Struct Context

pub struct Context {
    pub schedule: UpdateCheckSchedule,
    pub state: ProtocolState,
}

The Context provides the protocol context for a given update check operation. This is information that’s passed to the Policy to allow it to properly reason about what can and cannot be done at this time.

Fields

schedule: UpdateCheckSchedule

The last-computed time to next check for an update.

state: ProtocolState

The state of the protocol (retries, errors, etc.) as of the last update check that was attempted.

Implementations

impl Context

pub async fn load(storage: &impl Storage) -> Self

Load and initialize update check context from persistent storage.

pub async fn persist<'a>(&'a self, storage: &'a mut impl Storage)

Persist data in Context to |storage|, will try to set all of them to storage even if previous set fails. It will NOT call commit() on |storage|, caller is responsible to call commit().

Trait Implementations

impl Clone for Context

fn clone(&self) -> Context

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Context

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

Formats the value using the given formatter.