flush :: FileSystem -> File -> IO ()
flush (FileSystem fs) (File f) =
  throwErrnoIfMinus1_ "flush" (c_hdfs_flush fs f) >> return ()
flush :: FileSystem -> File -> IO ()
flush (FileSystem fs) (File f) =
  throwErrnoIfMinus1_ "flush" (c_hdfs_flush fs f) >> return ()
flush (FileSystem fs) (File f) =
  throwErrnoIfMinus1_ "flush" (c_hdfs_flush fs f) >> return ()