Struct ParameterMemrefOutput 

pub struct ParameterMemrefOutput<'a> { /* private fields */ }

A memory-reference output parameter.

The host provides a write-only buffer. The TA fills the buffer and report the final number of valid bytes via ParameterMemrefWrite::set_updated_size.

Trait Implementations

impl<'a> FromRawParameter<'a> for ParameterMemrefOutput<'a>

unsafe fn from_raw( raw_type: RawParamType, raw_param: &'a mut TEE_Param, ) -> Result<Self>

Construct Self from a raw parameter.

impl<'a> ParameterMemref for ParameterMemrefOutput<'a>

fn buffer_len(&self) -> usize

Returns the size of the shared buffer as supplied by the host, in bytes.

impl<'a> ParameterMemrefWrite for ParameterMemrefOutput<'a>

unsafe fn set_updated_size_unchecked(&mut self, size: usize)

Directly sets the updated size without bounds checking.

fn set_updated_size(&mut self, size: usize) -> Result<()>

Sets the updated size after bounds checking.

fn set_output<T: AsRef<[u8]>>(&mut self, data: T) -> Result<()>

Copies data into the buffer, then updates the reported size.

fn write_at<T: AsRef<[u8]>>(&mut self, offset: usize, data: T) -> Result<()>

Copies data into the buffer at the given offset, then updates the reported size to offset + data.len().