Function write_efficient_zeroes

pub(crate) async fn write_efficient_zeroes<S: StorageExt>(
    storage: S,
    offset: u64,
    length: u64,
    allocate: bool,
) -> Result<()>

Write zeroes efficiently to the given area.

This implements write_zeroes() and write_allocated_zeroes().

If allocate is true, use Storage::pure_write_allocated_zeroes(); else, use Storage::pure_write_zeroes().

If the pure_* call fails with io::ErrorKind::Unsupported, fall back to write_full_zeroes().