Struct Checkpoint 

pub struct Checkpoint {
    pub protocol: String,
    pub role: RoleName,
    pub state_id: String,
    pub state_data: Vec<u8>,
    pub sequence: u64,
    pub metadata: BTreeMap<String, String>,
}

A checkpoint of protocol state for save/restore.

Fields

protocol: String

Protocol name.

role: RoleName

Current role.

state_id: String

State identifier (implementation-specific).

state_data: Vec<u8>

Serialized state data.

sequence: u64

Sequence number at checkpoint time.

metadata: BTreeMap<String, String>

Additional metadata (BTreeMap for deterministic iteration order).

Implementations

impl Checkpoint

pub fn new( protocol: impl Into<String>, role: RoleName, state_id: impl Into<String>, ) -> Self

Create a new checkpoint.

pub fn with_data(self, data: Vec<u8>) -> Self

Set the state data.

pub fn with_sequence(self, seq: u64) -> Self

Set the sequence number.

pub fn with_metadata( self, key: impl Into<String>, value: impl Into<String>, ) -> Self

Add metadata.

pub fn to_bytes(&self) -> Result<Vec<u8>, CheckpointError>

Serialize the checkpoint to bytes.

pub fn from_bytes(bytes: &[u8]) -> Result<Self, CheckpointError>

Deserialize a checkpoint from bytes.

Trait Implementations

impl Clone for Checkpoint

fn clone(&self) -> Checkpoint

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Checkpoint

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Checkpoint

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Checkpoint

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.