Safe Haskell	None
Language	Haskell2010

System.IO.RandomAccessFile.MMap

Synopsis

data MMaped
data family AccessParams a
extendFile :: MMaped -> Size -> IO ()

Documentation

data MMaped Source #

Instances

FileAccess MMaped Source #
Instance details Defined in System.IO.RandomAccessFile.MMap Associated Types data AccessParams MMaped :: Type Source # Methods initFile :: AccessParams MMaped -> FilePath -> IO MMaped Source # readBytes :: MMaped -> Offset -> Size -> IO ByteString Source # writeBytes :: MMaped -> Offset -> ByteString -> IO () Source # currentFileSize :: MMaped -> IO Size Source # syncFile :: MMaped -> IO () Source # closeFile :: MMaped -> IO () Source #
data AccessParams MMaped Source #
Instance details Defined in System.IO.RandomAccessFile.MMap data AccessParams MMaped = MMapedParams Size Bool

data family AccessParams a Source #

Instances

data AccessParams MMaped Source #
Instance details Defined in System.IO.RandomAccessFile.MMap data AccessParams MMaped = MMapedParams Size Bool
data AccessParams Simple Source #
Instance details Defined in System.IO.RandomAccessFile.Simple data AccessParams Simple = SimpleParams
data AccessParams Threaded Source #
Instance details Defined in System.IO.RandomAccessFile.Threaded data AccessParams Threaded = ThreadedParams Size
data AccessParams (Cached a) Source #
Instance details Defined in System.IO.RandomAccessFile.Cached data AccessParams (Cached a) = CachedBackend { backendParams :: AccessParams a cachePageSize :: Size cacheCapacity :: Int cacheFlushPeriod :: Int }

extendFile :: MMaped -> Size -> IO () Source #

Resize file to be at least of specified size. Does nothing if size of file is already greater or equal to specified. While file is resized, all reading and writing to it are locked.