Method get_session_todos

atomic-core/src/pristine/txn/read.rs:584–608

Get all todos for a provenance graph. Returns snapshots of all todo items from the turn. Empty if the provenance is not Sherpa or has no session data.

(
        &self,
        provenance_id: u64,
    )

    /// Returns snapshots of all todo items from the turn.
    /// Empty if the provenance is not Sherpa or has no session data.
    pub fn get_session_todos(
        &self,
        provenance_id: u64,
    ) -> PristineResult<Vec<crate::change::session::TodoSnapshot>> {
        use crate::change::session::{encode_session_prefix, TodoSnapshot};

        let table = self.txn.open_table(SESSION_TODOS)?;
        let mut todos = Vec::new();

        // Bounded prefix scan: all todo keys for this provenance_id lie in
        // [prefix(id), prefix(id+1)).
        let start = encode_session_prefix(provenance_id);
        let end = encode_session_prefix(provenance_id.saturating_add(1));
        for result in table.range::<&[u8; 16]>(&start..&end)? {
            let (_key, value) = result?;
            match TodoSnapshot::from_bytes(value.value()) {
                Ok(snapshot) => todos.push(snapshot),
                Err(e) => {
                    log::warn!("Failed to deserialize todo snapshot: {}", e);
                }
            }
        }

        Ok(todos)
    }

    /// Get phase timing breakdown for a provenance graph.
    ///