Struct TransactionManager 

pub struct TransactionManager { /* private fields */ }

Filesystem-backed two-phase commit transaction manager.

Wrap in Arc and attach to ToolContext via with_staging_backend.

Implementations

impl TransactionManager

pub fn new() -> Result<Self>

Create a new manager using the system temp directory.

The staging directory is <tmpdir>/brainwires-txn-<uuid> and is created on construction.

pub fn with_dir(staging_dir: PathBuf) -> Result<Self>

Create a new manager using a specific staging directory.

The directory is created if it does not already exist.

Trait Implementations

impl Clone for TransactionManager

fn clone(&self) -> TransactionManager

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TransactionManager

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

Formats the value using the given formatter.

impl Drop for TransactionManager

fn drop(&mut self)

Executes the destructor for this type.

impl StagingBackend for TransactionManager

fn stage(&self, write: StagedWrite) -> bool

Stage a write operation.

fn commit(&self) -> Result<CommitResult>

Commit all staged writes to the filesystem.

fn rollback(&self)

Discard all staged writes without touching the filesystem.

fn pending_count(&self) -> usize

Return the number of pending staged writes.