| 1 |
#! perl # MANDATORY |
| 2 |
|
| 3 |
# this extension swaps out maps and resets them, in essence managing |
| 4 |
# the reset/swap policy of the server. |
| 5 |
# it also contains the map prefetching logic |
| 6 |
|
| 7 |
#our $DEACTIVATE_TIMEOUT = 20; # number of seconds after which maps get deactivated to save cpu |
| 8 |
our $SWAP_TIMEOUT = $cf::CFG{swap_timeout} || 35; # number of seconds after which maps inactive get swapped out |
| 9 |
our $SCHEDULE_INTERVAL = $cf::CFG{schedule_interval} || 10; # time the map scheduler sleeps between runs |
| 10 |
our $SAVE_TIMEOUT = $cf::CFG{save_timeout} || 20; # save maps every n seconds |
| 11 |
our $MAX_ACTIVES = $cf::CFG{max_actives} || 200000; # swap aggressively when > this many objects are active |
| 12 |
|
| 13 |
cf::async_ext { |
| 14 |
$Coro::current->prio (Coro::PRIO_MIN); |
| 15 |
# load the header of swapped-out maps. |
| 16 |
# this is not a correctness issue, it simply saves diskspace |
| 17 |
# because old files will get cleaned up on reset time |
| 18 |
Coro::Timer::sleep 1; |
| 19 |
|
| 20 |
my $files = Coro::AIO::aio_readdir cf::localdir . "/" . cf::tmpdir; |
| 21 |
|
| 22 |
for my $map (@$files) { |
| 23 |
utf8::decode $map; |
| 24 |
next if $map =~ /\.(?:pst|meta)$/; |
| 25 |
$map =~ s/∕/\//g; |
| 26 |
$map =~ s/\.map$//; |
| 27 |
cf::map::find $map; |
| 28 |
$cf::WAIT_FOR_TICK_ONE->wait; |
| 29 |
} |
| 30 |
|
| 31 |
#TODO: should also preload random maps... |
| 32 |
}; |
| 33 |
|
| 34 |
our $SCHEDULER = cf::async_ext { |
| 35 |
my $schedule_interval = Coro::Event->timer (after => 1, interval => $SCHEDULE_INTERVAL); |
| 36 |
while () { |
| 37 |
$schedule_interval->next unless cf::object::actives_size > $MAX_ACTIVES; |
| 38 |
|
| 39 |
# this weird form of iteration over values is used because |
| 40 |
# the hash changes underneath us frequently, and for |
| 41 |
# keeps a direct reference to the value without (in 5.8 perls) |
| 42 |
# keeping a reference, so this is prone to crashes or worse. |
| 43 |
my @maps = keys %cf::MAP; |
| 44 |
for (@maps) { |
| 45 |
my $map = $cf::MAP{$_} |
| 46 |
or next; |
| 47 |
$map->valid or next; |
| 48 |
|
| 49 |
eval { |
| 50 |
# not yet, because maps might become visible to players nearby |
| 51 |
# we need to remove the map from %cf::MAP and all tiled map links |
| 52 |
# if ($last_access + $DEACTIVATE_TIMEOUT <= $cf::RUNTIME) { |
| 53 |
# $map->deactivate; |
| 54 |
# delete $map->{active}; |
| 55 |
# } |
| 56 |
if ($map->should_reset) { |
| 57 |
$map->reset; |
| 58 |
} elsif ($map->in_memory == cf::MAP_IN_MEMORY) { |
| 59 |
my $max_idle = cf::object::actives_size > $MAX_ACTIVES ? 1 : $SWAP_TIMEOUT; |
| 60 |
if ($map->last_access + $max_idle <= $cf::RUNTIME && !$map->players) { |
| 61 |
$map->swap_out; |
| 62 |
$cf::WAIT_FOR_TICK_ONE->wait unless $max_idle == 1; |
| 63 |
} elsif ($map->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) { |
| 64 |
$map->save; |
| 65 |
$cf::WAIT_FOR_TICK_ONE->wait unless $max_idle == 1; |
| 66 |
} |
| 67 |
} |
| 68 |
}; |
| 69 |
warn $@ if $@; |
| 70 |
Coro::cede; |
| 71 |
}; |
| 72 |
} |
| 73 |
}; |
| 74 |
|
| 75 |
$SCHEDULER->prio (-2); |
| 76 |
|
