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Comparing deliantra/server/ext/map-scheduler.ext (file contents):
Revision 1.14 by root, Fri Jan 5 01:06:40 2007 UTC vs.
Revision 1.18 by root, Fri Jan 5 21:51:41 2007 UTC

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
6our $DEACTIVATE_TIMEOUT = 20; # number of seconds after which maps get deactivated to save cpu 7our $DEACTIVATE_TIMEOUT = 20; # number of seconds after which maps get deactivated to save cpu
7our $SWAP_TIMEOUT = 35; # number of seconds after which maps inactive get swapped out 8our $SWAP_TIMEOUT = 35; # number of seconds after which maps inactive get swapped out
8our $SCHEDULE_INTERVAL = 2; # time the map scheduler sleeps between runs 9our $SCHEDULE_INTERVAL = 2; # time the map scheduler sleeps between runs
9our $SAVE_TIMEOUT = 20; # save maps every n seconds 10our $SAVE_TIMEOUT = 20; # save maps every n seconds
10our $SAVE_INTERVAL = 0.1; # save at max. one map every $SAVE_INTERVAL 11our $SAVE_INTERVAL = 0.1; # save at max. one map every $SAVE_INTERVAL
11 12
12cf::coro { 13cf::async_ext {
13 $Coro::current->prio (Coro::PRIO_MIN); 14 $Coro::current->prio (Coro::PRIO_MIN);
14 # load the header of swapped-out maps. 15 # load the header of swapped-out maps.
15 # this is not a correctness issue, it simply saves diskspace 16 # this is not a correctness issue, it simply saves diskspace
16 # because old files will get cleaned up on reset time 17 # because old files will get cleaned up on reset time
17 Coro::Timer::sleep 5; 18 Coro::Timer::sleep 1;
18 19
19 my $files = Coro::AIO::aio_readdir cf::localdir . "/" . cf::tmpdir; 20 my $files = Coro::AIO::aio_readdir cf::localdir . "/" . cf::tmpdir;
20 21
21 for my $map (@$files) { 22 for my $map (@$files) {
22 utf8::decode $map; 23 utf8::decode $map;
… …
27 } 28 }
28 29
29 #TODO: should also preload random maps... 30 #TODO: should also preload random maps...
30}; 31};
31 32
32our $SCHEDULER = cf::coro { 33our $SCHEDULER = cf::async_ext {
33 while () { 34 while () {
34 Coro::Timer::sleep $SCHEDULE_INTERVAL; 35 Coro::Timer::sleep $SCHEDULE_INTERVAL;
35 36
36 # this weird form of iteration over values is used because 37 # this weird form of iteration over values is used because
37 # the hash changes underneath us frequently, and for 38 # the hash changes underneath us frequently, and for
… …
68 } 69 }
69}; 70};
70 71
71$SCHEDULER->prio (-2); 72$SCHEDULER->prio (-2);
72 73
73# map load prefetch 74# map load prefetch for tiled maps, possibly exits, too
74cf::map->attach ( 75cf::map->attach (
75 on_enter => sub { 76 on_enter => sub {
76 my ($map, $pl) = @_; 77 my ($map, $pl) = @_;
77 78
78 # floodfill surrounging maps, asynchronously 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
79 }, 101 },
80); 102);
81 103

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