Method sync

crates/commitlog/src/commitlog.rs:135–141

Force the currently active segment to be flushed to storage. Using a filesystem backend, this means to call `fsync(2)`. Note** that this does not flush the buffered data from calls to [Self::commit], it only instructs the underlying storage to flush its buffers. Call [Self::flush] prior to this method to ensure data from all previous [Self::commit] calls is flushed to the underlying storage. #

(&mut self)

    /// this method panics in this case, thereby preventing any further writes
    /// to the log and forcing the user to re-read the state from disk.
    pub fn sync(&mut self) {
        self.panicked = true;
        if let Err(e) = self.head.fsync() {
            panic!("Failed to fsync segment: {e}");
        }
        self.panicked = false;
    }

    /// Flush the buffered data from previous calls to [Self::commit] to the
    /// underlying storage.