Streamly.External.LMDB.Internal.Foreign

Documentation

type MDB_mode_t = Word16

type MDB_dbi_t = Word32

type MDB_cursor_op_t = Word32

data MDB_env

data MDB_txn

data MDB_cursor

data MDB_val

Constructors

MDB_val

Fields

• mv_size :: !CSize
• mv_data :: !(Ptr CChar)

Instances

Storable MDB_val

Defined in Streamly.External.LMDB.Internal.Foreign

Methods

sizeOf :: MDB_val -> Int

alignment :: MDB_val -> Int

peekElemOff :: Ptr MDB_val -> Int -> IO MDB_val

pokeElemOff :: Ptr MDB_val -> Int -> MDB_val -> IO ()

peekByteOff :: Ptr b -> Int -> IO MDB_val

pokeByteOff :: Ptr b -> Int -> MDB_val -> IO ()

peek :: Ptr MDB_val -> IO MDB_val

poke :: Ptr MDB_val -> MDB_val -> IO ()

c_mdb_strerror :: CInt -> IO CString

c_mdb_env_create :: Ptr (Ptr MDB_env) -> IO CInt

c_mdb_env_set_mapsize :: Ptr MDB_env -> CSize -> IO CInt

c_mdb_env_set_maxreaders :: Ptr MDB_env -> CUInt -> IO CInt

c_mdb_env_set_maxdbs :: Ptr MDB_env -> MDB_dbi_t -> IO CInt

c_mdb_env_open :: Ptr MDB_env -> CString -> CUInt -> MDB_mode_t -> IO CInt

c_mdb_txn_begin :: Ptr MDB_env -> Ptr MDB_txn -> CUInt -> Ptr (Ptr MDB_txn) -> IO CInt

c_mdb_dbi_open :: Ptr MDB_txn -> CString -> CUInt -> Ptr MDB_dbi_t -> IO CInt

c_mdb_txn_commit :: Ptr MDB_txn -> IO CInt

c_mdb_txn_abort :: Ptr MDB_txn -> IO ()

c_mdb_cursor_open :: Ptr MDB_txn -> MDB_dbi_t -> Ptr (Ptr MDB_cursor) -> IO CInt

c_mdb_cursor_get :: Ptr MDB_cursor -> Ptr MDB_val -> Ptr MDB_val -> MDB_cursor_op_t -> IO CInt

c_mdb_cursor_close :: Ptr MDB_cursor -> IO ()

c_mdb_get :: Ptr MDB_txn -> MDB_dbi_t -> Ptr MDB_val -> Ptr MDB_val -> IO CInt

c_mdb_put :: Ptr MDB_txn -> MDB_dbi_t -> Ptr MDB_val -> Ptr MDB_val -> CUInt -> IO CInt

c_mdb_put_ :: Ptr MDB_txn -> MDB_dbi_t -> Ptr CChar -> CSize -> Ptr CChar -> CSize -> CUInt -> IO CInt

c_mdb_drop :: Ptr MDB_txn -> MDB_dbi_t -> CInt -> IO CInt

data LMDB_Error

Constructors

LMDB_Error

Fields

• e_context :: String
• e_description :: String
• e_code :: Either Int MDB_ErrCode

Instances

Show LMDB_Error

Defined in Streamly.External.LMDB.Internal.Foreign

Methods

showsPrec :: Int -> LMDB_Error -> ShowS

show :: LMDB_Error -> String

showList :: [LMDB_Error] -> ShowS

Exception LMDB_Error

Defined in Streamly.External.LMDB.Internal.Foreign

Methods

toException :: LMDB_Error -> SomeException

fromException :: SomeException -> Maybe LMDB_Error

displayException :: LMDB_Error -> String

data MDB_ErrCode

Constructors

MDB_KEYEXIST

MDB_NOTFOUND

MDB_PAGE_NOTFOUND

MDB_CORRUPTED

MDB_PANIC

MDB_VERSION_MISMATCH

MDB_INVALID

MDB_MAP_FULL

MDB_DBS_FULL

MDB_READERS_FULL

MDB_TLS_FULL

MDB_TXN_FULL

MDB_CURSOR_FULL

MDB_PAGE_FULL

MDB_MAP_RESIZED

MDB_INCOMPATIBLE

MDB_BAD_RSLOT

MDB_BAD_TXN

MDB_BAD_VALSIZE

MDB_BAD_DBI

Instances

Eq MDB_ErrCode

Defined in Streamly.External.LMDB.Internal.Foreign

Methods

(==) :: MDB_ErrCode -> MDB_ErrCode -> Bool

(/=) :: MDB_ErrCode -> MDB_ErrCode -> Bool

Show MDB_ErrCode

Defined in Streamly.External.LMDB.Internal.Foreign

Methods

showsPrec :: Int -> MDB_ErrCode -> ShowS

show :: MDB_ErrCode -> String

showList :: [MDB_ErrCode] -> ShowS

errCodes :: [(MDB_ErrCode, Int)]

numToErrVal :: Int -> Either Int MDB_ErrCode

throwLMDBErrNum :: String -> CInt -> IO noReturn

mdb_notfound :: CInt

mdb_rdonly :: CUInt

mdb_notls :: CUInt

mdb_nosubdir :: CUInt

mdb_nooverwrite :: CUInt

mdb_append :: CUInt

mdb_create :: CUInt

combineOptions :: [CUInt] -> CUInt

mdb_first :: MDB_cursor_op_t

mdb_last :: MDB_cursor_op_t

mdb_next :: MDB_cursor_op_t

mdb_prev :: MDB_cursor_op_t

mdb_set_range :: MDB_cursor_op_t

mdb_env_create :: IO (Ptr MDB_env)

mdb_env_set_mapsize :: Ptr MDB_env -> Int -> IO ()

mdb_env_set_maxdbs :: Ptr MDB_env -> Int -> IO ()

mdb_env_set_maxreaders :: Ptr MDB_env -> Int -> IO ()

mdb_env_open :: Ptr MDB_env -> FilePath -> CUInt -> IO ()

mdb_txn_begin :: Ptr MDB_env -> Ptr MDB_txn -> CUInt -> IO (Ptr MDB_txn)

mdb_txn_commit :: Ptr MDB_txn -> IO ()

mdb_cursor_open :: Ptr MDB_txn -> MDB_dbi_t -> IO (Ptr MDB_cursor)

mdb_dbi_open :: Ptr MDB_txn -> Maybe String -> CUInt -> IO MDB_dbi_t

mdb_put :: Ptr MDB_txn -> MDB_dbi_t -> Ptr MDB_val -> Ptr MDB_val -> CUInt -> IO ()

mdb_put_ :: Ptr MDB_txn -> MDB_dbi_t -> Ptr CChar -> CSize -> Ptr CChar -> CSize -> CUInt -> IO ()

mdb_clear :: Ptr MDB_txn -> MDB_dbi_t -> IO ()

withCStringMaybe :: Maybe String -> (CString -> IO a) -> IO a

Use a nullable CString.