datamodel.rs

mod block_pool;
mod file_table;
mod index_table;
mod metadata;

pub use block_pool::*;
pub use file_table::*;
pub use index_table::*;
pub use metadata::*;

/// Unique Id for identifying snapback files that reference the same data. When restoring or
/// appending, all files (FileTable, IndexTable, BlockPool) must have the same Uid. This is mainly
/// used to avoid accidentally mixing backup files that are not compatible.
pub type Uid = [u8; 16];

pub(crate) trait AllZeroExt {
    /// Return true if all bytes contained in the type have the value zero
    fn is_all_zero(&self) -> bool;
}

impl AllZeroExt for Uid {
    fn is_all_zero(&self) -> bool {
        self.iter().all(|b| *b == 0)
    }
}