878 $db->{_meta}{version} = 1;
879 Storable::nstore $db, "$path~";
880 rename "$path~", $path;
881 cf::_exit 0 if defined $pid;
882 }
883 }
884
885 my $dirty;
886
887 sub db_sync() {
888 db_save if $dirty;
889 undef $dirty;
890 }
891
892 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {
893 db_sync;
894 });
895
896 sub db_dirty() {
897 $dirty = 1;
898 $idle->start;
899 }
900
901 sub db_get($;$) {
902 @_ >= 2
903 ? $db->{$_[0]}{$_[1]}
904 : ($db->{$_[0]} ||= { })
905 }
906
907 sub db_put($$;$) {
908 if (@_ >= 3) {
909 $db->{$_[0]}{$_[1]} = $_[2];
910 } else {
911 $db->{$_[0]} = $_[1];
912 }
913 db_dirty;
914 }
915
916 attach_global
917 prio => 10000,
918 on_cleanup => sub {
919 db_sync;
920 },
921 ;
922}
923
924#############################################################################
900# the server's main() 925# the server's main()
901 926
902sub main { 927sub main {
928 db_load;
903 load_extensions; 929 load_extensions;
904 Event::loop; 930 Event::loop;
905} 931}
906 932
907############################################################################# 933#############################################################################
908# initialisation 934# initialisation
935
936sub _perl_reload(&) {
937 my ($msg) = @_;
938
939 $msg->("reloading...");
940
941 eval {
942 # cancel all watchers
943 $_->cancel for Event::all_watchers;
944
945 # unload all extensions
946 for (@exts) {
947 $msg->("unloading <$_>");
948 unload_extension $_;
949 }
950
951 # unload all modules loaded from $LIBDIR
952 while (my ($k, $v) = each %INC) {
953 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
954
955 $msg->("removing <$k>");
956 delete $INC{$k};
957
958 $k =~ s/\.pm$//;
959 $k =~ s/\//::/g;
960
961 if (my $cb = $k->can ("unload_module")) {
962 $cb->();
963 }
964
965 Symbol::delete_package $k;
966 }
967
968 # sync database to disk
969 cf::db_sync;
970
971 # get rid of safe::, as good as possible
972 Symbol::delete_package "safe::$_"
973 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
974
975 # remove register_script_function callbacks
976 # TODO
977
978 # unload cf.pm "a bit"
979 delete $INC{"cf.pm"};
980
981 # don't, removes xs symbols, too,
982 # and global variables created in xs
983 #Symbol::delete_package __PACKAGE__;
984
985 # reload cf.pm
986 $msg->("reloading cf.pm");
987 require cf;
988
989 # load database again
990 cf::db_load;
991
992 # load extensions
993 $msg->("load extensions");
994 cf::load_extensions;
995
996 # reattach attachments to objects
997 $msg->("reattach");
998 _global_reattach;
999 };
1000 $msg->($@) if $@;
1001
1002 $msg->("reloaded");
1003};
1004
1005sub perl_reload() {
1006 _perl_reload {
1007 warn $_[0];
1008 print "$_[0]\n";
1009 };
1010}
1011
1012register_command "perl-reload", 0, sub {
1013 my ($who, $arg) = @_;
1014
1015 if ($who->flag (FLAG_WIZ)) {
1016 _perl_reload {
1017 warn $_[0];
1018 $who->message ($_[0]);
1019 };
1020 }
1021};
909 1022
910register "<global>", __PACKAGE__; 1023register "<global>", __PACKAGE__;
911 1024
912unshift @INC, $LIBDIR; 1025unshift @INC, $LIBDIR;
913 1026

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