Method write_record

nodedb-wal/src/double_write.rs:233–236

Write a WAL record to the double-write buffer before WAL append. The record is written at the current circular position and the file is fsynced immediately. Use `write_record_deferred` + `flush` for batch mode (multiple records per fsync).

(&mut self, record: &WalRecord)

    /// is fsynced immediately. Use `write_record_deferred` + `flush` for
    /// batch mode (multiple records per fsync).
    pub fn write_record(&mut self, record: &WalRecord) -> Result<()> {
        self.write_record_deferred(record)?;
        self.flush()
    }

    /// Write a WAL record to the DWB without fsyncing.
    ///