Trait ReadableClientSender

pub trait ReadableClientSender {
    type Transport: Transport;

    // Required method
    fn read<___R>(
        &self,
        request: &mut ___R,
    ) -> Result<ResponseFuture<'_, Self::Transport, Read>, EncodeError>
       where ___R: Encode<<Self::Transport as Transport>::SendBuffer, Encoded = WireReadableReadRequest>;
}

A helper trait for the Readable client sender.

Required Associated Types

type Transport: Transport

Required Methods

fn read<___R>( &self, request: &mut ___R, ) -> Result<ResponseFuture<'_, Self::Transport, Read>, EncodeError>

where ___R: Encode<<Self::Transport as Transport>::SendBuffer, Encoded = WireReadableReadRequest>,

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.

Implementations on Foreign Types

impl<___T> ReadableClientSender for ClientSender<___T, Readable>

where ___T: Transport,

fn read<___R>( &self, request: &mut ___R, ) -> Result<ResponseFuture<'_, Self::Transport, Read>, EncodeError>

where ___R: Encode<<Self::Transport as Transport>::SendBuffer, Encoded = WireReadableReadRequest>,

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.

type Transport = ___T

Implementors