throwErrnoIfNullRetry

throwErrnoIfNullRetry :: String -> IO (Ptr a) -> IO (Ptr a)
base Foreign.C.Error
Throw an IOError corresponding to the current value of getErrno if the IO action returns nullPtr, but retry in case of an interrupted operation.
throwErrnoIfNullRetryMayBlock :: String -> IO (Ptr a) -> IO b -> IO (Ptr a)
base Foreign.C.Error
as throwErrnoIfNullRetry, but checks for operations that would block.