Trait Blob

pub trait Blob:
    Send
    + Sync
    + 'static {
    // Required methods
    fn len(&self) -> impl Future<Output = Result<usize, Error>> + Send;
    fn read_at(
        &mut self,
        buf: &mut [u8],
        offset: usize,
    ) -> impl Future<Output = Result<usize, Error>> + Send;
    fn write_at(
        &mut self,
        buf: &[u8],
        offset: usize,
    ) -> impl Future<Output = Result<(), Error>> + Send;
    fn truncate(
        &mut self,
        len: usize,
    ) -> impl Future<Output = Result<(), Error>> + Send;
    fn sync(&mut self) -> impl Future<Output = Result<(), Error>> + Send;
    fn close(&mut self) -> impl Future<Output = Result<(), Error>> + Send;
}

Interface to read and write to a blob.

Required Methods

fn len(&self) -> impl Future<Output = Result<usize, Error>> + Send

Get the length of the blob.

fn read_at( &mut self, buf: &mut [u8], offset: usize, ) -> impl Future<Output = Result<usize, Error>> + Send

Read from the blob at the given offset.

fn write_at( &mut self, buf: &[u8], offset: usize, ) -> impl Future<Output = Result<(), Error>> + Send

Write to the blob at the given offset.

fn truncate( &mut self, len: usize, ) -> impl Future<Output = Result<(), Error>> + Send

Truncate the blob to the given length.

fn sync(&mut self) -> impl Future<Output = Result<(), Error>> + Send

Ensure all pending data is durably persisted.

fn close(&mut self) -> impl Future<Output = Result<(), Error>> + Send

Close the blob.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl Blob for commonware_runtime::deterministic::Blob

impl Blob for commonware_runtime::tokio::Blob