1 | #! perl |
1 | #! perl |
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. |
|
|
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 = 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 = 2; # time the map scheduler sleeps between runs |
9 | our $SAVE_TIMEOUT = 60; # save maps every n seconds |
10 | our $SAVE_TIMEOUT = 20; # save maps every n seconds |
10 | our $SAVE_INTERVAL = 0.4; # save at max. one map every $SAVE_HOLD |
11 | our $SAVE_INTERVAL = 0.1; # save at max. one map every $SAVE_INTERVAL |
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. |
|
|
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; |
15 | |
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 | cf::map::find $map; |
|
|
27 | Coro::Timer::sleep 0.05; |
|
|
28 | } |
|
|
29 | |
|
|
30 | #TODO: should also preload random maps... |
|
|
31 | }; |
|
|
32 | |
16 | our $SCHEDULER = cf::coro { |
33 | our $SCHEDULER = cf::async_ext { |
17 | while () { |
34 | while () { |
18 | Coro::Timer::sleep $SCHEDULE_INTERVAL; |
35 | Coro::Timer::sleep $SCHEDULE_INTERVAL; |
19 | |
36 | |
20 | for my $map (values %cf::MAP) { |
37 | # this weird form of iteration over values is used because |
|
|
38 | # the hash changes underneath us frequently, and for |
|
|
39 | # keeps a direct reference to the value without (in 5.8 perls) |
|
|
40 | # keeping a reference, so this is prone to crashes or worse. |
|
|
41 | my @maps = keys %cf::MAP; |
|
|
42 | for (@maps) { |
|
|
43 | my $map = $cf::MAP{$_} |
|
|
44 | or next; |
|
|
45 | $map->valid or next; |
|
|
46 | |
21 | eval { |
47 | eval { |
22 | next if $map->players; |
|
|
23 | my $last_access = $map->last_access; |
|
|
24 | # not yet, because maps might become visible to players nearby |
48 | # not yet, because maps might become visible to players nearby |
25 | # we need a tiled meta map for this to work |
49 | # we need to remove the map from %cf::MAP and all tiled map links |
26 | # if ($last_access + $DEACTIVATE_TIMEOUT <= $cf::RUNTIME) { |
50 | # if ($last_access + $DEACTIVATE_TIMEOUT <= $cf::RUNTIME) { |
27 | # $map->deactivate; |
51 | # $map->deactivate; |
28 | # delete $map->{active}; |
52 | # delete $map->{active}; |
29 | # } |
53 | # } |
30 | if ($map->should_reset) { |
54 | if ($map->should_reset) { |
31 | $map->reset; |
55 | $map->reset; |
|
|
56 | } elsif ($map->in_memory == cf::MAP_IN_MEMORY) { |
32 | } elsif ($last_access + $SWAP_TIMEOUT <= $cf::RUNTIME) { |
57 | if ($map->last_access + $SWAP_TIMEOUT <= $cf::RUNTIME && !$map->players) { |
33 | $map->swap_out; |
58 | $map->swap_out; |
34 | Coro::Timer::sleep $SAVE_INTERVAL; |
59 | Coro::Timer::sleep $SAVE_INTERVAL; |
35 | } elsif ($map->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) { |
60 | } elsif ($map->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) { |
36 | $map->save; |
61 | $map->save; |
37 | Coro::Timer::sleep $SAVE_INTERVAL; |
62 | Coro::Timer::sleep $SAVE_INTERVAL; |
|
|
63 | } |
38 | } |
64 | } |
39 | }; |
65 | }; |
40 | warn $@ if $@; |
66 | warn $@ if $@; |
41 | Coro::cede; |
67 | Coro::cede; |
42 | } |
68 | }; |
43 | } |
69 | } |
44 | }; |
70 | }; |
|
|
71 | |
45 | $SCHEDULER->prio (-2); |
72 | $SCHEDULER->prio (-2); |
46 | |
73 | |
|
|
74 | # map load prefetch for tiled maps, possibly exits, too |
|
|
75 | cf::map->attach ( |
|
|
76 | on_enter => sub { |
|
|
77 | my ($map, $pl) = @_; |
|
|
78 | |
|
|
79 | (cf::async { |
|
|
80 | my @diag; # diagonal neighbours |
|
|
81 | |
|
|
82 | for (0 .. 3) { |
|
|
83 | my $neigh = $map->tile_path ($_) |
|
|
84 | or next; |
|
|
85 | $neigh = cf::map::find $neigh, $map |
|
|
86 | or next; |
|
|
87 | $neigh->load; |
|
|
88 | |
|
|
89 | push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh], |
|
|
90 | [$neigh->tile_path (($_ + 1) % 4), $neigh]; |
|
|
91 | } |
|
|
92 | |
|
|
93 | for (@diag) { |
|
|
94 | my $neigh = cf::map::find @$_ |
|
|
95 | or next; |
|
|
96 | $neigh->load; |
|
|
97 | } |
|
|
98 | })->prio (2); |
|
|
99 | # higher prio because prefetching is very important |
|
|
100 | # as it prefetches maps that can make the server block |
|
|
101 | }, |
|
|
102 | ); |
|
|
103 | |