Trait LogPersistence 

pub trait LogPersistence<R>: Send + Sync {
    // Required methods
    fn load(
        &self,
        expected_object: ObjectIdentifier,
    ) -> Result<Option<LogSnapshot<R>>, Error>;
    fn commit(&self, snapshot: &LogSnapshot<R>) -> Result<(), Error>;
}

Application-owned storage for one log’s LogSnapshot.

The log calls load once, as it opens, and commit from its writer thread, one call at a time.

Required Methods

fn load( &self, expected_object: ObjectIdentifier, ) -> Result<Option<LogSnapshot<R>>, Error>

Load the newest valid snapshot for expected_object, or None when storage holds none yet.

fn commit(&self, snapshot: &LogSnapshot<R>) -> Result<(), Error>

Durably store snapshot, whose generation is one past the last one committed (or loaded).

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl LogPersistence<BACnetEventLogRecord> for FileLogPersistence

impl LogPersistence<BACnetLogMultipleRecord> for FileLogPersistence

impl LogPersistence<BACnetLogRecord> for FileLogPersistence