Function add_edge_with_reverse

atomic-core/src/apply/graph_batch.rs:334–346

Add a bidirectional edge pair through the cached writer, mapping storage errors into the apply error type. This is the single edge-writing entry point shared by both insertion and edge-update application.

(
    txn: &mut CachedWriteGraphTxn<'_, '_>,
    inode: Option<Inode>,
    flag: EdgeFlags,
    source: GraphNode<NodeId>,
    dest: GraphNode<NodeId>,
    introduced_by: NodeId,
)

/// This is the single edge-writing entry point shared by both insertion and
/// edge-update application.
pub(crate) fn add_edge_with_reverse(
    txn: &mut CachedWriteGraphTxn<'_, '_>,
    inode: Option<Inode>,
    flag: EdgeFlags,
    source: GraphNode<NodeId>,
    dest: GraphNode<NodeId>,
    introduced_by: NodeId,
) -> Result<(), LocalApplyError> {
    txn.add_edge_with_reverse(inode, flag, source, dest, introduced_by)
        .map_err(|e| LocalApplyError::Internal {
            message: format!("Failed to add edge pair: {}", e),
        })
}

#[inline]
fn deserialize_graph_edge(bytes: &[u8; 24]) -> SerializedGraphEdge {