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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.57 by root, Wed Aug 30 11:21:24 2006 UTC vs.
Revision 1.68 by root, Tue Sep 12 23:45:16 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 unlink "$filename.cfperl";
488 chmod SAVE_MODE, "$filename.pst~";
489 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 }
490 } else { 469 } else {
470 unlink $filename;
491 unlink "$filename.pst"; 471 unlink "$filename.pst";
492 } 472 }
493
494 chmod SAVE_MODE, "$filename~";
495 rename "$filename~", $filename;
496} 473}
497 474
498sub object_thawer_load { 475sub object_thawer_load {
499 my ($filename) = @_; 476 my ($filename) = @_;
500 477
478 local $/;
479
480 my $av;
481
482 #TODO: use sysread etc.
483 if (open my $data, "<:raw:perlio", $filename) {
484 $data = <$data>;
501 open my $fh, "<:raw:perlio", "$filename.pst" 485 if (open my $pst, "<:raw:perlio", "$filename.pst") {
502 or return; 486 $av = eval { (Storable::thaw <$pst>)->{objs} };
487 }
488 return ($data, $av);
489 }
503 490
504 eval { local $/; (Storable::thaw <$fh>)->{objs} } 491 ()
505} 492}
506 493
507attach_to_objects 494attach_to_objects
508 prio => -1000000, 495 prio => -1000000,
509 on_clone => sub { 496 on_clone => sub {
… …
655 load_extension $ext; 642 load_extension $ext;
656 1 643 1
657 } or warn "$ext not loaded: $@"; 644 } or warn "$ext not loaded: $@";
658 } 645 }
659} 646}
660
661sub _perl_reload(&) {
662 my ($msg) = @_;
663
664 $msg->("reloading...");
665
666 eval {
667 # 1. cancel all watchers
668 $_->cancel for Event::all_watchers;
669
670 # 2. unload all extensions
671 for (@exts) {
672 $msg->("unloading <$_>");
673 unload_extension $_;
674 }
675
676 # 3. unload all modules loaded from $LIBDIR
677 while (my ($k, $v) = each %INC) {
678 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
679
680 $msg->("removing <$k>");
681 delete $INC{$k};
682
683 $k =~ s/\.pm$//;
684 $k =~ s/\//::/g;
685
686 if (my $cb = $k->can ("unload_module")) {
687 $cb->();
688 }
689
690 Symbol::delete_package $k;
691 }
692
693 # 4. get rid of safe::, as good as possible
694 Symbol::delete_package "safe::$_"
695 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
696
697 # 5. remove register_script_function callbacks
698 # TODO
699
700 # 6. unload cf.pm "a bit"
701 delete $INC{"cf.pm"};
702
703 # don't, removes xs symbols, too,
704 # and global variables created in xs
705 #Symbol::delete_package __PACKAGE__;
706
707 # 7. reload cf.pm
708 $msg->("reloading cf.pm");
709 require cf;
710 };
711 $msg->($@) if $@;
712
713 $msg->("reloaded");
714};
715
716sub perl_reload() {
717 _perl_reload {
718 warn $_[0];
719 print "$_[0]\n";
720 };
721}
722
723register_command "perl-reload", 0, sub {
724 my ($who, $arg) = @_;
725
726 if ($who->flag (FLAG_WIZ)) {
727 _perl_reload {
728 warn $_[0];
729 $who->message ($_[0]);
730 };
731 }
732};
733 647
734############################################################################# 648#############################################################################
735# extcmd framework, basically convert ext <msg> 649# extcmd framework, basically convert ext <msg>
736# into pkg::->on_extcmd_arg1 (...) while shortcutting a few 650# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
737 651
… …
765 defined $path or return; 679 defined $path or return;
766 680
767 unlink "$path.pst"; 681 unlink "$path.pst";
768}; 682};
769 683
770# old style persistent data, TODO: remove #d#
771*cf::mapsupport::on_swapin = 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) {
… …
920 no strict 'refs'; 816 no strict 'refs';
921 *{"safe::$fun"} = $safe_hole->wrap ($cb); 817 *{"safe::$fun"} = $safe_hole->wrap ($cb);
922} 818}
923 819
924############################################################################# 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]} = $_[1];
912 }
913 db_dirty;
914 }
915
916 attach_global
917 prio => 10000,
918 on_cleanup => sub {
919 db_sync;
920 },
921 ;
922}
923
924#############################################################################
925# the server's main() 925# the server's main()
926 926
927sub main { 927sub main {
928 db_load;
929 load_extensions;
928 Event::loop; 930 Event::loop;
929} 931}
930 932
931############################################################################# 933#############################################################################
932# initialisation 934# initialisation
933 935
936sub _perl_reload(&) {
937 my ($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};
1022
934register "<global>", __PACKAGE__; 1023register "<global>", __PACKAGE__;
935 1024
936unshift @INC, $LIBDIR; 1025unshift @INC, $LIBDIR;
937
938load_extensions;
939 1026
940$TICK_WATCHER = Event->timer ( 1027$TICK_WATCHER = Event->timer (
941 prio => 1, 1028 prio => 1,
942 at => $NEXT_TICK || 1, 1029 at => $NEXT_TICK || 1,
943 cb => sub { 1030 cb => sub {
… …
952 $TICK_WATCHER->at ($NEXT_TICK); 1039 $TICK_WATCHER->at ($NEXT_TICK);
953 $TICK_WATCHER->start; 1040 $TICK_WATCHER->start;
954 }, 1041 },
955); 1042);
956 1043
957_reload_2;
958
9591 10441
960 1045

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