Lmdb.Types

Synopsis

• data Mode
  • = ReadOnly
  • | ReadWrite
• class ModeBool x where
• newtype Environment x = Environment {
  • getEnvironment :: MDB_env
  }
• newtype Transaction t = Transaction {
  • getTransaction :: MDB_txn
  }
• data Cursor t k v = Cursor {
  • cursorRef :: !CursorByFfi
  • cursorDatabaseSettings :: !(DatabaseSettings k v)
  }
• data MultiCursor t k v = MultiCursor {
  • multiCursorRef :: !CursorByFfi
  • multiCursorDatabaseSettings :: !(MultiDatabaseSettings k v)
  }
• data KeyValue k v = KeyValue {
  • keyValueKey :: !k
  • keyValueValue :: !v
  }
• data CursorByFfi
  • = CursorSafe !MDB_cursor
  • | CursorUnsafe !MDB_cursor'
• data DbiByFfi
  • = DbiSafe !MDB_dbi
  • | DbiUnsafe !MDB_dbi'
• data Database k v = Database {
  • databaseRef :: !DbiByFfi
  • databaseTheSettings :: !(DatabaseSettings k v)
  }
• data MultiDatabase k v = MultiDatabase {
  • multiDatabaseRef :: DbiByFfi
  • multiDatabaseTheSettings :: !(MultiDatabaseSettings k v)
  }
• data DatabaseSettings k v = DatabaseSettings {
  • databaseSettingsSort :: !(Sort ks k)
  • databaseSettingsEncodeKey :: !(Encoding ks k)
  • databaseSettingsDecodeKey :: !(Decoding k)
  • databaseSettingsEncodeValue :: !(Encoding vs v)
  • databaseSettingsDecodeValue :: !(Decoding v)
  }
• data MultiDatabaseSettings k v = MultiDatabaseSettings {
  • multiDatabaseSettingsSortKey :: Sort ks k
  • multiDatabaseSettingsSortValue :: Sort vs v
  • multiDatabaseSettingsEncodeKey :: !(Encoding ks k)
  • multiDatabaseSettingsDecodeKey :: !(Decoding k)
  • multiDatabaseSettingsEncodeValue :: !(Encoding vs v)
  • multiDatabaseSettingsDecodeValue :: !(Decoding v)
  }
• data Codec s a = Codec {
  • codecEncode :: !(Encoding s a)
  • codecDecode :: !(Decoding a)
  }
• newtype Decoding a = Decoding {
  • getDecoding :: CSize -> Ptr Word8 -> IO a
  }
• data Encoding s a where
  • EncodingVariable :: (a -> SizedPoke) -> Encoding Variable a
  • EncodingFixed :: CSize -> (a -> FixedPoke) -> Encoding Fixed a
  • EncodingMachineWord :: (a -> FixedPoke) -> Encoding MachineWord a
• data SizedPoke = SizedPoke {
  • sizedPokeSize :: !CSize
  • sizedPokePoke :: !(Ptr Word8 -> IO ())
  }
• newtype FixedPoke = FixedPoke {
  • getFixedPoke :: Ptr Word8 -> IO ()
  }
• data Size
  • = Variable
  • | Fixed
  • | MachineWord
• data NativeSort s where
  • NativeSortLexographic :: NativeSort Variable
  • NativeSortLexographicBackward :: NativeSort Variable
  • NativeSortInteger :: NativeSort MachineWord
• data CustomSort a
  • = CustomSortSafe (a -> a -> Ordering)
  • | CustomSortUnsafe (FunPtr (Ptr MDB_val -> Ptr MDB_val -> IO CInt))
• data Sort s a where
  • SortNative :: NativeSort s -> Sort s a
  • SortCustom :: CustomSort a -> Sort Variable a
• data Movement k
  • = MovementNext
  • | MovementPrev
  • | MovementFirst
  • | MovementLast
  • | MovementAt !k
  • | MovementAtGte !k
  • | MovementCurrent

Documentation