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#! perl |
| 2 |
|
| 3 |
# why this is an extension is a good question. next question. |
| 4 |
|
| 5 |
use Fcntl; |
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|
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use Coro; |
| 8 |
use Coro::AIO; |
| 9 |
|
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our $emergency_position = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37]; |
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|
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our $DEACTIVATE_TIMEOUT = 60; # number of seconds after which maps get deactivated to save cpu |
| 13 |
our $SWAP_TIMEOUT = 600; # number of seconds after which maps inactive get swapped out |
| 14 |
our $SCHEDULE_INTERVAL = 8; # time the map scheduler sleeps between runs |
| 15 |
our $SAVE_TIMEOUT = 60; # save maps every n seconds |
| 16 |
our $SAVE_INTERVAL = 0.4; # save at max. one map every $SAVE_HOLD |
| 17 |
our $MAX_RESET = 7200; |
| 18 |
|
| 19 |
$DEACTIVATE_TIMEOUT = 3;#d# |
| 20 |
$SWAP_TIMEOUT = 5;#d# |
| 21 |
$SCHEDULE_INTERVAL = 1; |
| 22 |
|
| 23 |
$cf::LINK_MAP ||= do { |
| 24 |
my $map = cf::map::new; |
| 25 |
|
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$map->width (1); |
| 27 |
$map->height (1); |
| 28 |
$map->alloc; |
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$map->path ("{link}"); |
| 30 |
$map->{path} = bless { path => "{link}" }, "cf::path"; |
| 31 |
$map->in_memory (cf::MAP_IN_MEMORY); |
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|
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$map |
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}; |
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|
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{ |
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package cf::path; |
| 38 |
|
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sub new { |
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my ($class, $path, $base) = @_; |
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|
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my %res; |
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|
| 44 |
if ($path =~ s{^~([^/]+)?}{}) { |
| 45 |
$res{user_rel} = 1; |
| 46 |
|
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if (defined $1) { |
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$res{user} = $1; |
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} elsif ($base =~ m{^~([^/]+)/}) { |
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$res{user} = $1; |
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} else { |
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warn "cannot resolve user-relative path without user <$path,$base>\n"; |
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} |
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} elsif ($path =~ /^\//) { |
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# already absolute |
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} else { |
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$base =~ s{[^/]+/?$}{}; |
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return $class->new ("$base/$path"); |
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} |
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|
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for ($path) { |
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redo if s{/\.?/}{/}; |
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redo if s{/[^/]+/\.\./}{/}; |
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} |
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|
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$res{path} = $path; |
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|
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bless \%res, $class |
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} |
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|
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# the name / primary key / in-game path |
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sub as_string { |
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my ($self) = @_; |
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|
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$self->{user_rel} |
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? "~$self->{user}$self->{path}" |
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: $self->{path} |
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} |
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|
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# escape the /'s in the path |
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sub escaped_path { |
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# ∕ is U+2215 |
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(my $path = $_[0]{path}) =~ s/\//∕/g; |
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$path |
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} |
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|
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# the original (read-only) location |
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sub load_path { |
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my ($self) = @_; |
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|
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sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} |
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} |
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|
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# the temporary/swap location |
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sub save_path { |
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my ($self) = @_; |
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|
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$self->{user_rel} |
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? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->escaped_path |
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: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->escaped_path |
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} |
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|
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# the unique path, might be eq to save_path |
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sub uniq_path { |
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my ($self) = @_; |
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|
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$self->{user_rel} |
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? undef |
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: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->escaped_path |
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} |
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} |
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|
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sub write_runtime { |
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my $runtime = cf::localdir . "/runtime"; |
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|
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my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 |
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or return; |
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|
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my $value = $cf::RUNTIME; |
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(aio_write $fh, 0, (length $value), $value, 0) <= 0 |
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and return; |
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|
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aio_fsync $fh |
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and return; |
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|
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close $fh |
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or return; |
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|
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aio_rename "$runtime~", $runtime |
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and return; |
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|
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1 |
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} |
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|
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(Coro::async { |
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unless (write_runtime) { |
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warn "unable to write runtime file: $!"; |
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exit 1; |
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} |
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})->prio (Coro::PRIO_MAX); |
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|
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our $SCHEDULER = cf::coro { |
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while () { |
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Coro::Timer::sleep $SCHEDULE_INTERVAL; |
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|
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write_runtime |
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or warn "unable to write runtime file: $!"; |
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|
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for my $map (values %cf::MAP) { |
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eval { |
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next if $map->in_memory != cf::MAP_IN_MEMORY; |
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next if $map->players; |
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my $last_access = $map->last_access; |
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# not yet, because maps might become visible to players nearby |
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# we need a tiled meta map for this to work |
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# if ($last_access + $DEACTIVATE_TIMEOUT <= $cf::RUNTIME) { |
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# $map->deactivate; |
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# delete $map->{active}; |
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# } |
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if ($map->should_reset) { |
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$map->reset; |
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} elsif ($last_access + $SWAP_TIMEOUT <= $cf::RUNTIME) { |
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$map->swap_out; |
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Coro::Timer::sleep $SAVE_INTERVAL; |
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} elsif ($map->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) { |
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$map->save; |
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Coro::Timer::sleep $SAVE_INTERVAL; |
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} |
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}; |
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warn $@ if $@; |
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cede; |
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} |
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} |
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}; |
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$SCHEDULER->prio (-2); |
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|
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sub sync_job(&) { |
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my ($job) = @_; |
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|
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my $done; |
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my @res; |
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|
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Carp::confess "nested sync_job" if $cf::FREEZE; |
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|
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local $cf::FREEZE = 1; |
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|
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(Coro::async { |
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@res = eval { $job->() }; |
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warn $@ if $@; |
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$done = 1; |
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})->prio (Coro::PRIO_MAX); |
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|
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while (!$done) { |
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Coro::cede_notself; |
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Event::one_event unless Coro::nready; |
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} |
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|
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wantarray ? @res : $res[0] |
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} |
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|
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# and all this just because we cannot iterate over |
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# all maps in C++... |
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sub cf::map::change_all_map_light { |
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my ($change) = @_; |
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|
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$_->change_map_light ($change) for values %cf::MAP; |
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} |
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|
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sub try_load_header($) { |
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my ($path) = @_; |
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|
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utf8::encode $path; |
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aio_open $path, O_RDONLY, 0 |
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or return; |
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|
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my $map = cf::map::new |
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or return; |
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|
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$map->load_header ($path) |
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or return; |
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|
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$map->reset_time (0) if $map->reset_time > $cf::RUNTIME; |
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$map->reset_timeout (10);#d# |
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|
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$map->{load_path} = $path; |
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|
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$map |
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} |
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|
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sub cf::map::find_map_nb { |
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my ($path, $origin) = @_; |
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|
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warn "find_map_nb<$path,$origin>\n";#d# |
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|
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$path = ref $path ? $path : new cf::path $path, $origin && $origin->path; |
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my $key = $path->as_string; |
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|
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$cf::MAP{$key} || do { |
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# do it the slow way |
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my $map = try_load_header $path->save_path; |
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|
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if (!$map) { |
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$map = try_load_header $path->load_path |
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or return; |
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} |
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|
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$map or return; |
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|
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$map->instantiate; |
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$map->path ($key); |
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$map->{path} = $path; |
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|
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$map->per_player (0) if $path->{user_rel}; |
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|
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$map->reset if $map->should_reset; |
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|
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$cf::MAP{$key} = $map |
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} |
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} |
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|
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sub cf::map::find_map { |
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my ($path, $origin) = @_; |
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|
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$path = new cf::path $path, $origin && $origin->path; |
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my $key = $path->as_string; |
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|
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$cf::MAP{$key} || sync_job { |
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cf::map::find_map_nb $path; |
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} |
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} |
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|
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sub cf::map::do_load_nb { |
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my ($self) = @_; |
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|
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return 0 unless $self->in_memory == cf::MAP_SWAPPED; |
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|
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$self->in_memory (cf::MAP_LOADING); |
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|
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my $path = $self->{path}; |
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|
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$self->alloc; |
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$self->load_objects ($self->{load_path}, 1) |
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or return; |
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|
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if (my $uniq = $path->uniq_path) { |
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utf8::encode $uniq; |
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if (aio_open $uniq, O_RDONLY, 0) { |
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$self->clear_unique_items; |
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$self->load_objects ($uniq, 0); |
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} |
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} |
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|
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# now do the right thing for maps |
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$self->link_multipart_objects; |
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$self->fix_auto_apply; |
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$self->decay_objects; |
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$self->update_buttons; |
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$self->set_darkness_map; |
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$self->difficulty ($self->estimate_difficulty) |
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unless $self->difficulty; |
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$self->activate; |
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|
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$self->in_memory (cf::MAP_IN_MEMORY); |
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} |
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|
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sub cf::map::do_load { |
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my ($self) = @_; |
| 308 |
|
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warn "do_load<$self>\n";#d# |
| 310 |
|
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sync_job { |
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cf::map::do_load_nb $self; |
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}; |
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} |
| 315 |
|
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sub cf::map::save { |
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my ($self) = @_; |
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|
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warn "saving map ", $self->path; |
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|
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my $save = $self->{path}->save_path; utf8::encode $save; |
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my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; |
| 323 |
|
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if ($uniq) { |
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$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); |
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$self->save_objects ($uniq, cf::IO_UNIQUES); |
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} else { |
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$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); |
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} |
| 330 |
|
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$self->{load_path} = $save; |
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$self->{last_save} = $cf::RUNTIME; |
| 333 |
} |
| 334 |
|
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sub cf::map::swap_out { |
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my ($self) = @_; |
| 337 |
|
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return if $self->players; |
| 339 |
|
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$self->save if $self->in_memory == cf::MAP_IN_MEMORY; |
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$self->clear; |
| 342 |
$self->in_memory (cf::MAP_SWAPPED); |
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} |
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|
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sub cf::map::should_reset { |
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my ($map) = @_; |
| 347 |
|
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# TODO: safety, remove and allow resettable per-player maps |
| 349 |
return if $map->{path}{user_rel};#d# |
| 350 |
return if $map->per_player; |
| 351 |
return unless $map->reset_timeout; |
| 352 |
|
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my $time = $map->fixed_resettime ? $map->reset_time : $map->last_access; |
| 354 |
|
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$time + $map->reset_timeout < $cf::RUNTIME |
| 356 |
} |
| 357 |
|
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sub cf::map::reset { |
| 359 |
my ($self) = @_; |
| 360 |
|
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return if $self->players; |
| 362 |
return if $self->{path}{user_rel};#d# |
| 363 |
|
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warn "resetting map ", $self->path;#d# |
| 365 |
|
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utf8::encode (my $save = $self->{path}->save_path); |
| 367 |
aioreq_pri 3; IO::AIO::aio_unlink $save; |
| 368 |
aioreq_pri 3; IO::AIO::aio_unlink "$save.pst"; |
| 369 |
|
| 370 |
$self->clear; |
| 371 |
$self->in_memory (cf::MAP_SWAPPED); |
| 372 |
utf8::encode ($self->{load_path} = $self->{path}->load_path); |
| 373 |
} |
| 374 |
|
| 375 |
sub cf::object::player::enter_exit { |
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my ($ob, $exit) = @_; |
| 377 |
|
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return unless $ob->type == cf::PLAYER; |
| 379 |
|
| 380 |
my ($oldmap, $oldx, $oldy) = ($ob->map, $ob->x, $ob->y); |
| 381 |
|
| 382 |
#TODO: do this in the background, freeze the player if required |
| 383 |
sync_job { |
| 384 |
my ($map, $x, $y); |
| 385 |
|
| 386 |
if ($exit->slaying eq "!") { |
| 387 |
} else { |
| 388 |
my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path; |
| 389 |
|
| 390 |
$map = cf::map::find_map_nb $path->as_string; |
| 391 |
$map = $map->customise_for ($ob) if $map; |
| 392 |
($x, $y) = ($exit->stats->hp, $exit->stats->sp); |
| 393 |
} |
| 394 |
|
| 395 |
unless ($map) { |
| 396 |
$ob->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); |
| 397 |
|
| 398 |
# restore original map position |
| 399 |
($map, $x, $y) = ($oldmap, $oldx, $oldy); |
| 400 |
|
| 401 |
unless ($map) { |
| 402 |
$map = cf::map::find_map_nb $emergency_position->[0] |
| 403 |
or die "FATAL: cannot load emergency map\n"; |
| 404 |
$x = $emergency_position->[1]; |
| 405 |
$y = $emergency_position->[2]; |
| 406 |
} |
| 407 |
} |
| 408 |
|
| 409 |
# use -1, -1 as default coordinates, not 0, 0 |
| 410 |
($x, $y) = ($map->enter_x, $map->enter_y) |
| 411 |
if $x <=0 && $y <= 0; |
| 412 |
|
| 413 |
warn "entering ", $map->path, " at ($x, $y)\n";#d# |
| 414 |
$map->do_load_nb; |
| 415 |
$ob->enter_map ($map, $x, $y); |
| 416 |
} |
| 417 |
} |
| 418 |
|
| 419 |
sub cf::map::customise_for { |
| 420 |
my ($map, $ob) = @_; |
| 421 |
|
| 422 |
if ($map->per_player) { |
| 423 |
return cf::map::find_map_nb "~" . $ob->name . "/" . $map->{path}{path}; |
| 424 |
} |
| 425 |
|
| 426 |
$map |
| 427 |
} |
| 428 |
|
| 429 |
sub cf::map::emergency_save { |
| 430 |
local $cf::FREEZE = 1; |
| 431 |
|
| 432 |
warn "enter emergency map save\n"; |
| 433 |
|
| 434 |
my $saver = async { |
| 435 |
warn "begin emergency map save\n"; |
| 436 |
$_->save for values %cf::MAP; |
| 437 |
}; |
| 438 |
$saver->prio (Coro::PRIO_MAX); |
| 439 |
$saver->join; |
| 440 |
|
| 441 |
warn "emergency map save drain\n"; |
| 442 |
Event::one_event while IO::AIO::nreqs; |
| 443 |
warn "end emergency map save\n"; |
| 444 |
} |
| 445 |
|
