Method already_seen

nodedb/src/control/array_sync/apply.rs:54–59

Return `true` if an op with `hlc` has already been applied to `array`. Performs a point scan on the op-log: if the key `(array, hlc)` exists, the op was previously applied.

(&self, array: &str, hlc: Hlc)

    /// Performs a point scan on the op-log: if the key `(array, hlc)` exists,
    /// the op was previously applied.
    pub fn already_seen(&self, array: &str, hlc: Hlc) -> bool {
        match self.op_log.scan_range(array, hlc, hlc) {
            Ok(mut iter) => iter.next().is_some(),
            Err(_) => false,
        }
    }

    /// Record that an op has been applied by appending it to the durable op-log.
    ///