template <>class WireWeakAsyncBufferClientImpl
Defined at line 26738 of file fidling/gen/sdk/fidl/fuchsia.io/fuchsia.io/cpp/fidl/fuchsia.io/cpp/wire_messaging.h
Public Methods
::fidl::internal::WireBufferThenable< ::fuchsia_io::Readable::Read> Read (uint64_t count)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`.
Caller provides the backing storage for FIDL message.