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/cvs/deliantra/server/ext/player-scheduler.ext
Revision: 1.4
Committed: Tue Apr 6 23:34:57 2010 UTC (14 years, 1 month ago) by root
Branch: MAIN
Changes since 1.3: +16 -0 lines
Log Message:
slots

File Contents

# Content
1 #! perl # mandatory
2
3 # player scheduler, evoking players from ram
4
5 our $SCHEDULE_INTERVAL = $cf::CFG{player_schedule_interval} || 10; # time the player scheduler sleeps between runs
6 our $SAVE_TIMEOUT = $cf::CFG{player_save_interval} || 20; # save players every n seconds
7
8 cf::player->attach (
9 on_load => sub {
10 my ($pl, $path) = @_;
11
12 my $slots = delete $pl->{_slots};
13
14 $pl->ob->current_weapon ($slots->[0]);
15 $pl->combat_ob ($slots->[1]);
16 $pl->ranged_ob ($slots->[2]);
17 },
18 on_save => sub {
19 my ($pl, $path) = @_;
20 $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
21 },
22 );
23
24 our $SCHEDULER = cf::async_ext {
25 $Coro::current->{desc} = "player scheduler";
26
27 while () {
28 Coro::EV::timer_once $SCHEDULE_INTERVAL;
29
30 # this weird form of iteration over values is used because
31 # the hash changes underneath us frequently, and for
32 # keeps a direct reference to the value without (in 5.8 perls)
33 # keeping a reference, so this is prone to crashes or worse.
34 my @players = keys %cf::PLAYER;
35 for (@players) {
36 my $pl = $cf::PLAYER{$_}
37 or next;
38 $pl->valid or next;
39
40 eval {
41 if ($pl->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) {
42 $pl->save;
43
44 unless ($pl->active || $pl->ns) {
45 # check refcounts, this is tricky and needs to be adjusted to fit server internals
46 my $ob = $pl->ob;
47
48 my $pl_ref = $pl->refcnt_cnt;
49 my $ob_ref = $ob->refcnt_cnt;
50
51 ## pl_ref == (P)$pl + (P)%cf::PLAYER + (C)ob->contr
52 ## ob_ref == (P)$ob + (C)pl->observe + (C)pl->viewpoint + (C)simply being an object
53 ## !$pl->ns ensures that ob == viewpoint == observe
54 if ($pl_ref == 3 && $ob_ref == 4) {
55 warn "player-scheduler destroy ", $ob->name;#d#
56
57 # remove from sight and get fresh "copies"
58 $pl = delete $cf::PLAYER{$ob->name};
59 $ob = $pl->ob;
60
61 $pl->destroy; # destroys $ob
62 } else {
63 my $a_ = $pl->refcnt;#d#
64 my $b_ = $ob->refcnt;#d#
65
66 warn "player-scheduler refcnt ", $ob->name, " pl $pl_ref/3 ob $ob_ref/3 (C pl $a_/1 ob $b_/2)\n";#d#
67 }
68 }
69 }
70 };
71 warn $@ if $@;
72 cf::cede_to_tick;
73 };
74 }
75 };
76
77 $SCHEDULER->prio (1);
78