Trait PositionRead 

pub trait PositionRead:
    Send
    + Sync
    + Unpin
    + 'static {
    // Required method
    fn read_at(
        &self,
        offset: u64,
        size: usize,
    ) -> impl Future<Output = Result<Buffer>> + MaybeSend;
}

PositionRead is used to implement oio::Read based on positioned reads.

Services that implement PositionRead must support position-independent reads. size is the maximum number of bytes to read, and implementations may return fewer bytes. Returning an empty buffer means EOF.

Required Methods

fn read_at( &self, offset: u64, size: usize, ) -> impl Future<Output = Result<Buffer>> + MaybeSend

Read up to size bytes from offset.

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