Enum LogBackend 

pub enum LogBackend {
    Fs(PathBuf),
    Mem(MemLogRegistry),
}

Where a node’s per-database transaction logs live.

Variants

Fs(PathBuf)

Versioned log files under this directory.

Mem(MemLogRegistry)

In-memory versioned logs shared across a process.

Implementations

impl LogBackend

pub fn for_spec( spec: &StoreSpec, data_dir: &Path, store: Arc<NodeStore>, ) -> Self

The log backend that pairs with spec.

pub fn open( &self, name: &str, write_version: u64, ) -> Result<Arc<dyn TransactionLog>, LogError>

Opens the named log for writing under write_version.

Errors

Returns an error when a filesystem log cannot be opened.

pub fn exists(&self, name: &str) -> bool

Reports whether any log exists for name.

pub fn delete_all(&self, name: &str) -> Result<(), LogError>

Deletes every log for name.

Errors

Returns an error when a filesystem log cannot be removed.