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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.58 by root, Wed Aug 30 12:08:15 2006 UTC vs.
Revision 1.66 by root, Tue Sep 12 22:43:31 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
… …
773 688
774sub all_objects(@) { 689sub all_objects(@) {
775 @_, map all_objects ($_->inv), @_ 690 @_, map all_objects ($_->inv), @_
776} 691}
777 692
693# TODO: compatibility cruft, remove when no longer needed
778attach_to_players 694attach_to_players
779 on_load => sub { 695 on_load => sub {
780 my ($pl, $path) = @_; 696 my ($pl, $path) = @_;
781 697
782 for my $o (all_objects $pl->ob) { 698 for my $o (all_objects $pl->ob) {
… …
900 no strict 'refs'; 816 no strict 'refs';
901 *{"safe::$fun"} = $safe_hole->wrap ($cb); 817 *{"safe::$fun"} = $safe_hole->wrap ($cb);
902} 818}
903 819
904############################################################################# 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 unless ($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]} = $_[1];
912 }
913 db_dirty;
914 }
915}
916
917#############################################################################
905# the server's main() 918# the server's main()
906 919
907sub main { 920sub main {
921 db_load;
922 load_extensions;
908 Event::loop; 923 Event::loop;
909} 924}
910 925
911############################################################################# 926#############################################################################
912# initialisation 927# initialisation
913 928
929sub _perl_reload(&) {
930 my ($msg) = @_;
931
932 $msg->("reloading...");
933
934 eval {
935 # cancel all watchers
936 $_->cancel for Event::all_watchers;
937
938 # unload all extensions
939 for (@exts) {
940 $msg->("unloading <$_>");
941 unload_extension $_;
942 }
943
944 # unload all modules loaded from $LIBDIR
945 while (my ($k, $v) = each %INC) {
946 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
947
948 $msg->("removing <$k>");
949 delete $INC{$k};
950
951 $k =~ s/\.pm$//;
952 $k =~ s/\//::/g;
953
954 if (my $cb = $k->can ("unload_module")) {
955 $cb->();
956 }
957
958 Symbol::delete_package $k;
959 }
960
961 # sync database to disk
962 cf::db_sync;
963
964 # get rid of safe::, as good as possible
965 Symbol::delete_package "safe::$_"
966 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
967
968 # remove register_script_function callbacks
969 # TODO
970
971 # unload cf.pm "a bit"
972 delete $INC{"cf.pm"};
973
974 # don't, removes xs symbols, too,
975 # and global variables created in xs
976 #Symbol::delete_package __PACKAGE__;
977
978 # reload cf.pm
979 $msg->("reloading cf.pm");
980 require cf;
981
982 # load database again
983 cf::db_load;
984
985 # load extensions
986 $msg->("load extensions");
987 cf::load_extensions;
988
989 # reattach attachments to objects
990 $msg->("reattach");
991 _global_reattach;
992 };
993 $msg->($@) if $@;
994
995 $msg->("reloaded");
996};
997
998sub perl_reload() {
999 _perl_reload {
1000 warn $_[0];
1001 print "$_[0]\n";
1002 };
1003}
1004
1005register_command "perl-reload", 0, sub {
1006 my ($who, $arg) = @_;
1007
1008 if ($who->flag (FLAG_WIZ)) {
1009 _perl_reload {
1010 warn $_[0];
1011 $who->message ($_[0]);
1012 };
1013 }
1014};
1015
914register "<global>", __PACKAGE__; 1016register "<global>", __PACKAGE__;
915 1017
916unshift @INC, $LIBDIR; 1018unshift @INC, $LIBDIR;
917
918load_extensions;
919 1019
920$TICK_WATCHER = Event->timer ( 1020$TICK_WATCHER = Event->timer (
921 prio => 1, 1021 prio => 1,
922 at => $NEXT_TICK || 1, 1022 at => $NEXT_TICK || 1,
923 cb => sub { 1023 cb => sub {
… …
932 $TICK_WATCHER->at ($NEXT_TICK); 1032 $TICK_WATCHER->at ($NEXT_TICK);
933 $TICK_WATCHER->start; 1033 $TICK_WATCHER->start;
934 }, 1034 },
935); 1035);
936 1036
937_reload_2;
938
9391 10371
940 1038

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