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#! perl # mandatory |
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|
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our $SCHEDULE_INTERVAL = $cf::CFG{extractor_schedule_interval} || 3600; |
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|
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use JSON::XS; |
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|
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our $db_mapinfo = cf::db_table "tag-mapinfo"; # info/cache for maps |
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our $db_target = cf::db_table "tag-target"; # tag => maps |
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|
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sub remove_tag_target { |
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my ($txn, $tag, $target) = @_; |
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# - U O |
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|
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utf8::encode $tag; |
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BDB::db_get $db_target, $txn, $tag, my $data; |
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my @tags = split /\x00/, $data; |
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@tags = grep $_ ne $target, @tags; |
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|
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if (@tags) { |
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BDB::db_put $db_target, $txn, $tag, join "\x00", @tags; |
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} else { |
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BDB::db_del $db_target, $txn, $tag; |
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} |
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} |
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|
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sub add_tag_target { |
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my ($txn, $tag, $target) = @_; |
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|
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utf8::encode $tag; |
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BDB::db_put $db_target, $txn, $tag, my $data; |
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my @tags = split /\x00/, $data; |
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push @tags, $target; |
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BDB::db_put $db_target, $txn, $tag, join "\x00", @tags; |
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} |
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|
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sub scan_map($$) { |
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my ($key, $file) = @_; |
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# unicode key, octets file |
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|
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Coro::AIO::aio_stat $file |
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and next; |
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|
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my $hash = join ",", 1, (stat _)[7,9], $file; |
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|
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my $txn = $cf::DB_ENV->txn_begin; |
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|
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utf8::encode $key; |
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BDB::db_get $db_mapinfo, $txn, $key, my $data; |
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|
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unless ($!) { |
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$data = decode_json $data; |
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return if $data->{hash} eq $hash; |
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|
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# remove all old tags unconditionally |
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remove_tag_target $txn, $_, $key |
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for @{ $data->{tags} }; |
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} |
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|
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my $f = new_from_file cf::object::thawer $file |
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or return; |
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|
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my @tags = sort $f->extract_tags; |
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$data = encode_json { hash => $hash, tags => \@tags }; |
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|
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BDB::db_put $db_mapinfo, $txn, $key, $data; |
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|
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# add all tags |
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add_tag_target $txn, $_, $key |
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for @tags; |
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|
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# we don't actually care if it succeeds or not, as we |
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# will just retry an hour later |
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BDB::db_txn_finish $txn; |
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|
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cf::debug "tag-updated $file (= $key) <@tags>\n" |
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if @tags; |
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} |
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|
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sub scan_static { |
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my $maps = cf::map::static_maps; |
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|
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scan_map "s$_", "$cf::MAPDIR$_.map" |
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for @$maps; |
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} |
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|
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sub reload { |
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my $guard = cf::lock_acquire "map-tags::reload"; |
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|
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my $start = AE::time; |
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|
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# 1. check for maps no longer existing |
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{ |
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my @delkeys; |
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|
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my $cursor = $db_mapinfo->cursor; |
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for (;;) { |
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BDB::db_c_get $cursor, my $key, my $data, BDB::NEXT; |
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last if $!; |
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|
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my $data = JSON::XS::decode_json $data; |
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my ($ver, undef, undef, $path) = split /,/, $data->{hash}, 4; |
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push @delkeys, [$key, $data->{tags}] |
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if $ver != 1 || Coro::AIO::aio_stat $path; |
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} |
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BDB::db_c_close $cursor; |
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|
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for (@delkeys) { |
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my ($key, $tags) = @$_; |
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my $txn = $cf::DB_ENV->txn_begin; |
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BDB::db_del $db_mapinfo, $txn, $key; |
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for my $tag (@{ $tags || [] }) { |
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remove_tag_target $txn, $tag, $key; |
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} |
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BDB::db_txn_finish $txn; |
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} |
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} |
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|
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# 2. scan all static maps |
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scan_static $cf::MAPDIR, "/"; |
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|
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# 3. scan all dynamic maps |
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for my $path (@{ cf::map::tmp_maps or [] }, @{ cf::map::random_maps or [] }) { |
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# my $map = cf::map::find $path; |
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# extract_map_tags "t/$map", $path; |
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} |
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|
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# now hunt for all per-player maps |
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# scan_dir $cf::PLAYERDIR |
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# for my $login (@{ cf::player::list_logins or [] }) { |
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# for my $path (@{ cf::player::maps $login or [] }) { |
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# cf::cede_to_tick; |
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# |
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# $path =~ /^~[^\/]+(\/.*)$/ |
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# or next; # doh |
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# |
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# my $base = cf::map::find $1; |
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# |
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# # skip maps without base maps on the assumption |
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# # that those are old, unresettable maps |
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# next unless $base; |
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# |
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# # skip unresettable maps, for speed |
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# next if $base->{deny_reset}; |
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# |
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# my $map = cf::map::find $path; |
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# |
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# if ($map->{deny_reset}) { |
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# warn "found noreset map with resettable base map, resetting: $path\n"; |
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# delete $map->{deny_reset}; |
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# } |
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# } |
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# } |
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|
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cf::info sprintf "map-tag scan finished (%fs)\n", AE::time - $start; |
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} |
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|
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our $RELOAD_SCHEDULER = cf::periodic $SCHEDULE_INTERVAL, Coro::unblock_sub { |
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$Coro::current->prio (Coro::PRIO_MIN); |
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$Coro::current->desc ("map-tag scanner"); |
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reload; |
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}; |
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|
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cf::post_init { |
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$RELOAD_SCHEDULER->invoke (0); # force at startup |
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}; |
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|
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# find all objects with the given tag, or at least try to |
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sub find($) { |
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my ($tag) = @_; |
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|
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utf8::encode (my $key = $tag); |
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BDB::db_get $db_target, undef, $key, my $data; |
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utf8::decode $data; |
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|
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map { $_->load; $_->find_tagged_objects ($tag) } |
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grep $_, |
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map { cf::map::find $_ } |
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grep s/^s//, |
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split /\x00/, $data |
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} |
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|
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sub unload { |
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my $guard = cf::lock_acquire "map-tags::reload"; |
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|
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BDB::db_close $db_target; |
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BDB::db_close $db_mapinfo; |
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} |
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