1 | #! perl |
1 | #! perl # MANDATORY |
2 | |
2 | |
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. |
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5 | # it also contains the map prefetching logic |
5 | |
6 | |
6 | our $DEACTIVATE_TIMEOUT = 60; # 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 |
7 | our $SWAP_TIMEOUT = 600; # 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 |
8 | our $SCHEDULE_INTERVAL = 8; # time the map scheduler sleeps between runs |
9 | our $SCHEDULE_INTERVAL = $cf::CFG{schedule_interval} || 10; # time the map scheduler sleeps between runs |
9 | our $SAVE_TIMEOUT = 60; # save maps every n seconds |
10 | our $SAVE_TIMEOUT = $cf::CFG{save_timeout} || 20; # save maps every n seconds |
10 | our $SAVE_INTERVAL = 0.4; # save at max. one map every $SAVE_HOLD |
11 | our $MAX_ACTIVES = $cf::CFG{max_actives} || 200000; # swap aggressively when > this many objects are active |
11 | |
12 | |
12 | $DEACTIVATE_TIMEOUT = 3;#d# |
13 | cf::async_ext { |
13 | $SWAP_TIMEOUT = 5;#d# |
14 | $Coro::current->prio (Coro::PRIO_MIN); |
14 | $SCHEDULE_INTERVAL = 1; |
15 | # load the header of swapped-out maps. |
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16 | # this is not a correctness issue, it simply saves diskspace |
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17 | # because old files will get cleaned up on reset time |
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18 | Coro::Timer::sleep 1; |
15 | |
19 | |
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20 | my $files = Coro::AIO::aio_readdir cf::localdir . "/" . cf::tmpdir; |
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21 | |
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22 | for my $map (@$files) { |
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23 | utf8::decode $map; |
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24 | next if $map =~ /\.(?:pst|meta)$/; |
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25 | $map =~ s/∕/\//g; |
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26 | $map =~ s/\.map$//; |
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27 | cf::map::find $map; |
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28 | $cf::WAIT_FOR_TICK_ONE->wait; |
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29 | } |
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30 | |
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31 | #TODO: should also preload random maps... |
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32 | }; |
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33 | |
16 | our $SCHEDULER = cf::coro { |
34 | our $SCHEDULER = cf::async_ext { |
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35 | my $schedule_interval = Coro::Event->timer (after => 1, interval => $SCHEDULE_INTERVAL); |
17 | while () { |
36 | while () { |
18 | Coro::Timer::sleep $SCHEDULE_INTERVAL; |
37 | $schedule_interval->next unless cf::object::actives_size > $MAX_ACTIVES; |
19 | |
38 | |
20 | for my $map (values %cf::MAP) { |
39 | # this weird form of iteration over values is used because |
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40 | # the hash changes underneath us frequently, and for |
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41 | # keeps a direct reference to the value without (in 5.8 perls) |
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42 | # keeping a reference, so this is prone to crashes or worse. |
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43 | my @maps = keys %cf::MAP; |
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44 | for (@maps) { |
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45 | my $map = $cf::MAP{$_} |
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46 | or next; |
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47 | $map->valid or next; |
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48 | |
21 | eval { |
49 | eval { |
22 | next if $map->players; |
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23 | my $last_access = $map->last_access; |
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24 | # not yet, because maps might become visible to players nearby |
50 | # not yet, because maps might become visible to players nearby |
25 | # we need a tiled meta map for this to work |
51 | # we need to remove the map from %cf::MAP and all tiled map links |
26 | # if ($last_access + $DEACTIVATE_TIMEOUT <= $cf::RUNTIME) { |
52 | # if ($last_access + $DEACTIVATE_TIMEOUT <= $cf::RUNTIME) { |
27 | # $map->deactivate; |
53 | # $map->deactivate; |
28 | # delete $map->{active}; |
54 | # delete $map->{active}; |
29 | # } |
55 | # } |
30 | if ($map->should_reset) { |
56 | if ($map->should_reset) { |
31 | $map->reset; |
57 | $map->reset; |
32 | } elsif ($last_access + $SWAP_TIMEOUT <= $cf::RUNTIME) { |
58 | } elsif ($map->in_memory == cf::MAP_IN_MEMORY) { |
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59 | my $max_idle = cf::object::actives_size > $MAX_ACTIVES ? 1 : $SWAP_TIMEOUT; |
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60 | if ($map->last_access + $max_idle <= $cf::RUNTIME && !$map->players) { |
33 | $map->swap_out; |
61 | $map->swap_out; |
34 | Coro::Timer::sleep $SAVE_INTERVAL; |
62 | $cf::WAIT_FOR_TICK_ONE->wait unless $max_idle == 1; |
35 | } elsif ($map->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) { |
63 | } elsif ($map->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) { |
36 | $map->save; |
64 | $map->save; |
37 | Coro::Timer::sleep $SAVE_INTERVAL; |
65 | $cf::WAIT_FOR_TICK_ONE->wait unless $max_idle == 1; |
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66 | } |
38 | } |
67 | } |
39 | }; |
68 | }; |
40 | warn $@ if $@; |
69 | warn $@ if $@; |
41 | Coro::cede; |
70 | Coro::cede; |
42 | } |
71 | }; |
43 | } |
72 | } |
44 | }; |
73 | }; |
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74 | |
45 | $SCHEDULER->prio (-2); |
75 | $SCHEDULER->prio (-2); |
46 | |
76 | |