Function decode_trunk_value

atomic-core/src/crdt/tables.rs:752–775

Decode trunk data from variable-length bytes. Returns `None` if the bytes are invalid or too short.

(bytes: &[u8])

///
/// Returns `None` if the bytes are invalid or too short.
pub fn decode_trunk_value(bytes: &[u8]) -> Option<SerializedTrunk> {
    // Minimum size: 8 (inode) + 1 (state) + 1 (encoding) + 4 (path_len) = 14
    if bytes.len() < 14 {
        return None;
    }

    let inode = Inode::new(u64::from_le_bytes(bytes[0..8].try_into().ok()?));
    let state = decode_trunk_state(bytes[8]);
    let encoding = bytes[9];
    let path_len = u32::from_le_bytes(bytes[10..14].try_into().ok()?) as usize;

    if bytes.len() < 14 + path_len {
        return None;
    }

    let path = String::from_utf8(bytes[14..14 + path_len].to_vec()).ok()?;

    Some(SerializedTrunk {
        inode,
        state,
        encoding,
        path,
    })
}

// Tests