Method open_readonly

atomic-core/src/pristine/txn/pristine.rs:226–232

Open an existing pristine database in read-only mode This method opens the database without acquiring a write lock, allowing concurrent read access from multiple processes. It's suitable for read-only operations like `status`, `diff`, `log`, and `change`. # Errors Returns an error if: - The database file doesn't exist - The database is corrupted - Read access cannot be obtained # Example ```i

(path: P)

    /// // Read operations...
    /// ```
    pub fn open_readonly<P: AsRef<Path>>(path: P) -> PristineResult<Self> {
        // Open database without creating (read-only mode)
        // Use the same 8 GiB cache as open() for consistent performance.
        let cache_bytes = 8 * 1024 * 1024 * 1024; // 8 GiB
        let db = Builder::new().set_cache_size(cache_bytes).open(path)?;
        Self::scan_ids(db)
    }

    /// Scan existing tables for the next available IDs.
    ///