Trait ReadableServerHandler 

pub trait ReadableServerHandler<___T: Transport = Channel> {
    // Required method
    fn read(
        &mut self,
        request: Request<Read, ___T>,
        responder: Responder<Read, ___T>,
    ) -> impl Future<Output = ()> + Send;
}

A server handler for the Readable protocol.

See Readable for more details.

Required Methods

fn read( &mut self, request: Request<Read, ___T>, responder: Responder<Read, ___T>, ) -> impl Future<Output = ()> + Send

Reads up to ‘count’ bytes at the seek offset. The seek offset is moved forward by the number of bytes read.

Invariants

• The returned data.length will never be greater than count.
• If data.length is less than count, it means that the seek offset has reached the end of file as part of this operation.
• If data.length is zero while count is not, it means that the seek offset is already at or beyond the end of file, and no data could be read.
• If count is zero, the server should perform all the checks ensuring read access without actually read anything, and return an empty data vector.

This method requires the [Rights.READ_BYTES] right.

Returns ZX_ERR_OUT_OF_RANGE if count is greater than MAX_TRANSFER_SIZE.

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