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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.61 by root, Sun Sep 3 22:45:56 2006 UTC vs.
Revision 1.90 by root, Sat Dec 16 04:22:13 2006 UTC

… …
5use Storable; 5use Storable;
6use Opcode; 6use Opcode;
7use Safe; 7use Safe;
8use Safe::Hole; 8use Safe::Hole;
9 9
10use IO::AIO ();
11use YAML::Syck ();
10use Time::HiRes; 12use Time::HiRes;
11use Event; 13use 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
14use strict; 19use strict;
15 20
16_reload_1; 21sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
17 22
18our %COMMAND = (); 23our %COMMAND = ();
24our %COMMAND_TIME = ();
25our %EXTCMD = ();
26
27_init_vars;
28
19our @EVENT; 29our @EVENT;
20our %PROP_TYPE; 30our $LIBDIR = datadir . "/ext";
21our %PROP_IDX;
22our $LIBDIR = maps_directory "perl";
23 31
24our $TICK = MAX_TIME * 1e-6; 32our $TICK = MAX_TIME * 1e-6;
25our $TICK_WATCHER; 33our $TICK_WATCHER;
26our $NEXT_TICK; 34our $NEXT_TICK;
35
36our %CFG;
37
38our $UPTIME; $UPTIME ||= time;
39
40#############################################################################
41
42=head2 GLOBAL VARIABLES
43
44=over 4
45
46=item $cf::UPTIME
47
48The timestamp of the server start (so not actually an uptime).
49
50=item $cf::LIBDIR
51
52The perl library directory, where extensions and cf-specific modules can
53be found. It will be added to C<@INC> automatically.
54
55=item $cf::TICK
56
57The interval between server ticks, in seconds.
58
59=item %cf::CFG
60
61Configuration for the server, loaded from C</etc/crossfire/config>, or
62from wherever your confdir points to.
63
64=back
65
66=cut
27 67
28BEGIN { 68BEGIN {
29 *CORE::GLOBAL::warn = sub { 69 *CORE::GLOBAL::warn = sub {
30 my $msg = join "", @_; 70 my $msg = join "", @_;
31 $msg .= "\n" 71 $msg .= "\n"
… …
34 print STDERR "cfperl: $msg"; 74 print STDERR "cfperl: $msg";
35 LOG llevError, "cfperl: $msg"; 75 LOG llevError, "cfperl: $msg";
36 }; 76 };
37} 77}
38 78
39my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
40
41# generate property mutators
42sub prop_gen {
43 my ($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
73@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 79@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74 80
75# we bless all objects into (empty) derived classes to force a method lookup 81# we bless all objects into (empty) derived classes to force a method lookup
76# within the Safe compartment. 82# within the Safe compartment.
77for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) { 83for my $pkg (qw(
84 cf::object cf::object::player
85 cf::client cf::player
86 cf::arch cf::living
87 cf::map cf::party cf::region
88)) {
78 no strict 'refs'; 89 no strict 'refs';
79 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 90 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80} 91}
81 92
82$Event::DIED = sub { 93$Event::DIED = sub {
… …
84}; 95};
85 96
86my %ext_pkg; 97my %ext_pkg;
87my @exts; 98my @exts;
88my @hook; 99my @hook;
89my %command;
90my %extcmd;
91 100
92############################################################################# 101=head2 UTILITY FUNCTIONS
93# utility functions 102
103=over 4
104
105=cut
94 106
95use JSON::Syck (); # TODO# replace by JSON::PC once working 107use JSON::Syck (); # TODO# replace by JSON::PC once working
108
109=item $ref = cf::from_json $json
110
111Converts a JSON string into the corresponding perl data structure.
112
113=cut
96 114
97sub from_json($) { 115sub from_json($) {
98 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs 116 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99 JSON::Syck::Load $_[0] 117 JSON::Syck::Load $_[0]
100} 118}
101 119
120=item $json = cf::to_json $ref
121
122Converts a perl data structure into its JSON representation.
123
124=cut
125
102sub to_json($) { 126sub to_json($) {
103 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 127 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104 JSON::Syck::Dump $_[0] 128 JSON::Syck::Dump $_[0]
105} 129}
106 130
131=back
132
133=cut
134
107############################################################################# 135#############################################################################
108# "new" plug-in system
109 136
110=head3 EVENTS AND OBJECT ATTACHMENTS 137=head2 EVENTS AND OBJECT ATTACHMENTS
111 138
112=over 4 139=over 4
113 140
114=item $object->attach ($attachment, key => $value...) 141=item $object->attach ($attachment, key => $value...)
115 142
… …
389 for (@$callbacks) { 416 for (@$callbacks) {
390 eval { &{$_->[1]} }; 417 eval { &{$_->[1]} };
391 418
392 if ($@) { 419 if ($@) {
393 warn "$@"; 420 warn "$@";
394 warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n"; 421 warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
395 override; 422 override;
396 } 423 }
397 424
398 return 1 if $override; 425 return 1 if $override;
399 } 426 }
… …
415removed in future versions), and there is no public API to access override 442removed in future versions), and there is no public API to access override
416results (if you must, access C<@cf::invoke_results> directly). 443results (if you must, access C<@cf::invoke_results> directly).
417 444
418=back 445=back
419 446
420=head2 methods valid for all pointers 447=cut
448
449#############################################################################
450
451=head2 METHODS VALID FOR ALL CORE OBJECTS
421 452
422=over 4 453=over 4
423 454
424=item $object->valid 455=item $object->valid, $player->valid, $map->valid
425
426=item $player->valid
427
428=item $map->valid
429 456
430Just because you have a perl object does not mean that the corresponding 457Just because you have a perl object does not mean that the corresponding
431C-level object still exists. If you try to access an object that has no 458C-level object still exists. If you try to access an object that has no
432valid C counterpart anymore you get an exception at runtime. This method 459valid C counterpart anymore you get an exception at runtime. This method
433can be used to test for existence of the C object part without causing an 460can be used to test for existence of the C object part without causing an
… …
506 unlink $filename; 533 unlink $filename;
507 unlink "$filename.pst"; 534 unlink "$filename.pst";
508 } 535 }
509} 536}
510 537
538sub object_freezer_as_string {
539 my ($rdata, $objs) = @_;
540
541 use Data::Dumper;
542
543 $$rdata . Dumper $objs
544}
545
511sub object_thawer_load { 546sub object_thawer_load {
512 my ($filename) = @_; 547 my ($filename) = @_;
513 548
514 local $/; 549 local $/;
515 550
… …
540 if exists $src->{_attachment}; 575 if exists $src->{_attachment};
541 }, 576 },
542; 577;
543 578
544############################################################################# 579#############################################################################
545# old plug-in events 580# command handling &c
546 581
547sub inject_event { 582=item cf::register_command $name => \&callback($ob,$args);
548 my $extension = shift;
549 my $event_code = shift;
550 583
551 my $cb = $hook[$event_code]{$extension} 584Register a callback for execution when the client sends the user command
552 or return; 585$name.
553 586
554 &$cb 587=cut
555}
556
557sub inject_global_event {
558 my $event = shift;
559
560 my $cb = $hook[$event]
561 or return;
562
563 List::Util::max map &$_, values %$cb
564}
565
566sub inject_command {
567 my ($name, $obj, $params) = @_;
568
569 for my $cmd (@{ $command{$name} }) {
570 $cmd->[1]->($obj, $params);
571 }
572
573 -1
574}
575 588
576sub register_command { 589sub register_command {
577 my ($name, $time, $cb) = @_; 590 my ($name, $cb) = @_;
578 591
579 my $caller = caller; 592 my $caller = caller;
580 #warn "registering command '$name/$time' to '$caller'"; 593 #warn "registering command '$name/$time' to '$caller'";
581 594
582 push @{ $command{$name} }, [$time, $cb, $caller]; 595 push @{ $COMMAND{$name} }, [$caller, $cb];
583 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
584} 596}
597
598=item cf::register_extcmd $name => \&callback($pl,$packet);
599
600Register a callbackf ro execution when the client sends an extcmd packet.
601
602If the callback returns something, it is sent back as if reply was being
603called.
604
605=cut
585 606
586sub register_extcmd { 607sub register_extcmd {
587 my ($name, $cb) = @_; 608 my ($name, $cb) = @_;
588 609
589 my $caller = caller; 610 my $caller = caller;
590 #warn "registering extcmd '$name' to '$caller'"; 611 #warn "registering extcmd '$name' to '$caller'";
591 612
592 $extcmd{$name} = [$cb, $caller]; 613 $EXTCMD{$name} = [$cb, $caller];
593} 614}
615
616attach_to_players
617 on_command => sub {
618 my ($pl, $name, $params) = @_;
619
620 my $cb = $COMMAND{$name}
621 or return;
622
623 for my $cmd (@$cb) {
624 $cmd->[1]->($pl->ob, $params);
625 }
626
627 cf::override;
628 },
629 on_extcmd => sub {
630 my ($pl, $buf) = @_;
631
632 my $msg = eval { from_json $buf };
633
634 if (ref $msg) {
635 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
636 if (my %reply = $cb->[0]->($pl, $msg)) {
637 $pl->ext_reply ($msg->{msgid}, %reply);
638 }
639 }
640 } else {
641 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
642 }
643
644 cf::override;
645 },
646;
594 647
595sub register { 648sub register {
596 my ($base, $pkg) = @_; 649 my ($base, $pkg) = @_;
597 650
598 #TODO 651 #TODO
… …
617 . "#line 1 \"$path\"\n{\n" 670 . "#line 1 \"$path\"\n{\n"
618 . (do { local $/; <$fh> }) 671 . (do { local $/; <$fh> })
619 . "\n};\n1"; 672 . "\n};\n1";
620 673
621 eval $source 674 eval $source
622 or die "$path: $@"; 675 or die $@ ? "$path: $@\n"
676 : "extension disabled.\n";
623 677
624 push @exts, $pkg; 678 push @exts, $pkg;
625 $ext_pkg{$base} = $pkg; 679 $ext_pkg{$base} = $pkg;
626 680
627# no strict 'refs'; 681# no strict 'refs';
… …
640# for my $idx (0 .. $#PLUGIN_EVENT) { 694# for my $idx (0 .. $#PLUGIN_EVENT) {
641# delete $hook[$idx]{$pkg}; 695# delete $hook[$idx]{$pkg};
642# } 696# }
643 697
644 # remove commands 698 # remove commands
645 for my $name (keys %command) { 699 for my $name (keys %COMMAND) {
646 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} }; 700 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
647 701
648 if (@cb) { 702 if (@cb) {
649 $command{$name} = \@cb; 703 $COMMAND{$name} = \@cb;
650 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
651 } else { 704 } else {
652 delete $command{$name};
653 delete $COMMAND{"$name\000"}; 705 delete $COMMAND{$name};
654 } 706 }
655 } 707 }
656 708
657 # remove extcmds 709 # remove extcmds
658 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) { 710 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
659 delete $extcmd{$name}; 711 delete $EXTCMD{$name};
660 } 712 }
661 713
662 if (my $cb = $pkg->can ("unload")) { 714 if (my $cb = $pkg->can ("unload")) {
663 eval { 715 eval {
664 $cb->($pkg); 716 $cb->($pkg);
… …
668 720
669 Symbol::delete_package $pkg; 721 Symbol::delete_package $pkg;
670} 722}
671 723
672sub load_extensions { 724sub load_extensions {
673 my $LIBDIR = maps_directory "perl";
674
675 for my $ext (<$LIBDIR/*.ext>) { 725 for my $ext (<$LIBDIR/*.ext>) {
676 next unless -r $ext; 726 next unless -r $ext;
677 eval { 727 eval {
678 load_extension $ext; 728 load_extension $ext;
679 1 729 1
680 } or warn "$ext not loaded: $@"; 730 } or warn "$ext not loaded: $@";
681 } 731 }
682} 732}
683 733
684sub _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
742sub perl_reload() {
743 _perl_reload {
744 warn $_[0];
745 print "$_[0]\n";
746 };
747}
748
749register_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
760#############################################################################
761# extcmd framework, basically convert ext <msg>
762# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
763
764attach_to_players
765 on_extcmd => sub {
766 my ($pl, $buf) = @_;
767
768 my $msg = eval { from_json $buf };
769
770 if (ref $msg) {
771 if (my $cb = $extcmd{$msg->{msgtype}}) {
772 if (my %reply = $cb->[0]->($pl, $msg)) {
773 $pl->ext_reply ($msg->{msgid}, %reply);
774 }
775 }
776 } else {
777 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
778 }
779
780 cf::override;
781 },
782;
783
784############################################################################# 734#############################################################################
785# load/save/clean perl data associated with a map 735# load/save/clean perl data associated with a map
786 736
787*cf::mapsupport::on_clean = sub { 737*cf::mapsupport::on_clean = sub {
788 my ($map) = @_; 738 my ($map) = @_;
… …
816 } 766 }
817 }, 767 },
818; 768;
819 769
820############################################################################# 770#############################################################################
821# core extensions - in perl 771
772=head2 CORE EXTENSIONS
773
774Functions and methods that extend core crossfire objects.
775
776=over 4
822 777
823=item cf::player::exists $login 778=item cf::player::exists $login
824 779
825Returns true when the given account exists. 780Returns true when the given account exists.
826 781
… …
829sub cf::player::exists($) { 784sub cf::player::exists($) {
830 cf::player::find $_[0] 785 cf::player::find $_[0]
831 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 786 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
832} 787}
833 788
834=item $player->reply ($npc, $msg[, $flags]) 789=item $player_object->reply ($npc, $msg[, $flags])
835 790
836Sends a message to the player, as if the npc C<$npc> replied. C<$npc> 791Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
837can be C<undef>. Does the right thing when the player is currently in a 792can be C<undef>. Does the right thing when the player is currently in a
838dialogue with the given NPC character. 793dialogue with the given NPC character.
839 794
… …
866 $msg{msgid} = $id; 821 $msg{msgid} = $id;
867 822
868 $self->send ("ext " . to_json \%msg); 823 $self->send ("ext " . to_json \%msg);
869} 824}
870 825
826=item $player_object->may ("access")
827
828Returns wether the given player is authorized to access resource "access"
829(e.g. "command_wizcast").
830
831=cut
832
833sub cf::object::player::may {
834 my ($self, $access) = @_;
835
836 $self->flag (cf::FLAG_WIZ) ||
837 (ref $cf::CFG{"may_$access"}
838 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
839 : $cf::CFG{"may_$access"})
840}
841
842=cut
843
871############################################################################# 844#############################################################################
872# map scripting support 845
846=head2 SAFE SCRIPTING
847
848Functions that provide a safe environment to compile and execute
849snippets of perl code without them endangering the safety of the server
850itself. Looping constructs, I/O operators and other built-in functionality
851is not available in the safe scripting environment, and the number of
852functions and methods that can be called is greatly reduced.
853
854=cut
873 855
874our $safe = new Safe "safe"; 856our $safe = new Safe "safe";
875our $safe_hole = new Safe::Hole; 857our $safe_hole = new Safe::Hole;
876 858
877$SIG{FPE} = 'IGNORE'; 859$SIG{FPE} = 'IGNORE';
878 860
879$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 861$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
880 862
881# here we export the classes and methods available to script code 863# here we export the classes and methods available to script code
864
865=pod
866
867The following fucntions and emthods are available within a safe environment:
868
869 cf::object contr pay_amount pay_player
870 cf::object::player player
871 cf::player peaceful
872
873=cut
882 874
883for ( 875for (
884 ["cf::object" => qw(contr pay_amount pay_player)], 876 ["cf::object" => qw(contr pay_amount pay_player)],
885 ["cf::object::player" => qw(player)], 877 ["cf::object::player" => qw(player)],
886 ["cf::player" => qw(peaceful)], 878 ["cf::player" => qw(peaceful)],
… …
889 my ($pkg, @funs) = @$_; 881 my ($pkg, @funs) = @$_;
890 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 882 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
891 for @funs; 883 for @funs;
892} 884}
893 885
886=over 4
887
888=item @retval = safe_eval $code, [var => value, ...]
889
890Compiled and executes the given perl code snippet. additional var/value
891pairs result in temporary local (my) scalar variables of the given name
892that are available in the code snippet. Example:
893
894 my $five = safe_eval '$first + $second', first => 1, second => 4;
895
896=cut
897
894sub safe_eval($;@) { 898sub safe_eval($;@) {
895 my ($code, %vars) = @_; 899 my ($code, %vars) = @_;
896 900
897 my $qcode = $code; 901 my $qcode = $code;
898 $qcode =~ s/"/‟/g; # not allowed in #line filenames 902 $qcode =~ s/"/‟/g; # not allowed in #line filenames
… …
920 } 924 }
921 925
922 wantarray ? @res : $res[0] 926 wantarray ? @res : $res[0]
923} 927}
924 928
929=item cf::register_script_function $function => $cb
930
931Register a function that can be called from within map/npc scripts. The
932function should be reasonably secure and should be put into a package name
933like the extension.
934
935Example: register a function that gets called whenever a map script calls
936C<rent::overview>, as used by the C<rent> extension.
937
938 cf::register_script_function "rent::overview" => sub {
939 ...
940 };
941
942=cut
943
925sub register_script_function { 944sub register_script_function {
926 my ($fun, $cb) = @_; 945 my ($fun, $cb) = @_;
927 946
928 no strict 'refs'; 947 no strict 'refs';
929 *{"safe::$fun"} = $safe_hole->wrap ($cb); 948 *{"safe::$fun"} = $safe_hole->wrap ($cb);
930} 949}
931 950
951=back
952
953=cut
954
955#############################################################################
956
957=head2 EXTENSION DATABASE SUPPORT
958
959Crossfire maintains a very simple database for extension use. It can
960currently store anything that can be serialised using Storable, which
961excludes objects.
962
963The parameter C<$family> should best start with the name of the extension
964using it, it should be unique.
965
966=over 4
967
968=item $hashref = cf::db_get $family
969
970Return a hashref for use by the extension C<$family>, which can be
971modified. After modifications, you have to call C<cf::db_dirty> or
972C<cf::db_sync>.
973
974=item $value = cf::db_get $family => $key
975
976Returns a single value from the database
977
978=item cf::db_put $family => $hashref
979
980Stores the given family hashref into the database. Updates are delayed, if
981you want the data to be synced to disk immediately, use C<cf::db_sync>.
982
983=item cf::db_put $family => $key => $value
984
985Stores the given C<$value> in the family hash. Updates are delayed, if you
986want the data to be synced to disk immediately, use C<cf::db_sync>.
987
988=item cf::db_dirty
989
990Marks the database as dirty, to be updated at a later time.
991
992=item cf::db_sync
993
994Immediately write the database to disk I<if it is dirty>.
995
996=cut
997
998our $DB;
999
1000{
1001 my $path = cf::localdir . "/database.pst";
1002
1003 sub db_load() {
1004 warn "loading database $path\n";#d# remove later
1005 $DB = stat $path ? Storable::retrieve $path : { };
1006 }
1007
1008 my $pid;
1009
1010 sub db_save() {
1011 warn "saving database $path\n";#d# remove later
1012 waitpid $pid, 0 if $pid;
1013 if (0 == ($pid = fork)) {
1014 $DB->{_meta}{version} = 1;
1015 Storable::nstore $DB, "$path~";
1016 rename "$path~", $path;
1017 cf::_exit 0 if defined $pid;
1018 }
1019 }
1020
1021 my $dirty;
1022
1023 sub db_sync() {
1024 db_save if $dirty;
1025 undef $dirty;
1026 }
1027
1028 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1029 db_sync;
1030 });
1031
1032 sub db_dirty() {
1033 $dirty = 1;
1034 $idle->start;
1035 }
1036
1037 sub db_get($;$) {
1038 @_ >= 2
1039 ? $DB->{$_[0]}{$_[1]}
1040 : ($DB->{$_[0]} ||= { })
1041 }
1042
1043 sub db_put($$;$) {
1044 if (@_ >= 3) {
1045 $DB->{$_[0]}{$_[1]} = $_[2];
1046 } else {
1047 $DB->{$_[0]} = $_[1];
1048 }
1049 db_dirty;
1050 }
1051
1052 attach_global
1053 prio => 10000,
1054 on_cleanup => sub {
1055 db_sync;
1056 },
1057 ;
1058}
1059
932############################################################################# 1060#############################################################################
933# the server's main() 1061# the server's main()
934 1062
1063sub cfg_load {
1064 open my $fh, "<:utf8", cf::confdir . "/config"
1065 or return;
1066
1067 local $/;
1068 *CFG = YAML::Syck::Load <$fh>;
1069}
1070
935sub main { 1071sub main {
1072 cfg_load;
1073 db_load;
936 load_extensions; 1074 load_extensions;
937 Event::loop; 1075 Event::loop;
938} 1076}
939 1077
940############################################################################# 1078#############################################################################
941# initialisation 1079# initialisation
942 1080
1081sub _perl_reload(&) {
1082 my ($msg) = @_;
1083
1084 $msg->("reloading...");
1085
1086 eval {
1087 # cancel all watchers
1088 for (Event::all_watchers) {
1089 $_->cancel if $_->data & WF_AUTOCANCEL;
1090 }
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
1153sub perl_reload() {
1154 _perl_reload {
1155 warn $_[0];
1156 print "$_[0]\n";
1157 };
1158}
1159
943register "<global>", __PACKAGE__; 1160register "<global>", __PACKAGE__;
944 1161
1162register_command "perl-reload" => sub {
1163 my ($who, $arg) = @_;
1164
1165 if ($who->flag (FLAG_WIZ)) {
1166 _perl_reload {
1167 warn $_[0];
1168 $who->message ($_[0]);
1169 };
1170 }
1171};
1172
945unshift @INC, $LIBDIR; 1173unshift @INC, $LIBDIR;
946 1174
947$TICK_WATCHER = Event->timer ( 1175$TICK_WATCHER = Event->timer (
948 prio => 1, 1176 prio => 0,
949 at => $NEXT_TICK || 1, 1177 at => $NEXT_TICK || 1,
1178 data => WF_AUTOCANCEL,
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; 1193IO::AIO::max_poll_time $TICK * 0.2;
1194
1195Event->io (fd => IO::AIO::poll_fileno,
1196 poll => 'r',
1197 prio => 5,
1198 data => WF_AUTOCANCEL,
1199 cb => \&IO::AIO::poll_cb);
965 1200
9661 12011
967 1202

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