| 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 |
our $SCHEDULER = cf::async_ext { |
| 9 |
$Coro::current->{desc} = "player scheduler"; |
| 10 |
|
| 11 |
while () { |
| 12 |
Coro::EV::timer_once $SCHEDULE_INTERVAL; |
| 13 |
|
| 14 |
# this weird form of iteration over values is used because |
| 15 |
# the hash changes underneath us frequently, and for |
| 16 |
# keeps a direct reference to the value without (in 5.8 perls) |
| 17 |
# keeping a reference, so this is prone to crashes or worse. |
| 18 |
my @players = keys %cf::PLAYER; |
| 19 |
for (@players) { |
| 20 |
my $pl = $cf::PLAYER{$_} |
| 21 |
or next; |
| 22 |
$pl->valid or next; |
| 23 |
|
| 24 |
eval { |
| 25 |
if ($pl->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) { |
| 26 |
$pl->save; |
| 27 |
|
| 28 |
unless ($pl->active || $pl->ns) { |
| 29 |
# check refcounts, this is tricky and needs to be adjusted to fit server internals |
| 30 |
my $ob = $pl->ob; |
| 31 |
|
| 32 |
my $pl_ref = $pl->refcnt_cnt; |
| 33 |
my $ob_ref = $ob->refcnt_cnt; |
| 34 |
|
| 35 |
## pl_ref == (P)$pl + (P)%cf::PLAYER + (C)ob->contr |
| 36 |
## ob_ref == (P)$ob + (C)pl->observe + (C)simply being an object |
| 37 |
if ($pl_ref == 3 && $ob_ref == 3) { |
| 38 |
warn "player-scheduler destroy ", $ob->name;#d# |
| 39 |
|
| 40 |
# remove from sight and get fresh "copies" |
| 41 |
$pl = delete $cf::PLAYER{$ob->name}; |
| 42 |
$ob = $pl->ob; |
| 43 |
|
| 44 |
$pl->destroy; # destroys $ob |
| 45 |
} else { |
| 46 |
my $a_ = $pl->refcnt;#d# |
| 47 |
my $b_ = $ob->refcnt;#d# |
| 48 |
|
| 49 |
warn "player-scheduler refcnt ", $ob->name, " pl $pl_ref/3 ob $ob_ref/3 (C pl $a_/1 ob $b_/2)\n";#d# |
| 50 |
} |
| 51 |
} |
| 52 |
} |
| 53 |
}; |
| 54 |
warn $@ if $@; |
| 55 |
cf::cede_to_tick; |
| 56 |
}; |
| 57 |
} |
| 58 |
}; |
| 59 |
|
| 60 |
$SCHEDULER->prio (1); |
| 61 |
|
