Function encode_session_phase_key

atomic-core/src/change/session.rs:485–492

(provenance_id: u64, phase_name: &str)

/// the B-tree) matches numeric order, enabling correct prefix range scans.
#[inline]
pub fn encode_session_phase_key(provenance_id: u64, phase_name: &str) -> [u8; 16] {
    let hash = blake3::hash(phase_name.as_bytes());
    let hash_bytes = hash.as_bytes();
    let mut key = [0u8; 16];
    key[0..8].copy_from_slice(&provenance_id.to_be_bytes());
    key[8..16].copy_from_slice(&hash_bytes[0..8]);
    key
}

/// Decode the `provenance_id` from a `SESSION_PHASES` key.
///