1 |
root |
1.37 |
#! perl # mandatory |
2 |
root |
1.1 |
|
3 |
|
|
# this extension swaps out maps and resets them, in essence managing |
4 |
|
|
# the reset/swap policy of the server. |
5 |
root |
1.18 |
# it also contains the map prefetching logic |
6 |
root |
1.1 |
|
7 |
root |
1.24 |
#our $DEACTIVATE_TIMEOUT = 20; # number of seconds after which maps get deactivated to save cpu |
8 |
root |
1.34 |
our $SWAP_TIMEOUT = $cf::CFG{swap_timeout} || 300; # number of seconds after which inactive maps get swapped out |
9 |
|
|
our $SCHEDULE_INTERVAL = $cf::CFG{schedule_interval} || .8; # time the map scheduler sleeps between runs |
10 |
|
|
our $SAVE_TIMEOUT = $cf::CFG{save_timeout} || 30; # save maps every n seconds |
11 |
|
|
our $SWAP_LOAD1 = $cf::CFG{swap_load1} || .1; # start aggressively swapping at this load |
12 |
|
|
our $SWAP_LOAD2 = $cf::CFG{swap_load2} || .4; # swap as fast as possible at this load |
13 |
root |
1.1 |
|
14 |
root |
1.17 |
cf::async_ext { |
15 |
root |
1.43 |
$Coro::current->{desc} = "startup map scanner"; |
16 |
root |
1.12 |
$Coro::current->prio (Coro::PRIO_MIN); |
17 |
root |
1.35 |
|
18 |
root |
1.14 |
# load the header of swapped-out maps. |
19 |
root |
1.12 |
# this is not a correctness issue, it simply saves diskspace |
20 |
|
|
# because old files will get cleaned up on reset time |
21 |
root |
1.35 |
Coro::Timer::sleep 0.25; |
22 |
root |
1.12 |
|
23 |
root |
1.36 |
for my $path (@{ cf::map::tmp_maps or [] }, @{ cf::map::random_maps or [] }) { |
24 |
root |
1.38 |
cf::cede_to_tick; |
25 |
root |
1.36 |
cf::map::find $path; |
26 |
root |
1.12 |
} |
27 |
|
|
|
28 |
root |
1.35 |
# now hunt for resettable per-player maps |
29 |
|
|
for my $login (@{ cf::player::list_logins or [] }) { |
30 |
|
|
for my $path (@{ cf::player::maps $login or [] }) { |
31 |
root |
1.38 |
cf::cede_to_tick; |
32 |
root |
1.35 |
|
33 |
|
|
$path =~ /^~[^\/]+(\/.*)$/ |
34 |
|
|
or next; # doh |
35 |
|
|
|
36 |
|
|
my $base = cf::map::find $1; |
37 |
|
|
|
38 |
|
|
# skip maps without base maps on the assumption |
39 |
|
|
# that those are old, unresettable maps |
40 |
|
|
next unless $base; |
41 |
|
|
|
42 |
|
|
# skip unresettable maps, for speed |
43 |
|
|
next if $base->{deny_reset}; |
44 |
|
|
|
45 |
|
|
my $map = cf::map::find $path; |
46 |
|
|
|
47 |
|
|
if ($map->{deny_reset}) { |
48 |
|
|
warn "found noreset map with resettable base map, resetting: $path\n"; |
49 |
|
|
delete $map->{deny_reset}; |
50 |
|
|
} |
51 |
|
|
} |
52 |
|
|
} |
53 |
root |
1.12 |
}; |
54 |
|
|
|
55 |
root |
1.17 |
our $SCHEDULER = cf::async_ext { |
56 |
root |
1.42 |
$Coro::current->{desc} = "map scheduler"; |
57 |
root |
1.44 |
$Coro::current->prio (Coro::PRIO_MAX); |
58 |
|
|
my $timer = Coro::Event->timer (after => 1, data => cf::WF_AUTOCANCEL); |
59 |
root |
1.38 |
|
60 |
root |
1.1 |
while () { |
61 |
root |
1.38 |
$timer->interval ($SCHEDULE_INTERVAL); |
62 |
|
|
$timer->next unless $cf::LOADAVG > $SWAP_LOAD2; |
63 |
root |
1.1 |
|
64 |
root |
1.9 |
# this weird form of iteration over values is used because |
65 |
|
|
# the hash changes underneath us frequently, and for |
66 |
|
|
# keeps a direct reference to the value without (in 5.8 perls) |
67 |
|
|
# keeping a reference, so this is prone to crashes or worse. |
68 |
root |
1.8 |
my @maps = keys %cf::MAP; |
69 |
|
|
for (@maps) { |
70 |
|
|
my $map = $cf::MAP{$_} |
71 |
|
|
or next; |
72 |
|
|
$map->valid or next; |
73 |
root |
1.9 |
|
74 |
root |
1.1 |
eval { |
75 |
|
|
# not yet, because maps might become visible to players nearby |
76 |
root |
1.3 |
# we need to remove the map from %cf::MAP and all tiled map links |
77 |
root |
1.1 |
# if ($last_access + $DEACTIVATE_TIMEOUT <= $cf::RUNTIME) { |
78 |
|
|
# $map->deactivate; |
79 |
|
|
# delete $map->{active}; |
80 |
|
|
# } |
81 |
|
|
if ($map->should_reset) { |
82 |
|
|
$map->reset; |
83 |
root |
1.3 |
} elsif ($map->in_memory == cf::MAP_IN_MEMORY) { |
84 |
root |
1.41 |
my $max_idle = cf::clamp +(cf::lerp $cf::LOADAVG, $SWAP_LOAD1, $SWAP_LOAD2, $SWAP_TIMEOUT, $cf::TICK * 1.5), |
85 |
|
|
$cf::TICK * 1.5, $SWAP_TIMEOUT; |
86 |
root |
1.34 |
|
87 |
root |
1.26 |
if ($map->last_access + $max_idle <= $cf::RUNTIME && !$map->players) { |
88 |
root |
1.25 |
$map->swap_out; |
89 |
root |
1.3 |
} elsif ($map->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) { |
90 |
root |
1.25 |
$map->save; |
91 |
root |
1.39 |
$map->{last_save} -= rand; # randomise map save times a bit |
92 |
root |
1.3 |
} |
93 |
root |
1.1 |
} |
94 |
|
|
}; |
95 |
|
|
warn $@ if $@; |
96 |
root |
1.34 |
cf::cede_to_tick; |
97 |
root |
1.8 |
}; |
98 |
root |
1.1 |
} |
99 |
|
|
}; |
100 |
root |
1.5 |
|
101 |
root |
1.1 |
$SCHEDULER->prio (-2); |
102 |
|
|
|