Copyright | (c) 2012-2013 The leveldb-haskell Authors |
---|---|
License | BSD3 |
Maintainer | kim.altintop@gmail.com |
Stability | experimental |
Portability | non-portable |
Safe Haskell | None |
Language | Haskell2010 |
- Types
- Smart constructors and deconstructors
- combinators
- Utilities
- data DB = DB LevelDBPtr Options' (IORef Bool)
- data Comparator'
- data FilterPolicy'
- data Options' = Options' {
- _optsPtr :: !OptionsPtr
- _cachePtr :: !(Maybe CachePtr)
- _comp :: !(Maybe Comparator')
- _fpPtr :: !(Maybe (Either FilterPolicyPtr FilterPolicy'))
- unsafeClose :: DB -> IO ()
- freeCReadOpts :: ReadOptionsPtr -> IO ()
- freeComparator :: Comparator' -> IO ()
- freeFilterPolicy :: FilterPolicy' -> IO ()
- freeOpts :: Options' -> IO ()
- mkCReadOpts :: ReadOptions -> IO ReadOptionsPtr
- mkComparator :: String -> (BS.ByteString -> BS.ByteString -> Ordering) -> IO Comparator'
- mkCompareFun :: (BS.ByteString -> BS.ByteString -> Ordering) -> CompareFun
- mkCreateFilterFun :: ([BS.ByteString] -> BS.ByteString) -> CreateFilterFun
- mkFilterPolicy :: FilterPolicy -> IO FilterPolicy'
- mkKeyMayMatchFun :: (BS.ByteString -> BS.ByteString -> Bool) -> KeyMayMatchFun
- mkOpts :: Options -> IO Options'
- withCWriteOpts :: WriteOptions -> (WriteOptionsPtr -> IO a) -> IO a
- withCReadOpts :: ReadOptions -> (ReadOptionsPtr -> IO a) -> IO a
- throwIfErr :: String -> (ErrPtr -> IO a) -> IO a
- cSizeToInt :: CSize -> Int
- intToCSize :: Int -> CSize
- intToCInt :: Int -> CInt
- cIntToInt :: CInt -> Int
- boolToNum :: Num b => Bool -> b
Types
data Comparator' Source
Internal representation of a Comparator
data FilterPolicy' Source
Internal representation of a FilterPolicy
Internal representation of the Options
Options' | |
|
unsafeClose :: DB -> IO () Source
Closes the database.
The function is safe in that it doesn't double-free the pointer, but is
unsafe because other functions which use the DB
handle do not check if
the handle is live. If the handle is used after it was freed, the program
will segfault (internally, leveldb performs a delete
on the pointer).
Smart constructors and deconstructors
freeCReadOpts :: ReadOptionsPtr -> IO () Source
freeComparator :: Comparator' -> IO () Source
freeFilterPolicy :: FilterPolicy' -> IO () Source
mkComparator :: String -> (BS.ByteString -> BS.ByteString -> Ordering) -> IO Comparator' Source
mkCompareFun :: (BS.ByteString -> BS.ByteString -> Ordering) -> CompareFun Source
mkCreateFilterFun :: ([BS.ByteString] -> BS.ByteString) -> CreateFilterFun Source
mkKeyMayMatchFun :: (BS.ByteString -> BS.ByteString -> Bool) -> KeyMayMatchFun Source
combinators
withCWriteOpts :: WriteOptions -> (WriteOptionsPtr -> IO a) -> IO a Source
withCReadOpts :: ReadOptions -> (ReadOptionsPtr -> IO a) -> IO a Source
Utilities
cSizeToInt :: CSize -> Int Source
intToCSize :: Int -> CSize Source