Method propose

nodedb-raft/src/node/core.rs:241–269

Propose a new entry (leader only). Returns the log index.

(&mut self, data: Vec<u8>)

    /// Propose a new entry (leader only). Returns the log index.
    pub fn propose(&mut self, data: Vec<u8>) -> Result<u64> {
        if self.role != NodeRole::Leader {
            return Err(RaftError::NotLeader {
                leader_hint: if self.leader_id != 0 {
                    Some(self.leader_id)
                } else {
                    None
                },
            });
        }

        let index = self.log.last_index() + 1;
        let entry = LogEntry {
            term: self.hard_state.current_term,
            index,
            data,
        };

        self.log.append(entry)?;
        self.replicate_to_all();

        // Single-voter cluster: commit immediately. Learners do not count.
        if self.config.cluster_size() == 1 {
            self.volatile.commit_index = index;
            self.collect_committed_entries();
        }

        Ok(index)
    }
}

#[cfg(test)]