| … | |
… | |
| 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;#d# |
|
|
34 | our $UPTIME; |
|
|
35 | $UPTIME ||= $uptime;#d# |
|
|
36 | $UPTIME ||= time; |
|
|
37 | |
|
|
38 | ############################################################################# |
|
|
39 | |
|
|
40 | =head2 GLOBAL VARIABLES |
|
|
41 | |
|
|
42 | =over 4 |
|
|
43 | |
|
|
44 | =item $cf::UPTIME |
|
|
45 | |
|
|
46 | The timestamp of the server start (so not actually an uptime). |
|
|
47 | |
|
|
48 | =item $cf::LIBDIR |
|
|
49 | |
|
|
50 | The perl library directory, where extensions and cf-specific modules can |
|
|
51 | be found. It will be added to C<@INC> automatically. |
|
|
52 | |
|
|
53 | =item $cf::TICK |
|
|
54 | |
|
|
55 | The interval between server ticks, in seconds. |
|
|
56 | |
|
|
57 | =item %cf::CFG |
|
|
58 | |
|
|
59 | Configuration for the server, loaded from C</etc/crossfire/config>, or |
|
|
60 | from wherever your confdir points to. |
|
|
61 | |
|
|
62 | =back |
|
|
63 | |
|
|
64 | =cut |
| 27 | |
65 | |
| 28 | BEGIN { |
66 | BEGIN { |
| 29 | *CORE::GLOBAL::warn = sub { |
67 | *CORE::GLOBAL::warn = sub { |
| 30 | my $msg = join "", @_; |
68 | my $msg = join "", @_; |
| 31 | $msg .= "\n" |
69 | $msg .= "\n" |
| … | |
… | |
| 34 | print STDERR "cfperl: $msg"; |
72 | print STDERR "cfperl: $msg"; |
| 35 | LOG llevError, "cfperl: $msg"; |
73 | LOG llevError, "cfperl: $msg"; |
| 36 | }; |
74 | }; |
| 37 | } |
75 | } |
| 38 | |
76 | |
| 39 | my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply! |
|
|
| 40 | |
|
|
| 41 | # generate property mutators |
|
|
| 42 | sub prop_gen { |
|
|
| 43 | my ($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'; |
77 | @safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; |
| 74 | |
78 | |
| 75 | # we bless all objects into (empty) derived classes to force a method lookup |
79 | # we bless all objects into (empty) derived classes to force a method lookup |
| 76 | # within the Safe compartment. |
80 | # 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)) { |
81 | for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) { |
| … | |
… | |
| 87 | my @exts; |
91 | my @exts; |
| 88 | my @hook; |
92 | my @hook; |
| 89 | my %command; |
93 | my %command; |
| 90 | my %extcmd; |
94 | my %extcmd; |
| 91 | |
95 | |
| 92 | ############################################################################# |
96 | =head2 UTILITY FUNCTIONS |
| 93 | # utility functions |
97 | |
|
|
98 | =over 4 |
|
|
99 | |
|
|
100 | =cut |
| 94 | |
101 | |
| 95 | use JSON::Syck (); # TODO# replace by JSON::PC once working |
102 | use JSON::Syck (); # TODO# replace by JSON::PC once working |
|
|
103 | |
|
|
104 | =item $ref = cf::from_json $json |
|
|
105 | |
|
|
106 | Converts a JSON string into the corresponding perl data structure. |
|
|
107 | |
|
|
108 | =cut |
| 96 | |
109 | |
| 97 | sub from_json($) { |
110 | sub from_json($) { |
| 98 | $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs |
111 | $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs |
| 99 | JSON::Syck::Load $_[0] |
112 | JSON::Syck::Load $_[0] |
| 100 | } |
113 | } |
| 101 | |
114 | |
|
|
115 | =item $json = cf::to_json $ref |
|
|
116 | |
|
|
117 | Converts a perl data structure into its JSON representation. |
|
|
118 | |
|
|
119 | =cut |
|
|
120 | |
| 102 | sub to_json($) { |
121 | sub to_json($) { |
| 103 | $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs |
122 | $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs |
| 104 | JSON::Syck::Dump $_[0] |
123 | JSON::Syck::Dump $_[0] |
| 105 | } |
124 | } |
| 106 | |
125 | |
|
|
126 | =back |
|
|
127 | |
|
|
128 | =cut |
|
|
129 | |
| 107 | ############################################################################# |
130 | ############################################################################# |
| 108 | # "new" plug-in system |
|
|
| 109 | |
131 | |
| 110 | =head3 EVENTS AND OBJECT ATTACHMENTS |
132 | =head2 EVENTS AND OBJECT ATTACHMENTS |
| 111 | |
133 | |
| 112 | =over 4 |
134 | =over 4 |
| 113 | |
135 | |
| 114 | =item $object->attach ($attachment, key => $value...) |
136 | =item $object->attach ($attachment, key => $value...) |
| 115 | |
137 | |
| … | |
… | |
| 389 | for (@$callbacks) { |
411 | for (@$callbacks) { |
| 390 | eval { &{$_->[1]} }; |
412 | eval { &{$_->[1]} }; |
| 391 | |
413 | |
| 392 | if ($@) { |
414 | if ($@) { |
| 393 | warn "$@"; |
415 | warn "$@"; |
| 394 | warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n"; |
416 | warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n"; |
| 395 | override; |
417 | override; |
| 396 | } |
418 | } |
| 397 | |
419 | |
| 398 | return 1 if $override; |
420 | return 1 if $override; |
| 399 | } |
421 | } |
| … | |
… | |
| 415 | removed in future versions), and there is no public API to access override |
437 | removed in future versions), and there is no public API to access override |
| 416 | results (if you must, access C<@cf::invoke_results> directly). |
438 | results (if you must, access C<@cf::invoke_results> directly). |
| 417 | |
439 | |
| 418 | =back |
440 | =back |
| 419 | |
441 | |
| 420 | =head2 methods valid for all pointers |
442 | =cut |
|
|
443 | |
|
|
444 | ############################################################################# |
|
|
445 | |
|
|
446 | =head2 METHODS VALID FOR ALL CORE OBJECTS |
| 421 | |
447 | |
| 422 | =over 4 |
448 | =over 4 |
| 423 | |
449 | |
| 424 | =item $object->valid |
450 | =item $object->valid, $player->valid, $map->valid |
| 425 | |
|
|
| 426 | =item $player->valid |
|
|
| 427 | |
|
|
| 428 | =item $map->valid |
|
|
| 429 | |
451 | |
| 430 | Just because you have a perl object does not mean that the corresponding |
452 | 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 |
453 | 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 |
454 | 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 |
455 | can be used to test for existence of the C object part without causing an |
| … | |
… | |
| 506 | unlink $filename; |
528 | unlink $filename; |
| 507 | unlink "$filename.pst"; |
529 | unlink "$filename.pst"; |
| 508 | } |
530 | } |
| 509 | } |
531 | } |
| 510 | |
532 | |
|
|
533 | sub object_freezer_as_string { |
|
|
534 | my ($rdata, $objs) = @_; |
|
|
535 | |
|
|
536 | use Data::Dumper; |
|
|
537 | |
|
|
538 | $$rdata . Dumper $objs |
|
|
539 | } |
|
|
540 | |
| 511 | sub object_thawer_load { |
541 | sub object_thawer_load { |
| 512 | my ($filename) = @_; |
542 | my ($filename) = @_; |
| 513 | |
543 | |
|
|
544 | local $/; |
|
|
545 | |
|
|
546 | my $av; |
|
|
547 | |
|
|
548 | #TODO: use sysread etc. |
|
|
549 | if (open my $data, "<:raw:perlio", $filename) { |
|
|
550 | $data = <$data>; |
| 514 | open my $fh, "<:raw:perlio", "$filename.pst" |
551 | if (open my $pst, "<:raw:perlio", "$filename.pst") { |
| 515 | or return; |
552 | $av = eval { (Storable::thaw <$pst>)->{objs} }; |
|
|
553 | } |
|
|
554 | return ($data, $av); |
|
|
555 | } |
| 516 | |
556 | |
| 517 | eval { local $/; (Storable::thaw <$fh>)->{objs} } |
557 | () |
| 518 | } |
558 | } |
| 519 | |
559 | |
| 520 | attach_to_objects |
560 | attach_to_objects |
| 521 | prio => -1000000, |
561 | prio => -1000000, |
| 522 | on_clone => sub { |
562 | on_clone => sub { |
| … | |
… | |
| 607 | . "#line 1 \"$path\"\n{\n" |
647 | . "#line 1 \"$path\"\n{\n" |
| 608 | . (do { local $/; <$fh> }) |
648 | . (do { local $/; <$fh> }) |
| 609 | . "\n};\n1"; |
649 | . "\n};\n1"; |
| 610 | |
650 | |
| 611 | eval $source |
651 | eval $source |
| 612 | or die "$path: $@"; |
652 | or die $@ ? "$path: $@\n" |
|
|
653 | : "extension disabled.\n"; |
| 613 | |
654 | |
| 614 | push @exts, $pkg; |
655 | push @exts, $pkg; |
| 615 | $ext_pkg{$base} = $pkg; |
656 | $ext_pkg{$base} = $pkg; |
| 616 | |
657 | |
| 617 | # no strict 'refs'; |
658 | # no strict 'refs'; |
| … | |
… | |
| 668 | load_extension $ext; |
709 | load_extension $ext; |
| 669 | 1 |
710 | 1 |
| 670 | } or warn "$ext not loaded: $@"; |
711 | } or warn "$ext not loaded: $@"; |
| 671 | } |
712 | } |
| 672 | } |
713 | } |
| 673 | |
|
|
| 674 | sub _perl_reload(&) { |
|
|
| 675 | my ($msg) = @_; |
|
|
| 676 | |
|
|
| 677 | $msg->("reloading..."); |
|
|
| 678 | |
|
|
| 679 | eval { |
|
|
| 680 | # 1. cancel all watchers |
|
|
| 681 | $_->cancel for Event::all_watchers; |
|
|
| 682 | |
|
|
| 683 | # 2. unload all extensions |
|
|
| 684 | for (@exts) { |
|
|
| 685 | $msg->("unloading <$_>"); |
|
|
| 686 | unload_extension $_; |
|
|
| 687 | } |
|
|
| 688 | |
|
|
| 689 | # 3. unload all modules loaded from $LIBDIR |
|
|
| 690 | while (my ($k, $v) = each %INC) { |
|
|
| 691 | next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; |
|
|
| 692 | |
|
|
| 693 | $msg->("removing <$k>"); |
|
|
| 694 | delete $INC{$k}; |
|
|
| 695 | |
|
|
| 696 | $k =~ s/\.pm$//; |
|
|
| 697 | $k =~ s/\//::/g; |
|
|
| 698 | |
|
|
| 699 | if (my $cb = $k->can ("unload_module")) { |
|
|
| 700 | $cb->(); |
|
|
| 701 | } |
|
|
| 702 | |
|
|
| 703 | Symbol::delete_package $k; |
|
|
| 704 | } |
|
|
| 705 | |
|
|
| 706 | # 4. get rid of safe::, as good as possible |
|
|
| 707 | Symbol::delete_package "safe::$_" |
|
|
| 708 | for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region); |
|
|
| 709 | |
|
|
| 710 | # 5. remove register_script_function callbacks |
|
|
| 711 | # TODO |
|
|
| 712 | |
|
|
| 713 | # 6. unload cf.pm "a bit" |
|
|
| 714 | delete $INC{"cf.pm"}; |
|
|
| 715 | |
|
|
| 716 | # don't, removes xs symbols, too, |
|
|
| 717 | # and global variables created in xs |
|
|
| 718 | #Symbol::delete_package __PACKAGE__; |
|
|
| 719 | |
|
|
| 720 | # 7. reload cf.pm |
|
|
| 721 | $msg->("reloading cf.pm"); |
|
|
| 722 | require cf; |
|
|
| 723 | }; |
|
|
| 724 | $msg->($@) if $@; |
|
|
| 725 | |
|
|
| 726 | $msg->("reloaded"); |
|
|
| 727 | }; |
|
|
| 728 | |
|
|
| 729 | sub perl_reload() { |
|
|
| 730 | _perl_reload { |
|
|
| 731 | warn $_[0]; |
|
|
| 732 | print "$_[0]\n"; |
|
|
| 733 | }; |
|
|
| 734 | } |
|
|
| 735 | |
|
|
| 736 | register_command "perl-reload", 0, sub { |
|
|
| 737 | my ($who, $arg) = @_; |
|
|
| 738 | |
|
|
| 739 | if ($who->flag (FLAG_WIZ)) { |
|
|
| 740 | _perl_reload { |
|
|
| 741 | warn $_[0]; |
|
|
| 742 | $who->message ($_[0]); |
|
|
| 743 | }; |
|
|
| 744 | } |
|
|
| 745 | }; |
|
|
| 746 | |
714 | |
| 747 | ############################################################################# |
715 | ############################################################################# |
| 748 | # extcmd framework, basically convert ext <msg> |
716 | # extcmd framework, basically convert ext <msg> |
| 749 | # into pkg::->on_extcmd_arg1 (...) while shortcutting a few |
717 | # into pkg::->on_extcmd_arg1 (...) while shortcutting a few |
| 750 | |
718 | |
| … | |
… | |
| 803 | } |
771 | } |
| 804 | }, |
772 | }, |
| 805 | ; |
773 | ; |
| 806 | |
774 | |
| 807 | ############################################################################# |
775 | ############################################################################# |
| 808 | # core extensions - in perl |
776 | |
|
|
777 | =head2 CORE EXTENSIONS |
|
|
778 | |
|
|
779 | Functions and methods that extend core crossfire objects. |
|
|
780 | |
|
|
781 | =over 4 |
| 809 | |
782 | |
| 810 | =item cf::player::exists $login |
783 | =item cf::player::exists $login |
| 811 | |
784 | |
| 812 | Returns true when the given account exists. |
785 | Returns true when the given account exists. |
| 813 | |
786 | |
| … | |
… | |
| 816 | sub cf::player::exists($) { |
789 | sub cf::player::exists($) { |
| 817 | cf::player::find $_[0] |
790 | cf::player::find $_[0] |
| 818 | or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; |
791 | or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; |
| 819 | } |
792 | } |
| 820 | |
793 | |
| 821 | =item $player->reply ($npc, $msg[, $flags]) |
794 | =item $player_object->reply ($npc, $msg[, $flags]) |
| 822 | |
795 | |
| 823 | Sends a message to the player, as if the npc C<$npc> replied. C<$npc> |
796 | Sends a message to the player, as if the npc C<$npc> replied. C<$npc> |
| 824 | can be C<undef>. Does the right thing when the player is currently in a |
797 | can be C<undef>. Does the right thing when the player is currently in a |
| 825 | dialogue with the given NPC character. |
798 | dialogue with the given NPC character. |
| 826 | |
799 | |
| … | |
… | |
| 853 | $msg{msgid} = $id; |
826 | $msg{msgid} = $id; |
| 854 | |
827 | |
| 855 | $self->send ("ext " . to_json \%msg); |
828 | $self->send ("ext " . to_json \%msg); |
| 856 | } |
829 | } |
| 857 | |
830 | |
|
|
831 | =item $player_object->may ("access") |
|
|
832 | |
|
|
833 | Returns wether the given player is authorized to access resource "access" |
|
|
834 | (e.g. "command_wizcast"). |
|
|
835 | |
|
|
836 | =cut |
|
|
837 | |
|
|
838 | sub cf::object::player::may { |
|
|
839 | my ($self, $access) = @_; |
|
|
840 | |
|
|
841 | $self->flag (cf::FLAG_WIZ) || |
|
|
842 | (ref $cf::CFG{"may_$access"} |
|
|
843 | ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} |
|
|
844 | : $cf::CFG{"may_$access"}) |
|
|
845 | } |
|
|
846 | |
|
|
847 | =cut |
|
|
848 | |
| 858 | ############################################################################# |
849 | ############################################################################# |
| 859 | # map scripting support |
850 | |
|
|
851 | =head2 SAFE SCRIPTING |
|
|
852 | |
|
|
853 | Functions that provide a safe environment to compile and execute |
|
|
854 | snippets of perl code without them endangering the safety of the server |
|
|
855 | itself. Looping constructs, I/O operators and other built-in functionality |
|
|
856 | is not available in the safe scripting environment, and the number of |
|
|
857 | functions and methods that can be called is greatly reduced. |
|
|
858 | |
|
|
859 | =cut |
| 860 | |
860 | |
| 861 | our $safe = new Safe "safe"; |
861 | our $safe = new Safe "safe"; |
| 862 | our $safe_hole = new Safe::Hole; |
862 | our $safe_hole = new Safe::Hole; |
| 863 | |
863 | |
| 864 | $SIG{FPE} = 'IGNORE'; |
864 | $SIG{FPE} = 'IGNORE'; |
| 865 | |
865 | |
| 866 | $safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
866 | $safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
| 867 | |
867 | |
| 868 | # here we export the classes and methods available to script code |
868 | # here we export the classes and methods available to script code |
|
|
869 | |
|
|
870 | =pod |
|
|
871 | |
|
|
872 | The following fucntions and emthods are available within a safe environment: |
|
|
873 | |
|
|
874 | cf::object contr pay_amount pay_player |
|
|
875 | cf::object::player player |
|
|
876 | cf::player peaceful |
|
|
877 | |
|
|
878 | =cut |
| 869 | |
879 | |
| 870 | for ( |
880 | for ( |
| 871 | ["cf::object" => qw(contr pay_amount pay_player)], |
881 | ["cf::object" => qw(contr pay_amount pay_player)], |
| 872 | ["cf::object::player" => qw(player)], |
882 | ["cf::object::player" => qw(player)], |
| 873 | ["cf::player" => qw(peaceful)], |
883 | ["cf::player" => qw(peaceful)], |
| … | |
… | |
| 876 | my ($pkg, @funs) = @$_; |
886 | my ($pkg, @funs) = @$_; |
| 877 | *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
887 | *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
| 878 | for @funs; |
888 | for @funs; |
| 879 | } |
889 | } |
| 880 | |
890 | |
|
|
891 | =over 4 |
|
|
892 | |
|
|
893 | =item @retval = safe_eval $code, [var => value, ...] |
|
|
894 | |
|
|
895 | Compiled and executes the given perl code snippet. additional var/value |
|
|
896 | pairs result in temporary local (my) scalar variables of the given name |
|
|
897 | that are available in the code snippet. Example: |
|
|
898 | |
|
|
899 | my $five = safe_eval '$first + $second', first => 1, second => 4; |
|
|
900 | |
|
|
901 | =cut |
|
|
902 | |
| 881 | sub safe_eval($;@) { |
903 | sub safe_eval($;@) { |
| 882 | my ($code, %vars) = @_; |
904 | my ($code, %vars) = @_; |
| 883 | |
905 | |
| 884 | my $qcode = $code; |
906 | my $qcode = $code; |
| 885 | $qcode =~ s/"/‟/g; # not allowed in #line filenames |
907 | $qcode =~ s/"/‟/g; # not allowed in #line filenames |
| … | |
… | |
| 907 | } |
929 | } |
| 908 | |
930 | |
| 909 | wantarray ? @res : $res[0] |
931 | wantarray ? @res : $res[0] |
| 910 | } |
932 | } |
| 911 | |
933 | |
|
|
934 | =item cf::register_script_function $function => $cb |
|
|
935 | |
|
|
936 | Register a function that can be called from within map/npc scripts. The |
|
|
937 | function should be reasonably secure and should be put into a package name |
|
|
938 | like the extension. |
|
|
939 | |
|
|
940 | Example: register a function that gets called whenever a map script calls |
|
|
941 | C<rent::overview>, as used by the C<rent> extension. |
|
|
942 | |
|
|
943 | cf::register_script_function "rent::overview" => sub { |
|
|
944 | ... |
|
|
945 | }; |
|
|
946 | |
|
|
947 | =cut |
|
|
948 | |
| 912 | sub register_script_function { |
949 | sub register_script_function { |
| 913 | my ($fun, $cb) = @_; |
950 | my ($fun, $cb) = @_; |
| 914 | |
951 | |
| 915 | no strict 'refs'; |
952 | no strict 'refs'; |
| 916 | *{"safe::$fun"} = $safe_hole->wrap ($cb); |
953 | *{"safe::$fun"} = $safe_hole->wrap ($cb); |
| 917 | } |
954 | } |
| 918 | |
955 | |
|
|
956 | =back |
|
|
957 | |
|
|
958 | =cut |
|
|
959 | |
|
|
960 | ############################################################################# |
|
|
961 | |
|
|
962 | =head2 EXTENSION DATABASE SUPPORT |
|
|
963 | |
|
|
964 | Crossfire maintains a very simple database for extension use. It can |
|
|
965 | currently store anything that can be serialised using Storable, which |
|
|
966 | excludes objects. |
|
|
967 | |
|
|
968 | The parameter C<$family> should best start with the name of the extension |
|
|
969 | using it, it should be unique. |
|
|
970 | |
|
|
971 | =over 4 |
|
|
972 | |
|
|
973 | =item $hashref = cf::db_get $family |
|
|
974 | |
|
|
975 | Return a hashref for use by the extension C<$family>, which can be |
|
|
976 | modified. After modifications, you have to call C<cf::db_dirty> or |
|
|
977 | C<cf::db_sync>. |
|
|
978 | |
|
|
979 | =item $value = cf::db_get $family => $key |
|
|
980 | |
|
|
981 | Returns a single value from the database |
|
|
982 | |
|
|
983 | =item cf::db_put $family => $hashref |
|
|
984 | |
|
|
985 | Stores the given family hashref into the database. Updates are delayed, if |
|
|
986 | you want the data to be synced to disk immediately, use C<cf::db_sync>. |
|
|
987 | |
|
|
988 | =item cf::db_put $family => $key => $value |
|
|
989 | |
|
|
990 | Stores the given C<$value> in the family hash. Updates are delayed, if you |
|
|
991 | want the data to be synced to disk immediately, use C<cf::db_sync>. |
|
|
992 | |
|
|
993 | =item cf::db_dirty |
|
|
994 | |
|
|
995 | Marks the database as dirty, to be updated at a later time. |
|
|
996 | |
|
|
997 | =item cf::db_sync |
|
|
998 | |
|
|
999 | Immediately write the database to disk I<if it is dirty>. |
|
|
1000 | |
|
|
1001 | =cut |
|
|
1002 | |
|
|
1003 | our $DB; |
|
|
1004 | |
|
|
1005 | { |
|
|
1006 | my $path = cf::localdir . "/database.pst"; |
|
|
1007 | |
|
|
1008 | sub db_load() { |
|
|
1009 | warn "loading database $path\n";#d# remove later |
|
|
1010 | $DB = stat $path ? Storable::retrieve $path : { }; |
|
|
1011 | } |
|
|
1012 | |
|
|
1013 | my $pid; |
|
|
1014 | |
|
|
1015 | sub db_save() { |
|
|
1016 | warn "saving database $path\n";#d# remove later |
|
|
1017 | waitpid $pid, 0 if $pid; |
|
|
1018 | if (0 == ($pid = fork)) { |
|
|
1019 | $DB->{_meta}{version} = 1; |
|
|
1020 | Storable::nstore $DB, "$path~"; |
|
|
1021 | rename "$path~", $path; |
|
|
1022 | cf::_exit 0 if defined $pid; |
|
|
1023 | } |
|
|
1024 | } |
|
|
1025 | |
|
|
1026 | my $dirty; |
|
|
1027 | |
|
|
1028 | sub db_sync() { |
|
|
1029 | db_save if $dirty; |
|
|
1030 | undef $dirty; |
|
|
1031 | } |
|
|
1032 | |
|
|
1033 | my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub { |
|
|
1034 | db_sync; |
|
|
1035 | }); |
|
|
1036 | |
|
|
1037 | sub db_dirty() { |
|
|
1038 | $dirty = 1; |
|
|
1039 | $idle->start; |
|
|
1040 | } |
|
|
1041 | |
|
|
1042 | sub db_get($;$) { |
|
|
1043 | @_ >= 2 |
|
|
1044 | ? $DB->{$_[0]}{$_[1]} |
|
|
1045 | : ($DB->{$_[0]} ||= { }) |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | sub db_put($$;$) { |
|
|
1049 | if (@_ >= 3) { |
|
|
1050 | $DB->{$_[0]}{$_[1]} = $_[2]; |
|
|
1051 | } else { |
|
|
1052 | $DB->{$_[0]} = $_[1]; |
|
|
1053 | } |
|
|
1054 | db_dirty; |
|
|
1055 | } |
|
|
1056 | |
|
|
1057 | attach_global |
|
|
1058 | prio => 10000, |
|
|
1059 | on_cleanup => sub { |
|
|
1060 | db_sync; |
|
|
1061 | }, |
|
|
1062 | ; |
|
|
1063 | } |
|
|
1064 | |
| 919 | ############################################################################# |
1065 | ############################################################################# |
| 920 | # the server's main() |
1066 | # the server's main() |
| 921 | |
1067 | |
|
|
1068 | sub cfg_load { |
|
|
1069 | open my $fh, "<:utf8", cf::confdir . "/config" |
|
|
1070 | or return; |
|
|
1071 | |
|
|
1072 | local $/; |
|
|
1073 | *CFG = YAML::Syck::Load <$fh>; |
|
|
1074 | } |
|
|
1075 | |
| 922 | sub main { |
1076 | sub main { |
|
|
1077 | cfg_load; |
|
|
1078 | db_load; |
|
|
1079 | load_extensions; |
| 923 | Event::loop; |
1080 | Event::loop; |
| 924 | } |
1081 | } |
| 925 | |
1082 | |
| 926 | ############################################################################# |
1083 | ############################################################################# |
| 927 | # initialisation |
1084 | # initialisation |
| 928 | |
1085 | |
|
|
1086 | sub _perl_reload(&) { |
|
|
1087 | my ($msg) = @_; |
|
|
1088 | |
|
|
1089 | $msg->("reloading..."); |
|
|
1090 | |
|
|
1091 | eval { |
|
|
1092 | # cancel all watchers |
|
|
1093 | $_->cancel for Event::all_watchers; |
|
|
1094 | |
|
|
1095 | # unload all extensions |
|
|
1096 | for (@exts) { |
|
|
1097 | $msg->("unloading <$_>"); |
|
|
1098 | unload_extension $_; |
|
|
1099 | } |
|
|
1100 | |
|
|
1101 | # unload all modules loaded from $LIBDIR |
|
|
1102 | while (my ($k, $v) = each %INC) { |
|
|
1103 | next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; |
|
|
1104 | |
|
|
1105 | $msg->("removing <$k>"); |
|
|
1106 | delete $INC{$k}; |
|
|
1107 | |
|
|
1108 | $k =~ s/\.pm$//; |
|
|
1109 | $k =~ s/\//::/g; |
|
|
1110 | |
|
|
1111 | if (my $cb = $k->can ("unload_module")) { |
|
|
1112 | $cb->(); |
|
|
1113 | } |
|
|
1114 | |
|
|
1115 | Symbol::delete_package $k; |
|
|
1116 | } |
|
|
1117 | |
|
|
1118 | # sync database to disk |
|
|
1119 | cf::db_sync; |
|
|
1120 | |
|
|
1121 | # get rid of safe::, as good as possible |
|
|
1122 | Symbol::delete_package "safe::$_" |
|
|
1123 | for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region); |
|
|
1124 | |
|
|
1125 | # remove register_script_function callbacks |
|
|
1126 | # TODO |
|
|
1127 | |
|
|
1128 | # unload cf.pm "a bit" |
|
|
1129 | delete $INC{"cf.pm"}; |
|
|
1130 | |
|
|
1131 | # don't, removes xs symbols, too, |
|
|
1132 | # and global variables created in xs |
|
|
1133 | #Symbol::delete_package __PACKAGE__; |
|
|
1134 | |
|
|
1135 | # reload cf.pm |
|
|
1136 | $msg->("reloading cf.pm"); |
|
|
1137 | require cf; |
|
|
1138 | |
|
|
1139 | # load config and database again |
|
|
1140 | cf::cfg_load; |
|
|
1141 | cf::db_load; |
|
|
1142 | |
|
|
1143 | # load extensions |
|
|
1144 | $msg->("load extensions"); |
|
|
1145 | cf::load_extensions; |
|
|
1146 | |
|
|
1147 | # reattach attachments to objects |
|
|
1148 | $msg->("reattach"); |
|
|
1149 | _global_reattach; |
|
|
1150 | }; |
|
|
1151 | $msg->($@) if $@; |
|
|
1152 | |
|
|
1153 | $msg->("reloaded"); |
|
|
1154 | }; |
|
|
1155 | |
|
|
1156 | sub perl_reload() { |
|
|
1157 | _perl_reload { |
|
|
1158 | warn $_[0]; |
|
|
1159 | print "$_[0]\n"; |
|
|
1160 | }; |
|
|
1161 | } |
|
|
1162 | |
|
|
1163 | register_command "perl-reload", 0, sub { |
|
|
1164 | my ($who, $arg) = @_; |
|
|
1165 | |
|
|
1166 | if ($who->flag (FLAG_WIZ)) { |
|
|
1167 | _perl_reload { |
|
|
1168 | warn $_[0]; |
|
|
1169 | $who->message ($_[0]); |
|
|
1170 | }; |
|
|
1171 | } |
|
|
1172 | }; |
|
|
1173 | |
| 929 | register "<global>", __PACKAGE__; |
1174 | register "<global>", __PACKAGE__; |
| 930 | |
1175 | |
| 931 | unshift @INC, $LIBDIR; |
1176 | unshift @INC, $LIBDIR; |
| 932 | |
1177 | |
| 933 | load_extensions; |
|
|
| 934 | |
|
|
| 935 | $TICK_WATCHER = Event->timer ( |
1178 | $TICK_WATCHER = Event->timer ( |
| 936 | prio => 1, |
1179 | prio => 1, |
|
|
1180 | async => 1, |
| 937 | at => $NEXT_TICK || 1, |
1181 | at => $NEXT_TICK || 1, |
| 938 | cb => sub { |
1182 | cb => sub { |
| 939 | cf::server_tick; # one server iteration |
1183 | cf::server_tick; # one server iteration |
| 940 | |
1184 | |
| 941 | my $NOW = Event::time; |
1185 | my $NOW = Event::time; |
| 942 | $NEXT_TICK += $TICK; |
1186 | $NEXT_TICK += $TICK; |
| 943 | |
1187 | |
| 944 | # if we are delayed by four ticks, skip them all |
1188 | # if we are delayed by four ticks or more, skip them all |
| 945 | $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4; |
1189 | $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4; |
| 946 | |
1190 | |
| 947 | $TICK_WATCHER->at ($NEXT_TICK); |
1191 | $TICK_WATCHER->at ($NEXT_TICK); |
| 948 | $TICK_WATCHER->start; |
1192 | $TICK_WATCHER->start; |
| 949 | }, |
1193 | }, |
| 950 | ); |
1194 | ); |
| 951 | |
1195 | |
| 952 | _reload_2; |
1196 | IO::AIO::max_poll_time $TICK * 0.2; |
|
|
1197 | |
|
|
1198 | Event->io (fd => IO::AIO::poll_fileno, |
|
|
1199 | poll => 'r', |
|
|
1200 | prio => 5, |
|
|
1201 | cb => \&IO::AIO::poll_cb); |
| 953 | |
1202 | |
| 954 | 1 |
1203 | 1 |
| 955 | |
1204 | |
