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Comparing deliantra/server/ext/map-scheduler.ext (file contents):
Revision 1.47 by root, Tue Apr 15 14:21:04 2008 UTC vs.
Revision 1.48 by root, Tue Sep 23 04:29:11 2008 UTC

… …
9our $SCHEDULE_INTERVAL = $cf::CFG{schedule_interval} || 5; # time the map scheduler sleeps between runs 9our $SCHEDULE_INTERVAL = $cf::CFG{schedule_interval} || 5; # time the map scheduler sleeps between runs
10our $SAVE_TIMEOUT = $cf::CFG{save_timeout} || 30; # save maps every n seconds 10our $SAVE_TIMEOUT = $cf::CFG{save_timeout} || 30; # save maps every n seconds
11our $SWAP_LOAD1 = $cf::CFG{swap_load1} || .1; # start aggressively swapping at this load 11our $SWAP_LOAD1 = $cf::CFG{swap_load1} || .1; # start aggressively swapping at this load
12our $SWAP_LOAD2 = $cf::CFG{swap_load2} || .6; # swap as fast as possible at this load 12our $SWAP_LOAD2 = $cf::CFG{swap_load2} || .6; # swap as fast as possible at this load
13 13
14cf::post_init {
14cf::async_ext { 15 cf::async_ext {
15 $Coro::current->{desc} = "startup map scanner"; 16 $Coro::current->{desc} = "startup map scanner";
16 $Coro::current->prio (Coro::PRIO_MIN); 17 $Coro::current->prio (Coro::PRIO_MIN);
17 18
18 # load the header of swapped-out maps. 19 # load the header of swapped-out maps.
19 # this is not a correctness issue, it simply saves diskspace 20 # this is not a correctness issue, it simply saves diskspace
20 # because old files will get cleaned up on reset time 21 # because old files will get cleaned up on reset time
21 Coro::Timer::sleep 0.25; 22 Coro::Timer::sleep 0.25;
22 23
23 for my $path (@{ cf::map::tmp_maps or [] }, @{ cf::map::random_maps or [] }) { 24 for my $path (@{ cf::map::tmp_maps or [] }, @{ cf::map::random_maps or [] }) {
24 cf::cede_to_tick; 25 cf::cede_to_tick;
25 cf::map::find $path; 26 cf::map::find $path;
26 } 27 }
27 28
28 # now hunt for resettable per-player maps 29 # now hunt for resettable per-player maps
29 for my $login (@{ cf::player::list_logins or [] }) { 30 for my $login (@{ cf::player::list_logins or [] }) {
30 for my $path (@{ cf::player::maps $login or [] }) { 31 for my $path (@{ cf::player::maps $login or [] }) {
31 cf::cede_to_tick; 32 cf::cede_to_tick;
32 33
33 $path =~ /^~[^\/]+(\/.*)$/ 34 $path =~ /^~[^\/]+(\/.*)$/
34 or next; # doh 35 or next; # doh
35 36
36 my $base = cf::map::find $1; 37 my $base = cf::map::find $1;
37 38
38 # skip maps without base maps on the assumption 39 # skip maps without base maps on the assumption
39 # that those are old, unresettable maps 40 # that those are old, unresettable maps
40 next unless $base; 41 next unless $base;
41 42
42 # skip unresettable maps, for speed 43 # skip unresettable maps, for speed
43 next if $base->{deny_reset}; 44 next if $base->{deny_reset};
44 45
45 my $map = cf::map::find $path; 46 my $map = cf::map::find $path;
46 47
47 if ($map->{deny_reset}) { 48 if ($map->{deny_reset}) {
48 warn "found noreset map with resettable base map, resetting: $path\n"; 49 warn "found noreset map with resettable base map, resetting: $path\n";
49 delete $map->{deny_reset}; 50 delete $map->{deny_reset};
51 }
50 } 52 }
51 } 53 }
52 } 54 };
53};
54 55
55our $SCHEDULER = cf::async_ext { 56 our $SCHEDULER = cf::async_ext {
56 $Coro::current->{desc} = "map scheduler"; 57 $Coro::current->{desc} = "map scheduler";
57 $Coro::current->prio (Coro::PRIO_MAX); 58 $Coro::current->prio (Coro::PRIO_MAX);
58 59
59 while () { 60 while () {
60 if ($cf::LOADAVG > $SWAP_LOAD2) { 61 if ($cf::LOADAVG > $SWAP_LOAD2) {
61 cf::wait_for_tick; 62 cf::wait_for_tick;
62 } else { 63 } else {
63 Coro::EV::timer_once $SCHEDULE_INTERVAL; 64 Coro::EV::timer_once $SCHEDULE_INTERVAL;
64 } 65 }
65 66
66 # this weird form of iteration over values is used because 67 # this weird form of iteration over values is used because
67 # the hash changes underneath us frequently, and for 68 # the hash changes underneath us frequently, and for
68 # keeps a direct reference to the value without (in 5.8 perls) 69 # keeps a direct reference to the value without (in 5.8 perls)
69 # keeping a reference, so this is prone to crashes or worse. 70 # keeping a reference, so this is prone to crashes or worse.
70 my @maps = keys %cf::MAP; 71 my @maps = keys %cf::MAP;
71 for (@maps) { 72 for (@maps) {
72 my $map = $cf::MAP{$_} 73 my $map = $cf::MAP{$_}
73 or next; 74 or next;
74 $map->valid or next; 75 $map->valid or next;
75 76
76 eval { 77 eval {
77 # not yet, because maps might become visible to players nearby 78 # not yet, because maps might become visible to players nearby
78 # we need to remove the map from %cf::MAP and all tiled map links 79 # we need to remove the map from %cf::MAP and all tiled map links
79# if ($last_access + $DEACTIVATE_TIMEOUT <= $cf::RUNTIME) { 80# if ($last_access + $DEACTIVATE_TIMEOUT <= $cf::RUNTIME) {
80# $map->deactivate; 81# $map->deactivate;
81# delete $map->{active}; 82# delete $map->{active};
82# } 83# }
83 if ($map->should_reset) { 84 if ($map->should_reset) {
84 $map->reset; 85 $map->reset;
85 } elsif ($map->in_memory == cf::MAP_ACTIVE) { 86 } elsif ($map->in_memory == cf::MAP_ACTIVE) {
86 my $max_idle = cf::clamp +(cf::lerp $cf::LOADAVG, $SWAP_LOAD1, $SWAP_LOAD2, $SWAP_TIMEOUT, $cf::TICK * 1.5), 87 my $max_idle = cf::clamp +(cf::lerp $cf::LOADAVG, $SWAP_LOAD1, $SWAP_LOAD2, $SWAP_TIMEOUT, $cf::TICK * 1.5),
87 $cf::TICK * 1.5, $SWAP_TIMEOUT; 88 $cf::TICK * 1.5, $SWAP_TIMEOUT;
88 89
89 if ($map->last_access + $max_idle <= $cf::RUNTIME && !$map->players) { 90 if ($map->last_access + $max_idle <= $cf::RUNTIME && !$map->players) {
90 $map->swap_out; 91 $map->swap_out;
91 } elsif ($map->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) { 92 } elsif ($map->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) {
92 $map->save; 93 $map->save;
93 $map->{last_save} -= rand; # randomise map save times a bit 94 $map->{last_save} -= rand; # randomise map save times a bit
95 }
94 } 96 }
95 } 97 };
98 warn $@ if $@;
99 cf::cede_to_tick;
96 }; 100 };
97 warn $@ if $@;
98 cf::cede_to_tick;
99 }; 101 }
100 } 102 };
103
104 $SCHEDULER->prio (-2);
101}; 105};
102 106
103$SCHEDULER->prio (-2);
104 107

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