Function read_opt_string

src/models/serializer/mod.rs:68–78

(bufman: &BufferManager, cursor: u64)

}

pub fn read_opt_string(bufman: &BufferManager, cursor: u64) -> Result<Option<String>, BufIoError> {
    let len = read_len(bufman, cursor)? as usize;
    if len == 0 {
        return Ok(None);
    }
    let mut buf = vec![0; len];
    bufman.read_with_cursor(cursor, &mut buf)?;
    let str = String::from_utf8(buf)
        .map_err(|err| BufIoError::Io(io::Error::new(io::ErrorKind::InvalidData, err)))?;
    Ok(Some(str))
}

pub trait SimpleSerialize: Sized {
    fn serialize(&self, bufman: &BufferManager, cursor: u64) -> Result<u32, BufIoError>;