| … | |
… | |
| 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; $UPTIME ||= time; |
|
|
34 | |
|
|
35 | ############################################################################# |
|
|
36 | |
|
|
37 | =head2 GLOBAL VARIABLES |
|
|
38 | |
|
|
39 | =over 4 |
|
|
40 | |
|
|
41 | =item $cf::UPTIME |
|
|
42 | |
|
|
43 | The timestamp of the server start (so not actually an uptime). |
|
|
44 | |
|
|
45 | =item $cf::LIBDIR |
|
|
46 | |
|
|
47 | The perl library directory, where extensions and cf-specific modules can |
|
|
48 | be found. It will be added to C<@INC> automatically. |
|
|
49 | |
|
|
50 | =item $cf::TICK |
|
|
51 | |
|
|
52 | The interval between server ticks, in seconds. |
|
|
53 | |
|
|
54 | =item %cf::CFG |
|
|
55 | |
|
|
56 | Configuration for the server, loaded from C</etc/crossfire/config>, or |
|
|
57 | from wherever your confdir points to. |
|
|
58 | |
|
|
59 | =back |
|
|
60 | |
|
|
61 | =cut |
| 27 | |
62 | |
| 28 | BEGIN { |
63 | BEGIN { |
| 29 | *CORE::GLOBAL::warn = sub { |
64 | *CORE::GLOBAL::warn = sub { |
| 30 | my $msg = join "", @_; |
65 | my $msg = join "", @_; |
| 31 | $msg .= "\n" |
66 | $msg .= "\n" |
| … | |
… | |
| 34 | print STDERR "cfperl: $msg"; |
69 | print STDERR "cfperl: $msg"; |
| 35 | LOG llevError, "cfperl: $msg"; |
70 | LOG llevError, "cfperl: $msg"; |
| 36 | }; |
71 | }; |
| 37 | } |
72 | } |
| 38 | |
73 | |
| 39 | my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply! |
|
|
| 40 | |
|
|
| 41 | # generate property mutators |
|
|
| 42 | sub prop_gen { |
|
|
| 43 | my ($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'; |
74 | @safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; |
| 74 | |
75 | |
| 75 | # we bless all objects into (empty) derived classes to force a method lookup |
76 | # we bless all objects into (empty) derived classes to force a method lookup |
| 76 | # within the Safe compartment. |
77 | # 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)) { |
78 | for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) { |
| … | |
… | |
| 87 | my @exts; |
88 | my @exts; |
| 88 | my @hook; |
89 | my @hook; |
| 89 | my %command; |
90 | my %command; |
| 90 | my %extcmd; |
91 | my %extcmd; |
| 91 | |
92 | |
| 92 | ############################################################################# |
93 | =head2 UTILITY FUNCTIONS |
| 93 | # utility functions |
94 | |
|
|
95 | =over 4 |
|
|
96 | |
|
|
97 | =cut |
| 94 | |
98 | |
| 95 | use JSON::Syck (); # TODO# replace by JSON::PC once working |
99 | use JSON::Syck (); # TODO# replace by JSON::PC once working |
|
|
100 | |
|
|
101 | =item $ref = cf::from_json $json |
|
|
102 | |
|
|
103 | Converts a JSON string into the corresponding perl data structure. |
|
|
104 | |
|
|
105 | =cut |
| 96 | |
106 | |
| 97 | sub from_json($) { |
107 | sub from_json($) { |
| 98 | $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs |
108 | $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs |
| 99 | JSON::Syck::Load $_[0] |
109 | JSON::Syck::Load $_[0] |
| 100 | } |
110 | } |
| 101 | |
111 | |
|
|
112 | =item $json = cf::to_json $ref |
|
|
113 | |
|
|
114 | Converts a perl data structure into its JSON representation. |
|
|
115 | |
|
|
116 | =cut |
|
|
117 | |
| 102 | sub to_json($) { |
118 | sub to_json($) { |
| 103 | $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs |
119 | $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs |
| 104 | JSON::Syck::Dump $_[0] |
120 | JSON::Syck::Dump $_[0] |
| 105 | } |
121 | } |
| 106 | |
122 | |
|
|
123 | =back |
|
|
124 | |
|
|
125 | =cut |
|
|
126 | |
| 107 | ############################################################################# |
127 | ############################################################################# |
| 108 | # "new" plug-in system |
|
|
| 109 | |
128 | |
| 110 | =head3 EVENTS AND OBJECT ATTACHMENTS |
129 | =head2 EVENTS AND OBJECT ATTACHMENTS |
| 111 | |
130 | |
| 112 | =over 4 |
131 | =over 4 |
| 113 | |
132 | |
| 114 | =item $object->attach ($attachment, key => $value...) |
133 | =item $object->attach ($attachment, key => $value...) |
| 115 | |
134 | |
| … | |
… | |
| 389 | for (@$callbacks) { |
408 | for (@$callbacks) { |
| 390 | eval { &{$_->[1]} }; |
409 | eval { &{$_->[1]} }; |
| 391 | |
410 | |
| 392 | if ($@) { |
411 | if ($@) { |
| 393 | warn "$@"; |
412 | warn "$@"; |
| 394 | warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n"; |
413 | warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n"; |
| 395 | override; |
414 | override; |
| 396 | } |
415 | } |
| 397 | |
416 | |
| 398 | return 1 if $override; |
417 | return 1 if $override; |
| 399 | } |
418 | } |
| … | |
… | |
| 415 | removed in future versions), and there is no public API to access override |
434 | removed in future versions), and there is no public API to access override |
| 416 | results (if you must, access C<@cf::invoke_results> directly). |
435 | results (if you must, access C<@cf::invoke_results> directly). |
| 417 | |
436 | |
| 418 | =back |
437 | =back |
| 419 | |
438 | |
| 420 | =head2 methods valid for all pointers |
439 | =cut |
|
|
440 | |
|
|
441 | ############################################################################# |
|
|
442 | |
|
|
443 | =head2 METHODS VALID FOR ALL CORE OBJECTS |
| 421 | |
444 | |
| 422 | =over 4 |
445 | =over 4 |
| 423 | |
446 | |
| 424 | =item $object->valid |
447 | =item $object->valid, $player->valid, $map->valid |
| 425 | |
|
|
| 426 | =item $player->valid |
|
|
| 427 | |
|
|
| 428 | =item $map->valid |
|
|
| 429 | |
448 | |
| 430 | Just because you have a perl object does not mean that the corresponding |
449 | Just because you have a perl object does not mean that the corresponding |
| 431 | C-level object still exists. If you try to access an object that has no |
450 | C-level object still exists. If you try to access an object that has no |
| 432 | valid C counterpart anymore you get an exception at runtime. This method |
451 | valid C counterpart anymore you get an exception at runtime. This method |
| 433 | can be used to test for existence of the C object part without causing an |
452 | can be used to test for existence of the C object part without causing an |
| … | |
… | |
| 506 | unlink $filename; |
525 | unlink $filename; |
| 507 | unlink "$filename.pst"; |
526 | unlink "$filename.pst"; |
| 508 | } |
527 | } |
| 509 | } |
528 | } |
| 510 | |
529 | |
|
|
530 | sub object_freezer_as_string { |
|
|
531 | my ($rdata, $objs) = @_; |
|
|
532 | |
|
|
533 | use Data::Dumper; |
|
|
534 | |
|
|
535 | $$rdata . Dumper $objs |
|
|
536 | } |
|
|
537 | |
| 511 | sub object_thawer_load { |
538 | sub object_thawer_load { |
| 512 | my ($filename) = @_; |
539 | my ($filename) = @_; |
| 513 | |
540 | |
| 514 | local $/; |
541 | local $/; |
| 515 | |
542 | |
| … | |
… | |
| 617 | . "#line 1 \"$path\"\n{\n" |
644 | . "#line 1 \"$path\"\n{\n" |
| 618 | . (do { local $/; <$fh> }) |
645 | . (do { local $/; <$fh> }) |
| 619 | . "\n};\n1"; |
646 | . "\n};\n1"; |
| 620 | |
647 | |
| 621 | eval $source |
648 | eval $source |
| 622 | or die "$path: $@"; |
649 | or die $@ ? "$path: $@\n" |
|
|
650 | : "extension disabled.\n"; |
| 623 | |
651 | |
| 624 | push @exts, $pkg; |
652 | push @exts, $pkg; |
| 625 | $ext_pkg{$base} = $pkg; |
653 | $ext_pkg{$base} = $pkg; |
| 626 | |
654 | |
| 627 | # no strict 'refs'; |
655 | # no strict 'refs'; |
| … | |
… | |
| 678 | load_extension $ext; |
706 | load_extension $ext; |
| 679 | 1 |
707 | 1 |
| 680 | } or warn "$ext not loaded: $@"; |
708 | } or warn "$ext not loaded: $@"; |
| 681 | } |
709 | } |
| 682 | } |
710 | } |
| 683 | |
|
|
| 684 | sub _perl_reload(&) { |
|
|
| 685 | my ($msg) = @_; |
|
|
| 686 | |
|
|
| 687 | $msg->("reloading..."); |
|
|
| 688 | |
|
|
| 689 | eval { |
|
|
| 690 | # 1. cancel all watchers |
|
|
| 691 | $_->cancel for Event::all_watchers; |
|
|
| 692 | |
|
|
| 693 | # 2. unload all extensions |
|
|
| 694 | for (@exts) { |
|
|
| 695 | $msg->("unloading <$_>"); |
|
|
| 696 | unload_extension $_; |
|
|
| 697 | } |
|
|
| 698 | |
|
|
| 699 | # 3. unload all modules loaded from $LIBDIR |
|
|
| 700 | while (my ($k, $v) = each %INC) { |
|
|
| 701 | next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; |
|
|
| 702 | |
|
|
| 703 | $msg->("removing <$k>"); |
|
|
| 704 | delete $INC{$k}; |
|
|
| 705 | |
|
|
| 706 | $k =~ s/\.pm$//; |
|
|
| 707 | $k =~ s/\//::/g; |
|
|
| 708 | |
|
|
| 709 | if (my $cb = $k->can ("unload_module")) { |
|
|
| 710 | $cb->(); |
|
|
| 711 | } |
|
|
| 712 | |
|
|
| 713 | Symbol::delete_package $k; |
|
|
| 714 | } |
|
|
| 715 | |
|
|
| 716 | # 4. get rid of safe::, as good as possible |
|
|
| 717 | Symbol::delete_package "safe::$_" |
|
|
| 718 | for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region); |
|
|
| 719 | |
|
|
| 720 | # 5. remove register_script_function callbacks |
|
|
| 721 | # TODO |
|
|
| 722 | |
|
|
| 723 | # 6. unload cf.pm "a bit" |
|
|
| 724 | delete $INC{"cf.pm"}; |
|
|
| 725 | |
|
|
| 726 | # don't, removes xs symbols, too, |
|
|
| 727 | # and global variables created in xs |
|
|
| 728 | #Symbol::delete_package __PACKAGE__; |
|
|
| 729 | |
|
|
| 730 | # 7. reload cf.pm |
|
|
| 731 | $msg->("reloading cf.pm"); |
|
|
| 732 | require cf; |
|
|
| 733 | |
|
|
| 734 | $msg->("load extensions"); |
|
|
| 735 | cf::load_extensions; |
|
|
| 736 | }; |
|
|
| 737 | $msg->($@) if $@; |
|
|
| 738 | |
|
|
| 739 | $msg->("reloaded"); |
|
|
| 740 | }; |
|
|
| 741 | |
|
|
| 742 | sub perl_reload() { |
|
|
| 743 | _perl_reload { |
|
|
| 744 | warn $_[0]; |
|
|
| 745 | print "$_[0]\n"; |
|
|
| 746 | }; |
|
|
| 747 | } |
|
|
| 748 | |
|
|
| 749 | register_command "perl-reload", 0, sub { |
|
|
| 750 | my ($who, $arg) = @_; |
|
|
| 751 | |
|
|
| 752 | if ($who->flag (FLAG_WIZ)) { |
|
|
| 753 | _perl_reload { |
|
|
| 754 | warn $_[0]; |
|
|
| 755 | $who->message ($_[0]); |
|
|
| 756 | }; |
|
|
| 757 | } |
|
|
| 758 | }; |
|
|
| 759 | |
711 | |
| 760 | ############################################################################# |
712 | ############################################################################# |
| 761 | # extcmd framework, basically convert ext <msg> |
713 | # extcmd framework, basically convert ext <msg> |
| 762 | # into pkg::->on_extcmd_arg1 (...) while shortcutting a few |
714 | # into pkg::->on_extcmd_arg1 (...) while shortcutting a few |
| 763 | |
715 | |
| … | |
… | |
| 816 | } |
768 | } |
| 817 | }, |
769 | }, |
| 818 | ; |
770 | ; |
| 819 | |
771 | |
| 820 | ############################################################################# |
772 | ############################################################################# |
| 821 | # core extensions - in perl |
773 | |
|
|
774 | =head2 CORE EXTENSIONS |
|
|
775 | |
|
|
776 | Functions and methods that extend core crossfire objects. |
|
|
777 | |
|
|
778 | =over 4 |
| 822 | |
779 | |
| 823 | =item cf::player::exists $login |
780 | =item cf::player::exists $login |
| 824 | |
781 | |
| 825 | Returns true when the given account exists. |
782 | Returns true when the given account exists. |
| 826 | |
783 | |
| … | |
… | |
| 829 | sub cf::player::exists($) { |
786 | sub cf::player::exists($) { |
| 830 | cf::player::find $_[0] |
787 | cf::player::find $_[0] |
| 831 | or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; |
788 | or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; |
| 832 | } |
789 | } |
| 833 | |
790 | |
| 834 | =item $player->reply ($npc, $msg[, $flags]) |
791 | =item $player_object->reply ($npc, $msg[, $flags]) |
| 835 | |
792 | |
| 836 | Sends a message to the player, as if the npc C<$npc> replied. C<$npc> |
793 | Sends a message to the player, as if the npc C<$npc> replied. C<$npc> |
| 837 | can be C<undef>. Does the right thing when the player is currently in a |
794 | can be C<undef>. Does the right thing when the player is currently in a |
| 838 | dialogue with the given NPC character. |
795 | dialogue with the given NPC character. |
| 839 | |
796 | |
| … | |
… | |
| 866 | $msg{msgid} = $id; |
823 | $msg{msgid} = $id; |
| 867 | |
824 | |
| 868 | $self->send ("ext " . to_json \%msg); |
825 | $self->send ("ext " . to_json \%msg); |
| 869 | } |
826 | } |
| 870 | |
827 | |
|
|
828 | =item $player_object->may ("access") |
|
|
829 | |
|
|
830 | Returns wether the given player is authorized to access resource "access" |
|
|
831 | (e.g. "command_wizcast"). |
|
|
832 | |
|
|
833 | =cut |
|
|
834 | |
|
|
835 | sub cf::object::player::may { |
|
|
836 | my ($self, $access) = @_; |
|
|
837 | |
|
|
838 | $self->flag (cf::FLAG_WIZ) || |
|
|
839 | (ref $cf::CFG{"may_$access"} |
|
|
840 | ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} |
|
|
841 | : $cf::CFG{"may_$access"}) |
|
|
842 | } |
|
|
843 | |
|
|
844 | =cut |
|
|
845 | |
| 871 | ############################################################################# |
846 | ############################################################################# |
| 872 | # map scripting support |
847 | |
|
|
848 | =head2 SAFE SCRIPTING |
|
|
849 | |
|
|
850 | Functions that provide a safe environment to compile and execute |
|
|
851 | snippets of perl code without them endangering the safety of the server |
|
|
852 | itself. Looping constructs, I/O operators and other built-in functionality |
|
|
853 | is not available in the safe scripting environment, and the number of |
|
|
854 | functions and methods that can be called is greatly reduced. |
|
|
855 | |
|
|
856 | =cut |
| 873 | |
857 | |
| 874 | our $safe = new Safe "safe"; |
858 | our $safe = new Safe "safe"; |
| 875 | our $safe_hole = new Safe::Hole; |
859 | our $safe_hole = new Safe::Hole; |
| 876 | |
860 | |
| 877 | $SIG{FPE} = 'IGNORE'; |
861 | $SIG{FPE} = 'IGNORE'; |
| 878 | |
862 | |
| 879 | $safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
863 | $safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
| 880 | |
864 | |
| 881 | # here we export the classes and methods available to script code |
865 | # here we export the classes and methods available to script code |
|
|
866 | |
|
|
867 | =pod |
|
|
868 | |
|
|
869 | The following fucntions and emthods are available within a safe environment: |
|
|
870 | |
|
|
871 | cf::object contr pay_amount pay_player |
|
|
872 | cf::object::player player |
|
|
873 | cf::player peaceful |
|
|
874 | |
|
|
875 | =cut |
| 882 | |
876 | |
| 883 | for ( |
877 | for ( |
| 884 | ["cf::object" => qw(contr pay_amount pay_player)], |
878 | ["cf::object" => qw(contr pay_amount pay_player)], |
| 885 | ["cf::object::player" => qw(player)], |
879 | ["cf::object::player" => qw(player)], |
| 886 | ["cf::player" => qw(peaceful)], |
880 | ["cf::player" => qw(peaceful)], |
| … | |
… | |
| 889 | my ($pkg, @funs) = @$_; |
883 | my ($pkg, @funs) = @$_; |
| 890 | *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
884 | *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
| 891 | for @funs; |
885 | for @funs; |
| 892 | } |
886 | } |
| 893 | |
887 | |
|
|
888 | =over 4 |
|
|
889 | |
|
|
890 | =item @retval = safe_eval $code, [var => value, ...] |
|
|
891 | |
|
|
892 | Compiled and executes the given perl code snippet. additional var/value |
|
|
893 | pairs result in temporary local (my) scalar variables of the given name |
|
|
894 | that are available in the code snippet. Example: |
|
|
895 | |
|
|
896 | my $five = safe_eval '$first + $second', first => 1, second => 4; |
|
|
897 | |
|
|
898 | =cut |
|
|
899 | |
| 894 | sub safe_eval($;@) { |
900 | sub safe_eval($;@) { |
| 895 | my ($code, %vars) = @_; |
901 | my ($code, %vars) = @_; |
| 896 | |
902 | |
| 897 | my $qcode = $code; |
903 | my $qcode = $code; |
| 898 | $qcode =~ s/"/‟/g; # not allowed in #line filenames |
904 | $qcode =~ s/"/‟/g; # not allowed in #line filenames |
| … | |
… | |
| 920 | } |
926 | } |
| 921 | |
927 | |
| 922 | wantarray ? @res : $res[0] |
928 | wantarray ? @res : $res[0] |
| 923 | } |
929 | } |
| 924 | |
930 | |
|
|
931 | =item cf::register_script_function $function => $cb |
|
|
932 | |
|
|
933 | Register a function that can be called from within map/npc scripts. The |
|
|
934 | function should be reasonably secure and should be put into a package name |
|
|
935 | like the extension. |
|
|
936 | |
|
|
937 | Example: register a function that gets called whenever a map script calls |
|
|
938 | C<rent::overview>, as used by the C<rent> extension. |
|
|
939 | |
|
|
940 | cf::register_script_function "rent::overview" => sub { |
|
|
941 | ... |
|
|
942 | }; |
|
|
943 | |
|
|
944 | =cut |
|
|
945 | |
| 925 | sub register_script_function { |
946 | sub register_script_function { |
| 926 | my ($fun, $cb) = @_; |
947 | my ($fun, $cb) = @_; |
| 927 | |
948 | |
| 928 | no strict 'refs'; |
949 | no strict 'refs'; |
| 929 | *{"safe::$fun"} = $safe_hole->wrap ($cb); |
950 | *{"safe::$fun"} = $safe_hole->wrap ($cb); |
| 930 | } |
951 | } |
| 931 | |
952 | |
|
|
953 | =back |
|
|
954 | |
|
|
955 | =cut |
|
|
956 | |
|
|
957 | ############################################################################# |
|
|
958 | |
|
|
959 | =head2 EXTENSION DATABASE SUPPORT |
|
|
960 | |
|
|
961 | Crossfire maintains a very simple database for extension use. It can |
|
|
962 | currently store anything that can be serialised using Storable, which |
|
|
963 | excludes objects. |
|
|
964 | |
|
|
965 | The parameter C<$family> should best start with the name of the extension |
|
|
966 | using it, it should be unique. |
|
|
967 | |
|
|
968 | =over 4 |
|
|
969 | |
|
|
970 | =item $hashref = cf::db_get $family |
|
|
971 | |
|
|
972 | Return a hashref for use by the extension C<$family>, which can be |
|
|
973 | modified. After modifications, you have to call C<cf::db_dirty> or |
|
|
974 | C<cf::db_sync>. |
|
|
975 | |
|
|
976 | =item $value = cf::db_get $family => $key |
|
|
977 | |
|
|
978 | Returns a single value from the database |
|
|
979 | |
|
|
980 | =item cf::db_put $family => $hashref |
|
|
981 | |
|
|
982 | Stores the given family hashref into the database. Updates are delayed, if |
|
|
983 | you want the data to be synced to disk immediately, use C<cf::db_sync>. |
|
|
984 | |
|
|
985 | =item cf::db_put $family => $key => $value |
|
|
986 | |
|
|
987 | Stores the given C<$value> in the family hash. Updates are delayed, if you |
|
|
988 | want the data to be synced to disk immediately, use C<cf::db_sync>. |
|
|
989 | |
|
|
990 | =item cf::db_dirty |
|
|
991 | |
|
|
992 | Marks the database as dirty, to be updated at a later time. |
|
|
993 | |
|
|
994 | =item cf::db_sync |
|
|
995 | |
|
|
996 | Immediately write the database to disk I<if it is dirty>. |
|
|
997 | |
|
|
998 | =cut |
|
|
999 | |
|
|
1000 | our $DB; |
|
|
1001 | |
|
|
1002 | { |
|
|
1003 | my $path = cf::localdir . "/database.pst"; |
|
|
1004 | |
|
|
1005 | sub db_load() { |
|
|
1006 | warn "loading database $path\n";#d# remove later |
|
|
1007 | $DB = stat $path ? Storable::retrieve $path : { }; |
|
|
1008 | } |
|
|
1009 | |
|
|
1010 | my $pid; |
|
|
1011 | |
|
|
1012 | sub db_save() { |
|
|
1013 | warn "saving database $path\n";#d# remove later |
|
|
1014 | waitpid $pid, 0 if $pid; |
|
|
1015 | if (0 == ($pid = fork)) { |
|
|
1016 | $DB->{_meta}{version} = 1; |
|
|
1017 | Storable::nstore $DB, "$path~"; |
|
|
1018 | rename "$path~", $path; |
|
|
1019 | cf::_exit 0 if defined $pid; |
|
|
1020 | } |
|
|
1021 | } |
|
|
1022 | |
|
|
1023 | my $dirty; |
|
|
1024 | |
|
|
1025 | sub db_sync() { |
|
|
1026 | db_save if $dirty; |
|
|
1027 | undef $dirty; |
|
|
1028 | } |
|
|
1029 | |
|
|
1030 | my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub { |
|
|
1031 | db_sync; |
|
|
1032 | }); |
|
|
1033 | |
|
|
1034 | sub db_dirty() { |
|
|
1035 | $dirty = 1; |
|
|
1036 | $idle->start; |
|
|
1037 | } |
|
|
1038 | |
|
|
1039 | sub db_get($;$) { |
|
|
1040 | @_ >= 2 |
|
|
1041 | ? $DB->{$_[0]}{$_[1]} |
|
|
1042 | : ($DB->{$_[0]} ||= { }) |
|
|
1043 | } |
|
|
1044 | |
|
|
1045 | sub db_put($$;$) { |
|
|
1046 | if (@_ >= 3) { |
|
|
1047 | $DB->{$_[0]}{$_[1]} = $_[2]; |
|
|
1048 | } else { |
|
|
1049 | $DB->{$_[0]} = $_[1]; |
|
|
1050 | } |
|
|
1051 | db_dirty; |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | attach_global |
|
|
1055 | prio => 10000, |
|
|
1056 | on_cleanup => sub { |
|
|
1057 | db_sync; |
|
|
1058 | }, |
|
|
1059 | ; |
|
|
1060 | } |
|
|
1061 | |
| 932 | ############################################################################# |
1062 | ############################################################################# |
| 933 | # the server's main() |
1063 | # the server's main() |
| 934 | |
1064 | |
|
|
1065 | sub cfg_load { |
|
|
1066 | open my $fh, "<:utf8", cf::confdir . "/config" |
|
|
1067 | or return; |
|
|
1068 | |
|
|
1069 | local $/; |
|
|
1070 | *CFG = YAML::Syck::Load <$fh>; |
|
|
1071 | } |
|
|
1072 | |
| 935 | sub main { |
1073 | sub main { |
|
|
1074 | cfg_load; |
|
|
1075 | db_load; |
| 936 | load_extensions; |
1076 | load_extensions; |
| 937 | Event::loop; |
1077 | Event::loop; |
| 938 | } |
1078 | } |
| 939 | |
1079 | |
| 940 | ############################################################################# |
1080 | ############################################################################# |
| 941 | # initialisation |
1081 | # initialisation |
| 942 | |
1082 | |
|
|
1083 | sub _perl_reload(&) { |
|
|
1084 | my ($msg) = @_; |
|
|
1085 | |
|
|
1086 | $msg->("reloading..."); |
|
|
1087 | |
|
|
1088 | eval { |
|
|
1089 | # cancel all watchers |
|
|
1090 | $_->cancel for Event::all_watchers; |
|
|
1091 | |
|
|
1092 | # unload all extensions |
|
|
1093 | for (@exts) { |
|
|
1094 | $msg->("unloading <$_>"); |
|
|
1095 | unload_extension $_; |
|
|
1096 | } |
|
|
1097 | |
|
|
1098 | # unload all modules loaded from $LIBDIR |
|
|
1099 | while (my ($k, $v) = each %INC) { |
|
|
1100 | next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; |
|
|
1101 | |
|
|
1102 | $msg->("removing <$k>"); |
|
|
1103 | delete $INC{$k}; |
|
|
1104 | |
|
|
1105 | $k =~ s/\.pm$//; |
|
|
1106 | $k =~ s/\//::/g; |
|
|
1107 | |
|
|
1108 | if (my $cb = $k->can ("unload_module")) { |
|
|
1109 | $cb->(); |
|
|
1110 | } |
|
|
1111 | |
|
|
1112 | Symbol::delete_package $k; |
|
|
1113 | } |
|
|
1114 | |
|
|
1115 | # sync database to disk |
|
|
1116 | cf::db_sync; |
|
|
1117 | |
|
|
1118 | # get rid of safe::, as good as possible |
|
|
1119 | Symbol::delete_package "safe::$_" |
|
|
1120 | for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region); |
|
|
1121 | |
|
|
1122 | # remove register_script_function callbacks |
|
|
1123 | # TODO |
|
|
1124 | |
|
|
1125 | # unload cf.pm "a bit" |
|
|
1126 | delete $INC{"cf.pm"}; |
|
|
1127 | |
|
|
1128 | # don't, removes xs symbols, too, |
|
|
1129 | # and global variables created in xs |
|
|
1130 | #Symbol::delete_package __PACKAGE__; |
|
|
1131 | |
|
|
1132 | # reload cf.pm |
|
|
1133 | $msg->("reloading cf.pm"); |
|
|
1134 | require cf; |
|
|
1135 | |
|
|
1136 | # load config and database again |
|
|
1137 | cf::cfg_load; |
|
|
1138 | cf::db_load; |
|
|
1139 | |
|
|
1140 | # load extensions |
|
|
1141 | $msg->("load extensions"); |
|
|
1142 | cf::load_extensions; |
|
|
1143 | |
|
|
1144 | # reattach attachments to objects |
|
|
1145 | $msg->("reattach"); |
|
|
1146 | _global_reattach; |
|
|
1147 | }; |
|
|
1148 | $msg->($@) if $@; |
|
|
1149 | |
|
|
1150 | $msg->("reloaded"); |
|
|
1151 | }; |
|
|
1152 | |
|
|
1153 | sub perl_reload() { |
|
|
1154 | _perl_reload { |
|
|
1155 | warn $_[0]; |
|
|
1156 | print "$_[0]\n"; |
|
|
1157 | }; |
|
|
1158 | } |
|
|
1159 | |
|
|
1160 | register_command "perl-reload", 0, sub { |
|
|
1161 | my ($who, $arg) = @_; |
|
|
1162 | |
|
|
1163 | if ($who->flag (FLAG_WIZ)) { |
|
|
1164 | _perl_reload { |
|
|
1165 | warn $_[0]; |
|
|
1166 | $who->message ($_[0]); |
|
|
1167 | }; |
|
|
1168 | } |
|
|
1169 | }; |
|
|
1170 | |
| 943 | register "<global>", __PACKAGE__; |
1171 | register "<global>", __PACKAGE__; |
| 944 | |
1172 | |
| 945 | unshift @INC, $LIBDIR; |
1173 | unshift @INC, $LIBDIR; |
| 946 | |
1174 | |
| 947 | $TICK_WATCHER = Event->timer ( |
1175 | $TICK_WATCHER = Event->timer ( |
| 948 | prio => 1, |
1176 | prio => 1, |
|
|
1177 | async => 1, |
| 949 | at => $NEXT_TICK || 1, |
1178 | at => $NEXT_TICK || 1, |
| 950 | cb => sub { |
1179 | cb => sub { |
| 951 | cf::server_tick; # one server iteration |
1180 | cf::server_tick; # one server iteration |
| 952 | |
1181 | |
| 953 | my $NOW = Event::time; |
1182 | my $NOW = Event::time; |
| 954 | $NEXT_TICK += $TICK; |
1183 | $NEXT_TICK += $TICK; |
| 955 | |
1184 | |
| 956 | # if we are delayed by four ticks, skip them all |
1185 | # if we are delayed by four ticks or more, skip them all |
| 957 | $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4; |
1186 | $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4; |
| 958 | |
1187 | |
| 959 | $TICK_WATCHER->at ($NEXT_TICK); |
1188 | $TICK_WATCHER->at ($NEXT_TICK); |
| 960 | $TICK_WATCHER->start; |
1189 | $TICK_WATCHER->start; |
| 961 | }, |
1190 | }, |
| 962 | ); |
1191 | ); |
| 963 | |
1192 | |
| 964 | _reload_2; |
1193 | IO::AIO::max_poll_time $TICK * 0.2; |
|
|
1194 | |
|
|
1195 | Event->io (fd => IO::AIO::poll_fileno, |
|
|
1196 | poll => 'r', |
|
|
1197 | prio => 5, |
|
|
1198 | cb => \&IO::AIO::poll_cb); |
| 965 | |
1199 | |
| 966 | 1 |
1200 | 1 |
| 967 | |
1201 | |
