| … | |
… | |
| 3 | # this extension swaps out maps and resets them, in essence managing |
3 | # this extension swaps out maps and resets them, in essence managing |
| 4 | # the reset/swap policy of the server. |
4 | # the reset/swap policy of the server. |
| 5 | # it also contains the map prefetching logic |
5 | # it also contains the map prefetching logic |
| 6 | |
6 | |
| 7 | #our $DEACTIVATE_TIMEOUT = 20; # number of seconds after which maps get deactivated to save cpu |
7 | #our $DEACTIVATE_TIMEOUT = 20; # number of seconds after which maps get deactivated to save cpu |
| 8 | our $SWAP_TIMEOUT = 35; # number of seconds after which maps inactive get swapped out |
8 | our $SWAP_TIMEOUT = $cf::CFG{swap_timeout} || 35; # number of seconds after which maps inactive get swapped out |
| 9 | our $SCHEDULE_INTERVAL = 2; # time the map scheduler sleeps between runs |
9 | our $SCHEDULE_INTERVAL = $cf::CFG{schedule_interval} || 10; # time the map scheduler sleeps between runs |
| 10 | our $SAVE_TIMEOUT = 20; # save maps every n seconds |
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 |
11 | our $MAX_ACTIVES = $cf::CFG{max_actives} || 200000; # swap aggressively when > this many objects are active |
| 12 | |
12 | |
| 13 | cf::async_ext { |
13 | cf::async_ext { |
| 14 | $Coro::current->prio (Coro::PRIO_MIN); |
14 | $Coro::current->prio (Coro::PRIO_MIN); |
| 15 | # load the header of swapped-out maps. |
15 | # load the header of swapped-out maps. |
| 16 | # this is not a correctness issue, it simply saves diskspace |
16 | # this is not a correctness issue, it simply saves diskspace |
| … | |
… | |
| 32 | }; |
32 | }; |
| 33 | |
33 | |
| 34 | our $SCHEDULER = cf::async_ext { |
34 | our $SCHEDULER = cf::async_ext { |
| 35 | my $schedule_interval = Coro::Event->timer (after => 1, interval => $SCHEDULE_INTERVAL); |
35 | my $schedule_interval = Coro::Event->timer (after => 1, interval => $SCHEDULE_INTERVAL); |
| 36 | while () { |
36 | while () { |
| 37 | $schedule_interval->next; |
37 | $schedule_interval->next unless cf::object::actives_size > $MAX_ACTIVES; |
| 38 | |
38 | |
| 39 | # this weird form of iteration over values is used because |
39 | # this weird form of iteration over values is used because |
| 40 | # the hash changes underneath us frequently, and for |
40 | # the hash changes underneath us frequently, and for |
| 41 | # keeps a direct reference to the value without (in 5.8 perls) |
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. |
42 | # keeping a reference, so this is prone to crashes or worse. |
| … | |
… | |
| 57 | $map->reset; |
57 | $map->reset; |
| 58 | } elsif ($map->in_memory == cf::MAP_IN_MEMORY) { |
58 | } elsif ($map->in_memory == cf::MAP_IN_MEMORY) { |
| 59 | my $max_idle = cf::object::actives_size > $MAX_ACTIVES ? 1 : $SWAP_TIMEOUT; |
59 | my $max_idle = cf::object::actives_size > $MAX_ACTIVES ? 1 : $SWAP_TIMEOUT; |
| 60 | if ($map->last_access + $max_idle <= $cf::RUNTIME && !$map->players) { |
60 | if ($map->last_access + $max_idle <= $cf::RUNTIME && !$map->players) { |
| 61 | $map->swap_out; |
61 | $map->swap_out; |
| 62 | $cf::WAIT_FOR_TICK_ONE->wait; |
62 | $cf::WAIT_FOR_TICK_ONE->wait unless $max_idle == 1; |
| 63 | } elsif ($map->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) { |
63 | } elsif ($map->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) { |
| 64 | $map->save; |
64 | $map->save; |
| 65 | $cf::WAIT_FOR_TICK_ONE->wait; |
65 | $cf::WAIT_FOR_TICK_ONE->wait unless $max_idle == 1; |
| 66 | } |
66 | } |
| 67 | } |
67 | } |
| 68 | }; |
68 | }; |
| 69 | warn $@ if $@; |
69 | warn $@ if $@; |
| 70 | Coro::cede; |
70 | Coro::cede; |
